607 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.

1 achievement

Atelier Artefact is an architecture practice based in Valence, in the Drôme region. It works on renovation, transformation, extension and new-build projects, with particular attention to the character of each place, how spaces are used and the way they are built.

Each project is developed with a focus on simplicity, precision and spatial quality.

26 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Extension

New Build

7 services

Design / Plans

Planning permission application

1 achievement

Architect page

In order to ensure effective coordination and the success of your project, the architect and his firm are dedicated to effective exchange and in-depth dialogue with their clients. In addition, ARCHI-PAT enlists the expertise of a full network of partners including specialists in urban planning, architecture, and operational and pre-operational research. 

27 property type

Single-Family Homes

Passive House / Eco-friendly

17 type of work

Extension

New Build

7 services

Design / Plans

Planning permission application

1 achievement

Architect page

RéflexeS Architecture was founded in September 2019. The architecture studio is particularly drawn to work on existing buildings, where it makes the most of each constraint involved, as well as projects in restricted environments requiring an astute, optimised architectural design. The studio also believes in the principle of "co-construction" with their clients.  

12 property type

Single-Family Homes

Townhouses

12 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application

1 achievement

Fabienne Gros and her team work in collaboration with a whole network of qualified craftsmen, always guaranteeing high quality construction. Committed to providing a practical and carefully designed architecture, the agency is mindful of site integration and the climatic and topographical dimensions that accompany it.

13 property type

Single-Family Homes

Passive House / Eco-friendly

9 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

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On trouve l'architecte pour vous

Cédric Héry is an architect with extensive experience and is registered with the Order of Architects. He approaches architecture as a means of expressing his creativity, while remaining attentive to the world of tomorrow. His expertise and versatility allow him to work on a wide range of projects.

13 property type

Single-Family Homes

Passive House / Eco-friendly

8 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

5 achievements

Architect page

IFan Juang is a fully-licensed architect who has developed his architectural practice around large-scale projects, mainly on behalf of local authorities or public institutions. His creativity and originality form the foundation of his designs and apply to every project he undertakes.

17 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

12 achievements

Architect page

A DPLG architect based in Évenos, Julien Thirion questions the previously established architectural norms. He sees architecture as a new and innovative solution, capable of revolutionising the way we perceive the landscape and the uniqueness of a place.

27 property type

Single-Family Homes

Passive House / Eco-friendly

16 type of work

Extension

New Build

7 services

Design / Plans

Planning permission application

6 achievements

Pamela Martin is an experienced architect who considers architecture as a sensitive and evolving dynamic. This architect is committed to accompanying you at each stage of your project for a controlled and sustainable design.

16 property type

Single-Family Homes

Chalets / Wooden Houses

13 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

Together
we can define your project

Make a free appointment with our specialist advisor.

Request a meeting
On trouve l'architecte pour vous

3 achievements

Amélie PRUSAK is for all building owners. Functionality, comfort and quality are at the heart of her architectural work. Whatever the size of the project, active listening and dialogue allow for a unique, singular result, in the image of the client.

13 property type

Single-Family Homes

Chalets / Wooden Houses

12 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application

3 achievements

Architect page

For over two decades, François BERNIER Architecte has distinguished itself through its expertise and commitment to architectural excellence. Based in Pérouges/Meximieux, the firm operates throughout the Auvergne–Rhône-Alpes region to offer innovative and tailor-made solutions to its clients. The mission is to transform your ideas into tangible realities, whether for new constructions, renovations, or extensions. Each project is an opportunity to create spaces that perfectly meet the needs and aspirations of clients.

12 property type

Single-Family Homes

Passive House / Eco-friendly

8 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application

1 achievement

ATELIER ARCAD is a team of 16 architecture enthusiasts who advise and guide you in all your projects. Whether you are an individual or a community, we offer you a tailor-made service.

16 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application

4 achievements

Eva-Marie and Didier LALLEMENT are architects specializing in contemporary residential projects. They create, renovate and extend spaces with sobriety and functionality. Their priority: the organization of housing and cost control to provide harmonious and accessible housing.

15 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

We find
the architect for you

Search
On trouve l'architecte pour vous

1 achievement

DPLG architect, loves old stones and renovation, trained on my renovation bonus, energy renovation of old houses, architectural advice, loves interior decoration, varied projects

12 property type

Single-Family Homes

Townhouses

9 type of work

Extension

Renovation

6 services

Design / Plans

Planning permission application

Trained as both an architect and an engineer, with 18 years of experience in the construction field, Alexandre AKBARALY develops a passionate contemporary architecture, placing his expertise at the service of each project. The agency supports its clients from the earliest stages of design through to completion, with particular attention to users’ needs and respect for the environment.

11 property type

Apartment

Multi-unit Residential

9 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

9 achievements

Architect page

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

13 type of work

Extension

New Build

7 services

Design / Plans

Planning permission application

Antoine Watremez is an HMONP architect based in the 18th arrondissement of Paris. He specializes in renovation, interior architecture, and design.

13 property type

Single-Family Homes

Chalets / Wooden Houses

8 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

Together
we can define your project

Make a free appointment with our specialist advisor.

Request a meeting
On trouve l'architecte pour vous
Architect page

Johanna GOZLAN is a DPLG architect, registered with the Order of Architects. She primarily works on individual home extension projects, while also supporting large-scale commercial developments.

17 property type

Single-Family Homes

Passive House / Eco-friendly

3 type of work

Extension

New Build

2 services

Planning permission application

Design / Plans

3 achievements

Architect page

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

12 type of work

Extension

New Build

7 services

Design / Plans

Planning permission application

Architect page

Althea Architecture, founded in 2025, is a young, ambitious, and human-centered firm based near Strasbourg. Their vision looks toward the future: to create architecture that is thoughtful, sustainable, and meaningful.They work across a wide range of programs — residential, office, industrial, public facilities, and mixed-use projects — always with the same commitment: to find the most fitting, context-sensitive, and resource-conscious solution.Convinced that what already exists is valuable, they prioritize renovation over demolition, preserving what can be saved and giving new life to buildings. From feasibility studies to on-site supervision, they offer comprehensive project support, working with a trusted network of skilled partners to ensure coherent, high-quality results.

21 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

1 achievement

Ardalan Baradaran, a graduate of the Montpellier School of Architecture (2005), has been a self-employed architect since 2007. He works throughout the Montpellier area and surrounding departments, specializing in the restoration of local heritage and historic buildings, contemporary projects, extensions and vertical extensions, and comprehensive renovations.

His approach is fully bespoke, with careful attention to environmental, fire safety and accessibility regulations. He provides comprehensive project support, from design and planning applications through to construction management and site coordination.

15 property type

Single-Family Homes

Chalets / Wooden Houses

14 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application