About Us

First Penthouse specialise in rooftop development, with a difference. Using off-site construction methods, rooftops in London are transformed from under-utilised spaces into value assets- with minimal disruption to existing occupiers.

First Penthouse was founded by Håkan and Annika Olsson, two highly qualified Swedish engineers with a career background in developing advanced and innovative construction techniques.

Having built their own penthouse using traditional construction methods, Håkan and Annika encountered significant problems during their build and soon realised that there must be a better way.

First Penthouse was set up with the objective of streamlining the development process and minimising disruption for existing occupiers.