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.

5 achievements

5°Est Architecture, a practice specialising in heritage architecture, supports projects involving the rehabilitation, renovation and enhancement of existing buildings. The practice takes a sensitive and contemporary approach, respecting the history, materials and identity of each place while responding to today’s uses and needs.

11 property type

Single-Family Homes

Passive House / Eco-friendly

9 type of work

Conversion

Renovation

7 services

Design / Plans

Planning permission application

1 achievement

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A thoughtful approach to architecture, attentive to needs, uses, habits, the surrounding territory and what is already there...

Whether for a renovation, a new-build project or a light alteration, Esseuil Studio supports you at every scale of your project, working alongside you to create a warm, welcoming space that truly reflects who you are.

25 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Conversion

New Build

5 services

Design / Plans

Planning permission application

3 achievements

Architect page

Global approach including eco-design with passive or active systems, the use of bio-sourced materials and the integration of innovative solutions adapted to your needs, serving a healthy and sustainable habitat while meeting environmental and aesthetic requirements.

15 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Conversion

New Build

5 services

Design / Plans

Planning permission application

By choosing to collaborate with Cécile Joanne, you will benefit from attentive and personalized support. In front of me the view Atelier d’architecture opens its doors to you, do not hesitate to contact Cécile Joanne, your architect, to discuss your projects.

24 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Conversion

New Build

6 services

Design / Plans

Planning permission application

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8 achievements

Artéphise Architecte enhances your spaces with a tailor-made approach combining elegance and ecology. Specialist in high-end renovation, the agency enhances the existing to create exceptional, elegant, functional and sustainable places, in perfect harmony with your aspirations.

27 property type

Single-Family Homes

Passive House / Eco-friendly

17 type of work

Conversion

New Build

6 services

Design / Plans

Planning permission application

6 achievements

Architect page

From creation to renovation, Grégoire PARCOLLET and his team design and deliver unique, optimized, and sustainable spaces—whether homes, offices, studios, or commercial premises.

12 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Conversion

New Build

7 services

Design / Plans

Planning permission application

La démarche de l’agence d’architecture est née d’une volonté de retour aux sources et de donner force à la création, faisant échos aux éléments simples qui tendent vers un esprit minimaliste. 

15 property type

Single-Family Homes

Apartment

8 type of work

Conversion

New Build

5 services

Design / Plans

Planning permission application

1 achievement

AL.SI Architecture supports private clients, professionals and co-ownerships with their transformation, renovation and new-build projects. The practice takes a bespoke approach that is both rigorous and sensitive, balancing architectural quality, cost control and careful consideration of how spaces are used.

23 property type

Single-Family Homes

Passive House / Eco-friendly

10 type of work

Conversion

New Build

7 services

Design / Plans

Planning permission application

Together
we can define your project

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1 achievement

HMONP-qualified architect based in Metz, she works with both private and professional clients on construction, renovation and extension projects throughout Moselle. Her approach combines attentive listening, bespoke design and architectural excellence to create functional, light-filled spaces tailored to each client's lifestyle.

22 property type

Single-Family Homes

Passive House / Eco-friendly

5 type of work

Conversion

New Build

3 services

Design / Plans

Planning permission application

1 achievement

Today, Virdi Architecture embodies a vision of excellence, innovation and creativity. The practice applies this vision to every project, from initial design through to completion, continually pushing the boundaries of architecture.

Mr Parmjeet Singh also worked at Archipel 41, where he contributed to prestigious projects such as the development of BMW dealerships in Vélizy and the Neubauer Land Rover dealership in Paris 17th arrondissement. He was involved throughout the projects, from preliminary design through to execution, drawing on his expertise to create spaces that are both functional and aesthetically refined.

26 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Conversion

New Build

7 services

Design / Plans

Planning permission application

1 achievement

A values-driven architect, he has focused since his studies on environmental issues, creating strong connections between indoor and outdoor spaces, designing harmonious exterior environments, integrating buildings into their landscapes and optimising energy requirements.

With 23 years of experience as an architect — 15 years working as an employee and 8 years as an independent architect — he has developed extensive expertise throughout his career.

