571 architects Vertical expension

Architect for a Roof Raise

Is your home becoming too small? A roof raise — or vertical extension — could be the ideal solution to increase your home's living area. Whether to accommodate a growing family or to make up for purchasing a property that is too small, the reasons homeowners choose this option are many.

Whatever the case, a roof raise offers the possibility of adding extra square footage without sacrificing a terrace or garden, as is sometimes the case with a traditional side extension.

However, raising the roof is a complex undertaking that requires the involvement of a specialist architect in this field.

Why is it advisable to hire a specialist architect for a roof raise?

Having an architect on board is a major asset, as raising the roof is far more involved than adding a ground-level extension to a terrace.

This type of work means touching the very structure of the building and carefully analysing the original construction to determine whether the addition is feasible. The foundations and load-bearing walls must be able to support the additional structure — or will need to be reinforced.

Here are the main reasons to call on a specialist architect for a roof raise:

Technical constraints involved in the works
A roof raise is an increasingly sought-after solution in high-density urban areas, where horizontal construction is difficult. However, it requires a feasibility study and depends heavily on the quality of the existing foundations and structure. A soil survey is also necessary to ensure the long-term durability of the new construction. A specialist architect in roof raises has the knowledge and expertise required to successfully carry out this type of project.

Compliance with current regulations
A specialist architect in roof raises is well-versed in the regulations applicable in each region of France. Maximum height, number of permitted storeys — there are strict rules governing how high a property can be raised. A precise set of specifications must be adhered to.
An architect saves you valuable time by thoroughly assessing your project and proposing a plan that complies with the rules of your town or municipality.

Professional guidance in redistributing space
Following a roof raise, it is sometimes necessary to rethink the layout of your home. While the existing spaces may remain unchanged, it can be necessary to modify them — for instance, to add a staircase or relocate certain rooms, such as bedrooms, to the newly created upper level.
An architect advises and supports their clients in arranging the new spaces, with the aim of creating a home that is both practical and pleasant to live in.

5 achievements

Architect page

“High five”, an expression borrowed from the realm of sports, represents the interaction between multiple individuals celebrating the achievement of a common goal. This kind of team spirit is precisely what architect Yann Melan wished to infuse into his firm High Five Architecture, located in Fréjus on the Côte d’Azur. 

17 property type

Single-Family Homes

Passive House / Eco-friendly

6 type of work

Vertical expension

New Build

6 services

Design / Plans

Planning permission application

The team is committed to offering you a proposal that fits your budget, needs and especially your vision, placing all of their knowledge and skills at your service in order to create your unique living environment.

10 property type

Multi-unit Residential

Retail

9 type of work

Vertical expension

New Build

4 services

Design / Plans

Planning permission application

12 achievements

A DPLG architect based in Évenos, Julien Thirion questions the previously established architectural norms. He sees architecture as a new and innovative solution, capable of revolutionising the way we perceive the landscape and the uniqueness of a place.

27 property type

Single-Family Homes

Passive House / Eco-friendly

16 type of work

Vertical expension

New Build

7 services

Design / Plans

Planning permission application

3 achievements

Architect page

Based in La Garde, Cabinet Hartmann offers a full range of services, helping individuals to realise their life projects.

21 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Vertical expension

New Build

7 services

Design / Plans

Planning permission application

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4 achievements

Olivier SILVESTRI Architecture Studio is a contemporary architecture and project management agency located in Saint-Avold, in Moselle, 45 km from Metz. Olivier SILVESTRI Architecture Studio serves individuals and professionals to build, expand, transform and arrange. 

21 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Vertical expension

New Build

7 services

Design / Plans

Planning permission application

3 achievements

Architect page

Pérez architecture enhances the existing through a bioclimatic approach, integrating new construction, renovation and interior design. The agency favors local materials, artisanal know-how and energy performance, thus contributing to a more sustainable sector that respects the environment and users.

18 property type

Single-Family Homes

Passive House / Eco-friendly

9 type of work

Vertical expension

New Build

6 services

Design / Plans

Planning permission application

1 achievement

Architect page

It is also possible to propose a partial mission which is limited to the general design and the administrative request.

