{"id":4426,"date":"2026-07-06T09:38:02","date_gmt":"2026-07-06T07:38:02","guid":{"rendered":"https:\/\/bwlaw.de\/practice-areas\/construction-law\/"},"modified":"2026-10-23T15:24:49","modified_gmt":"2026-10-23T13:24:49","slug":"construction-law","status":"publish","type":"page","link":"https:\/\/bwlaw.de\/en\/practice-areas\/construction-law\/","title":{"rendered":"Building in Germany? We pursue your payment claims."},"content":{"rendered":"\n<div id=\"progress\" aria-hidden=\"true\"><\/div>\n\n<header>\n  <div class=\"wrap\">\n    <a href=\"\/en\/\" class=\"brand\" aria-label=\"BWLAW \u2013 home\"><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/themes\/bwlaw-child-1\/assets\/img\/logo-bw.png\" alt=\"BWLAW \u2013 law firm in Germany\" width=\"42\" height=\"28\"><\/a>\n    <nav aria-label=\"Main navigation\">\n      <a href=\"https:\/\/bwlaw.de\/en\/practice-areas\/construction-law\/\" class=\"active\" aria-current=\"page\">Construction law<\/a>\n      <a href=\"https:\/\/bwlaw.de\/en\/practice-areas\/debt-collection\/\">Debt collection<\/a>\n      <a href=\"https:\/\/bwlaw.de\/en\/practice-areas\/company-formation\/\">Corporate law<\/a>\n      <a href=\"https:\/\/bwlaw.de\/en\/practice-areas\/employment-law\/\">Employment law<\/a>\n      <a href=\"\/en\/defective-car-from-germany\/\">Cars<\/a>\n      <a href=\"https:\/\/bwlaw.de\/en\/knowledge-base\/\">Knowledge base<\/a>\n      <a href=\"\/en\/#zespol\">Team<\/a>\n    <\/nav>\n    <a href=\"#kontakt\" class=\"btn\">Contact us <span class=\"arr\">\u2192<\/span><\/a>\n    <button class=\"burger\" aria-label=\"Menu\">\u2630<\/button>\n  <\/div>\n<\/header>\n\n<!-- HERO -->\n<section class=\"shero\">\n  <div class=\"glow\"><\/div>\n  <div class=\"wrap\">\n    <div>\n      <nav class=\"crumbs\" aria-label=\"Breadcrumbs\"><a href=\"\/en\/\">Home<\/a><span>\/<\/span><a href=\"\/en\/#specjalizacje\">Practice areas<\/a><span>\/<\/span><b>Construction law<\/b><\/nav>\n      <span class=\"eyebrow\">Construction law in Germany<\/span>\n      <h1>Building in Germany? <em>We pursue your payment claims.<\/em><\/h1>\n      <p class=\"lead\">German construction law follows its own rules: VOB\/B, obstruction notices, strict notification deadlines. Those who do not know them lose money. We secure your contract before you sign and enforce payment after the work \u2014 across Germany, in English.<\/p>\n      <div class=\"cta-row\">\n        <a href=\"#kontakt\" class=\"btn\">Send us your contract or invoices <span class=\"arr\">\u2192<\/span><\/a>\n        <a href=\"tel:+4933555310969\" class=\"btn ghost\" style=\"color:#fff\">\u260e +49 335 553 10969<\/a>\n      <\/div>\n      <div class=\"badges\">\n        <span class=\"badge\">BGB and VOB\/B contracts<\/span>\n        <span class=\"badge\">Sec. 650f BGB \u2014 payment security<\/span>\n        <span class=\"badge\">Variation claims (Nachtr\u00e4ge)<\/span>\n      <\/div>\n    <\/div>\n    <div class=\"ph rv\"><img decoding=\"async\" src=\"\/wp-content\/themes\/bwlaw-child-1\/assets\/img\/artur-stojacy-2026.webp\" srcset=\"\/wp-content\/themes\/bwlaw-child-1\/assets\/img\/artur-stojacy-2026-600.webp 600w, \/wp-content\/themes\/bwlaw-child-1\/assets\/img\/artur-stojacy-2026.webp 1200w\" sizes=\"(max-width: 900px) 92vw, 520px\" width=\"1200\" height=\"1800\" alt=\"Dr. Artur Barczewski, construction law in Germany, BWLAW in Frankfurt (Oder)\" fetchpriority=\"high\" style=\"object-position:center 20%\"><\/div>\n  <\/div>\n<\/section>\n\n<style id=\"bwx-baurecht\">\n\/* bwx: zdj\u0119cia + infografiki strony prawa budowlanego, 23.10.2026 (build.py w bwlaw-de-tools\/baurecht-grafiken-20261023) *\/\n.bwx-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,380px);gap:clamp(1.6rem,4vw,3.4rem);align-items:center}\n.bwx-split--top{align-items:start}\n.bwx-ph{position:relative;margin:0;border-radius:22px;overflow:hidden;aspect-ratio:4\/5;box-shadow:0 24px 60px rgba(22,21,19,.14);background:var(--ivory-dim)}\n.bwx-ph img{width:100%;height:100%;object-fit:cover}\n.bwx-ph