Auray is a historic town in Morbihan and the gateway to the Quiberon peninsula. There is a strong demand for renovation of old houses, farmhouses and stone houses, as well as for house building in Auray and house extensions. The neighbouring towns of Carnac, Erdeven, La Trinité-sur-Mer and Quiberon share this dynamism. Our editors have selected the 10 best builders in Auray in 2026, with a special mention for Axxens Créhabitat, established in the town since 2002.
When you call on a project manager in Auray, you can be sure that you're working with a professional who is familiar with the area's architectural and regulatory constraints: the PLU of coastal municipalities, the regulations of the Gulf of Morbihan Regional Nature Park, and the requirements of the UDAP for projects in protected heritage areas. In this area, mastery of old buildings is a key skill.
For a house-building project in Auray, a house extension in Auray or the renovation of a Breton farmhouse, the criteria to be favoured are: local experience, knowledge of traditional materials (granite, slate, lime plaster), the ability to manage energy grants (MaPrimeRénov’, éco-PTZ) and the quality of the network of local craftsmen.
Our 2026 selection covers the Auray region: Auray, Pluneret, Brec'h, Sainte-Anne-d'Auray, prime contractor Carnac, prime contractor La Trinité-sur-Mer, prime contractor Quiberon. In the lead: Axxens Créhabitat.
📚 Also read
Are you working on a project in Morbihan? These guides will help you find the right professional.
| Rank | Name | Highlights |
|---|---|---|
| 1 | Axxens Créhabitat | 20+ years, Auray agency, energy audit, local craftsmen, RE 2020, 3D plans |
| 2 | Hexagone Architecture | Architects and project managers since 2014, eco-construction, Gulf of Morbihan |
| 3 | Passiveo | BBC & RE2020 passive house, energy consultancy, Crac'h |
| 4 | Project Act | Renovation, extension, stone house, forensics, Auray |
| 5 | Interaction MOE | Independent contractor, over 10 years, local authorities & private individuals, Ste-Anne-d'Auray |
| 6 | Design and traditional houses | Project management since 2001, new build, Auray branch, RE 2020 |
| 7 | HaAS Edification | Custom-built detached houses, new build, Kerzo/Auray |
| 8 | Maître-Oeuvre-Morbihan.fr | Construction, extension, longères, renovation, Morbihan & Bretagne |
| 9 | Duic Floch Architects | Architectural practice & project management, various projects, Gulf of Morbihan |
| 10 | SARL MT Crea | Local project management, construction & renovation, Auray area |
Founded in Auray in 2002, Axxens Créhabitat is the historic project manager for the Auray region. The Auray office was the founding office of the company, before the opening of offices in Vannes and Lanester. For more than twenty years, the firm has worked with private individuals from the Quiberon peninsula to the Gulf of Morbihan: Auray, Pluneret, Brec'h, Carnac, Erdeven, La Trinité-sur-Mer, Quiberon, Belz, Étel and Sainte-Anne-d'Auray.
Knowledge of Breton buildings is at the heart of the agency's expertise. Renovating a farmhouse, restoring a farmhouse, renovating a granite house - Axxens masters traditional materials and heritage regulations. As a certified energy auditor, the firm checks that each project is eligible for MaPrimeRénov’ support and other government schemes.
For house-building in Auray, Axxens provides a free feasibility study and 3D visuals from the earliest stages of the project. Each house is custom-built to comply with RE 2020 standards, with qualified local craftsmen selected for their expertise. Owners sign directly with the craftsmen - Axxens takes no margin on the services provided.
For a house extension project in Auray, the firm coordinates the administrative procedures (planning permission, prior declaration, contact with UDAP if necessary), draws up the plans and monitors the site through to handover. Our mastery of the PLU of coastal communes and the regulations of the PNR du golfe du Morbihan is a decisive asset in this area.
For your project in the Auray region, a free study is available on request. Find all the information and projects on the page project manager in Auray.
What the editors liked: Axxens has been based in Auray since 2002, and its expertise in old buildings and knowledge of the constraints of the Gulf of Morbihan Regional Park make it the ideal partner for any project in the Auray region.
📍 Axxens Créhabitat, 32 bis rue de la Libération, 56400 Auray, Tel: 02 97 29 47 72
Created in 2014 by Julien Serpin, Hexagone Architecture is an architectural practice that also works as a project manager throughout the Gulf of Morbihan. With offices in Questembert, Surzur and Sainte-Anne-d'Auray, it also works in Auray, Arradon, Baden, Sarzeau, La Trinité-sur-Mer, Damgan and throughout Morbihan.
Our dual architectural and technical expertise enables us to approach projects with a vision that is both aesthetic and functional. The firm favours the use of bio-sourced materials and timber construction, and is fully aware of the constraints imposed by the PNR du Golfe.
