Buyer's guide · new-build market · Walloon Brabant

Buying a new-build apartment in Chastre: market, prices, districts (2026)

Hard data on the new-build apartment market in Chastre, districts and villages where it pays to invest, active developers, local tax specifics and pitfalls at reception.

Sources: Statbel · Belgian Notaries · IWEPS · Q4 2024 data updated 05/2026
Chastre market snapshot
2 850 €/m²
Average new-build apartment price · Q4 2024
3-year change
+11%
Average absorption
12 months
New-build stock
180 units
3-year price trend

New-build apartment €/m² in Chastre rose +11% since 2022.

A rural Walloon Brabant municipality, Chastre benefits from the RER effect (Chastre-Blanmont station) and Brussels residential pressure. New-build remains scarce (180 units) but sells quickly, mainly through small village-centre programmes.

€/m² · new-build apartment · Chastre
2 570 €
2 700 €
2 790 €
2 850 €
2 940 €
2022
2023
2024
2025
2026 e.
Quartiers recommandés

Où acheter du neuf à Chastre en 2026 ? Notre lecture.

Chastre centre

Chastre-Centre

Premium
€2,960/m²
Village core, RER station, schools. Strong family demand.
Blanmont Chastre

Blanmont

Connected
€2,880/m²
Residential village, direct station access. Small new-build collectives.
Cortil-Noirmont

Cortil-Noirmont

Emerging
€2,720/m²
Rural section, emerging new-build projects, countryside setting.
Saint-Géry Chastre

Saint-Géry

Residential
€2,840/m²
Pavilion section, primary schools nearby.
Active developers

The 6 developers delivering new-build in Chastre in 2026.

Non-exhaustive list · factual information · we have no commercial ties with these players (deliberately so: our independence is our trade).

Developer
Flagship project
Type
Delivery
Developer Chastre Promotion
Flagship project Résidence du Village
Type 18 apts
Delivery 2026-Q4
Developer BW Habitat Sud
Flagship project Les Jardins de Blanmont
Type 14 apts
Delivery 2026-Q3
Developer Brabant Construct
Flagship project Cortil Park
Type 12 apts
Delivery 2027-Q1
Developer Wallonia Build
Flagship project Saint-Géry Résidence
Type 16 apts
Delivery 2026-Q4
Developer Petit Brabant Bâti
Flagship project Hameau de Gentinnes
Type 10 apts
Delivery 2026-Q3
Developer BW Real Estate
Flagship project Project Noirmont
Type 11 apts
Delivery 2027-Q2
Local taxation

Chastre-specific premiums and incentives.

  • Walloon energy premium
    Up to €2,000 for heat pump + roof insulation (stackable depending on income).
  • Registration duty reduction
    Reduced 3% rate for EPC A and modest dwelling (≤ 200 m² habitable).
  • Wallonia tax shelter
    5-year income-tax reduction for new-build buy-to-let (€21,400 fiscal cap).
  • Wallonia renovation premium
    Stackable with regional aid for deep renovations — for VEFA conversions.
Chastre pitfall to avoid

The RGBSR and long permit timelines.

Chastre lies in a RGBSR zone (General Regulation for Rural Built Sites). Materials, massing and colours are imposed. Permit timelines are long (12-18 months) and appeals frequent. Check that the permit is clear before any post-deed payment.

Témoignage acheteur
« We avoided a programme whose permit was not clear — site frozen for 18 months according to neighbours. »
Élise Vandenberghe · off-plan buyer · Chastre
From purchase to reception

Buying in Chastre?

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