figcaption{position:absolute;left:.8rem;right:.8rem;bottom:.8rem;background:rgba(22,21,19,.74);color:#fff;border-radius:14px;padding:.55rem .85rem;font-size:.78rem;line-height:1.4}\n.bwx-ph figcaption b{display:block;font-family:var(--font-head);font-size:.9rem}\n.bwx-sticky{position:sticky;top:110px}\n.bwx-wide{aspect-ratio:3\/2}\n.bwx-sq{aspect-ratio:1\/1}\n.bwx-eye{font-family:var(--font-accent);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--terra);font-weight:700;margin:0 0 .9rem}\n.bwx-steps .stp::before{display:none}\n.bwx-steps .stp{align-items:flex-start}\n.bwx-ico{position:relative;flex:0 0 48px;height:48px;border-radius:14px;background:rgba(194,85,49,.1);color:var(--terra);display:flex;align-items:center;justify-content:center}\n.bwx-ico svg,.bwx-pico svg,.bwx-flow__ico svg,.bwx-sf__c svg{width:24px;height:24px}\n.bwx-ico::after{content:counter(st);position:absolute;top:-6px;right:-6px;width:20px;height:20px;border-radius:50%;background:var(--terra);color:#fff;font:700 .66rem\/20px 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li{position:relative;text-align:center;font-size:.84rem;line-height:1.45;color:var(--ink-soft)}\n.bwx-flow__ico{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;width:56px;height:56px;margin:0 auto .7rem;border-radius:50%;background:#fff;border:3px solid var(--terra);color:var(--terra)}\n.bwx-flow__track li.is-key .bwx-flow__ico{background:var(--terra);color:#fff}\n.bwx-flow__track b{display:block;font-family:var(--font-head);font-size:.98rem;color:var(--ink);margin:0 0 .2rem}\n\/* r\u0119kojmia BGB \/ VOB\/B *\/\n.bwx-bars{margin:1.4rem 0 0;max-width:820px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:1rem 1.15rem}\n.bwx-bars div{display:grid;grid-template-columns:4.2rem 1fr;gap:.2rem .9rem;align-items:center;margin:0 0 .7rem}\n.bwx-bars div:last-child{margin:0}\n.bwx-bars b{font-family:var(--font-head);font-size:.95rem;color:var(--ink)}\n.bwx-bars 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4px}\n.bwx-sf__c{flex:1;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:.9rem .95rem;color:#E8946B}\n.bwx-sf__c b{display:block;font-family:var(--font-head);font-size:.98rem;color:#fff;margin:.5rem 0 .3rem}\n.bwx-sf__c span{display:block;font-size:.85rem;line-height:1.5;color:rgba(255,255,255,.8)}\n.bwx-sf__c--act{background:var(--terra);border-color:var(--terra);color:#fff}\n.bwx-sf__c--act span{color:#fff}\n.hl .bwx-sf p.bwx-sf__note{margin:.9rem 0 0;font-size:.82rem;color:rgba(255,255,255,.7);max-width:none}\n\/* liczby *\/\n.bwx-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.7rem;margin-top:1.1rem;max-width:760px}\n.bwx-stats div{background:var(--ivory);border:1px solid var(--line);border-radius:16px;padding:.85rem .9rem}\n.bwx-stats b{display:block;font-family:var(--font-head);font-size:clamp(1.25rem,2.6vw,1.6rem);color:var(--terra);line-height:1.1;margin:0 0 .3rem}\n.bwx-stats span{display:block;font-size:.82rem;color:var(--ink-soft);line-height:1.4}\n.bwx-split .prose{margin-top:0}\n@media(max-width:900px){\n .bwx-split{grid-template-columns:1fr}\n .bwx-side{max-width:420px;aspect-ratio:4\/3.3}\n .bwx-side.bwx-wide{aspect-ratio:3\/2}\n .bwx-sticky{position:static}\n .bwx-flow__track{grid-template-columns:1fr;gap:0}\n .bwx-flow__track:before{left:27px;right:auto;top:28px;bottom:28px;width:3px;height:auto;background:linear-gradient(180deg,#E8946B,var(--terra) 70%,var(--terra-dark))}\n .bwx-flow__track li{display:grid;grid-template-columns:56px 1fr;column-gap:.9rem;text-align:left;padding:0 0 1rem}\n .bwx-flow__track li:last-child{padding:0}\n .bwx-flow__ico{grid-row:1\/3;margin:0}\n}\n@media(max-width:640px){\n .bwx-sf__cols{flex-direction:column}\n .bwx-sf__cols li{flex-direction:column}\n .bwx-sf__cols li+li:before{flex:0 0 18px;width:14px;height:18px;margin:4px auto;clip-path:polygon(35% 0,65% 0,65% 55%,100% 55%,50% 100%,0 55%,35% 55%)}\n .bwx-stats{grid-template-columns:1fr;gap:.5rem}\n .bwx-stats div{display:flex;align-items:baseline;gap:.8rem;padding:.65rem .85rem}\n .bwx-stats b{flex:0 0 6.2rem;font-size:1.2rem;margin:0}\n}\n<\/style>\n<!