576 architects Extension

Extension Architect

A home is one of the most precious assets a person can own. Taking care of it is akin to taking care of oneself. A true living space, a home adapts to the needs of its owners and sometimes requires work to be carried out — including the addition of an extension.

Whether built to gain extra living space, attached to the existing home, or added as an upper storey, an extension serves more than one purpose.

To achieve a functional home extension that matches your vision, a specialist architect is your greatest ally.

Why choose a specialist architect for your home extension?

An architect is not always mandatory for a home extension project. However, calling on this building, construction, and renovation professional brings a number of significant advantages.

An extension in harmony with your home
Adding an extension to your home comes with many challenges. The first is creating a space that is in perfect harmony with your existing home and living environment. Whether in terms of exterior or interior cohesion, working with an architect allows you to choose the type of extension, the materials, and the construction style — ensuring the new space integrates seamlessly with your home.

A project tailored to your budget
A home extension is a project that requires careful planning from the outset. Between site preparation, materials, and labour, expanding your living space requires a considerable budget.

An architect can assist you as the project manager. They design the plans, oversee the works, and coordinate the various tradespeople — all while working within your budget. The best way to avoid unwelcome surprises.

Achieving a functional and practical space
A home extension is more than just extra floor space attached to a main building or added on top of it. Above all, it must be functional and comfortable. Whether it's a conservatory, a garage, or an additional room, the specialist architect carries out the work so that the extension fulfils its primary purpose.

Insulation, natural light, electrical wiring, built-in storage — your new room is immediately ready to use.

Architecte in Béziers 34500

The architecture agency Isabelle CALVET-CHARET, founded in 1997 in Béziers, benefits from more than 25 years of experience. A graduate of the Montpellier School of Architecture with Jury Honors, Mrs. CALVET-CHARET has built a multidisciplinary practice capable of managing a wide range of public and private projects.

17 property type

Single-Family Homes

Chalets / Wooden Houses

Smart Homes

11 type of work

Extension

New Build

Renovation

7 services

Design / Plans

Planning permission application

Construction Management

Architecte in Schiltigheim 67300

Julien CASTEL, architect graduated from ENSA Strasbourg and certified HMONP, supports both private individuals and professionals in their renovation, extension, and new construction projects. His agency develops sustainable and tailor-made architecture, integrating energy performance, bio-based materials, and comprehensive support throughout every phase of the project.

21 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

14 type of work

Extension

New Build

Renovation

6 services

Design / Plans

Planning permission application

Construction Management

Architecte in LAVAL 53000

Architect J.L Chereau (DPLG) is a graduate of the Nantes School of Architecture. Since 2007, his firm A3 Architecture has offered their services for projects in western France, from new builds to renovations, always with a strong commitment to respecting the environment.

 

9 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

9 type of work

Extension

New Build

Renovation

3 services

Design / Plans

Planning permission application

Construction Management

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Architecte in Cormontreuil 51350

Development of projects in many areas of construction: housing, cultural, sports, administrative, school and catering buildings.

From sketch phases to on-site execution phases until completion.

15 property type

Single-Family Homes

Chalets / Wooden Houses

Townhouses

13 type of work

Extension

New Build

Renovation

5 services

Design / Plans

Planning permission application

Consulting

Architecte in Saint-Sernin-du-Bois 71200

HMONP architect based in Saône-et-Loire, Paul DORMONT combines expertise in historic buildings with bioclimatic construction. As a certified drone pilot, he carries out surveys, inspections, and visual monitoring, supporting private clients, communities, and businesses—from consulting to full missions including site supervision.

19 property type

Single-Family Homes

Passive House / Eco-friendly

Townhouses

12 type of work

Extension

New Build

Renovation

6 services

Design / Plans

Planning permission application

Construction Management

Architecte in Bordeaux 33800

Atelier Megaron is an architecture studio developing sustainable, refined, and creative projects. Led by its two partners, it works on new builds and renovations (extensions, vertical additions) for houses, collective housing, tertiary buildings, and small facilities.

27 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

13 type of work

Extension

New Build

Renovation

7 services

Design / Plans

Planning permission application

Construction Management

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Architecte in Toulouse 31000

Since 2024, Massoulès Architectes has been supporting real estate project developers, property managers, SME leaders, and technical directors in their challenges of development, value creation, compliance, and environmental transition.

25 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

12 type of work

Extension

New Build

Renovation

7 services

Design / Plans

Planning permission application

Construction Management

5

Architecte in Lyon 69001

An architect based in Lyon with 10 years of experience, Lidia VERGNON supports both private clients and professionals in their renovation, construction, extension, and interior design projects. She also works on public-access buildings (ERP), such as micro-daycare centers, community spaces, and multipurpose halls.

Her approach is structured, clear, and focused on delivering concrete, achievable solutions tailored to your project, your budget, and your context

20 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

13 type of work

Extension

New Build

Renovation

5 services

Design / Plans

Planning permission application

Construction Management

Architecte in Albon D'Ardèche 07190

The studio Atelier d’Architecture Mauro Marson, located in the heart of Ardèche, works between city and countryside, offering original and responsible solutions for individual clients, businesses and communities.

23 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

17 type of work

Extension

New Build

Renovation

7 services

Design / Plans

Planning permission application

Construction Management

Architecte in Noisy-Le-Grand 93160

TSARA is an architectural firm based in the Île-de-France area. The company uses a design method based on BIM to promote efficient, cost-effective and environmentally-friendly designs. Responsive and attentive to the client, an entire team of professionals works together to bring your architectural project to life.

21 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

15 type of work

Extension

New Build

Renovation

4 services

Design / Plans

Planning permission application

Construction Management