579 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.

Graduated with a Master’s degree in Architecture from the Politecnico di Milano and an engineering degree from the École Spéciale des Travaux Publics, du Bâtiment et de l’Industrie (ESTP), Charles-Emile PERCHAUD obtained his authorization to practice as an independent project manager in 2018 at the École Nationale Supérieure d’Architecture de Versailles. He has been registered with the Île-de-France Order of Architects since 2024, alongside the creation of his firm. After ten years of experience in architectural practices working on large-scale tertiary, institutional, and interior architecture projects, he founded Atelier Perchaud to offer an expanded response to today’s and tomorrow’s construction and renovation needs.

22 property type

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Passive House / Eco-friendly

13 type of work

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6 services

Design / Plans

Planning permission application

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With over 30 years of experience in project management for both public and private commissions, Jean-François GEORGEL specializes in renovation, transformation of historic buildings, and extensions.
He enhances existing structures to create elegant, functional, and sustainable spaces in harmony with your aspirations.

18 property type

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Passive House / Eco-friendly

13 type of work

Vertical expension

New Build

6 services

Design / Plans

Planning permission application

1 achievement

ALMA (Atelier Léa Monestier Architecte) is an architectural practice operating throughout the Nouvelle-Aquitaine region. Through a relationship built on trust, collaboration, and attentive listening, the agency develops tailored solutions that transform its clients’ ambitions into sustainable and meaningful spaces. Combining architectural expertise, design, and project management, ALMA creates places that are functional, sensitive, and built to stand the test of time.

17 property type

Single-Family Homes

Chalets / Wooden Houses

10 type of work

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New Build

4 services

Design / Plans

Planning permission application

3 achievements

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A construction project is built upon close collaboration between you and the Hello Architecture & Urbanisme team. The agency supports you through attentive listening in order to understand your needs, while drawing on its architectural sensitivity and expertise to reveal the full potential of each place within a controlled framework and a relationship of trust.

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11 type of work

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7 services

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Houzali MDALLAH, founder and director of MHB Architecte, designs tailor-made projects that truly reflect your identity. Naturally contemplative, she imagines noble and elegant spaces oriented toward the outdoors. Convinced that even the smallest surface deserves architectural attention, she encourages her clients to seek professional guidance regardless of the project’s scale.

24 property type

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Passive House / Eco-friendly

8 type of work

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2 services

Design / Plans

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1 achievement

The Barthélémy LAIGNEL Architecture Agency has been based in Courseulles-sur-Mer since 2019. It designs and supports both new-build and renovation projects, and has gradually specialized in architect-designed houses and villas. The agency works with private clients, developers, and public project owners, with rigor, clarity, and high architectural standards.

19 property type

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11 type of work

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5 services

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3 achievements

The GL+ Architecture agency combines creativity and professionalism to succeed in all its clients' projects. The agency offers tailor-made solutions and ensures compliance with budgets and deadlines, offering complete support with complete confidence.

25 property type

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17 type of work

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6 services

Design / Plans

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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

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13 type of work

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7 services

Design / Plans

Planning permission application

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Young architect, rigorous and attentive, I will know how to adapt to your desires and guide you to create your ideal living space.

15 property type

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12 type of work

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New Build

4 services

Design / Plans

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We do not limit ourselves to imposing a vision, but work hand in hand with the client to understand their expectations, constraints and aspirations. This dialogue makes it possible to integrate practical, economic and emotional aspects of the project.

13 property type

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Smart Homes

13 type of work

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5 services

Design / Plans

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3 achievements

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Through a multiple approach to architectural practice, Hugues Laveder, graduate of the National School of Architecture of Lyon, master's degree in sustainable development, today continues his professional practice, alone or in a team and supports you in the development of your projects.

16 property type

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Passive House / Eco-friendly

12 type of work

Vertical expension

New Build

5 services

Design / Plans

Planning permission application

1 achievement

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Architecture Concept is an innovative company specializing in the design and realization of architectural projects. Located in Douvaine, it is committed to providing tailor-made solutions that meet the specific needs of each client, respecting environmental and economic standards.

20 property type

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Passive House / Eco-friendly

11 type of work

Vertical expension

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6 services

Design / Plans

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Camille Hovsepian, a graduate of ENSAV, founded Lumii Architecture in 2023 after more than ten years of experience in Paris. He offers an architecture that is creative, rigorous, and human, attentive to both client needs and the surrounding environment.

8 property type

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Passive House / Eco-friendly

12 type of work

Vertical expension

New Build

6 services

Design / Plans

Planning permission application

A synergy of expertise to support you in all your architectural and interior architecture projects. A multidisciplinary team at your service to develop your projects and ensure smooth, well-coordinated site management

13 property type

Single-Family Homes

Passive House / Eco-friendly

10 type of work

Vertical expension

New Build

5 services

Design / Plans

Planning permission application

4 achievements

We execute most of our projects as a full mission to ensure the joint success of the project, making the best decisions throughout the technical development and site supervision stages.

23 property type

Single-Family Homes

Passive House / Eco-friendly

15 type of work

Vertical expension

New Build

6 services

Design / Plans

Planning permission application

1 achievement

S. BORDIER is a versatile architectural agency that will accompany you from the design of your project to the follow-up of the work. These architects offer you a professional follow-up at each stage of your project: from the first sketch to the acceptance of the work.

16 property type

Single-Family Homes

Chalets / Wooden Houses

11 type of work

Vertical expension

New Build

4 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

4 achievements

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Studio mx is an architectural firm based in Morlaix and co-founded by Luca Chanteau Eminenti and Guillaume Lachat. With a particular focus on the implementation of materials, studio mx embraces an architecture of cultural continuity .

19 property type

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Passive House / Eco-friendly

10 type of work

Vertical expension

New Build

6 services

Design / Plans

Planning permission application

3 achievements

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APMH ARCHITECTURE is registered with the Order of Architects of the Centre-Val de Loire region. It is based in the 28 department, near Chartres.

It operates over a wide area, depending on the type of project.

8 property type

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Apartment

9 type of work

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New Build

3 services

Design / Plans

Planning permission application

The agency develops creative, functional architecture that respects Breton heritage. Based in Morbihan, it combines a humanist approach, vernacular reinterpretation, landscape integration, and budgetary control, with constant attention to the environment, local culture, and customs.

17 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Vertical expension

New Build

6 services

Design / Plans

Planning permission application

4 achievements

23 years of experience in single-family homes, offices, commercial buildings, and public buildings. Experience at all levels of architectural practice, from design to completion, both in-house and on-site.

An architect to work with you on your project.

19 property type

Single-Family Homes

Chalets / Wooden Houses

9 type of work

Vertical expension

New Build

6 services

Design / Plans

Planning permission application