-- PROBLEMY -->\n<section class=\"sec\">\n  <div class=\"wrap\">\n    <div class=\"sec-head rv\">\n      <span class=\"eyebrow\">What companies bring to us<\/span>\n      <h2>The problems we solve most often<\/h2>\n    <\/div>\n    <figure class=\"bwx-flow rv d1\" role=\"group\" aria-label=\"Graphic: the route from contract to payment for construction work\"><p class=\"bwx-eye\">Your route to payment<\/p><ol class=\"bwx-flow__track\"><li><span class=\"bwx-flow__ico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M14 3.5H6.5a2 2 0 0 0-2 2v13a2 2 0 0 0 2 2h11a2 2 0 0 0 2-2V9z\"\/><path d=\"M14 3.5V9h5.5M8 13h7M8 16.5h4.5\"\/><\/svg><\/span><b>Contract review<\/b><span>before signing: BGB or VOB\/B<\/span><\/li><li><span class=\"bwx-flow__ico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M4 20.5h16\"\/><path d=\"M14.5 4.5l5 5L9 20H4v-5z\"\/><\/svg><\/span><b>Documentation<\/b><span>obstructions, concerns and variations in writing<\/span><\/li><li><span class=\"bwx-flow__ico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><circle cx=\"12\" cy=\"12\" r=\"9\"\/><path d=\"m8 12.3 2.8 2.8 5.4-5.6\"\/><\/svg><\/span><b>Acceptance (Abnahme)<\/b><span>payment falls due (sec.\u00a0641 (1) BGB)<\/span><\/li><li><span class=\"bwx-flow__ico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><circle cx=\"12\" cy=\"12\" r=\"9\"\/><path d=\"M15.5 8.6a4.2 4.2 0 1 0 0 6.8M7 10.8h6M7 13.2h6\"\/><\/svg><\/span><b>Final invoice<\/b><span>meet the formal requirements<\/span><\/li><li class=\"is-key\"><span class=\"bwx-flow__ico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M12 4v16.5M7.5 20.5h9M4.5 7h15\"\/><path d=\"M4.5 7 2 13a2.6 2.6 0 0 0 5 0zM19.5 7 17 13a2.6 2.6 0 0 0 5 0z\"\/><\/svg><\/span><b>Enforcing payment<\/b><span>demand letter, securities, claim<\/span><\/li><\/ol><\/figure>\n    <div class=\"probs rv d1\">\n      <div class=\"prob\"><span class=\"bwx-pico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><circle cx=\"12\" cy=\"12\" r=\"9\"\/><path d=\"M15.5 8.6a4.2 4.2 0 1 0 0 6.8M7 10.8h6M7 13.2h6\"\/><\/svg><\/span><span class=\"no\">01<\/span><b>Unpaid work<\/b><p>Demand letters, securities, payment claims \u2014 consistently, until the money is in your account.<\/p><\/div>\n      <div class=\"prob\"><span class=\"bwx-pico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M12 3.5 2.5 20h19z\"\/><path d=\"M12 10v4.5M12 17.3v.1\"\/><\/svg><\/span><span class=\"no\">02<\/span><b>Deductions for alleged defects<\/b><p>Defence against inflated defect lists and substitute performance costs.<\/p><\/div>\n      <div class=\"prob\"><span class=\"bwx-pico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><circle cx=\"12\" cy=\"12\" r=\"9\"\/><path d=\"M12 7v5l3.2 2\"\/><\/svg><\/span><span class=\"no\">03<\/span><b>Contractual penalties for delay<\/b><p>Reviewing the validity of penalty clauses and documenting obstructions caused by the principal.<\/p><\/div>\n      <div class=\"prob\"><span class=\"bwx-pico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><circle cx=\"12\" cy=\"12\" r=\"9\"\/><path d=\"m8 12.3 2.8 2.8 5.4-5.6\"\/><\/svg><\/span><span class=\"no\">04<\/span><b>Refused acceptance<\/b><p>Enforcing acceptance (Abnahme) or its legal effects when the principal delays.<\/p><\/div>\n      <div class=\"prob\"><span class=\"bwx-pico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M14 3.5H6.5a2 2 0 0 0-2 2v13a2 2 0 0 0 2 2h11a2 2 0 0 0 2-2V9z\"\/><path d=\"M14 3.5V9h5.5M12 12v6M9 15h6\"\/><\/svg><\/span><span class=\"no\">05<\/span><b>Variations (Nachtr\u00e4ge)<\/b><p>Valuing and enforcing payment for scope changes \u2014 the party that documents wins.<\/p><\/div>\n      <div class=\"prob\"><span class=\"bwx-pico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><rect x=\"4.5\" y=\"10.5\" width=\"15\" height=\"10\" rx=\"2\"\/><path d=\"M8 10.5V7.5a4 4 0 0 1 8 0v3M12 14.5v2.5\"\/><\/svg><\/span><span class=\"no\">06<\/span><b>Retained securities<\/b><p>Recovering security retentions after the deadlines have passed.<\/p><\/div>\n    <\/div>\n    <!-- PV-LINK --><div class=\"mini-cta rv\"><b>Building or servicing solar farms in Germany?