Public works procurement combines the applicable VOB/A rules with the GWB framework, national implementation and the construction contract. A coherent specification, realistic quantities and a defensible division into lots are central to fair competition.
Determine the applicable section
The contract value, authority and type of procurement determine the legal framework. Above the relevant EU threshold, the EU procurement rules for works must be considered. Below it, the version and provisions actually introduced for the authority matter. Funding conditions may add further obligations. A change to federal rules does not automatically amend every state or municipal procurement regime.
Lots, quantities and alternatives
Assess separate trade and quantity lots under the applicable rules, including section 97a GWB where relevant. Record any lawful reason for combining them. The bill of quantities and contractual terms should provide a common basis for pricing. Alternative tenders require clear admission rules and minimum conditions; an attractive alternative is not automatically eligible for evaluation.
Examine bids and prices
Check formal compliance, evidence, exclusions and the pricing structure under the governing rules. Clarification and requests for documents have limits and must preserve equality. An unusually low price may require investigation. Avoid treating every missing item alike or allowing a bidder to reshape its competitive offer after closing.
Connect award with construction management
The contract should identify scope, interfaces, acceptance and change procedures. Additional works must be assessed under both construction contract law and procurement modification rules. Maintain a reliable record from the original estimate to the final award and subsequent instructions, particularly where a funding body may later inspect the file.
Four practical examples
The following scenarios are illustrative, not reports of actual client matters. The outcome depends on the documents and circumstances of the individual procurement.
Example 1: Bundled trades
An authority combines structural, electrical and heating work. Examine the legal reasons for bundling and realistic alternatives. Administrative convenience alone does not settle the lot principle.
Example 2: Inconsistent quantities
A contractor identifies conflicting quantities in the documents. Seek clarification before bidding. Silent assumptions may make the bid incomparable and create later payment disputes.
Example 3: Alternative method
A bidder proposes another construction method. Check whether alternatives are permitted and meet the stated minimum requirements. A lower price does not make an otherwise inadmissible alternative evaluable.
Example 4: Grant-funded project
A works contract is below the EU threshold but publicly funded. Examine the grant conditions alongside procurement law. A procedure may be generally permissible yet breach binding funding obligations.
Related topics
Procurement of architectural and engineering services · Grant funding and procurement obligations · Contract modifications and additional public works
Discuss your procurement
For a review, please identify the authority, contract or lot, current procedural stage and any deadline. We can then clarify the scope of the requested work. Contact our team. An enquiry does not itself create a retainer or preserve a legal deadline.
Legal sources
Official legislation and materials, some in German: § 2 VgV – Bauaufträge · § 97a GWB – Losgrundsatz · § 132 GWB – Vertragsänderungen
Updated 13 November 2026. Illustrative guidance on German and EU procurement law.