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Date:

11.09.2026

Reading time:

18 minutes

Author:

Daniil Kadyrov

Managing Partner

Violation of Deadlines and Phasing of Design Works

Contract Law

Date:

11.09.2026

Reading time:

18 minutes

FAQ

What should be done in case of a negative expert opinion on design works?

The contractor revises the documentation within the agreed timeframe without additional payment (unless otherwise provided by the contract). Deadlines are adjusted by an addendum if there are objective reasons.

What documents does the client need to prove the contractor’s fault in delay of design works?

The contract and the schedule, confirmation of absence of results by the deadline (certificate, internal memorandum), correspondence, certificates of transfer of initial data, and, if necessary, an expert opinion.

If the client accepted delayed design works, does the right to sanctions remain?

Yes. Acceptance of the result does not deprive the client of the right to a penalty, but the court may reduce its amount in the absence of material consequences of the delay.

Is it possible to recover damages in excess of the contractual penalty or late fees under Federal Law No. 44-Federal Law?

Yes, if the amount and causal link with the delay are proven. Typical damages include expenses for another contractor, downtime of related contractors, and penalties under an investment contract.

How does a contractual penalty under the Civil Code differ from late fees under Federal Law No. 44-Federal Law?

In private contracts, the amount and formula of the penalty are determined by agreement of the parties. In state contracts, late fees are calculated using the mandatory formula of Federal Law No. 44-Federal Law (one three-hundredth of the key rate calculated on the value of the unperformed part for each day of delay).

What grounds are considered valid for extending deadlines for design works?

Absence or delay of initial data on the part of the client, change in the scope of works, revision based on expert review comments, force majeure. The grounds must be recorded in writing.

Is it possible to extend the design deadline without an addendum?

No. An extension is valid only if an addendum has been signed. Oral agreements and “tacit consent” have no legal force.
All questions and answers

Key Terms

D

Design Documentation

Urban Planning Law Russia
A set of text and graphic materials defining architectural, structural, technological, and engineering solutions for a capital construction project.

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