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.

Atelier Pugétois d'Architecture is an architecture and project management studio based in rural areas, in Puget-Théniers (Alpes Maritimes) and Sauveterre-de-Rouergue (Aveyron). Its existence is motivated by the desire to bring architectural quality and well-being as close as possible to clients for every project, regardless of scale. To achieve this, the studio engages with commitment, step by step, from initial concept to the completion of each entrusted work.

16 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

1 achievement

Architect page

C+Architecture is an architecture firm managing new construction, rehabilitation, renovation, interior and exterior design, decoration, and furnishing projects. Their team of architects and interior architects supports private clients, professionals, and public institutions in creating tailor-made projects. For them, every space should tell a story, serve a purpose, and fit seamlessly into its environment.

22 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application

8 achievements

Atelier Barrachina is an architecture studio founded in 2023, working on renovation, new construction and development projects for private and public clients. Each project is based on a careful reading of the existing context, site and uses. Thanks to a dual background in architecture and spatial design, the studio designs tailor-made projects conceived in their entirety. It offers comprehensive support, from design to administrative procedures and site supervision, within a relationship of proximity and trust.

25 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application

2 achievements

Founded in 2025 by François Pendelio Allard, HMONP architect, Reuz, Atelier d’architecture, explores projects of all scales with commitment and curiosity.

Aware of the environmental challenges of our time, Reuz advocates for a thoughtful and ecological approach, attentive to both civic and environmental concerns.

25 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Extension

New Build

7 services

Design / Plans

Planning permission application

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the architect for you

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On trouve l'architecte pour vous

1 achievement

Today, Virdi Architecture embodies a vision of excellence, innovation and creativity. The practice applies this vision to every project, from initial design through to completion, continually pushing the boundaries of architecture.

Mr Parmjeet Singh also worked at Archipel 41, where he contributed to prestigious projects such as the development of BMW dealerships in Vélizy and the Neubauer Land Rover dealership in Paris 17th arrondissement. He was involved throughout the projects, from preliminary design through to execution, drawing on his expertise to create spaces that are both functional and aesthetically refined.

26 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Extension

New Build

7 services

Design / Plans

Planning permission application

Architect page

Mindful of the consequences of climate change and especially natural risks such as flooding and submersion, architect  Julie Salou founded her practice on a commitment to environmentally-friendly buildings and urban planning.

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

The strength of the architectural firm Envergure Architectes lies in their multidisciplinary skills. Fabien Prouvost and his team bring together their individual skills to design each project with the goal of limiting its environmental impact, conserving resources and ensuring the long-term performance of your living or work space.  

19 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

4 achievements

We execute most of our projects as a full mission to ensure the joint success of the project, making the best decisions throughout the technical development and site supervision stages.

23 property type

Single-Family Homes

Passive House / Eco-friendly

15 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

2 achievements

Aurélie DUFOURG

ADa

1 Opinions

Architecte in Paris 75011

Architect page

Architect and designer, Aurélie Dufourg is a graduate of the Ecole de Condé and the School of Architecture in Paris La villette. With great agency experience, she now responds to her clients with her experience and her unique perspective.

20 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Extension

New Build

3 services

Design / Plans

Planning permission application

3 achievements

Architect page

APMH ARCHITECTURE is registered with the Order of Architects of the Centre-Val de Loire region. It is based in the 28 department, near Chartres.

It operates over a wide area, depending on the type of project.

8 property type

Single-Family Homes

Apartment

9 type of work

Extension

New Build

3 services

Design / Plans

Planning permission application

Independent architect since 2021, my work focuses mainly on the small scale of the individual: extension, elevation, rehabilitation, new house. I am called upon to collaborate with other architects for larger scale projects (collective housing, equipment, etc.)

18 property type

Single-Family Homes

Passive House / Eco-friendly

7 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

Founded in 2004, AEDIFI Architecture brings together architects and an interior designer united by a single goal: to create unique, user-centered projects. The agency supports both individuals and professionals in construction, renovation, and interior design, with a tailored, attentive, and creative approach — from concept to completion.

16 property type

Single-Family Homes

Passive House / Eco-friendly

10 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

9 achievements

Architect page

Based in the Chevreuse Valley, IMAGINARIO COLECTIVO develops a sober and contextual architectural approach, attentive to uses and existing buildings.
The firm works on housing, workspaces, retail, renovation, and heritage projects, favoring a bespoke, sustainable, and sensitive approach.

19 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

Jorge CARDENAS is an architect and certified passive building designer, founder of Atelier Cardenas Architecture, with more than twenty years of experience across diverse operations ranging from new construction to the transformation of existing buildings, supporting each project from design to completion with a rigorous and sustainable approach.

22 property type

Single-Family Homes

Passive House / Eco-friendly

10 type of work

Extension

New Build

3 services

Design / Plans

Planning permission application

19 achievements

KUNIHIKO TAKANO ARCHITECTURE is an architecture and interior design studio specializing in residential and restaurant projects. Its distinctive approach offers a sensitive and structured interior architecture, shaped by influences from Kyoto and Paris, serving well-being, functionality, and emotion.

17 property type

Single-Family Homes

Passive House / Eco-friendly

8 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application

9 achievements

Boréal Architecture is an architectural firm based in Gif-sur-Yvette, in the Essonne department, operating in the Île-de-France region and in Brittany. The firm supports private clients with their house renovation, extension, and new-build projects by offering sustainable architecture, using bio-based materials and inspired by the principles of Feng Shui.

15 property type

Single-Family Homes

Passive House / Eco-friendly

14 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

11 achievements

Architect page

26 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Extension

New Build

7 services

Design / Plans

Planning permission application

4 achievements

L'Atelier d'architecture du Pouliguen AAP is a family agency managed by two architect brothers (Thomas and Simon POILANE) based in Saint Nazaire "Au Jardin" Concerned with creating seine, ecological and pleasant architecture.

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

We offer fluid and functional architecture for both construction and rehabilitation. Individual & Professionals - Gard - Lubéron - Alpilles

We support our clients in all phases that make up a project.

19 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application

3 achievements

Céline Erbsheuser is a DPLG architect. After working for several years in an agency, she went freelance in 2014. She works on new construction projects as well as extensions, elevations and interior design.

15 property type

Single-Family Homes

Passive House / Eco-friendly

10 type of work

Extension

New Build

5 services

Design / Plans

Planning permission application