The Journal · July 2, 2026 · 8 min read · By Émilie, Head of Content

How much does renovating a Haussmann apartment really cost?

It is the first question every client asks — and the honest answer is: it depends on the ambition. Here are the real ranges we see in Paris, line item by line item, and what makes the budget move.

Price ranges per m².

In Paris, budgets for a Haussmann apartment fall into three broad families depending on how deep the intervention goes:

Level of interventionTypical budgetWhat it covers
Refresh€1,000 – 1,200/m²Paint, floors, partial electrical work, simple bathroom
Full quality renovation€1,800 – 2,500/m²New room layout, plumbing and electrical redone, kitchen and bathrooms, quality finishes
High-end renovation€2,500/m² and upNoble materials, custom millwork, restoration of original mouldings and parquet, home automation

At W.A.R.D, a quality residential renovation averages around €2,000/m² (observed range: €1,800 to €2,500/m²) — the level that reconciles exacting finishes with budget control. A 150 m² apartment therefore represents a works budget in the region of €270,000 to €375,000, excluding furniture.

How the budget breaks down, line by line.

Rather than adding up itemised prices — which vary from one project to the next — the most telling view is how a full renovation budget is actually distributed. On our Haussmann projects, the typical breakdown looks like this:

Line itemIndicative share of budgetWhat it covers
Demolition and strip-out5 – 10%Removing partitions, floors and fittings, clearing rubble
Structure and shell5 – 15%Floor reinforcement, openings in load-bearing walls, structural repairs
Services (plumbing, electrical, ventilation)20 – 25%Complete renewal of installations, consumer unit, risers, ventilation
Plastering, partitions, suspended ceilings10 – 15%New room layout, linings, staff plaster, cornices
Kitchen and bathrooms15 – 20%Equipment, wall tiling, sanitaryware, taps and fittings
Surfaces and finishes15 – 20%Parquet, paint, natural stone, wallpaper
Custom millwork10 – 20%Walk-in wardrobes, bookcases, designed joinery

These proportions are orders of magnitude — they deliberately overlap, because every project makes its own trade-offs. Above all, remember the lesson they carry: close to a quarter of the budget goes into the services — the part you never see in the photos. It is the foundation of a renovation that lasts; it is also the first line that over-optimistic quotes leave out.

These proportions hold for an apartment. On a complete heritage property — grand staircase, façades, roof, garden — the balance shifts markedly: we set it out on our page devoted to hôtel particulier renovation in Paris.

What really moves the budget.

Two apartments that look identical on paper can have budgets that differ by a factor of two. The real drivers:

The classic trap: comparing quotes that do not cover the same scope. A quote 20% cheaper that excludes project management, structural repairs "to be assessed" and finishes almost always ends up costing more.

The mistakes that make budgets explode.

Beyond the surprises old buildings hold, most of the overruns we see have avoidable causes. The five most frequent:

What makes Haussmann buildings different.

Renovating a Haussmann apartment is not renovating a modern open floor plate. Three points of attention we encounter on every project:

Three typical budgets, calculated from our ranges.

To make these ranges concrete, here are three scenarios calculated simply — surface × price per m²:

These calculations do not replace a proper costing — they give the right order of magnitude to frame an apartment search or a financing plan. For an apartment renovation in Paris, it is the most honest starting point for a conversation that we know.

What timeline to expect?

For a full renovation in Paris: allow 2 to 3 months of design (surveys, plans, material selection, consultations) then 4 to 7 months of works depending on the surface. Our recent projects: 5 months for 145 m² (Le St Georges, Paris 9th), 10 months for a heavy transformation of 227 m² (Le Trocadéro, Paris 16th).

How to protect your budget.

A project of this kind? Tell us about it in a few lines: we come back to you within 48 hours with a first reading — scope, order of magnitude, realistic timeline.

The checklist before signing a quote.

Before committing your signature — and your budget — verify these eight points:

A serious general contractor ticks these eight boxes by design: it is the very point of the model.

Three frequent questions.

Can you renovate a Haussmann apartment on a budget of €1,000/m²?

In an apartment that is structurally sound, with healthy services and no change of layout, you sit between a refresh (€1,000 – 1,200/m²) and a full renovation (€1,800 – 2,500/m²): it is workable by concentrating the effort on a few rooms. As soon as the plumbing, the electrics or the layout need redoing, a full renovation is unavoidable — and so is its budget.

Does the price per m² fall as the surface grows?

A little: fixed costs (site set-up, studies) are spread over more square metres. But the effect is marginal compared with the level of finish — a large apartment at a high-end specification will always cost more per m² than a small one at a standard level.

How do I get a reliable costing quickly?

Tell us about your project — surface, condition, ambition — and we will come back to you within 48 hours with a first estimate. For an immediate order of magnitude, request an estimate and we will frame the range with you.

Every project deserves a precise answer rather than an average: tell us about yours, and we will come back to you within 48 hours with a first estimate.

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