A complex development involving both new build and refurbishment of an existing Grade II listed building needed HUSH’s expert knowledge and management to balance the varied aspects of the project.

The development is comprised of 113,000 sq.ft. of net office space, 47 apartments providing both private and affordable housing accommodation, museum and retail space.

The sustainability of the project was at the forefront of the client’s values, with initiatives including:
Future connection to the local community heating and power network within the borough
BREEAM Excellent
Carbon emissions lowered by 53% (GLA target 20%)
20% of energy required within the building serviced from renewable sources



Building/Street Name

UNISON Headquarters, London

Project Value



14,800m2 (GEA)

Construction Period

18 months