Case Studies > Soho Estates’ Ilona Rose House, London
Sustainability consultant
Eight Associates
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Soho Estates’ Ilona Rose House, London


Ilona Rose House is a high profile, mixed-use development in Soho, consisting of new offices, retail and residential units. The development involves the demolition and construction of buildings on a site bounded by Charing Cross Road, Manette Street and Greek Street, and the major refurbishment of an existing listed building on Greek street. The development is undergoing three BREEAM assessments, 2014 New Construction Retail and 2014 New Construction Offices and BREEAM Domestic Refurbishment.

Eight Associates was appointed as the development’s Ecology consultant, to conduct the Phase 1 Habitat survey, protected species risk assessment and BREEAM Ecology Report, and the subsequent bat building inspection and dusk survey. Eight Associates’ advice substantially increased the site’s ecological value and ensured full Ecology assessment credits were achieved.

During the initial surveys, potential features used by bats, including several ingress points that could act as bat roosts, were identified, inspected and confirmed as low potential. A bat dusk survey was carried out in line with Bat Conservation Trust guidelines and protected species legislation, providing clarification that the building was not used by bats. This early action ensured there was no delay to work starting on site and the demolition schedule.

Eight Associates’ suggestions to improve the site’s ecological value, such as planting that would benefit wildlife, bat and bird boxes, insect houses and a deadwood loggery, were incorporated, along with advice on the design of the proposed green roof. Eight Associates also created a five year management plan for the site, which detailed long term maintenance to the biodiversity features on site and contributed to gaining the LE 05 assessment credit.

The development is on target to achieve full Ecology credits and the BREEAM ‘Excellent’ target rating across all three schemes.

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Client Quotes
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Steve Reynolds
Director, Thornton Reynolds Engineering Consultancy
"Eight Associates has provided invaluable sustainability advice for our RIBA award-winning boarding house at Brighton College, for both the BREEAM assessment and ecology. They were able to ensure we met Brighton and Hove Council's stringent Sustainability Policy in a very tight timeframe. I have found Eight to be a breath of fresh air and have already appointed them on our next development."
Steve Patten
Projects Director, Brighton College
"The Green Register really values eight associates' commitment to the promotion of sustainable building in all areas of their work."
Lucy Pedler
Director, The Green Register of Construction Professionals
"Eight Associates has worked for Cadogan for many years to help us reach our objective to develop more sustainable buildings on the Estate. We have found their assistance in helping us to achieve this objective invaluable and Eight Associates form an integral part of the develop team in reaching this goal."
Nicholas Dutton
Head of Building Surveying, The Cadogan Estate
"Our experience of working alongside Eight Associates on a variety of projects is of a professional and progressive company. Clients benefit from an efficient multidisciplinary approach, that provides a very effective service to developers, architects, institutions and property owners in relation to their environmental, ecological, planning and sustainability matters."
Jason Mills
Writtle Forest Consultancy Ltd.
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