Leading Architectural Company in Paris

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House Renovation and Restoration Services in Paris

TH Architecture is recognised for its specialist experience in renovation, restoration, and new build projects across France, particularly in complex planning and heritage contexts.

Renovating a house in Paris often involves specific planning constraints, older construction methods, and proximity to protected heritage zones. Our role is to manage these realities clearly and efficiently, from early feasibility through to completion.

We provide the full suite of architectural services required from pre purchase and inception to completion and beyond.

House Renovation Design

Our Services

House Restoration & Period Property Renovation

Home Extensions & Loft Conversions

Planning Permission & Approvals

On-Site Architectural Supervision

Want To Know More About Our Work?

Why Choose THA?

25+ Years of Practice

Trusted for over two decades, THA has successfully delivered designs attuned to the client’s wishes, conceived to integrate into the surrounding cultural and natural environments.

Client-Focused

From tiny houses, eco-lodges, new build houses and renovations to chateaux restorations and transformations into energy positive buildings. All our designs achieve a new level of natural comfort, beyond the contemporary

Specialists in ecological design and construction

Through experience, THA has refined a series of natural systems that places the client at the heart of the project. Here they can make informed decisions every step of the way, to ensure the project is tailored to their own esoteric aspirations

Our Process

A simple and transparent process designed around your project.

Initial Consultation

FREE Quote

Application

We review your project’s feasibility, planning constraints, budget scope, and timelines. This gives you a clear and practical understanding of what is possible before moving forward.

Based on the initial assessment, we provide a transparent outline of professional fees and project scope. This allows you to evaluate costs with clarity and no obligation.

Once approved, we prepare and manage the planning application, working closely with local authorities to ensure compliance and a smooth approval process.

Some Of Our Recent Projects

Nanhill Drive, Woodhouse Eaves

Kichen extension

House in medieval village

Complete Renovation

Château Nouvelle-Aquitaine

Château Val de Loire

Planning Permission for House Renovation in Paris

Many renovation projects in Paris require planning approval, particularly when works involve structural changes, extensions, or external alterations.

TH Architecture manages:

• Planning and regulatory submissions

• Architectural drawings and documentation

• Liaison with local planning departments

• Compliance with regional and heritage rules

This structured approach ensures renovation work proceeds correctly and avoids unnecessary administrative issues.

Forbes

Timothy Harris Architecte : architecture durable et sur-mesure

Entre tradition et innovation, Timothy Harris réinvente l’architecture contemporaine en conciliant fonctionnalité, durabilité et esthétique. À la tête de son cabinet THA, il place le client au cœur du processus créatif pour concevoir des projets uniques, respectueux de leur environnement et résolument tournés vers l’avenir.

As Featured In

Marie Claire Maison

THA-France : inscrire l’architecture dans son contexte

Depuis 25 ans, Timothy Harris, dirigeant du cabinet d’architecte THA-France, conçoit des projets à la fois ancrés dans la tradition et résolument tournés vers l’avenir.

Renovation Costs in Paris : What Influences the Budget

House renovation costs in the Paris depend on several factors, including property condition, scope of work, and regulatory requirements.

Costs are commonly influenced by:

• Structural repairs and reinforcement

• Roof and masonry work

• Insulation and energy upgrades

• Planning and architectural fees

A professional feasibility assessment provides clarity on budget and scope before work begins.

Discover what our clients think about our service

"A flexible multi skilled architect is the key to a successful build in France. I've been on site with Tim and the build team or at his house and the amount of day to day decisioning he filters (and does much better than you) is staggering."

"We worked with Tim on the refurbishment and extension of our home in the Aude. He provided professional advice on the planning of the work and dealt successfully with the Mairie. We were very pleased with the management of the contract, and the results have been admired by family and friends."

Leah & Carl F.

★★★★★

★★★★★

Our Happy Clients

Anita & David P.

THA-FRANCE

THA-UK

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