<\/b><span style=\"color:var(--ink-soft);font-size:.92rem\">We review and negotiate EPC and O&amp;M contracts and help with plant acceptance and payment for installation work.<\/span><a href=\"https:\/\/bwlaw.de\/en\/solar-farm-contracts-germany\/\" class=\"btn\">Solar farm contracts <span class=\"arr\">\u2192<\/span><\/a><\/div>\r\n  <\/div>\n<\/section>\n\n<!-- UMOWA \/ VOB -->\n<section class=\"sec alt\">\n  <div class=\"wrap\">\n    <div class=\"sec-head rv\">\n      <span class=\"eyebrow\">Before you sign<\/span>\n      <h2>The contract before signing: BGB or VOB\/B?<\/h2>\n      <p>In Germany a construction contract is governed by the Civil Code (BGB) or additionally incorporates the VOB\/B standard conditions. VOB\/B can be advantageous \u2014 but it imposes duties foreign companies often do not know:<\/p>\n    <\/div>\n    <div class=\"bwx-split bwx-split--top\"><div><div class=\"steps bwx-steps rv d1\">\n      <div class=\"stp\"><span class=\"bwx-ico\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M3.5 10v4h3l7 4.5v-13l-7 4.5z\"\/><path d=\"M17 9a4 4 0 0 1 0 6M6.5 14l1.2 5h2.3l-.8-4\"\/><\/svg><\/span><div><b>Obstruction notice (Behinderungsanzeige)<\/b><p>Delays caused by the principal must be notified in writing immediately \u2014 otherwise they are hard to rely on later.<\/p><\/div><\/div>\n      <div class=\"stp\"><span class=\"bwx-ico\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M4 20.5h16\"\/><path d=\"M14.5 4.5l5 5L9 20H4v-5z\"\/><\/svg><\/span><div><b>Reservation notice (Bedenkenanmeldung)<\/b><p>A contractor who fails to raise concerns in writing may be liable for others\u2019 mistakes.<\/p><\/div><\/div>\n      <div class=\"stp\"><span class=\"bwx-ico\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><rect x=\"3.5\" y=\"5\" width=\"17\" height=\"15.5\" rx=\"2.5\"\/><path d=\"M3.5 9.5h17M8 3v4M16 3v4M8 13.5h2.5M13.5 13.5H16M8 17h2.5\"\/><\/svg><\/span><div><b>Warranty periods<\/b><p>For buildings generally 4 years under VOB\/B versus 5 years under BGB \u2014 the difference matters for defect claims.<\/p><\/div><\/div>\n      <div class=\"stp\"><span class=\"bwx-ico\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M14 3.5H6.5a2 2 0 0 0-2 2v13a2 2 0 0 0 2 2h11a2 2 0 0 0 2-2V9z\"\/><path d=\"M14 3.5V9h5.5M8 13h7M8 16.5h4.5\"\/><\/svg><\/span><div><b>Interim and final invoicing<\/b><p>The formal requirements for the final invoice (Schlussrechnung) can block additional payments.<\/p><\/div><\/div>\n    <\/div><figure class=\"bwx-bars rv d2\" role=\"group\" aria-label=\"Graphic: warranty period for buildings under BGB and VOB\/B\"><p class=\"bwx-eye\">Warranty for buildings<\/p><div class=\"is-b\"><b>BGB<\/b><i style=\"--w:100%\">5 years<\/i><span>sec.\u00a0634a (1) no.\u00a02 BGB<\/span><\/div><div><b>VOB\/B<\/b><i style=\"--w:80%\">4 years<\/i><span>as a rule, sec.\u00a013 (4) VOB\/B<\/span><\/div><\/figure><\/div><figure class=\"bwx-ph bwx-side rv d1\"><img src=\"\/wp-content\/themes\/bwlaw-child-1\/assets\/img\/duett-vertrag-2026.webp\" srcset=\"\/wp-content\/themes\/bwlaw-child-1\/assets\/img\/duett-vertrag-2026-560.webp 560w, \/wp-content\/themes\/bwlaw-child-1\/assets\/img\/duett-vertrag-2026.webp 900w\" sizes=\"auto, (max-width: 900px) 92vw, 380px\" width=\"900\" height=\"1125\" alt=\"Dr. Artur Barczewski and Dr. Karolina Wr\u00f3blewska reviewing documents\" loading=\"lazy\" decoding=\"async\" style=\"object-position:45% 30%\"><figcaption><b>Contract review before signing<\/b>Dr. Artur Barczewski and Dr. Karolina Wr\u00f3blewska<\/figcaption><\/figure><\/div>\n    <div class=\"mini-cta rv\"><b>The cheapest moment for a lawyer is before you sign.<\/b><span style=\"color:var(--ink-soft);font-size:.92rem\">A contract review costs a fraction of a dispute over retained payment.<\/span><a href=\"#kontakt\" class=\"btn\">Send the contract for review <span class=\"arr\">\u2192<\/span><\/a><\/div>\n  <\/div>\n<\/section>\n\n<!