560 architects Conversion

Architect for Building Transformation

Are you looking to transform an old house, add an annex, or carry out works to rehabilitate a building? A specialist transformation architect is the professional you need. Renovating a building can be a delicate process, but thanks to their expertise, this architect takes charge of renovation projects from design all the way through to construction.

While many agree that an architect is an artist at heart, they are no less a technical and construction professional. Do not hesitate to call on this type of architect to transform your home and its interior to the fullest.

In practice, when should you hire a specialist transformation architect?

Architects are multidisciplinary professionals who master all the intricacies of renovation and construction projects — design, work supervision, budget management, administrative procedures, and more. Their involvement guarantees the success of your transformation project.

For the rehabilitation of a building
A building can have many lives, and its renovation creates spaces full of potential. In this type of project, the building's structure remains the same, but its interior is completely transformed. Room layout, utilities, décor, atmosphere — the architect can modify everything, going as far as removing certain non-load-bearing walls.
In structural renovation projects, the transformation architect may also work on the building's structure during more extensive works. This can include raising the roof, carrying out energy renovations, or even reinforcing the framework of a construction.

For the construction of an annex
Having an architect on board is mandatory when building an extension. But beyond the legal requirement, an architect's expertise is invaluable. Whether you are looking for a conservatory or a more substantial structure such as a detached studio, a garage, or a workshop, this professional will carry the project through to completion while respecting technical constraints, the budget, planning regulations, and the specific features of your environment — land type, soil conditions, and so on.

For simplifying administrative procedures
Finally, a specialist transformation architect supports you through all the administrative procedures involved. Planning permission applications, paperwork — the architect handles everything. With a thorough understanding of every aspect of their profession, they ensure compliance with the architectural regulations governing each region of France, whether in Paris or elsewhere.

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The search for a contemporary architectural language that engages in meaningful dialogue with heritage. The ALBA_ agency draws inspiration from traditional know-how while not hesitating to challenge construction techniques.

16 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Conversion

New Build

5 services

Design / Plans

Planning permission application

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Effe Architecture designs and renovates residential, hospitality, and commercial spaces with particular attention to context, users, and quality of life. The agency offers comprehensive and rigorous support, ideal for clients seeking a professional, human, and highly personalized approach.

19 property type

Single-Family Homes

Passive House / Eco-friendly

7 type of work

Conversion

New Build

3 services

Design / Plans

Planning permission application

Architect page

Cheze Architectes designs projects by adapting to a wide range of uses, contexts, and constraints. The agency develops a direct and committed approach, with a single point of contact throughout the project, and strong experience in collective housing that is now applied to diverse programs, from residential to commercial and activity-based projects.

11 property type

Multi-unit Residential

Retail

9 type of work

Conversion

New Build

5 services

Design / Plans

Planning permission application

2 achievements

For over 25 years, the Patrick Breyton Architecture Studio, based in Valence, has been designing sustainable, functional projects that are deeply integrated into their environment. The studio supports private clients, public institutions, and organizations in new construction, rehabilitation, extensions, or additions, as well as in the design of commercial and tertiary buildings. Each project is conceived on a human scale, with particular attention to usability, dialogue with the site, and the client’s objectives. 

22 property type

Single-Family Homes

Passive House / Eco-friendly

10 type of work

Conversion

New Build

6 services

Design / Plans

Planning permission application

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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

11 type of work

Conversion

Renovation

7 services

Design / Plans

Planning permission application

1 achievement

Atelier SAJ is an architectural practice led by two partner architects, with offices in Toulouse and Lille and projects throughout France. From new-build construction and extensions to interior design and renovation, we support private clients, businesses and public-sector organisations from the initial concept through to construction supervision, providing bespoke solutions, a strong focus on energy performance and rigorous budget management.

Recent publications:

Archi+ 2023

Archi+ 2026

15 property type

Single-Family Homes

Passive House / Eco-friendly

17 type of work

Conversion

New Build

7 services

Design / Plans

Planning permission application

1 achievement

Behind Atelier&Liz is the experience and vision of Élise Lusseaud, a DPLG-qualified architect, committed to an architecture that pays close attention to places, how they are used and the quality of life of those who inhabit them.

