546 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.

Architecte in Paris 75017

Interia Construction designs and transforms high-end spaces in Paris and the Île-de-France region: first through architecture and design, then through execution, with the same team and the same level of excellence. Created in 2019 and led by three complementary partners, this human-sized structure places high standards, flexibility and proximity at the heart of every project.

24 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

15 type of work

Vertical expension

New Build

Renovation

7 services

Design / Plans

Planning permission application

Construction Management

Architecte in Paris 75020

Effe Architecture designs and renovates residential, hospitality, and commercial spaces with particular attention to context, users, and quality of life. The agency offers comprehensive and rigorous support, ideal for clients seeking a professional, human, and highly personalized approach.

19 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

7 type of work

Vertical expension

New Build

Renovation

3 services

Design / Plans

Planning permission application

Construction Management

Architecte in Bordeaux 33000

A committed architect and landscape designer, Grégory CAZEAUX supports his clients at every stage of their renovation and construction projects, with a tailor-made approach combining architecture and landscape. He transforms existing spaces into optimized, bright and sustainable environments, adapted to contemporary uses and lifestyles.

10 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

12 type of work

Vertical expension

Renovation

Extension

5 services

Design / Plans

Planning permission application

Construction Management

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Architecte in Paris 75016

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

Chalets / Wooden Houses

14 type of work

Vertical expension

New Build

Renovation

5 services

Design / Plans

Planning permission application

Construction Management

Architecte in Bastia 20200

IMÉ is an architectural practice founded by Émilie CALVAS, whose work is deeply rooted in the landscapes of Provence and Corsica, on both shores of the Mediterranean. Every project begins with a dialogue between a place, its history, and the people who inhabit it. Through a sensitive, context-driven approach and personalised guidance, the studio reveals the potential of existing buildings while designing thoughtful renovations, transformations, and new constructions that respect both their environment and local heritage.

22 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

15 type of work

Vertical expension

New Build

Renovation

7 services

Design / Plans

Planning permission application

Construction Management

Architecte in Frontignan 34110

Gilbert PORZIO is an experienced architect with more than 35 years of practice, working on projects ranging from private homes and residential developments to large-scale property and specialist commissions. His years in New York City shaped a rigorous approach to design, combining attention to detail, budget control, technical expertise, and architecture tailored to each client's needs. Passionate about his profession, he is committed to creating projects that are both functional and aesthetically refined.

25 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

12 type of work

Vertical expension

New Build

Renovation

6 services

Design / Plans

Planning permission application

Construction Management

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Architecte in Ciboure 64500

Based in Ciboure, in the French Basque Country, Atelier Ondra is an architectural practice that develops projects rooted in their context, existing buildings, and everyday uses. Combining research, innovation, design, and architecture, the studio creates thoughtful, balanced, and sustainable solutions for residential, commercial, and property development projects, including renovations, new constructions, and adaptive reuse.

24 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

12 type of work

Vertical expension

New Build

Renovation

6 services

Design / Plans

Planning permission application

Construction Management

Architecte in Adissan 34230

An Architect's degree supplemented by 25 years of experience in France and abroad. Liberal practice enriched by annual continuing education, experience in teaching architectural projects and experience in the field of heritage architecture.

14 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

9 type of work

Vertical expension

New Build

Renovation

5 services

Design / Plans

Planning permission application

Construction Management

Architecte in Paris 75010

Oïkos Architectes, specializing in renovations, extensions and elevations, advocates pragmatic, aesthetic and sustainable architecture. The agency supports individuals with a tailor-made, responsible approach, adapted to each living space, and this, with complete peace of mind.

9 property type

Single-Family Homes

Passive House / Eco-friendly

Smart Homes

8 type of work

Vertical expension

Renovation

Energy renovation

5 services

Design / Plans

Planning permission application

Construction Management

Architecte in Saint-Étienne 42000

For nearly 30 years, YO_Architecture has been designing housing projects, sports facilities, schools, all types of public-access buildings, public spaces, as well as urban studies and planning.

A motivated and responsive team, fully committed to the many challenges of development and construction.

21 property type

Single-Family Homes

Passive House / Eco-friendly

Chalets / Wooden Houses

13 type of work

Vertical expension

New Build

Renovation

6 services

Design / Plans

Planning permission application

Construction Management