All architects in Orsay
15 active architecture establishments in Orsay (Essonne, 91), according to INSEE's Sirene register (data of 26 October 2026).
- Practices
- 15
- Per 10,000 residents
- 9.1
- Companies
- 9
- Founded since 2025
- 1
Orsay (population 16,498) has 15 architecture practices: 9.1 per 10,000 residents, against 2.7 on average in the department (Essonne). 9 are companies and 6 are architects working as sole practitioners. The oldest company still active, Archiconcept 1984, was founded in 1984. One was founded in 2025 or later.
Planning rules in Orsay: see the local plan (PLU) on the Géoportail de l'urbanisme ↗
15 results
| Firm | Town | Phone | Founded | Type |
|---|---|---|---|---|
| Ali Abou Zeid (A.Z. Delivery & Transport) | Orsay 4 Chemin du Guichet, 91400 | 2025 | Sole trader | |
| Archi'Made Studio SARL d'Architecture et d'Urbanisme | Orsay 5 B Rte de Montlhery, 91400 | 2017 | SARL | |
| Archiconcept 1984 | Orsay 21 Rue Jean Rostand, 91400 | 1984 | SAS | |
| Cobbs Consulting et Architecture | Orsay 22 Rue Pierre et Marie Curie, 91400 | 2016 | SARL | |
| Dalido Architectes | Orsay 5 B Rte de Montlhery, 91400 | 2003 | SAS | |
| Eco-Loci | Orsay Batiment 6 34 Avenue Saint-Laurent, 91400 | 2022 | SARL | |
| Fabien Duchene | Orsay 135 Rue Aristide Briand, 91400 | 2006 | Sole trader | |
| Francois Xavier Evellin | Orsay 5 B Rte de Montlhery, 91400 | 1998 | SAS | |
| Gilles Dalido | Orsay 5 B Rte de Montlhery, 91400 | 1996 | Sole trader | |
| Jean Planat | Orsay 5 B Rte de Montlhery, 91400 | 1987 | Sole trader | |
| Noelle Meniertrading as Sans Objet | Orsay 19 B Rue Marc Godard, 91400 | 1985 | Sole trader | |
| Pierre-Yves Tourneix | Orsay 69 Rue de Paris, 91400 | 2000 | Sole trader | |
| Societe d'Architecture Reda Chraibi | Orsay 5 B Rte de Montlhery, 91400 | 2007 | SARL | |
| Societe Pascal Gerard | Orsay 27 B Rte de Montlhery, 91400 | 1991 | SARL | |
| SP-Loci | Orsay 21 Rue Jean Rostand, 91400 | 2020 | SAS |
Architects near Orsay
All architects – Essonne (91) →Architects in Orsay: common questions
How many architects are there in Orsay?
The Sirene register lists 15 active architecture practices in Orsay: 9 companies and 6 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 Orsay?
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 Orsay (height, position, appearance) are set out in the local plan (PLU).
How much does an architect cost in Orsay?
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.