Apartment renovation in Versailles.

Versailles, a building stock of its own.

In Versailles, an apartment renovation can concern an old building in the historic districts, Notre-Dame and Saint-Louis, as well as a more recent building or a duplex. Each building has its own logic: type of floors, ceiling heights, routing of services, features to preserve. A successful renovation starts by reading it, before drawing anything.

Floor area, on the other hand, says little. What drives the length and complexity of a project is the number of interfaces: between rooms, between levels and between trades. Our Versailles project shows it.

Our reference: Le Marquis.

In Versailles, we fully renovated a 130 m² duplex across every trade: demolition, structural works, plastering, electrics, plumbing, painting, floor finishes. Twelve trades over six months, where an apartment twice the size, Le Vénitien, needed nine over seven months. A second level changes everything:

• Every trade works twice, on the lower level then the upper one: two mobilisations, two set-ups.
• The staircase sets the order of works: it is both a piece to build and the only access upstairs.
• Services cross a floor: each crossing is a technical point, and an acoustic one.
• Acoustics become an internal matter: footsteps, stairs and drainage noise between two levels of the same household.

Our rule on every duplex: finalise the design of both levels together, before starting anything. The full story is in our Le Marquis case study, and the photographs on the project page.

What changes a project in Versailles.

• Planning rules. They are the same in nature as in Paris: prior declaration or building permit depending on the works, and general-meeting approval as soon as a common part is affected.
• Structure. As soon as a project touches a floor, an opening in a floor or a load-bearing opening, it changes category: prior study, processing time and often the co-ownership's approval. These decisions are made in the first month of a project, never the fourth.
• Heritage. Part of Versailles lies within protected perimeters: works visible from outside (windows, façade, roof) may require the opinion of the Architecte des Bâtiments de France. For interior renovation, the constraint generally does not apply, but it is checked before pricing.
• Logistics. Access, parking for deliveries and permitted hours govern the supply rhythm, and therefore the schedule. It appears on no quotation; we plan for it from the technical visit.

Our guide to renovation permits details these formalities and their timelines.

The budget, per square metre.

Our prices are per square metre, excluding custom millwork (+€500 to €700/m² for a complete project, €600/m² on average) and design. Here is what our 2026 grid gives for two sizes; these are worked examples, not the budget of an actual project. On a duplex, the ratio tends towards the top of the range: the double mobilisation of trades, the staircase and the intermediate floor do not dilute into the floor area.

For a range tailored to your apartment, our estimate form calculates it in four questions. The item-by-item breakdown is in our article on renovation costs.

Timelines, committed.

Allow two to three months of design, then four to eight months of works depending on size and scope. Custom pieces take eight to sixteen weeks to make and are ordered early. Le Marquis, 130 m² over two levels, took six months. Our guide to how long an apartment renovation takes details each stage.

One contract, one responsibility.

W.A.R.D is a general contractor: design and execution under one contract, every trade run by a single lead, and our own 10-year liability insurance of €5,000,000. You have one contact, one price and one date. If you already work with an architect, we execute their drawings to the last detail — that is the purpose of our architects' page.

We work in Versailles and throughout the Île-de-France region. For a house, see our page on house renovation in the Île-de-France; for Paris, the one on apartment renovation in Paris; and all our projects.