-- ZABEZPIECZENIA -->\n<section class=\"sec\">\n  <div class=\"wrap\">\n    <div class=\"sec-head rv\">\n      <span class=\"eyebrow\">Your leverage<\/span>\n      <h2>Securing payment for construction work<\/h2>\n    <\/div>\n    <div class=\"hl rv\">\n      <span class=\"eyebrow\">Sec. 650f BGB<\/span>\n      <h3>Bauhandwerkersicherung \u2014 the tool most subcontractors do not know<\/h3>\n      <p>The contractor may demand security for payment from the principal (e.g. a bank guarantee) \u2014 and if it is not provided in time, may suspend the works and even terminate the contract while keeping all claims. One of the most effective levers in German construction law.<\/p>\n    <div class=\"bwx-sf\" role=\"group\" aria-label=\"Graphic: security under sec. 650f BGB in three steps\"><p class=\"bwx-eye\">How sec.\u00a0650f BGB works<\/p><ol class=\"bwx-sf__cols\"><li><div class=\"bwx-sf__c\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M12 3 4.5 6v5.5c0 4.6 3.2 8.2 7.5 9.5 4.3-1.3 7.5-4.9 7.5-9.5V6z\"\/><path d=\"m8.8 12.2 2.3 2.3 4.3-4.6\"\/><\/svg><b>Demand security<\/b><span>for the unpaid remuneration plus 10\u00a0% for ancillary claims, e.g. a bank guarantee (sec.\u00a0650f (1) and (2) BGB)<\/span><\/div><\/li><li><div class=\"bwx-sf__c\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><circle cx=\"12\" cy=\"12\" r=\"9\"\/><path d=\"M12 7v5l3.2 2\"\/><\/svg><b>Set a reasonable deadline<\/b><span>The principal does not provide the security.<\/span><\/div><\/li><li><div class=\"bwx-sf__c bwx-sf__c--act\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><circle cx=\"12\" cy=\"12\" r=\"9\"\/><path d=\"m8 12.3 2.8 2.8 5.4-5.6\"\/><\/svg><b>Suspend work or terminate<\/b><span>On termination the agreed remuneration remains, less saved expenses, presumed: 5\u00a0% of the remuneration for the unperformed part (sec.\u00a0650f (5) BGB).<\/span><\/div><\/li><\/ol><p class=\"bwx-sf__note\">Cannot be excluded by contract (sec.\u00a0650f (7) BGB). Exceptions: consumers under a consumer construction or property developer contract and public bodies that cannot become insolvent (sec.\u00a0650f (6) BGB).<\/p><\/div>\n    <\/div>\n    <div class=\"probs rv d1\">\n      <div class=\"prob\"><span class=\"bwx-pico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M3.5 11 12 4l8.5 7\"\/><path d=\"M5.5 9.5V20h13V9.5M10 20v-5h4v5\"\/><\/svg><\/span><b>Security mortgage (sec. 650e BGB)<\/b><p>A security mortgage for earned remuneration can be registered on the principal\u2019s property.<\/p><\/div>\n      <div class=\"prob\"><span class=\"bwx-pico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><circle cx=\"12\" cy=\"12\" r=\"9\"\/><path d=\"m8 12.3 2.8 2.8 5.4-5.6\"\/><\/svg><\/span><b>Acceptance (Abnahme)<\/b><p>Upon acceptance payment falls due and the burden of proof for defects shifts to the principal. We enforce formal or implied acceptance.<\/p><\/div>\n      <div class=\"prob\"><span class=\"bwx-pico\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M19 5 5 19\"\/><circle cx=\"7\" cy=\"7\" r=\"2.5\"\/><circle cx=\"17\" cy=\"17\" r=\"2.5\"\/><\/svg><\/span><b>Interest and recovery costs<\/b><p>In B2B matters we consistently add statutory default interest and recovery costs to the claim.<\/p><\/div>\n    <\/div>\n    <div class=\"bwx-stats rv d2\"><div><b>9 points<\/b><span>above the base rate: default interest between businesses (sec.\u00a0288 (2) BGB)<\/span><\/div><div><b>\u20ac40<\/b><span>lump sum when a business pays late, also for interim invoices (sec.\u00a0288 (5) BGB)<\/span><\/div><\/div>\n    <div class=\"bwx-split\" style=\"margin-top:2rem\"><div class=\"prose rv d2\">\n      <h3>For design offices: HOAI<\/h3>\n      <p>The HOAI is the German fee scale under which architects and engineers calculate their remuneration towards their clients. We support design offices in enforcing HOAI-based fees and review design contracts and service phases \u2014 and advise principals who want an HOAI invoice verified.