All architects in Mantes-la-Jolie
6 active architecture establishments in Mantes-la-Jolie (Yvelines, 78), according to INSEE's Sirene register (data of 26 October 2026).
- Practices
- 6
- Per 10,000 residents
- 1.4
- Companies
- 3
- Founded since 2025
- 1
Mantes-la-Jolie (population 43,526) has 6 architecture practices: 1.4 per 10,000 residents, against 5.2 on average in the department (Yvelines). 3 are companies and 3 are architects working as sole practitioners. The oldest company still active, Alpha Conseil, was founded in 2000. One was founded in 2025 or later.
Planning rules in Mantes-la-Jolie: see the local plan (PLU) on the Géoportail de l'urbanisme ↗
6 results
| Firm | Town | Phone | Founded | Type |
|---|---|---|---|---|
| Alpha Conseil | Mantes-la-Jolie 7 Rue de la Famille Salomon, 78200 | 2000 | SARL | |
| Atelier 14 | Mantes-la-Jolie 15 Rue Marie et Robert Dubois, 78200 | 2026 | SAS | |
| Ebk Architecture | Mantes-la-Jolie 16 Place de l'Etape, 78200 | 2015 | SAS | |
| Feanor Feanor (Wulbrecht) | Mantes-la-Jolie Batiment B 7 Rue Denfert Rochereau, 78200 | 2024 | Sole trader | |
| Franck Olivier Wulbrecht | Mantes-la-Jolie Bat B 7 Rue Denfert Rochereau, 78200 | 2008 | Sole trader | |
| Patrick Turri | Mantes-la-Jolie 21 Rue Maurepas, 78200 | 1991 | Sole trader |
Architects near Mantes-la-Jolie
All architects – Yvelines (78) →Architects in Mantes-la-Jolie: common questions
How many architects are there in Mantes-la-Jolie?
The Sirene register lists 6 active architecture practices in Mantes-la-Jolie: 3 companies and 3 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 Mantes-la-Jolie?
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 Mantes-la-Jolie (height, position, appearance) are set out in the local plan (PLU).
How much does an architect cost in Mantes-la-Jolie?
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.