576 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.

Architecte in Bordeaux 33300

ARRIERE COUR Architecture is based in Bordeaux and Dax. Specializing in building rehabilitation, the agency supports its clients at every stage of the project, offering tailor-made, functional, and sustainable solutions. Each intervention is conceived as a dialogue between the existing structure and its uses, with particular attention to detail and the quality of the spaces.

14 property type

Single-Family Homes

Chalets / Wooden Houses

Townhouses

7 type of work

Extension

New Build

Renovation

3 services

Design / Plans

Planning permission application

Construction Management

Architecte in Aubagne 13400

Carré Bleu Group has been designing and delivering architecture and engineering projects for over 40 years. With more than 10,000 completed projects, it combines high standards, innovation, sustainability, and enthusiasm to meet the needs of its clients.

27 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

17 type of work

Extension

New Build

Renovation

7 services

Design / Plans

Planning permission application

Construction Management

Architecte in Blois 41000

Atelier Frédéric Bruxelle provides tailored architectural and project management services for both private and professional clients, supporting projects from concept to completion.

Its services cover every stage of the process, from initial sketches to construction supervision, including cost evaluation, building permit applications and contractor consultations.

Based in Blois (41), the team of DPLG architects and building designers remains attentive to each client’s needs in order to create fully customized architectural projects.

13 property type

Apartment

Multi-unit Residential

Retail

11 type of work

Extension

New Build

Renovation

6 services

Design / Plans

Planning permission application

Construction Management

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Architecte in Valady 12330

PRONAOS Architecture specializes in the restoration, rehabilitation, and preservation of built heritage. The agency assists owners of castles, historic monuments, prestigious residences, as well as traditional rural homes and agricultural buildings throughout every stage of their project. Its services include construction planning, grant and funding applications, building permit preparation, contractor selection, and construction supervision.

15 property type

Single-Family Homes

Townhouses

Country Homes

11 type of work

Extension

Renovation

Energy renovation

7 services

Design / Plans

Planning permission application

Construction Management

Architecte in FRANCIN 73800

Nicolas Gratier Architecte is a firm based in Francin (73800), specialized in the design and realization of architectural projects in Savoie, Isère, and Haute-Savoie. The agency supports both private and professional clients in a variety of projects: villa construction, renovations, extensions, commercial rehabilitations, and small collective housing developments. The firm stands out through its tailor-made approach, attentive to each client’s needs and to the specific characteristics of the region. Committed to quality, it places particular importance on respecting budgets and deadlines, ensuring controlled, sustainable projects adapted to contemporary uses.

20 property type

Single-Family Homes

Chalets / Wooden Houses

Smart Homes

10 type of work

Extension

New Build

Renovation

3 services

Planning permission application

Construction Management

Preliminary works declaration

5

Architecte in Faucompierre 88460

Sophie Caraux, founder of PIVA Architecture, is a committed architect specializing in sustainable, environmentally responsible design. Combining ecological principles, local expertise, and innovative building techniques, she supports both public and private clients throughout the Vosges region and neighboring areas.

18 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

14 type of work

Extension

New Build

Renovation

7 services

Design / Plans

Planning permission application

Construction Management

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we can define your project

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Architecte in Saint-Mandé 94160

Cycled is a multidisciplinary architecture agency specializing in the renovation, transformation and design of professional spaces across France. From feasibility studies to project delivery, the agency supports hospitality, office, retail, industrial and healthcare projects with technical expertise, regulatory compliance and tailored architectural solutions.

10 property type

Multi-unit Residential

Retail

Hotels - Restaurants

8 type of work

Extension

Renovation

Energy renovation

6 services

Design / Plans

Planning permission application

Construction Management

5

Architecte in Vélizy-Villacoublay 78140

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

Chalets / Wooden Houses

12 type of work

Extension

New Build

Renovation

5 services

Design / Plans

Planning permission application

Construction Management

Architecte in Divonne-les-Bains 01220

Design and creation of living, working, and leisure spaces... residential building design, house design, apartment design, interior architecture, and landscapes.

We create for and with you!

10 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

10 type of work

Extension

New Build

Renovation

4 services

Design / Plans

Planning permission application

Construction Management

5

Architecte in Paris 75002

Marine Desveaux is an architect specializing in all types of rehabilitation or renovation. She also has expertise in eco-construction and energy renovation. She can provide support in AMO (Project Management Assistance) for structures and manage their projects.

21 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

15 type of work

Extension

New Build

Renovation

6 services

Design / Plans

Planning permission application

Construction Management