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.

Architect page

Light, function, and material form the trio at the heart of an architecture crafted by Atelier Rems according to your needs and in harmony with its territory. Whether for private or public projects, the studio primarily works with existing structures, sometimes leading the way to new-build projects. Atelier Rems pays particular attention to enhancing and valuing the territories in which it operates.

11 property type

Single-Family Homes

Passive House / Eco-friendly

9 type of work

Extension

New Build

3 services

Planning permission application

Construction Management

1 achievement

ALMA (Atelier Léa Monestier Architecte) is an architectural practice operating throughout the Nouvelle-Aquitaine region. Through a relationship built on trust, collaboration, and attentive listening, the agency develops tailored solutions that transform its clients’ ambitions into sustainable and meaningful spaces. Combining architectural expertise, design, and project management, ALMA creates places that are functional, sensitive, and built to stand the test of time.

17 property type

Single-Family Homes

Chalets / Wooden Houses

10 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

3 achievements

The GL+ Architecture agency combines creativity and professionalism to succeed in all its clients' projects. The agency offers tailor-made solutions and ensures compliance with budgets and deadlines, offering complete support with complete confidence.

25 property type

Single-Family Homes

Passive House / Eco-friendly

17 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

Architect page

With over 30 years of experience in project management for both public and private commissions, Jean-François GEORGEL specializes in renovation, transformation of historic buildings, and extensions.
He enhances existing structures to create elegant, functional, and sustainable spaces in harmony with your aspirations.

18 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

We find
the architect for you

Search
On trouve l'architecte pour vous

3 achievements

Architect page

A construction project is built upon close collaboration between you and the Hello Architecture & Urbanisme team. The agency supports you through attentive listening in order to understand your needs, while drawing on its architectural sensitivity and expertise to reveal the full potential of each place within a controlled framework and a relationship of trust.

20 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Extension

New Build

7 services

Planning permission application

Construction Management

Architect page

Houzali MDALLAH, founder and director of MHB Architecte, designs tailor-made projects that truly reflect your identity. Naturally contemplative, she imagines noble and elegant spaces oriented toward the outdoors. Convinced that even the smallest surface deserves architectural attention, she encourages her clients to seek professional guidance regardless of the project’s scale.

24 property type

Single-Family Homes

Passive House / Eco-friendly

8 type of work

Extension

New Build

2 services

Design / Plans

Planning permission application

Architect page

25 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

1 achievement

The Barthélémy LAIGNEL Architecture Agency has been based in Courseulles-sur-Mer since 2019. It designs and supports both new-build and renovation projects, and has gradually specialized in architect-designed houses and villas. The agency works with private clients, developers, and public project owners, with rigor, clarity, and high architectural standards.

19 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Extension

New Build

5 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

1 achievement

Architect page

It is also possible to propose a partial mission which is limited to the general design and the administrative request.

Aside from the advisory visit, the first appointment is free of charge.

18 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application

1 achievement

Young architect, rigorous and attentive, I will know how to adapt to your desires and guide you to create your ideal living space.

15 property type

Single-Family Homes

Chalets / Wooden Houses

12 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

4 achievements

Architect Hélios Constantin designs harmonious, sustainable, and poetic spaces, combining local materials, reuse, and landscape integration to reveal each site’s potential while respecting the environment and its users.

25 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

4 achievements

CLAC – Compagnie Libre d’Architectures Communes – was founded by architects Mathilde Floureux and Maryline Collet in Montpellier. Driven by a shared passion for collaboration and collective creation, the agency designs living and working spaces where people, teamwork, and sustainable architecture are at the heart of every project.

19 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

We find
the architect for you

Search
On trouve l'architecte pour vous

3 achievements

Adrien Plinet founded his studio Atelier de la Montagne Noire to focus on the projects he's passionate about. Drawing on his experience, he is able to adapt to each situation by implementing various architectural approaches and methodologies in order to meet your needs.

8 property type

Single-Family Homes

Passive House / Eco-friendly

8 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

We do not limit ourselves to imposing a vision, but work hand in hand with the client to understand their expectations, constraints and aspirations. This dialogue makes it possible to integrate practical, economic and emotional aspects of the project.

13 property type

Single-Family Homes

Smart Homes

13 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application

3 achievements

Architect page

Through a multiple approach to architectural practice, Hugues Laveder, graduate of the National School of Architecture of Lyon, master's degree in sustainable development, today continues his professional practice, alone or in a team and supports you in the development of your projects.

16 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application

1 achievement

Architect page

Architecture Concept is an innovative company specializing in the design and realization of architectural projects. Located in Douvaine, it is committed to providing tailor-made solutions that meet the specific needs of each client, respecting environmental and economic standards.

20 property type

Single-Family Homes

Passive House / Eco-friendly

11 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

1 achievement

Architect page

Camille Hovsepian, a graduate of ENSAV, founded Lumii Architecture in 2023 after more than ten years of experience in Paris. He offers an architecture that is creative, rigorous, and human, attentive to both client needs and the surrounding environment.

8 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

16 achievements

Anne-Rose BOUYER is the Managing Director of Kauri Architecture. Her dual expertise as both an architect and an interior architect allows her to approach each project with a comprehensive and complementary skill set.

26 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Extension

New Build

7 services

Design / Plans

Planning permission application

1 achievement

Dorothée Frémont designs your projects from the initial design phase to completion. She advises you and manages all permit applications.

Dorothée specializes in environmental quality management. She is also qualified in energy auditing.

17 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

4 achievements

Architect page

Studio mx is an architectural firm based in Morlaix and co-founded by Luca Chanteau Eminenti and Guillaume Lachat. With a particular focus on the implementation of materials, studio mx embraces an architecture of cultural continuity .

19 property type

Single-Family Homes

Passive House / Eco-friendly

10 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application