All architects in Auxerre
10 active architecture establishments in Auxerre (Yonne, 89), according to INSEE's Sirene register (data of 26 October 2026).
- Practices
- 10
- Per 10,000 residents
- 2.8
- Companies
- 5
- Founded since 2025
- 2
Auxerre (population 35,097) has 10 architecture practices: 2.8 per 10,000 residents, against 2.5 on average in the department (Yonne). 5 are companies and 5 are architects working as sole practitioners. The oldest company still active, MC2, Architectes, was founded in 2002. 2 were founded in 2025 or later.
Planning rules in Auxerre: see the local plan (PLU) on the Géoportail de l'urbanisme ↗
10 results
| Firm | Town | Phone | Founded | Type |
|---|---|---|---|---|
| Atria Architectes | Auxerre 7 B Rue de la Plaine des Isles, 89000 | 2003 | SARL | |
| Branchu Behr Architecte | Auxerre 9 Avenue Jean Moulin, 89000 | 2025 | SARL | |
| Branchu Behr Architecte | Auxerre 7 T Rue du Docteur Labosse, 89000 | 2025 | SARL | |
| La Petite Marchande | Auxerre 68 Rue du Temple, 89000 | 2019 | SAS | |
| MC2, Architectes | Auxerre 3 Avenue de la Puisaye, 89000 | 2002 | SARL | |
| Michael Bizouard | Auxerre 4 Allee Gounod, 89000 | 2013 | Sole trader | |
| Patrice Migairoutrading as Architecte d'Interieur Cfai | Auxerre 2 Rue du Lavoir, 89000 | 1984 | Sole trader | |
| Patrick Branchu | Auxerre 9 Rue du Docteur Labosse, 89000 | 1985 | Sole trader | |
| Pierre d'Orlye | Auxerre 5 Rue Marcellin Berthelot, 89000 | 1979 | Sole trader | |
| Vincent Canet | Auxerre 71 T Avenue Denfert Rochereau, 89000 | 2005 | Sole trader |
Architects near Auxerre
All architects – Yonne (89) →Architects in Auxerre: common questions
How many architects are there in Auxerre?
The Sirene register lists 10 active architecture practices in Auxerre: 5 companies and 5 architects working as sole practitioners. All of them are listed on this page, with their address and, where published, their phone number.
Is an architect compulsory to build in Auxerre?
As everywhere in France, an individual building for themselves must use an architect once the floor area exceeds 150 m², counting the total after works for an extension. A company, including an SCI, always needs one for a building permit. The local rules for Auxerre (height, position, appearance) are set out in the local plan (PLU).
How much does an architect cost in Auxerre?
Fees are free and set in the contract. For a full mission, from design to site supervision, pricing guides usually quote 8–12% of the cost of the works excluding VAT for a new house and 10–15% for a renovation or extension. A mission limited to the building permit application is usually a fixed fee of about €1,500–4,000 excluding VAT.
Where can I get free advice before choosing an architect?
In most departments, the CAUE (council for architecture, planning and the environment) sees individuals for free, by appointment, to help them prepare their project. The map of CAUEs is on fncaue.com.