Today, he specialises in bioclimatic architecture and renewable energy, with a particular focus on designing passive houses in the Dordogne, notably in the Bergerac and Périgueux areas.

21 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Conversion

New Build

4 services

Design / Plans

Planning permission application

1 achievement

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An architect graduated from the École Spéciale d’Architecture and holder of the HMONP qualification, Alexandra BELLANGER founded her agency in 2021 after several years of experience in the renovation of offices, restaurants and residential properties. Specialised in enhancing Parisian heritage, she supports her clients through every stage of their project, from design to completion, with a personalised and rigorous approach.

8 property type

Single-Family Homes

Townhouses

8 type of work

Conversion

New Build

7 services

Design / Plans

Planning permission application

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2 achievements

Arthur Montessuit, an architect trained at EPFL, based in Cluses in the heart of the Arve Valley. I support private and professional clients from the initial concept through to project completion, working on new-build homes, extensions, energy renovations, chalet and barn conversions, and commercial and professional premises. I work throughout Haute-Savoie, including the Arve Valley, Genevois, Annecy area, Chablais and beyond.

22 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Conversion

New Build

4 services

Design / Plans

Planning permission application

1 achievement

Architect page

Atelier KONJ supports private clients and professionals (engineering consultancies, contractors and project owners) throughout their architectural projects, from design through to completion, including technical studies. Combining creativity, technical expertise and rigorous execution, each project is developed with particular attention to functionality, architectural quality and compliance with the project's objectives.

26 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Conversion

New Build

7 services

Design / Plans

Planning permission application

9 achievements

Architect page

ELKA architecture is a multidisciplinary agency offering a service ranging from permit filing, renovation and interior design. A transversality that highlights projects in your image.

17 property type

Single-Family Homes

Townhouses

14 type of work

Conversion

New Build

4 services

Design / Plans

Planning permission application

2 achievements

Architect page

Welcome to Bleu de Blanc, an architectural and interior design studio based in Quimper, Brittany, where your dreams and ideas take shape in color and in reality. Driven by a passion for creating spaces that reflect both personality and purpose, Bleu de Blanc transforms every project into a unique and inspiring journey.

21 property type

Single-Family Homes

Passive House / Eco-friendly

16 type of work

Conversion

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

8 achievements

Architect page

ADNET ARCHITECTURE agency works on renovation, construction, extension and elevation projects on the Côte d'Azur and the Nice hinterland. It mainly supports private clients throughout their project for villas, apartments; but also for businesses, hotels, restaurants, or in the tertiary sector, always with a view to preserving the surrounding built environment.

21 property type

Single-Family Homes

Chalets / Wooden Houses

14 type of work

Conversion

New Build

6 services

Design / Plans

Planning permission application

1 achievement

Architect page

An architecture agency specializing in architectural design, renovation, and project management, Archi’Green supports both private individuals and professionals from project study through to site supervision, ensuring architectural quality, regulatory compliance, and environmental performance. The agency develops tailor-made projects, for both new builds and renovations, across residential, office, and commercial programs. It favors a contextual approach that is attentive to use, budget, and technical constraints, while fully integrating environmental and regulatory considerations. Each project is conceived as a unique response, combining architectural excellence, functionality, and sustainability.

21 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Conversion

New Build

5 services

Design / Plans

Planning permission application

3 achievements

Architect page

ASSA Architectes is a five-person firm located in the center of Grenoble.

We work in all areas of construction and carry out all our own projects.

We are trained in the DDQE (French Environmental Quality and Quality) and can carry out bioclimatic projects.

18 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Conversion

New Build

6 services

Design / Plans

Planning permission application

Architect page

Serving both private individuals and professionals, Oyat Atelier offers a solid foundation, rigorous design, and creative freedom that allows each project to find its natural form. With fifteen years of experience across diverse fields—education, office and commercial spaces, collective housing, healthcare, cultural facilities, and single-family homes—the studio supports every project with rigor, inventiveness, and a human-centered approach built on trust. Oyat Atelier designs sustainable, harmonious, and fully bespoke spaces.

15 property type

Single-Family Homes

Passive House / Eco-friendly

10 type of work

Conversion

New Build

3 services

Design / Plans

Planning permission application