All architects in Castelnau-le-Lez
26 active architecture establishments in Castelnau-le-Lez (Hérault, 34), according to INSEE's Sirene register (data of 26 October 2026).
- Practices
- 26
- Per 10,000 residents
- 10.0
- Companies
- 14
- Founded since 2025
- 4
Castelnau-le-Lez (population 26,058) has 26 architecture practices: 10.0 per 10,000 residents, against 7.5 on average in the department (Hérault). 14 are companies and 12 are architects working as sole practitioners. The oldest company still active, Chamard Fraudet & Associes, was founded in 1987. 4 were founded in 2025 or later.
Planning rules in Castelnau-le-Lez: see the local plan (PLU) on the Géoportail de l'urbanisme ↗
26 results
| Firm | Town | Phone | Founded | Type |
|---|---|---|---|---|
| Agence Architectonica | Castelnau-le-Lez 36 Avenue de la Galine, 34170 | 2005 | SARL | |
| Alm Architectures | Castelnau-le-Lez 41 Avenue de la Moutte, 34170 | 2023 | SARL | |
| Anouck Ducros | Castelnau-le-Lez 36 Avenue de la Galine, 34170 | 2017 | Sole trader | |
| Atelier d'Architecture Roch Marques | Castelnau-le-Lez 3 Avenue Aristide Briand, 34170 | 2012 | SAS | |
| Atelier Marilyn Gobin Architecte du Patrimoine (Amgap) | Castelnau-le-Lez 13 Impasse Charles Amans, 34170 | 2021 | SARL | |
| Bouvagnet Architectes | Castelnau-le-Lez 3 Avenue du Jeu de Mail, 34170 | 2008 | SARL | |
| Cabinet Richard Architecture | Castelnau-le-Lez Parc Jean Mermoz 20 Rue Didier Daurat, 34170 | 2004 | SARL | |
| Chamard Fraudet & Associes | Castelnau-le-Lez 4 Rue Jules Ferry, 34170 | 1987 | SELARL | |
| Create | Castelnau-le-Lez 2 Avenue des Centurions, 34170 | 2015 | SARL | |
| Damien Toty | Castelnau-le-Lez 3 Impasse Pierre Corneille, 34170 | 2012 | Sole trader | |
| Equilone Architecture | Castelnau-le-Lez APTA12 1139 Avenue de l'Europe, 34170 | 2018 | SAS | |
| Estelle Changeant | Castelnau-le-Lez 19 Rue Pablo Picasso, 34170 | 2021 | Sole trader | |
| Ghislain Therytrading as Ghislain Thery Architecte | Castelnau le Lez 5 B Imp la Bruyere, 34170 | 2006 | Sole trader | |
| Henri Rigollet | Castelnau-le-Lez 7 Impasse des Violettes, 34170 | 2009 | Sole trader | |
| Herve Piquard | Castelnau-le-Lez 9 Rue de l'Atrium, 34170 | 2000 | Sole trader | |
| Jeanne Maurel | Castelnau-le-Lez 2010 Avenue de l'Europe, 34170 | 2026 | Sole trader | |
| Lewisa Architecture | Castelnau-le-Lez Residence le Village 14 Avenue Jean Jaures, 34170 | 2021 | SAS | |
| Mediterraneo Architecture | Castelnau-le-Lez 8 Rue du Marechal Marmont, 34170 | 2026 | SARL | |
| Mnemosyne Architectures | Castelnau-le-Lez 199 Rue Helene Boucher, 34170 | 2025 | SARL | |
| Nathalie Portal | Castelnau-le-Lez Immeuble le Cube 90 Rue Didier Daurat, 34170 | 1998 | Sole trader | |
| Raphael Sinet (Novurba) | Castelnau-le-Lez 21 Avenue de la Galine, 34170 | 2023 | Sole trader | |
| Roch Marques | Castelnau-le-Lez 50 Avenue Jean Jaures, 34170 | 2003 | Sole trader | |
| Sabine Fanneau de la Horie | Castelnau-le-Lez Res le Verger Bat B 20 B Avenue Aristide Briand, 34170 | 2016 | Sole trader | |
| Surho | Castelnau-le-Lez 1720 Avenue de l'Europe, 34170 | 2023 | SARL | |
| Synergreen Solutions | Castelnau-le-Lez 199 Rue Helene Boucher, 34170 | 2025 | SAS | |
| Valentin Sambardy (Valentin Sambardy Architecte) | Castelnau-le-Lez 4 Avenue Jean Jaures, 34170 | 2015 | Sole trader |
Architects near Castelnau-le-Lez
All architects – Hérault (34) →Architects in Castelnau-le-Lez: common questions
How many architects are there in Castelnau-le-Lez?
The Sirene register lists 26 active architecture practices in Castelnau-le-Lez: 14 companies and 12 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 Castelnau-le-Lez?
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 Castelnau-le-Lez (height, position, appearance) are set out in the local plan (PLU).
How much does an architect cost in Castelnau-le-Lez?
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.