Here is a link to the full article but you will need an AJ subscription.

Catja de Haas Architects looks at architecture on all scales: from buildings, to pieces of furniture, art installations, urban plans, ideas and concepts. We feel that good architecture is made when the project is considered in its context and the right questions are asked in order to come to a balanced, original proposal, that conforms to the wishes of the client, while considering the site. The profits made are invested in the running of ‘The Giant Dolls’ House Project’, a community arts project that raises awareness and funds for the importance of a home and community for all.
Exposed structure and plaster mark Catja de Haas’s basement office conversion. Feature in the AJ written by Rob Wilson.
May 2020
Published by Isabelle Lomholt
May 2020
The basement of this London terraced house has been re-modelled to create a light, airy office for the architect’s practice, complete with its own direct entrance. The internal stairs down to the Workspace Conversion have been removed and one of the spine walls has been opened-up leaving the structure exposed. Full story can be seen here.
Words: Dominic Bradbury Photographs: Rachael Smith
February 2020
When it came to choosing the perfect spot for a new family home, the coastal lowlands around Chichester Harbour pulled on Catja de Haas’s heartstrings. This hinterland between land and sea reminded the Dutch architect of her childhood back in the Netherlands, so West Sussex and its landscape represented a curious kind of homecoming.
January 2020
This south London house has undergone a complete transformation, whilst retaining and restoring original features.
Two small bedrooms on the top floor are separated with a curtain and have both a small loft room to retreat into. This reduces the height-perception of the house and reduces the load on the foundation. A small dormer houses a new small room with views over the city and under the eaves a second bedroom is located. The void space is used to hang netting to create hammocks.
The rafters in the cathedral ceiling have been left exposed and have been painted.
Cathedral ceiling: the house is tall and narrow and this ceiling makes it look taller and bigger.
Netting creating a hammock between spaces to relax.
Staircase to the loft space, with discreet storage
Homelessness is still a huge issue, a year after this competition was launched and which was won by Morris and co. We will leave this entry as a reminder of the importance of the issue. We do hope to inspire hotel owners to incorporate our ideas.
September 2018
Hidden Homelessness Competition on the Colander Website.
Proud to be part of the winning team for this important competition. Our proposal: ‘Good Night’, combined a hotel and hostel, as a social entrepreneurship project. Goodnight was written in the parapet of the proposed building: wishing all in the building as well as all in the city a good night. We wish each other a good night, every night, a pledge, or reminder that sleeping safely is important: something we should all work towards achieving for all.
Office Ten
The Colander Website
AJ coverage
Catja de Haas Architects Collaborated with Rosie Bichard; Anders Luhr and Erika Suzuki from OfficeTen. Sophie Walker worked on the project for Catja de Haas Architects.
March 2016
July 2014
the stairs move, and form a decorative object in the room. This was a study for steps in the Toolkit. They were, however, abandoned in favour of a simple ladder.