<\/p>\n    <\/div><figure class=\"bwx-ph bwx-side bwx-sq rv d1\"><img src=\"\/wp-content\/themes\/bwlaw-child-1\/assets\/img\/artur-schreibtisch-2026.webp\" srcset=\"\/wp-content\/themes\/bwlaw-child-1\/assets\/img\/artur-schreibtisch-2026-560.webp 560w, \/wp-content\/themes\/bwlaw-child-1\/assets\/img\/artur-schreibtisch-2026.webp 900w\" sizes=\"auto, (max-width: 900px) 92vw, 380px\" width=\"900\" height=\"1125\" alt=\"Dr. Artur Barczewski at his desk\" loading=\"lazy\" decoding=\"async\" style=\"object-position:50% 30%\"><\/figure><\/div>\n  <\/div>\n<\/section>\n\n\n<!-- LEAD MAGNET -->\n<section class=\"sec\">\n  <div class=\"wrap\">\n    <div class=\"magnet rv\" id=\"materialy\">\n      <div class=\"magnet-ico\">\u2b07<\/div>\n      <div>\n        <b>Principal not paying \u2014 5-step checklist (PDF)<\/b>\n        <p>From securing site documentation to the sec. 650f BGB security demand \u2014 the sequence that most often unlocks payment.<\/p>\n      <\/div>\n      <form class=\"magnet-form\" method=\"post\" action=\"\/wp-admin\/admin-post.php\">\r\n        <input type=\"hidden\" name=\"action\" value=\"bwlaw_lead\">\r\n        <input type=\"hidden\" name=\"magnet\" value=\"bau-en\">\r\n        <input type=\"text\" name=\"bw_website\" tabindex=\"-1\" autocomplete=\"off\" aria-hidden=\"true\" style=\"position:absolute;left:-9999px;width:1px;height:1px;opacity:0\">\r\n        <input type=\"email\" name=\"email\" required placeholder=\"Your e-mail address\" aria-label=\"E-mail address\">\r\n        <label class=\"optin\"><input type=\"checkbox\" name=\"zgoda_material\" value=\"1\" required><span>Please send the checklist to the e-mail address provided. <a href=\"\/en\/privacy-policy\/\" target=\"_blank\" rel=\"noopener\">Privacy notice<\/a>.<\/span><\/label>\r\n        <label class=\"optin\"><input type=\"checkbox\" name=\"zgoda_marketing\" value=\"1\"><span>I would also like to receive information about changes in German law. I can withdraw this consent at any time.<\/span><\/label>\r\n        <button class=\"btn\" type=\"submit\">Send confirmation link <span class=\"arr\">\u2192<\/span><\/button>\r\n      <\/form>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- FAQ -->\n<section class=\"sec alt\">\n  <div class=\"wrap\">\n    <div class=\"sec-head rv\">\n      <span class=\"eyebrow\">FAQ<\/span>\n      <h2>Frequently asked questions from construction practice<\/h2>\n    <\/div>\n    <div class=\"bwx-split bwx-split--top\"><div class=\"faq-list rv d1\">\n      <div class=\"qa open\">\n        <button aria-expanded=\"true\">The principal is not paying the final invoice. Where do we start?<span class=\"pl\">+<\/span><\/button>\n        <div class=\"ans\"><div><p>With analysis: was there acceptance, is the final invoice verifiable, what objections does the principal raise. Then usually: a demand letter with a deadline, a security demand under sec. 650f BGB and \u2014 if needed \u2014 a lawsuit. Often this sequence alone unlocks payment.<\/p><\/div><\/div>\n      <\/div>\n      <div class=\"qa\">\n        <button aria-expanded=\"false\">Can I simply walk off the site if I am not paid?<span class=\"pl\">+<\/span><\/button>\n        <div class=\"ans\"><div><p>Not \u201csimply\u201d \u2014 an unauthorised stoppage can create claims against you. The safe route runs through written demands and sec. 650f BGB: demand security, suspend the works and, if necessary, terminate while keeping your claims.<\/p><\/div><\/div>\n      <\/div>\n      <div class=\"qa\">\n        <button aria-expanded=\"false\">The contractual penalties look threatening. Do they always apply?<span class=\"pl\">+<\/span><\/button>\n        <div class=\"ans\"><div><p>No. Case law limits penalties in standard terms \u2014 generally to about 5% of the contract sum with daily caps. A penalty may also fail where the delay results from obstructions caused by the principal \u2014 which is why the obstruction notice matters so much.<\/p><\/div><\/div>\n      <\/div>\n      <div class=\"qa\">\n        <button aria-expanded=\"false\">How long can I claim payment for completed works?