All architects in Châteaubourg
6 active architecture establishments in Châteaubourg (Ille-et-Vilaine, 35), according to INSEE's Sirene register (data of 26 October 2026).
- Practices
- 6
- Per 10,000 residents
- 8.0
- Companies
- 4
- Founded since 2025
- 0
Châteaubourg (population 7,533) has 6 architecture practices: 8.0 per 10,000 residents, against 6.3 on average in the department (Ille-et-Vilaine). 4 are companies and 2 are architects working as sole practitioners. One employs 10 people or more. The oldest company still active, Faber, was founded in 2002.
Planning rules in Châteaubourg: see the local plan (PLU) on the Géoportail de l'urbanisme ↗
6 results
| Firm | Town | Phone | Founded | Type |
|---|---|---|---|---|
| Carlo Jean-Francois Architecte DPLG | Chateaubourg 2 Rue de la Goulgatiere, 35220 | 2009 | SARL | |
| Faber | Chateaubourg 35 Boulevard de la Liberte, 35220 | 2002 | SAS | |
| Ker Architecture | Chateaubourg 25 Rue du Grand Domaine, 35220 | 2020 | SAS | |
| Romain Couliou | Chateaubourg 8 Impasse Bel-Air, 35220 | 2010 | Sole trader | |
| Sebastien Lanouiller | Chateaubourg 3 Rue du Marechal Leclerc, 35220 | 2018 | Sole trader | |
| Synapse Architecture | Chateaubourg 35 Boulevard de la Liberte, 35220 | 2015 | SARL |
Architects near Châteaubourg
All architects – Ille-et-Vilaine (35) →Architects in Châteaubourg: common questions
How many architects are there in Châteaubourg?
The Sirene register lists 6 active architecture practices in Châteaubourg: 4 companies and 2 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 Châteaubourg?
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 Châteaubourg (height, position, appearance) are set out in the local plan (PLU).
How much does an architect cost in Châteaubourg?
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.