What the editors liked: Hexagone's dual skills as architect and project manager and its unanimously positive customer reviews make it an unrivalled reference in the Gulf of Morbihan.
📍 Hexagone Architecture, Questembert / Surzur / Sainte-Anne-d'Auray
Located in Crac'h, between Auray and La Trinité-sur-Mer, Passiveo specialises in energy efficiency and the construction of passive and BBC effinergie houses. The team works throughout the Morbihan region - Auray, Vannes, Lorient and Pontivy - and carries out an in-depth thermal analysis for each project.
Passiveo supports its customers from the design stage through to site supervision, with expertise in high-performance construction systems (BBC effinergie, RE 2020, passive house).
What the editors liked: Its specialisation in energy-efficient construction and its location in the heart of the Auray region make it the local benchmark for BBC and passive house projects.
📍 Passiveo, 4 rue Henri Le Doré, ZA du Moustoir, 56950 Crac'h
Based on rue du Père-Éternel in Auray, Project Act is a multi-disciplinary project management company specialising in the design and construction of homes, including extensions, complete renovations and stone houses. What sets it apart is its recognised legal expertise, which enables it to intervene in construction disputes and problems of faulty workmanship.
Customer reviews highlight the care taken to listen to customers' expectations, the thoroughness of the preliminary studies and the fact that the contractual deadlines - six months as planned at the time of signing - were met.
What the editors liked: Its dual role as project manager and legal expert makes it a rare partner, invaluable for complex projects or litigation.
📍 Acte Projet, 9 rue du Père-Éternel, 56400 Auray
Based in Sainte-Anne-d'Auray, Mathieu Duclos (« Interaction MOE ») is an independent project manager who has been working for private individuals, professionals and local authorities throughout Morbihan for over 10 years.
Weekly site monitoring with written reports, validation of each invoice before payment, a single point of contact between the client and the tradesmen - a rigorous method for all types of project.
What the editors liked: The profile of a committed freelancer, the rigour of the follow-up and the versatility of the public/private sector make Interaction MOE a credible alternative for project owners in the Pays d'Auray.
📍 Interaction MOE, 56400 Sainte-Anne-d'Auray (work throughout Morbihan)
With a branch in Auray as well as one in Séné, Design and traditional houses has had a dedicated local presence in the Auray region since 2001. The office provides tailor-made support for new-build projects, with rigorous monitoring, regular reporting and on-time delivery.
RE 2020 standards, qualified craftsmen and a personalised approach - a complete package for new single-family home projects in the Auray-Brec'h-Pluneret area.
What the editors liked: The presence of a dedicated branch in Auray ensures a local presence that is much appreciated when it comes to monitoring worksites in the Auray region.
📍 Maisons Design et Traditions, 27 avenue de l'Océan, 56400 Auray
Located in the Kerzo district of Auray, HaAS Edification is a company specialising in the design and construction of custom-built detached houses. The team supports its customers from the first sketch to the handover of the keys, with a personalised approach tailored to each project and a detailed knowledge of the local craft industry.
Preferred area: Auray, Brec'h, Pluneret, Bono and surrounding towns.
What the editors liked: Our proximity to the land and our specialisation in custom-built single-family homes make HaAS Edification an ideal partner for residential projects in the heart of the Auray region.
📍 HaAS Edification, Kerzo, 56400 Auray
The firm Maître-Oeuvre-Morbihan.fr supports private individuals with their building, extension and renovation projects throughout Morbihan and Brittany. The team takes care of finding a plot of land, applying for planning permission and monitoring the construction site.
The range of services covers everything from contemporary houses to renovations of stone farmhouses, wooden extensions and raised ceilings - particularly relevant in the Auray region, where old buildings are ubiquitous.
What the editors liked: The company's expertise in the different types of construction in Brittany and its ability to manage projects from A to Z make it a flexible partner for a wide range of projects.
📍 Maître-Oeuvre-Morbihan.fr, Morbihan (56), operations throughout Brittany
Architects working in the Auray and Gulf of Morbihan area, Duic Floch Architects also offers project management services for residential, professional and public-sector projects. Our architectural creativity and rigorous execution make us the partner of choice for demanding projects.
The agency covers the whole of the Auray area and the communes of the Gulf of Morbihan.
What the editors liked: Duic Floch's dual architectural and technical sensibilities make it an ideal choice for projects that require it to blend in with the Gulf's heritage environment.
📍 Duic Floch Architects, Auray sector, Gulf of Morbihan
La SARL MT Crea is a project management company based near Auray, working with private individuals on their construction and renovation projects in the Morbihan region. The team focuses on responsiveness and availability, guiding clients through every stage of the project.
A local profile, suitable for smaller-scale projects or private individuals who want accessible, human support, without the structure of a large design office.
What the editors liked: MT Crea's responsiveness and proximity make it an accessible address for everyday residential projects in the Auray region.
📍 SARL MT Crea, Auray area, Morbihan
French French
English
