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.

5 achievements

Architect page

For more than 15 years, the architectural workshop has been studying and carrying out construction, renovation, extension and interior design projects. This architect listens to you and advises you to bring to fruition the project that really suits you.

12 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

10 achievements

Architect page

Thomas Bonnin, a state-certified HMONP architect, is based in Vélizy and responds to all your projects with unique support!

14 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application

7 achievements

Architect page

Founded by Julia and Noé, JNNC Architecture is a dynamic and innovative agency with an unwavering commitment to meeting the needs of its clients. Their multidimensional approach is committed to transforming each idea into a concrete and functional achievement.

27 property type

Single-Family Homes

Passive House / Eco-friendly

17 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

3 achievements

Pilar Blanes, DPLG architect, supports individuals in their construction, extension and renovation projects, combining creativity, technical expertise and respecting deadlines and budget.

7 property type

Single-Family Homes

Passive House / Eco-friendly

9 type of work

Extension

New Build

3 services

Design / Plans

Planning permission application

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the architect for you

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Architect page

Tablao Architecture carries out renovation and new construction projects combining respect for constraints and environmental responsibility. Human collaboration, listening and trust guide each step, from sketch to delivery, to respond to the unique challenges of each project

19 property type

Single-Family Homes

Passive House / Eco-friendly

17 type of work

Extension

New Build

6 services

Planning permission application

Construction Management

5 achievements

Architect page

DPLG Architect based in Rouen, Vitony Y designs houses, housing projects, and small public-access buildings. His approach emphasizes clarity and simplicity. He can limit his role to the building permit stage or oversee construction in collaboration with partner project managers.

14 property type

Single-Family Homes

Townhouses

7 type of work

Extension

New Build

2 services

Design / Plans

Planning permission application

An HMONP-certified and registered architect, MAR, and certified energy auditor, Dylan LEVY is the director of LEV2A Architecture. He supports public and private clients in their construction, renovation, and audit projects, combining expertise in design, regulation, energy performance, and project management. His approach blends high standards, transparency, and long-term commitment at every stage.

19 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

3 achievements

Société d'Architecture inscrite à l'Ordre des Architectes sous le matricule S00877, la Ste SACEB ( Architecture -Coordination et Économie du Bâtiment) a été créée en 1984. Depuis elle a édifié de nombreuses constructions diverses au fil des années, lui apportant ainsi une longue expéri

20 property type

Single-Family Homes

Passive House / Eco-friendly

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

Primarily specialized in the design of single-family homes, Estuaire Architecture supports its clients at every stage of their project, from the initial concept to the submission of the building permit.
Founded by Sébastien GELOT, an HMONP-certified architect, the agency provides guidance and expertise throughout the entire project process.

8 property type

Single-Family Homes

Passive House / Eco-friendly

10 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

1 achievement

Architect page

Atelier OCTA conçoit depuis 2014 une architecture humaine, durable et sur mesure, mêlant construction raisonnée, rénovation, réemploi et créativité. Basée à Lyon, l’agence intervient partout en France sur des projets variés, du logement aux lieux recevant du public.

26 property type

Single-Family Homes

Passive House / Eco-friendly

16 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

3 achievements

Architect page

ROK Architecture s’appuie sur plus de 15 ans d’expérience dans la conception et la réalisation de projets architecturaux variés, allant de projets à forte complexité technique jusqu’à la maison individuelle.

23 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

1 achievement

Architect page

For 35 years, DPLG architect specialising in commercial and retail design, including restaurants, bakeries, cheese shops, pharmacies and professional spaces. Konceptor transforms your ideas into high-performing, aesthetically pleasing and compliant spaces. Each project is tailor-made, combining architectural identity, functionality, technical expertise and regulatory compliance.

Konceptor offers comprehensive support, from the initial sketch through to the turnkey completion of the works, including the full submission of all administrative applications to the relevant planning authorities.

20 property type

Single-Family Homes

Smart Homes

12 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application

We find
the architect for you

Search
On trouve l'architecte pour vous

8 achievements

Architect page

Inter Space Architectes is a design and project implementation studio developing projects and achievements in the Paris region and in West Africa, across various scales: urban planning with sustainable and contextual components, bioclimatic and sensitive architecture, and interior architecture distinguished by high-quality craftsmanship.

21 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

1 achievement

Caroline Laffay is a State-Qualified Architect (Architecte DE-HMONP) and Heritage Architect, based in Metz, Moselle, since 2022.

Working throughout the Grand Est region, she puts her expertise in existing and historic buildings at the service of both public and private clients. Her practice covers building assessments, heritage feasibility studies, architectural project management for historic monuments, as well as major renovation and restructuring projects.

19 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Extension

Renovation

6 services

Design / Plans

Planning permission application

1 achievement

Atelier Clément Berthou, an architectural practice founded in 2024, designs bespoke projects from the initial feasibility studies through to construction supervision.

We favour a rigorous, collaborative and responsible approach, incorporating environmental considerations, quality of use and long-term sustainability to create spaces tailored to the specific needs of each project.

16 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

G.C.D Design Architecture supports private clients, professionals, investors and property developers in the design and delivery of their architectural and property projects. Our team provides support from feasibility studies through to design, administrative procedures and the management of the various stages of the project, both in France and internationally.

27 property type

Single-Family Homes

Passive House / Eco-friendly

16 type of work

Extension

New Build

7 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

Archi&Associés supports you throughout all your construction, renovation, rehabilitation and remodelling projects, whether for a home, professional premises or a public-access building.

20 property type

Single-Family Homes

Smart Homes

14 type of work

Extension

New Build

7 services

Design / Plans

Planning permission application

1 achievement

The architect benefits from a vast experience that allows him to best accommodate all of his clients’ requests.

17 property type

Single-Family Homes

Passive House / Eco-friendly

8 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

Architect page

Design, urban planning and architecture are the focus of Mathieu Coudriaud's firm. MC Architecture provides its services for all phases of a project, from analysis of the attributes and constraints of the chosen site to providing solutions perfectly suited to the client’s needs.

18 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

2 achievements

AREA Architect, led by Anastasia Garnier, is an architecture and interior design agency operating throughout France. Specializing in rehabilitation, renovation and new construction, working on projects of all scales.

14 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application