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Construction law in Germany

Building in Germany? We pursue your payment claims.

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 — across Germany, in English.

BGB and VOB/B contracts Sec. 650f BGB — payment security Variation claims (Nachträge)
Dr. Artur Barczewski, construction law in Germany, BWLAW in Frankfurt (Oder)
What companies bring to us

The problems we solve most often

Your route to payment

  1. Contract reviewbefore signing: BGB or VOB/B
  2. Documentationobstructions, concerns and variations in writing
  3. Acceptance (Abnahme)payment falls due (sec. 641 (1) BGB)
  4. Final invoicemeet the formal requirements
  5. Enforcing paymentdemand letter, securities, claim
01Unpaid work

Demand letters, securities, payment claims — consistently, until the money is in your account.

02Deductions for alleged defects

Defence against inflated defect lists and substitute performance costs.

03Contractual penalties for delay

Reviewing the validity of penalty clauses and documenting obstructions caused by the principal.

04Refused acceptance

Enforcing acceptance (Abnahme) or its legal effects when the principal delays.

05Variations (Nachträge)

Valuing and enforcing payment for scope changes — the party that documents wins.

06Retained securities

Recovering security retentions after the deadlines have passed.

Building or servicing solar farms in Germany?We review and negotiate EPC and O&M contracts and help with plant acceptance and payment for installation work.Solar farm contracts →
Before you sign

The contract before signing: BGB or VOB/B?

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 — but it imposes duties foreign companies often do not know:

Obstruction notice (Behinderungsanzeige)

Delays caused by the principal must be notified in writing immediately — otherwise they are hard to rely on later.

Reservation notice (Bedenkenanmeldung)

A contractor who fails to raise concerns in writing may be liable for others’ mistakes.

Warranty periods

For buildings generally 4 years under VOB/B versus 5 years under BGB — the difference matters for defect claims.

Interim and final invoicing

The formal requirements for the final invoice (Schlussrechnung) can block additional payments.

Warranty for buildings

BGB5 yearssec. 634a (1) no. 2 BGB
VOB/B4 yearsas a rule, sec. 13 (4) VOB/B
Dr. Artur Barczewski and Dr. Karolina Wróblewska reviewing documents
Contract review before signingDr. Artur Barczewski and Dr. Karolina Wróblewska
The cheapest moment for a lawyer is before you sign.A contract review costs a fraction of a dispute over retained payment.Send the contract for review →
Your leverage

Securing payment for construction work

Sec. 650f BGB

Bauhandwerkersicherung — the tool most subcontractors do not know

The contractor may demand security for payment from the principal (e.g. a bank guarantee) — 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.

How sec. 650f BGB works

  1. Demand securityfor the unpaid remuneration plus 10 % for ancillary claims, e.g. a bank guarantee (sec. 650f (1) and (2) BGB)
  2. Set a reasonable deadlineThe principal does not provide the security.
  3. Suspend work or terminateOn termination the agreed remuneration remains, less saved expenses, presumed: 5 % of the remuneration for the unperformed part (sec. 650f (5) BGB).

Cannot be excluded by contract (sec. 650f (7) BGB). Exceptions: consumers under a consumer construction or property developer contract and public bodies that cannot become insolvent (sec. 650f (6) BGB).

Security mortgage (sec. 650e BGB)

A security mortgage for earned remuneration can be registered on the principal’s property.

Acceptance (Abnahme)

Upon acceptance payment falls due and the burden of proof for defects shifts to the principal. We enforce formal or implied acceptance.

Interest and recovery costs

In B2B matters we consistently add statutory default interest and recovery costs to the claim.

9 pointsabove the base rate: default interest between businesses (sec. 288 (2) BGB)
€40lump sum when a business pays late, also for interim invoices (sec. 288 (5) BGB)

For design offices: HOAI

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 — and advise principals who want an HOAI invoice verified.

Dr. Artur Barczewski at his desk
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Principal not paying — 5-step checklist (PDF)

From securing site documentation to the sec. 650f BGB security demand — the sequence that most often unlocks payment.

FAQ

Frequently asked questions from construction practice

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 — if needed — a lawsuit. Often this sequence alone unlocks payment.

Not “simply” — 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.

No. Case law limits penalties in standard terms — 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 — which is why the obstruction notice matters so much.

Payment claims generally become time-barred three years from the end of the year in which they fell due. These are general rules — 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.

Dr. Artur Barczewski and Dr. Karolina Wróblewska
Case study

How we help construction and installation companies

We know the problems of construction and craft businesses not only from case files — Dr Artur Barczewski cooperates with the Handwerkskammer Frankfurt (Oder) – Region Ostbrandenburg and gives lectures for its member businesses.

Dr. Artur Barczewski with legal literature
Client: Construction company from Greater Poland

Payment dispute over installation work with a German principal

An installation company had performed its work, but the principal delayed payment. Our plan: analysing contract and documentation, a lawyer’s demand letter with a deadline and tough negotiations with full readiness to litigate.

  • analysis of the contract and work documentation
  • lawyer’s demand letter and negotiations with the principal
  • payment obtained before trial

“A German general contractor owed us a six-figure amount. We got a clear plan, tough negotiations — and the money before trial.”

Sylwia Heller, MHR Montage GmbH Client testimonial
Knowledge base

Guides: construction law

Construction VOB/B series

VOB/B Section 2 — payment and variation claims from tender to final invoice

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 — part 1 of our VOB/B clause-by-clause series.

≈ 60 min readRead →
Construction

Hourly-rate work — who proves that too many hours were billed

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.

≈ 13 min readRead more →
Construction

Substitute performance in Germany — cost advance under § 887 ZPO

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.

≈ 8 min readRead more →
Contact

Before you sign

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.

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