All architects in Conflans-Sainte-Honorine
10 active architecture establishments in Conflans-Sainte-Honorine (Yvelines, 78), according to INSEE's Sirene register (data of 26 October 2026).
- Practices
- 10
- Per 10,000 residents
- 2.7
- Companies
- 6
- Founded since 2025
- 1
Conflans-Sainte-Honorine (population 36,958) has 10 architecture practices: 2.7 per 10,000 residents, against 5.2 on average in the department (Yvelines). 6 are companies and 4 are architects working as sole practitioners. The oldest company still active, Architecture Consulting, was founded in 1998. One was founded in 2025 or later.
10 results
| Firm | Town | Phone | Founded | Type |
|---|---|---|---|---|
| Architecture Consulting | Conflans-Sainte-Honorine 57 Rue Pasteur, 78700 | 1998 | SARL | |
| Benedicte Lemouton | Conflans-Sainte-Honorine 47 Rue de la Porte de Pontoise, 78700 | 2018 | Sole trader | |
| Co Fluences Architectures | Conflans-Sainte-Honorine 23 Rue des Cotes de Vannes, 78700 | 2000 | SARL | |
| Dominique Moyen | Conflans-Sainte-Honorine 1 Rue Desire Foucher, 78700 | 1993 | Sole trader | |
| Fabrice Lefebvre du Prey | Conflans-Sainte-Honorine 15 Residence les Ormes, 78700 | 1984 | Sole trader | |
| Inspir Architecture | Conflans-Sainte-Honorine Zac des Boutries 8 Rue des Cayennes, 78700 | 2012 | SARL | |
| Maffre Architectural Workshop (Maw) | Conflans-Sainte-Honorine 7 Place du Colonel Coutisson, 78700 | 2005 | SARL | |
| Sherazade Tidjani (Djelabakh) | Conflans-Sainte-Honorine 1 Allee Paul Cezanne, 78700 | 2011 | Sole trader | |
| Tatianas Design & Co | Conflans Sainte Honorine 37 B Rue de la Noue, 78700 | 2025 | SAS | |
| Valentino Architectes | Conflans-Sainte-Honorine 11 Rue aux Moines, 78700 | 2000 | SARL |
Architects near Conflans-Sainte-Honorine
All architects – Yvelines (78) →Architects in Conflans-Sainte-Honorine: common questions
How many architects are there in Conflans-Sainte-Honorine?
The Sirene register lists 10 active architecture practices in Conflans-Sainte-Honorine: 6 companies and 4 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 Conflans-Sainte-Honorine?
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 Conflans-Sainte-Honorine (height, position, appearance) are set out in the local plan (PLU).
How much does an architect cost in Conflans-Sainte-Honorine?
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.