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

MARIELOUISE is an architectural firm founded in 2021 by Emma Rigoulot and Maxence Mompeu-Lebel in Arles.

Honest and conscientious projects, well-thought-out and well-constructed.

20 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

The agency develops creative, functional architecture that respects Breton heritage. Based in Morbihan, it combines a humanist approach, vernacular reinterpretation, landscape integration, and budgetary control, with constant attention to the environment, local culture, and customs.

17 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

4 achievements

23 years of experience in single-family homes, offices, commercial buildings, and public buildings. Experience at all levels of architectural practice, from design to completion, both in-house and on-site.

An architect to work with you on your project.

19 property type

Single-Family Homes

Chalets / Wooden Houses

9 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

8 achievements

Architect page

You are looking for an architect who listens, contact Katia Pereira to discuss your project. She will help you define your project according to your needs, and will support you in making it a reality.

21 property type

Single-Family Homes

Chalets / Wooden Houses

15 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

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The architectural firm Cédric Nicalin Architecte supports you in carrying out your projects, whether you are an individual, a professional or a community.

21 property type

Single-Family Homes

Passive House / Eco-friendly

17 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

4 achievements

Architect page

Céline Babin assists you with residential or commercial premises projects, development, construction or renovation . She strives to work on sensitive and functional spatial design for better comfort and use of your interiors.

14 property type

Single-Family Homes

Chalets / Wooden Houses

15 type of work

Extension

New Build

3 services

Design / Plans

Planning permission application

4 achievements

Damien Couzin / Architect offers tailor-made support for all types of projects. Creativity, technical skills and attentiveness are at your service under different missions (Feasibility, design, site monitoring, etc.).

19 property type

Single-Family Homes

Passive House / Eco-friendly

16 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

The architectural agency, created by Justine Buisson and Clément Nouvel in 2022, has been based in Ouistreham since 2024. It works on various projects, both in renovation and new construction, and is attached to the history of the place and its occupants.

12 property type

Single-Family Homes

Chalets / Wooden Houses

12 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
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Architect page

Hello, my name is Julie BOULAY, Architect at Cabinet ImaJ’in. Together, let’s explore your ideas, your wishes, and your constraints to bring a tailor-made project to life. Whether you dream of a contemporary house, a charming renovation, or an extension designed for your…

19 property type

Single-Family Homes

Passive House / Eco-friendly

17 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

The ANO Studio architecture agency offers all types of architectural and interior design missions: construction, renovation, extension, planning advice, etc.

From the filing of a Building Permit to site monitoring, Adèle BOGHOSSIAN supports you on your future apartment, house, restaurant, shop, offices, etc. project.

12 property type

Single-Family Homes

Townhouses

12 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

3 achievements

An experienced architect based in Tergnier, Florence Bibaut assists individuals and professionals in the realization of their projects, from feasibility studies to construction supervision.

Each project is handled with the same rigor to meet your needs.

13 property type

Single-Family Homes

Chalets / Wooden Houses

9 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

4 achievements

Architect page

CAP37 is a small architectural agency specializing in the renovation, rehabilitation and restoration of old buildings. It is a structure on a human scale putting the notions of proximity and roots at the heart of its practice.

7 property type

Single-Family Homes

Chalets / Wooden Houses

10 type of work

Extension

Renovation

6 services

Design / Plans

Planning permission application

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On trouve l'architecte pour vous

1 achievement

HYTT is an architecture and landscape design agency based in Villefranche-sur-Saône, at the crossroads of the Beaujolais region, the Saône Valley, the Ain department, and the Lyon metropolitan area. The agency supports private clients (individuals, businesses, professionals, developers, etc.) and public clients (local authorities and public bodies) on projects of various scales, including new construction, rehabilitation, extensions, transformations, and landscape developments

23 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Extension

New Build

7 services

Design / Plans

Planning permission application

1 achievement

Architect page

The Arch'Ingénierie agency, with more than 40 years of experience, guides its clients through all phases of projects, offering expertise, site monitoring and a network of tradesmen.

20 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Extension

New Build

6 services

Design / Plans

Planning permission application

Cailloux Bâtons Architecture, located in Hauts-de-France, is a socially and ecologically committed agency. She supports renovation and construction projects by prioritizing listening, innovation and sustainable techniques, such as the reuse of materials.

8 property type

Single-Family Homes

Passive House / Eco-friendly

6 type of work

Extension

New Build

4 services

Design / Plans

Planning permission application

1 achievement

A Latin American architect based in France, I design sensitive and functional architecture, nourished by a rich European and field experience, between high mountains and varied projects.

16 property type

Single-Family Homes

Townhouses

17 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

4 achievements

IN SILICO ARCHITECTURE is a landscape, architecture, and urban planning agency based in Lagny-sur-Marne, east of Paris. They design ecological projects that address the comfort challenges of tomorrow, creating resilient buildings and gardens.The working method they have developed is innovative, combining drawings, models, calculations, and 3D simulations. Their goal is to promote eco-design, addressing environmental issues, comfort, and resource efficiency.

22 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

Architect page

Architect specialising in the design and planning of public-access buildings, Géraldine RADJEB brings her expertise to demanding and high-impact projects, particularly within the early childhood sector. Combining technical knowledge, regulatory expertise and a user-centred approach, she designs functional, compliant and thoughtfully crafted spaces that meet the highest standards of safety, comfort and quality.

18 property type

Single-Family Homes

Passive House / Eco-friendly

10 type of work

Extension

Renovation

6 services

Design / Plans

Planning permission application

Abdenour BOUGHRARA, DPLG Architect with 15 Years of Experience in Architectural Design and Construction Management TAP Architecte handles building permits for various types of projects: collective housing, single-family homes, as well as public or private buildings. They also manage construction supervision, provide expert advice, propose architectural solutions, and plan space layouts. They support their clients in selecting construction companies, ensuring that budgets and project goals are respected throughout the process.

26 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Extension

New Build

7 services

Design / Plans

Planning permission application

1 achievement

Architect page

Designing an architectural project begins above all with understanding a place, its uses, and its ambitions. Each intervention requires a tailor-made approach combining creativity, precision, and attention to detail in order to create sustainable and harmonious spaces.

A young architect registered with the Architects’ Order, Marie LENNON would be delighted to discuss your projects with you, from small-scale interventions to larger developments.

27 property type

Single-Family Homes

Passive House / Eco-friendly

17 type of work

Extension

New Build

7 services

Design / Plans

Planning permission application