Aside from the advisory visit, the first appointment is free of charge.

18 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Vertical expension

New Build

5 services

Design / Plans

Planning permission application

3 achievements

Architect page

Open to all types of programs since its creation in 1998, ALFA Architecture has constantly evolved around one guiding principle: the thoughtful design of spaces for living. Driven by a pursuit of clarity and purpose, each project becomes an exploration of the firm’s core concerns — the environment, humanity, light, materials, and landscape.

21 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Vertical expension

New Build

6 services

Design / Plans

Planning permission application

Together
we can define your project

Make a free appointment with our specialist advisor.

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Located in Béthune, in the heart of the Pas-de-Calais region, AR CARRé Architectes. For over twenty years, our firm has developed a demanding and sensitive approach to architecture. Active throughout the Hauts-de-France region, we work on a wide variety of public and private projects: individual and collective housing, public facilities, tertiary buildings, extensions, and renovation projects. Our mission is to design sustainable, functional, and aesthetic spaces that faithfully express our clients’ expectations while respecting the unique character of each site. Every project is a meeting point — a dialogue between the client, the design team, and all those involved in the construction process. This close collaboration ensures a bespoke architectural solution, tailored to budget, schedule, and urban context.

21 property type

Single-Family Homes

Passive House / Eco-friendly

9 type of work

Vertical expension

New Build

4 services

Design / Plans

Planning permission application

1 achievement

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

10 type of work

Vertical expension

New Build

3 services

Planning permission application

Construction Management

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

Vertical expension

New Build

7 services

Design / Plans

Planning permission application

6 achievements

Architect page

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

Vertical expension

New Build

7 services

Design / Plans

Planning permission application

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A D.P.L.G.-qualified architect, Ludovic Le Gall approaches his work with a strong focus on listening, creativity and finding the right balance between each project, its surroundings and his clients’ expectations. He graduated from the École Nationale Supérieure d’Architecture de Versailles in June 2000 and has developed broad experience in the design and delivery of buildings, particularly in the fields of single-family homes, residential buildings, restaurants and offices.

27 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Vertical expension

New Build

7 services

Design / Plans

Planning permission application

2 achievements

Architect page

Savey Architecture – Renovation – Vertical Extensions – Extensions

Have an idea or a project in mind? Get in touch with us by email or phone for an initial discussion. Together, we can define your needs and arrange a first meeting or prepare a tailor-made quote.

19 property type

Single-Family Homes

Passive House / Eco-friendly

16 type of work

Vertical expension

New Build

7 services

Design / Plans

Planning permission application

2 achievements

Architect page

Over 10 years of experience dedicated to your projects. Led by a qualified architect (DPLG, HMONP), ARQ Architecte designs and manages construction, renovation, extension and additional-storey projects across Alsace and Lorraine, from detached houses to apartment buildings, offices and commercial premises. One dedicated point of contact, from initial design through to construction.

25 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Vertical expension

New Build

7 services

Design / Plans

Planning permission application

5 achievements

Architect page

RAPHAËL SAMUEL ARCHITECTURE is a young and dynamic firm with 12 years of experience. Its primary goal is to place its client at the center of the project and create a unique solution for them!

26 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Vertical expension

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

Independent architect, Hadrien Glotin designs "eco-designed" projects by favoring bio-sourced materials. He often works in conjunction with the Architects of Buildings of France and also creates 3D images and videos for construction professionals.

19 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Vertical expension

New Build

3 services

Design / Plans

Planning permission application

Architect page

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

10 type of work

Vertical expension

New Build

4 services

Design / Plans

Planning permission application

4 achievements

Clémence Doyon is an architect and manager of Presles Architecture. She assists you with your construction or renovation projects for your main or secondary home and with the completion of work in your offices or industry.

19 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Vertical expension

New Build

7 services

Design / Plans

Planning permission application

2 achievements

Based in Provence, Kroquis Architecture designs bespoke, sustainable projects that are rooted in their environment. Attentive, combining rigor, common sense, and good humor, the studio handles each project with care and simplicity.

16 property type

Single-Family Homes

Passive House / Eco-friendly

17 type of work

Vertical expension

New Build

6 services

Design / Plans

Planning permission application