Lawyer profile
Martin Diederichs
Certified specialist in construction and architects' law (Fachanwalt für Bau- und Architektenrecht), Certified specialist in public procurement law (Fachanwalt für Vergaberecht), Heidland Werres Diederichs Rechtsanwälte Part GmbB, Cologne
- Checked in the official register of the German Federal Bar (BRAK) on 12 October 2026
- Overall rating 4.2 of 5
, from 8 reviews of the firm
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- Languages
- English, French
- Focus areas
- Company law (Gesellschaftsrecht), Public procurement law (Vergaberecht), Private construction law (Baurecht (privates)), Construction law (Baurecht), Architects' law (Architektenrecht)
Sources: Deutsche Anwaltauskunft des Deutschen Anwaltvereins, retrieved on 12 October 2026. Focus areas and opening hours are the lawyer's or firm's own words. Focus areas from the directories' fixed lists have an English label with the German term in brackets; all others stay in German.
Location of the firm
Reviews of the firm
4.2 of 5 Overall rating from 8 reviews on 1 platform. How we calculate the overall rating
Google
These reviews apply to the firm, not to individual lawyers.
Details from the official lawyer register
- Name
- Martin Diederichs
- Professional title
- Lawyer (Rechtsanwalt)
- Specialist titles
- Certified specialist in construction and architects' law (Fachanwalt für Bau- und Architektenrecht), Certified specialist in public procurement law (Fachanwalt für Vergaberecht)
- Regional bar association
- Köln
- Admitted since
- 18 December 1991
- Firm address
- Theodor-Heuss-Ring 38-40, 50668 Köln
- Phone
- 0221-9514460
- Fax
- 0221-95144699
- kanzlei@hwd.de
- Website
- www.rae-heidland.de
- Identifier in the special electronic lawyer mailbox (beA)
- DE.BRAK.05553e8b-35a1-4664-8fdb-e7d658050522.7136
Source: Official lawyer register of the German Federal Bar under section 31 of the Federal Lawyers' Act (BRAO). The register is kept in German. We show names and addresses as the register gives them and add an English description to German professional titles.
Law firm: Heidland Werres Diederichs Rechtsanwälte Part GmbB
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