In PTEa's radical approach has decked over the railway, creating an extra acre of land. Half of this land will be added to Arundel Square Gardens, and on the remainder they intend to complete the square with a contemporary six-storey apartment building. Its layered façade has been designed to harmonise with its surroundings, taking its framed proportions from the brick pilasters and sash windows of the existing houses.
The original Arundel Square was never completed. After three sides were finished the Victorian developer ran out of money and the North London Line was constructed in a cutting on the south side of the central gardens. PTEa and co-founder Bill Thomas acted as developer for this site assembly through to successful conclusion of the proposal to deck over the railway and the corresponding planning permissions. The site was then sold on to United House Developments.