569 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.

6 achievements

Architect page

KIDA is an architecture and design firm founded in 2015, working between France, Italy and Colombia. We offer an eco-conscious approach, adapted to the specific challenges of the sites on which we work.

21 property type

Single-Family Homes

Passive House / Eco-friendly

16 type of work

Conversion

New Build

6 services

Design / Plans

Planning permission application

11 achievements

As a DPLG Architect, I offer to support you in your construction, extension, or renovation project, at the level of involvement you require: sketch design, feasibility study, building permit application, project management, or site supervision.

25 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

Architect page

Xabi CLAVERIE designs and renovates projects ranging from individual homes to large-scale developments, including public-access buildings such as hotels, restaurants, and office spaces. He places people and simplicity at the core of every project, combining innovation, respect for usage, and sustainability to create responsible architecture adapted to today’s and tomorrow’s challenges.

20 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Conversion

New Build

3 services

Design / Plans

Planning permission application

15 achievements

Architect page

Architecture / Consulting / Engineering

Summa is an agency that does not hesitate to think outside the box, offering you tailor-made services.

8 property type

Single-Family Homes

Townhouses

13 type of work

Conversion

New Build

7 services

Design / Plans

Planning permission application

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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

Conversion

New Build

6 services

Design / Plans

Planning permission application

8 achievements

SAUA, Urban and Architectural Development Company, designs and carries out the construction, renovation, and extension of various developments and buildings — including individual and collective housing (up to the 4th family) and public-access establishments (ERP) such as shops, offices, schools, sports facilities, cultural centers, agricultural or industrial buildings, subject to labor code regulations and classified environmental protection installations (ICPE). It provides relevant diagnostics of existing structures and high-quality project designs through its complete mastery of building engineering. It promotes bioclimatic architecture, optimizing energy performance and environmental quality across all sites.

21 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

Architect page

Studio Yzé is an architecture and design studio founded through the collaboration between Marine NARQUET, an interior architect and designer trained at Penninghen, and Constance PICARD, an HMONP architect graduated from ENSA Paris-Malaquais. Based in the heart of Montmartre, they have created their own Cité d’Ys, a space of freedom and inspiration where a timeless aesthetic emerges.

17 property type

Single-Family Homes

Passive House / Eco-friendly

6 type of work

Conversion

Renovation

6 services

Design / Plans

Planning permission application

2 achievements

A passionate architect, Camille MAGNIER supports your construction and renovation projects from design to completion. Expertise, creativity, and attentive listening are at the heart of her approach, designing tailor-made, sustainable spaces perfectly adapted to your needs and budget.

16 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Conversion

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

1 achievement

Architect page

A creative and analytical architect, Robin BESSON designs optimized, luminous, and intuitive spaces inspired by a systemic approach rooted in his research. He supports his clients with attentive listening and precision, transforming each project into a harmonious, efficient, and deeply human place where aesthetics, functionality, and well-being naturally reinforce one another.

9 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Conversion

New Build

6 services

Design / Plans

Planning permission application

Architect page

SAAP Architecture designs bespoke, sustainable, and well-considered projects for private clients, companies, and public authorities. The practice works on renovation, transformation, and new-build projects with rigor, attentiveness, and a strong sense of place—always closely connected to the context of the site and the project.

14 property type

Single-Family Homes

Passive House / Eco-friendly

10 type of work

Conversion

New Build

4 services

Design / Plans

Planning permission application

5 achievements

Founded by Etienne LOMBARD, Etienne LOMBARD ARCHITECTE is a committed architectural practice that carefully listens to each client in order to meet their expectations and needs. Every project responds uniquely to the various challenges within which it is set. The approach is always tailored to the client’s program and budget, as well as to the geographical context of the site.

12 property type

Single-Family Homes

Passive House / Eco-friendly

17 type of work

Conversion

New Build

7 services

Design / Plans

Planning permission application

10 achievements

Cathala Architectes develops high-performance projects integrating bioclimatic design, dynamic thermal modeling, and innovative construction solutions. The agency ensures strict compliance with BEPOS standards, optimizing envelopes, systems, and flows to deliver sustainable buildings that meet current environmental requirements.

14 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Conversion

New Build

5 services

Design / Plans

Planning permission application

We find
the architect for you

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Since 2007, Corentin DESMICHELLE’s studio has been developing an architecture of restraint at every scale, from individual housing to public facilities. Specializing in passive design and the use of bio-based materials, he favors an ecosystem-based and circular approach. Whether for new builds or the renovation of historic structures, each project is conceived as a living resource reserve, aiming for environmental excellence and zero waste.

27 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Conversion

New Build

7 services

Design / Plans

Planning permission application

1 achievement

Architect page

Florent LEONHARDT works on construction, renovation, rehabilitation, and restructuring projects in urban as well as suburban areas, including housing, residential buildings, workplaces, cultural and religious spaces, offices, educational or institutional facilities, as well as their outdoor extensions in the countryside, mountains, parks, and gardens.

27 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Conversion

New Build

6 services

Design / Plans

Planning permission application

Architect page

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

17 type of work

Conversion

New Build

7 services

Design / Plans

Planning permission application

8 achievements

Architect page

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

15 type of work

Conversion

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

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

Conversion

New Build

7 services

Design / Plans

Planning permission application

5 achievements

Architect page

CHART Architecte designs contemporary, understated, and sustainable architecture that is carefully tailored to its context, its users, and the use of bio-based and geo-based materials. Based in the Lyon region, the firm undertakes a wide variety of projects, including private homes, extensions, heritage renovations, transformations of existing buildings, and more technically demanding developments. Every project is guided by a commitment to spatial quality, natural light, and thoughtful construction.

9 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Conversion

New Build

4 services

Planning permission application

Construction Management

3 achievements

V.G.A. – Vincent Gillot Architecture – is an architecture agency founded in Paris in the summer of 2020, committed to social and environmental innovation. In a world facing increasingly complex challenges, the agency believes in architecture’s ability to question the way we live, rethink our societies, and inspire new ways of inhabiting the world.

27 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Conversion

New Build

5 services

Design / Plans

Planning permission application

3 achievements

Architect page

Tanguy Aubin advocates a pragmatic, understated architecture in which spaces and materials remain clear and legible, and are sometimes left raw. The quality of his architecture lies in its proportions, spatial sequences and use of light, as well as in its ability to adapt to a changing climate.

As a mobile architect, he works across three regions to which he has strong personal ties: the Paris region, Ille-et-Vilaine and Morbihan.

13 property type

Single-Family Homes

Passive House / Eco-friendly

9 type of work

Conversion

New Build

6 services

Design / Plans

Planning permission application