575 architects Vertical expension

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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.

Architect page

Atelier R2 is a multidisciplinary architectural agency working for individuals and professionals in various fields of housing, tertiary, medical, photovoltaic energy, etc.

11 property type

Single-Family Homes

Apartment

10 type of work

Vertical expension

New Build

2 services

Design / Plans

Planning permission application

3 achievements

The TLF architects agency is a Bordeaux agency existing since 2016. Made up of five members including the four associated architects, they design contemporary architecture attentive to detail, with a refined and functional design.

21 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Vertical expension

New Build

6 services

Design / Plans

Planning permission application

3 achievements

Whether your project is of a few m², whether it is a renovation project, the construction of an individual house, or a larger project, the agency supports you to find a fair response adapted to your needs. problematic.

16 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Vertical expension

New Build

5 services

Design / Plans

Planning permission application

1 achievement

Architect page

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

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Vertical expension

New Build

6 services

Design / Plans

Planning permission application

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On trouve l'architecte pour vous

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

Vertical expension

New Build

6 services

Design / Plans

Planning permission application

1 achievement

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

Single-Family Homes

Chalets / Wooden Houses

12 type of work

Vertical expension

New Build

4 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

3 achievements

RELEV is a joyful and committed heritage architecture firm, specializing in the custom restoration of historic buildings. We work by hand, with you, to create something beautiful, fair, and meaningful.

10 property type

Single-Family Homes

Passive House / Eco-friendly

9 type of work

Vertical expension

Renovation

4 services

Design / Plans

Planning permission application

Together
we can define your project

Make a free appointment with our specialist advisor.

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On trouve l'architecte pour vous

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

Vertical expension

New Build

5 services

Design / Plans

Planning permission application

3 achievements

The François-Xavier Poudroux Architecte studio, founded in 2019, approaches landscapes in their capable depth with the themes of atmospheres, embodied materialities and continuum in the built landscape as study satellites.

9 property type

Single-Family Homes

Apartment

5 type of work

Vertical expension

New Build

5 services

Design / Plans

Planning permission application

Founded in 2004, AEDIFI Architecture brings together architects and an interior designer united by a single goal: to create unique, user-centered projects. The agency supports both individuals and professionals in construction, renovation, and interior design, with a tailored, attentive, and creative approach — from concept to completion.

16 property type

Single-Family Homes

Passive House / Eco-friendly

10 type of work

Vertical expension

New Build

4 services

Design / Plans

Planning permission application

3 achievements

Architect page

ATELIER BONOBO is an architecture studio based between Lisieux and Orbec, working on all types of projects — new construction, renovation, and rehabilitation.
Its architect approaches each project with a pragmatic mindset, addressing the complex challenges inherent in architectural creation while striving to bring sensitivity and uniqueness to every design.

20 property type

Single-Family Homes

Passive House / Eco-friendly

13 type of work

Vertical expension

New Build

5 services

Design / Plans

Planning permission application

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On trouve l'architecte pour vous

Ahora Architectes was born from the meeting of an architect and a construction engineer who combine their expertise in service of your building project, drawing on their own experience as well as that of their many partners (cost consultants, engineering offices, inspection bodies, health and safety coordinators, etc.).

10 property type

Retail

Hotels - Restaurants

12 type of work

Vertical expension

New Build

6 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

Vertical expension

New Build

5 services

Design / Plans

Planning permission application

1 achievement

Architect page

Independent architect, Mélanie IBANEZ FRAILE develops a practice focused on projects with a strong ecological dimension, in both renovation and construction, for housing, public-access buildings, and professional projects. She adopts a bioclimatic and sober approach, prioritizing user comfort, energy performance, and material reuse. People and dialogue are at the heart of my approach: each project is based on attentive listening to needs and uses. Mélanie pays particular attention to the transformation of existing buildings and the uniqueness of places, in order to design durable, coherent spaces adapted to their environment.

17 property type

Single-Family Homes

Passive House / Eco-friendly

11 type of work

Vertical expension

New Build

6 services

Design / Plans

Planning permission application

Architect page

Based in Sarrebourg, the Lorenz-Valentin architecture firm designs bespoke contemporary projects ranging from private housing to public buildings. Attentive to its clients’ needs, the firm combines creativity, functionality and sustainability to create bright, harmonious spaces that are perfectly integrated into their environment.

22 property type

Single-Family Homes

Chalets / Wooden Houses

13 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.

Request a meeting
On trouve l'architecte pour vous

CabCab Architecture is a studio founded in Montpellier in 2012, rooted in the Mediterranean basin. The practice develops site-specific architecture and design objects, attentive to climate, uses, and resources, drawing from local craftsmanship and vernacular cultures to create contemporary responses for housing, hospitality, public spaces, and shared environments.

Balancing restraint, constructive rigor, and contextual intelligence, its approach seeks to create forms that are accurate, sustainable, and meaningful. It conceives spaces as living relationships between places, uses, and the people who inhabit them.

18 property type

Single-Family Homes

Passive House / Eco-friendly

17 type of work

Vertical expension

New Build

5 services

Design / Plans

Planning permission application

11 achievements

For more than 20 years, Sandrine TISSOT has been turning ideas into tangible architectural projects. Attentive to her clients’ needs, she supports local authorities, businesses, and private individuals in the design and development of bespoke spaces that combine creativity, functionality, and sustainability. Every project is carefully crafted to respond to real-life uses, enhance its surroundings, and provide a unique architectural solution tailored to each client’s expectations and constraints.

26 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Vertical expension

New Build

5 services

Design / Plans

Planning permission application

12 achievements

Architect page

26 property type

Single-Family Homes

Passive House / Eco-friendly

12 type of work

Vertical expension

New Build

7 services

Design / Plans

Planning permission application

1 achievement

Founded in 2026 in Niherne, France, ATELIER CL’archi supports private clients, local authorities and professionals with their construction, renovation and refurbishment projects. The practice champions a locally rooted, functional and sustainable approach to architecture, shaped through dialogue with its users and designed in harmony with its surrounding environment.

22 property type

Single-Family Homes

Passive House / Eco-friendly

14 type of work

Vertical expension

New Build

7 services

Design / Plans

Planning permission application