<span class=\"pl\">+<\/span><\/button>\n        <div class=\"ans\"><div><p>Payment claims generally become time-barred three years from the end of the year in which they fell due. These are general rules \u2014 depending on the contract and type of claim the period and its start may differ (e.g. from acceptance). Do not wait: the fresher the documentation, the stronger your position.<\/p><\/div><\/div>\n      <\/div>\n    <\/div><figure class=\"bwx-ph bwx-side bwx-sticky rv d1\"><img src=\"\/wp-content\/themes\/bwlaw-child-1\/assets\/img\/duett-team-2026.webp\" srcset=\"\/wp-content\/themes\/bwlaw-child-1\/assets\/img\/duett-team-2026-560.webp 560w, \/wp-content\/themes\/bwlaw-child-1\/assets\/img\/duett-team-2026.webp 900w\" sizes=\"auto, (max-width: 900px) 92vw, 380px\" width=\"900\" height=\"1125\" alt=\"Dr. Artur Barczewski and Dr. Karolina Wr\u00f3blewska\" loading=\"lazy\" decoding=\"async\" style=\"object-position:55% 30%\"><\/figure><\/div>\n  <\/div>\n<\/section>\n\n\n<!-- CASE STUDY -->\n<section class=\"sec alt\">\n  <div class=\"wrap\">\n    <div class=\"bwx-split\" style=\"margin-bottom:clamp(1.8rem,4vw,2.8rem)\"><div class=\"sec-head rv\" style=\"margin-bottom:0\">\n      <span class=\"eyebrow\">Case study<\/span>\n      <h2>How we help construction and installation companies<\/h2>\r\n      <p>We know the problems of construction and craft businesses not only from case files \u2014 Dr Artur Barczewski cooperates with the <a href=\"https:\/\/www.hwk-ff.de\/\" target=\"_blank\" rel=\"noopener\" style=\"color:var(--terra);font-weight:600\">Handwerkskammer Frankfurt (Oder) \u2013 Region Ostbrandenburg<\/a> and gives lectures for its member businesses.<\/p>\n    <\/div><figure class=\"bwx-ph bwx-side bwx-wide rv d1\"><img src=\"\/wp-content\/themes\/bwlaw-child-1\/assets\/img\/artur-fachliteratur-2026.webp\" srcset=\"\/wp-content\/themes\/bwlaw-child-1\/assets\/img\/artur-fachliteratur-2026-600.webp 600w, \/wp-content\/themes\/bwlaw-child-1\/assets\/img\/artur-fachliteratur-2026.webp 1000w\" sizes=\"auto, (max-width: 900px) 92vw, 380px\" width=\"1000\" height=\"667\" alt=\"Dr. Artur Barczewski with legal literature\" loading=\"lazy\" decoding=\"async\" style=\"object-position:55% 40%\"><\/figure><\/div>\n    <div class=\"case rv d1\">\n      <div class=\"case-body\">\n        <span class=\"tag\">Client: Construction company from Greater Poland<\/span>\n        <h3>Payment dispute over installation work with a German principal<\/h3>\n        <p>An installation company had performed its work, but the principal delayed payment. Our plan: analysing contract and documentation, a lawyer\u2019s demand letter with a deadline and tough negotiations with full readiness to litigate.<\/p>\n        <ul class=\"case-facts\">\n        <li>analysis of the contract and work documentation<\/li>\n        <li>lawyer\u2019s demand letter and negotiations with the principal<\/li>\n        <li>payment obtained before trial<\/li>\n        <\/ul>\n      <\/div>\n      <blockquote>\n        <div class=\"stars\" aria-hidden=\"true\">\u2605\u2605\u2605\u2605\u2605<\/div>\n        <p>\u201cA German general contractor owed us a six-figure amount. We got a clear plan, tough negotiations \u2014 and the money before trial.\u201d<\/p>\n        <cite><b>Sylwia Heller, MHR Montage GmbH<\/b><\/cite>\n        <span class=\"rev-src\" style=\"display:block;font-size:.78rem;color:var(--ink-soft);margin-top:.6rem\">Client testimonial<\/span>\n      <\/blockquote>\n    <\/div>\n  <\/div>\n<\/section>\n\n<!-- KONTAKT NA STRONIE -->\n<!-- Z BAZY WIEDZY -->\r\n<section class=\"sec\">\r\n  <div class=\"wrap\">\r\n    <div class=\"sec-head rv\">\r\n      <span class=\"eyebrow\">Knowledge base<\/span>\r\n      <h2>Guides: construction law<\/h2>\r\n    <\/div>\r\n    <div class=\"kb-grid rv d1\" style=\"margin-top:2rem\">\r\n      <article class=\"kb-card\" data-cat=\"budowlane\">\r\n        <span class=\"cat\">Construction<\/span>\r\n        <span class=\"serie\">VOB\/B series<\/span>\r\n        <h3>VOB\/B Section 2 \u2014 payment and variation claims from tender to final invoice<\/h3>\r\n        <p>Type of remuneration, Bausoll, quantities over 10 %, changed or additional work, notice, the variation offer and the new price under BGH and KG case law \u2014 part 1 of our VOB\/B clause-by-clause series.