The Green House - Office - London, United Kingdom

The Green House

London, United Kingdom, Map
Partner of Stora Enso
B&K Structures
AJ Retrofit Award - Offices 5 000 m² and over
AJ Retrofit Award - Offices 5 000 m² and over

The Ethical Property Company’s ‘Green House’ brings back to life a derelict 1960s office block to create an environmentally exemplary office space. At almost 50 000 ft² the building provides flexible workspace for up to 50 social change organisations. The original concrete structure has been refurbished and extended by the addition of a six-storey CLT rear extension and a steel-framed storey on the rooftop. Internally the timber extension features a spectacular cantilevered six-storey feature staircase where the glulam treads seamlessly cantilever from a singular CLT by Stora Enso spine wall by way of a pioneering connection detail. Nick Forster – Special Projects Director at The Ethical Property Company comments: “The Ethical Property Company is a social business committed to achieving Social, Environmental and Financial goals. We chose a timber engineering design for this property to minimise the CO2 associated with its construction. We also recognised the benefits of CLT in terms of construction on a very tight site – prefabrication led to a quick and effective construction programme, and minimised disruption for our neighbours. The timber construction has also resulted in a striking and pleasant working environment for our tenants.”

Office Building Concept by Stora Enso
The office buildings of the future are made of wood.
Click here to learn more about our office building concept.


Area (m²) 4600
Storeys 6
Units 50
Products Sylva™ CLT Floors and Roofs, Sylva™ CLT Stairs
Product quality Visible quality (VI), Non visible quality (NVI)
Product volume (m³) 1 558
Product delivery duration (weeks) 8
Number of truck deliveries 30
Partner of Stora Enso B&K Structures
Developer Ethical Property Company
Architect Waugh Thistleton Architects
Structural Engineer Ramboll
MEP Designer Skelly and Couch
Main contractor ARJ Construction
Specialist Timber Subcontractor B&K Structures