Facade renovation in Paris: rules and prices

Why renovate your facade in Paris?

In Paris, the aesthetics of buildings are an integral part of historical heritage. Beyond visual appearance, facade renovation serves to preserve the building's structural integrity against urban pollution and weather. It is also an opportunity to improve external thermal insulation (ETI).

Legal obligations

Parisian legislation is strict:

• 10-year rule: The French Building Code requires Parisian property owners to conduct a facade renovation every 10 years.
• City Hall injunction: In case of non-compliance, Paris City Hall can issue an injunction, followed by mandatory works at the owner's expense.
• Prior Declaration (DP): Any modification to the exterior requires a Prior Declaration, often subject to validation by the Architects of French Buildings (ABF) in protected areas.

The main steps of a successful facade renovation

1. Diagnosis: Identifying cracks, moisture, peeling plaster, and testing for lead (in old buildings).
2. Cleaning and preparation: High-pressure washing, micro-sandblasting suited to fragile Parisian stone.
3. Repairs: Re-pointing, crack sealing, and applying anti-fungal treatments.
4. Finishing: Applying protective render, water-repellent paint, or waterproof coatings.

Focus: Facades and Balcony Waterproofing

In Paris, balconies and cornices are often the primary source of water infiltration on a facade. A comprehensive renovation must include repairing the waterproofing on continuous balconies and window sills.

At FDM ENERGIE, we use Liquid Waterproofing Systems (SEL) that treat balconies continuously without visible joints, ensuring perfect waterproofing while respecting Haussmannian aesthetics.

Financial aid in 2026

• MaPrimeRénov': For works including energy gains (e.g., external insulation).
• Eco-PTZ: Zero-interest loan for global renovation works.
• Local grants: The City of Paris offers subsidies via the "Éco-Rénovons Paris" initiative.

Contact FDM ENERGIE for a technical appraisal of your facade and a custom quote compliant with Parisian urban planning standards.