Rooftop extensions

01-09-2024
The Netherlands faces pressing issues such as housing shortages and a lack of space or opportunities for construction of new residential buildings. There is also a desire for sustainability, energy transition, and qualitative improvement of existing buildings. One solution is the utilisation of unused (mostly flat) roofs by creating so-called ‘top-ups’ (rooftop extensions).

This document provides a brief comparison of the private law requirements in the Netherlands, Germany and France regarding the realisation of a top-up on a multi-unit residential building divided into apartment rights.