Villa renovation in Woluwe-Saint-Lambert

Our villa renovation services

–  Complete renovation of the roof and exterior facade

–  Comprehensive insulation of the building, including walls, roof, and floors

–  Replacement of frames and improvement of energy performance

–  Complete interior renovation, including kitchen and bathrooms

–  Outdoor fit-out, including terraces and gardens

–  Bringing electrical and heating installations up to standard

The most common renovation areas for a villa

Certain areas are consistently addressed in villa renovation projects in Woluwe-Saint-Lambert, due to the average age of the buildings concerned.

Facade and exterior joinery

Facade renovation, treatment of rising damp, and replacement of original frames often constitute the first area addressed, with an immediate visual and energy impact on the entire building.

Roof and framework

A roof over thirty years old deserves a thorough inspection before any other renovation project, as the framework and covering condition the feasibility of subsequent work such as a storey addition.

Interior fit-outs

Kitchens, bathrooms, and room distribution are often rethought to match current uses while preserving the original architectural elements that give the villa its charm.

VAT and grants for villa renovation in Brussels

The 6% VAT applies to renovation work in a property over 10 years old, subject to the usual conditions related to the registered contractor and detailed itemized billing.

The Renolution grants, which historically supported major insulation work, remain suspended for invoices from 2025 and 2026, a decision confirmed by the Brussels government in February 2026. The ECORENO credit, relaunched in early 2026 by the Housing Fund at a reduced rate, remains the most accessible financing option for this type of large-scale project, pending a future zero-interest loan system.

Why choose Avenir Rénovations for your villa?

Expertise in exceptional buildings

Villas require a different approach than a standard townhouse, both in terms of volumes to be addressed and respect for the architectural character of the original building.

A realistic and transparent phasing

We establish a phased renovation plan when the budget does not allow for everything to be undertaken at once, prioritizing structural elements before comfort fit-outs.

Seamless coordination between trades

Masonry, roofing, electricity, finishes: a single team oversees the entire project, avoiding delays and misunderstandings that often occur between multiple independent contractors.

Respect for the original architectural character

Each intervention is designed to integrate with the existing style of the villa rather than impose a standardized aesthetic, thus preserving the charm that justified the purchase of the property in the first place.

Permits and priorities when the budget is limited

The necessity of a permit depends on the scope of the work: a simple facelift generally does not require one, unlike an extension or a modification of the facade visible from the public road and neighboring streets. When the budget is limited, the building envelope, roofing, and facade should generally be prioritized, as it conditions energy performance and the protection of the structure before any interior fit-out. An old villa can actually achieve a good energy performance score with well-executed overall insulation: the starting gap is often greater than that of a townhouse, but the potential for improvement is also more significant once the work is completed in its entirety.

Phasing of the construction site and living on-site

Generally, expect four to eight months for a complete renovation, depending on the scope of the work and the number of elements addressed simultaneously or in successive phases. Renovating the entire villa at once is not necessary: a coherent phasing, starting with the exterior envelope, allows for spreading the investment while avoiding having to revisit elements already addressed in a later phase. Continuing to live in the villa during the work remains possible depending on the chosen phasing, especially if the exterior work is completed before the interior fit-outs; the schedule is adjusted to minimize disruption as much as possible.

Restore your villa to its former glory

A well-phased renovation sustainably enhances a villa, in Val Duchesse as well as in other residential neighborhoods of Woluwe-Saint-Lambert. The initial technical audit remains the essential first step before any commitment to work or any final costing.

Also discover our exterior wall renovation work or our roof raising solution to enlarge your villa.