Her perspective has been shaped across different scales — from individual homes and buildings to neighbourhoods and cities. This diverse experience enables her today to design projects that are

9 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Conversion

New Build

7 services

Design / Plans

Planning permission application

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Guerina Erb is a passionate and dynamic architect dedicated to her client relationships and attentive to the personal tastes, dreams and way of life of each one. VieW Architecture & Décoration puts their creativity at your service. 

14 property type

Single-Family Homes

Chalets / Wooden Houses

15 type of work

Conversion

New Build

4 services

Design / Plans

Planning permission application

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we can define your project

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Design, urban planning and architecture are the focus of Mathieu Coudriaud's firm. MC Architecture provides its services for all phases of a project, from analysis of the attributes and constraints of the chosen site to providing solutions perfectly suited to the client’s needs.

18 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Conversion

New Build

4 services

Design / Plans

Planning permission application

5 achievements

Architect page

Stéphane Coydon is an architect who promotes teamwork to make the most of each project, in particular thanks to the involvement of qualified partners who share his passion and architectural values.  

16 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Conversion

New Build

4 services

Design / Plans

Planning permission application

After specialising nearly exclusively in residential projects, both single-family homes and multi-unit housing, Maryline Chevalier has progressively turned her focus to public projects. The architect and her studio develop an efficient approach while maintaining a strong concern for the environment. 

14 property type

Single-Family Homes

Passive House / Eco-friendly

8 type of work

Conversion

New Build

4 services

Design / Plans

Planning permission application

Jérémy Lay and Théo Navarro, both qualified and experienced architects, founded Atelier PAPYR. Together, these architects push their thinking as much in the design phase as in the construction. Conscious that the act of building can influence a landscape in a sustainable way, they choose to design their architecture using local and organic materials.

14 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Conversion

New Build

4 services

Design / Plans

Planning permission application

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Jérôme Chapelet-Letourneux is a talented architect who has gained experience in renowned agencies such as Norman Foster's and Jean Nouvel's. His experience and expertise enable him to take on a multitude of projects for private and professional clients.

12 property type

Single-Family Homes

Passive House / Eco-friendly

9 type of work

Conversion

New Build

4 services

Design / Plans

Planning permission application

10 achievements

Architect page

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

12 type of work

Conversion

New Build

5 services

Design / Plans

Planning permission application

SAS Emilie Couderc Architecte is committed to providing its expertise and professionalism to transform architectural ambitions into concrete and lasting achievements in the public and private sectors (education, sport, offices, etc.).

9 property type

Retail

Hotels - Restaurants

8 type of work

Conversion

New Build

4 services

Design / Plans

Planning permission application

1 achievement

An architect who works closely with her clients to create a project that suits them, Clara PLANES will listen to you whatever your project may be.

12 property type

Single-Family Homes

Chalets / Wooden Houses

11 type of work

Conversion

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
Architect page

Interia Construction designs and transforms high-end spaces in Paris and the Île-de-France region: first through architecture and design, then through execution, with the same team and the same level of excellence. Created in 2019 and led by three complementary partners, this human-sized structure places high standards, flexibility and proximity at the heart of every project.

24 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Conversion

New Build

7 services

Design / Plans

Planning permission application

6 achievements

Maslouhi Bonnet Architectes supports you in all your projects, whether new construction or renovation, with attentive and thoughtful listening to your needs. This attention makes each project a unique creation, placing creativity at the service of your vision.

9 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Conversion

New Build

6 services

Design / Plans

Planning permission application

1 achievement

Specialising in renovation and eco-conscious construction, Lisières works on all types of projects, from design through to construction, combining bioclimatic principles with consultation and collaborative approaches where appropriate.

Lisières is based at the foothills of the Cévennes, near Alès. The studio supports private clients, local authorities, associations and businesses throughout their projects, from initial feasibility through to final handover, including sketch designs, planning applications or prior declarations, quotation reviews and contractor negotiations.

17 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Conversion

New Build

7 services

Design / Plans

Planning permission application

5 achievements

As an architect based in Toulouse, I am committed to building on the recognised expertise and extensive experience of SCHWAB, the practice founded by my father in 1955.

Historically active across the broad housing sector — from private homes and residential developments to serviced residences — we have expanded our expertise across the fields of Architecture, Urban Planning, Landscape Design, Design and Consulting.

9 property type

Multi-unit Residential

Hotels - Restaurants

9 type of work

Conversion

New Build

4 services

Design / Plans

Planning permission application