Ottignies

Location

Belgium

Year of acquisition

2015

Former use

Illegal landfill

Size

8.0 Ha

Redevelopment

8,300 sqm

Program

Residential building

Status

Completed

A former landfill site in Ottignies, Belgium, was acquired from Aximmo in September 2015. The site is located 30 km south of Brussels in the province of Walloon Brabant, a privileged location just 5 minutes away from the university town of Louvain-la-Neuve.

The former landfill site has taken in large quantities of inert and household waste, some of which decomposes organically to generate residual biogas. The remediation strategy adopted by Ginkgo is based on ventilation, drainage and treatment of the biogas using specific biofilters. This remediation strategy followed a BATNEEC approach, which was both technically efficient and economically optimised, involving active gas recovery by pumping and then passive recovery via the perimeter drainage network.

The site was developed solely for residential use, outside of the former landfill area. The redevelopment of the site developed by Syntaxe Architectes represents a total of around 8,500 sqm of open market housing.