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 Toulon 83000

Whether you are an individual or a professional, Atelier Matteo Sandro is here to listen to you and bring your projects to life with creativity, rigor and sensitivity, by creating unique places, in harmony with your identity, your needs and your budget.

21 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

17 type of work

Extension

New Build

Renovation

6 services

Design / Plans

Planning permission application

Construction Management

Architecte in Vaulx-en-Velin 69120

Architect Graduated from the Grenoble School of Architecture in 2000, Clément Bel became manager of Arkétype studio with a strong commitment to eco-construction in 2011.

14 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

17 type of work

Extension

New Build

Renovation

6 services

Design / Plans

Planning permission application

Construction Management

Architecte in Paris 75010

Experienced and multidisciplinary architectural agency.

15 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

9 type of work

Extension

New Build

Renovation

5 services

Design / Plans

Planning permission application

Construction Management

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Architecte in Le Crozet 42310

RELEV is a joyful and committed heritage architecture firm, specializing in the custom restoration of historic buildings. We work by hand, with you, to create something beautiful, fair, and meaningful.

10 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

9 type of work

Extension

Renovation

Energy renovation

4 services

Design / Plans

Planning permission application

Construction Management

Architecte in Chambly 60230

Atelier DAM, an architecture, project management, and planning firm located between Oise and Île-de-France, supports the construction, renovation, extension, and transformation of all types of properties.
Their team designs and manages tailor-made projects that combine design, spatial optimization, and technical performance, revealing each building’s potential and ensuring long-term value. From housing rehabilitation to the creation of professional spaces, they design functional, harmonious, and profitable environments, adapted to today’s and tomorrow’s needs. With a creative, rigorous, and pragmatic approach, Atelier DAM transforms every idea into a concrete, controlled, and sustainable project, serving both real estate value and user comfort.

18 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

14 type of work

Extension

New Build

Renovation

6 services

Design / Plans

Planning permission application

Construction Management

Architecte in Levallois-Perret 92300

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

Chalets / Wooden Houses

11 type of work

Extension

New Build

Renovation

4 services

Design / Plans

Planning permission application

Construction Management

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Architecte in Gambais 78950

Architect specialized in residential design, Marion GRANDIN has been supporting private clients for nearly ten years with their single-family homes, extensions, renovations, and rehabilitation of existing buildings. She also works on collective housing projects and as a condominium architect. As a single point of contact, she designs tailor-made, sustainable spaces adapted to your daily life, from feasibility studies and initial sketches through to construction supervision.

18 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

9 type of work

Extension

New Build

Renovation

6 services

Design / Plans

Planning permission application

Construction Management

Architecte in Montpellier 34000

CabCab Architecture is a studio founded in Montpellier in 2012, rooted in the Mediterranean basin. The practice develops site-specific architecture and design objects, attentive to climate, uses, and resources, drawing from local craftsmanship and vernacular cultures to create contemporary responses for housing, hospitality, public spaces, and shared environments.

Balancing restraint, constructive rigor, and contextual intelligence, its approach seeks to create forms that are accurate, sustainable, and meaningful. It conceives spaces as living relationships between places, uses, and the people who inhabit them.

16 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

17 type of work

Extension

New Build

Renovation

5 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

5

Architecte in Paris 75010

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

Chalets / Wooden Houses

15 type of work

Extension

New Build

Renovation

6 services

Design / Plans

Planning permission application

Construction Management