<\/p>\r\n        <div class=\"meta\"><span>\u2248 60 min read<\/span><a href=\"https:\/\/bwlaw.de\/en\/knowledge-base\/vob-b-section-2-pricing\/\">Read \u2192<\/a><\/div>\r\n      <\/article>\n      <article class=\"kb-card\" data-cat=\"budowlane\">\r\r\n        <span class=\"cat\">Construction<\/span>\r\r\n        <h3>Hourly-rate work \u2014 who proves that too many hours were billed<\/h3>\r\r\n        <p>The client says the work was pointless and the hours inflated? OLG Brandenburg: the contractor proves the hours, the client proves uneconomic performance. Signed timesheets, no acceptance, defects versus inefficiency.<\/p>\r\r\n        <div class=\"meta\"><span>\u2248 13 min read<\/span><a href=\"https:\/\/bwlaw.de\/en\/knowledge-base\/hourly-rate-construction-work-germany\/\">Read more \u2192<\/a><\/div>\r\r\n      <\/article>\n      <article class=\"kb-card\" data-cat=\"budowlane\">\r\r\n        <span class=\"cat\">Construction<\/span>\r\r\n        <h3>Substitute performance in Germany \u2014 cost advance under \u00a7 887 ZPO<\/h3>\r\r\n        <p>A court ordered defect rectification and nothing happened. KG Berlin: EUR 58,502 advance based on market offers and free choice of contractor for the creditor.<\/p>\r\r\n        <div class=\"meta\"><span>\u2248 8 min read<\/span><a href=\"https:\/\/bwlaw.de\/en\/knowledge-base\/substitute-performance-germany-887-zpo\/\">Read more \u2192<\/a><\/div>\r\r\n      <\/article>\n    <\/div>\r\n    <div class=\"chips rv\" style=\"margin-top:1.6rem\">\r\n      <!-- VOB-LANDING-LINK --><a href=\"https:\/\/bwlaw.de\/en\/vob-b-variation-claims-germany\/\">VOB\/B variation claims \u2192<\/a>\n      <a href=\"https:\/\/bwlaw.de\/en\/knowledge-base\/\">All articles in the knowledge base \u2192<\/a>\r\n    <\/div>\r\n  <\/div>\r\n<\/section>\r\n<section class=\"sec\" id=\"kontakt\">\n  <div class=\"wrap\">\n    <div class=\"sec-head rv\">\n      <span class=\"eyebrow\">Contact<\/span>\n      <h2>Before you sign<\/h2>\n      <p style=\"color:var(--ink-soft);max-width:62ch;margin-top:.8rem\">Send us the contract before signing or the documents of the unpaid work. We will tell you what can be won and at what cost.<\/p>\n    <\/div>\n    <style>\n    #kontakt .k-grid{display:grid;grid-template-columns:1.05fr .75fr;gap:1.8rem;margin-top:2.2rem;align-items:start}\n    @media(max-width:900px){#kontakt .k-grid{grid-template-columns:1fr}}\n    #kontakt .cform{background:#fff;border:1px solid var(--line);border-radius:20px;padding:1.8rem;box-shadow:0 18px 44px rgba(22,21,19,.07)}\n    #kontakt .cform label{display:block;font-size:.8rem;letter-spacing:.06em;color:var(--ink-soft);margin:0 0 .35rem}\n    #kontakt .cform input,#kontakt .cform textarea{width:100%;background:var(--ivory);border:1px solid var(--line);border-radius:12px;color:var(--ink);padding:.85rem 1rem;font-family:inherit;font-size:.95rem;margin-bottom:1.1rem}\n    #kontakt .cform input:focus,#kontakt .cform textarea:focus{outline:none;border-color:var(--terra)}\n    #kontakt .cform textarea{min-height:120px;resize:vertical}\n    #kontakt .optin{display:flex;gap:.95rem;align-items:flex-start;font-size:.8rem;color:var(--ink-soft);margin:.2rem 0 1.2rem;cursor:pointer;line-height:1.5}\n    #kontakt .optin input{margin-top:.2rem;margin-right:.1rem;width:17px;height:17px;accent-color:var(--terra);flex:0 0 auto;cursor:pointer}\n    #kontakt .optin a{color:var(--terra);font-weight:600}\n    #kontakt .k-side{background:#fff;border:1px solid var(--line);border-radius:20px;padding:1.7rem}\n    #kontakt .k-person{display:flex;gap:1rem;align-items:center;padding:.8rem 0;text-decoration:none;color:inherit}\n    #kontakt .k-person img{width:72px;height:72px;border-radius:16px;object-fit:cover;object-position:top;flex:0 0 auto}\n    #kontakt .k-person+.k-person{border-top:1px solid var(--line)}\n    #kontakt .k-person b{transition:color .25s}\n    #kontakt .k-person:hover b{color:var(--terra)}\n    #kontakt .k-side 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