All architects in Oyonnax
7 active architecture establishments in Oyonnax (Ain, 01), according to INSEE's Sirene register (data of 26 October 2026).
- Practices
- 7
- Per 10,000 residents
- 3.1
- Companies
- 5
- Founded since 2025
- 0
Oyonnax (population 22,480) has 7 architecture practices: 3.1 per 10,000 residents, against 2.7 on average in the department (Ain). 5 are companies and 2 are architects working as sole practitioners. The oldest company still active, Aum Pierre Minassian, was founded in 2003.
Planning rules in Oyonnax: see the local plan (PLU) on the Géoportail de l'urbanisme ↗
7 results
| Firm | Town | Phone | Founded | Type |
|---|---|---|---|---|
| Aum Pierre Minassian | Oyonnax 45 Boulevard Louis Dupuy, 01100 | 2003 | SARL | |
| Dominique Dromard | Oyonnax 4 Avenue du President Roosevelt, 01100 | 1991 | Sole trader | |
| Espace Architecte | Oyonnax Centre d'Affaires Valeurop 1 Avenue de l'Europe, 01100 | 2006 | SAS | |
| Geraldine Thomas (Spyckerelle) | Oyonnax 22 Rue Anatole France, 01100 | 2018 | Sole trader | |
| M&T Holding | Oyonnax 7 Chemin du Grand Moulin, 01100 | 2020 | SARL | |
| Studio Atrium Architecture | Oyonnax 94 Rue Voltaire, 01100 | 2014 | SARL | |
| Verdesens | Oyonnax 3 Rue Laplanche, 01100 | 2013 | SAS |
Architects near Oyonnax
All architects – Ain (01) →Architects in Oyonnax: common questions
How many architects are there in Oyonnax?
The Sirene register lists 7 active architecture practices in Oyonnax: 5 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 Oyonnax?
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 Oyonnax (height, position, appearance) are set out in the local plan (PLU).
How much does an architect cost in Oyonnax?
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.