Colebrook Street
Award Winning
Award Winning
Location: Winchester
Client: St John’s Winchester Charity
Architect: Rockcliffe Williams
Value: Not disclosed
Awards:
2024 City of Winchester Trust – Design Awards, Commendation
This project involved the redevelopment of a constrained urban site at Colebrook Street, combining the refurbishment of a Grade II listed building with the construction of new residential accommodation.
The scheme forms part of the wider St John’s estate in Winchester and delivers almshouse apartments alongside retained community uses. The site is influenced by nearby river systems, historic structures and buried archaeology, requiring a sensitive and coordinated structural and civil engineering response.
The project presented multiple technical challenges, including variable ground conditions, archaeological constraints and complex flood risk considerations due to proximity to the River Itchen and culverted watercourses. Existing structures exhibited historic movement and required careful stabilisation. Drainage infrastructure was fragmented, with connections to combined and surface water systems. In addition, the site layout, restricted access and integration of new and existing buildings demanded a coordinated structural strategy.
The completed design delivers a robust and efficient structural solution that integrates new and historic buildings while addressing complex ground and flood conditions.
Surface water management achieves betterment by reducing flows into the public sewer and controlling discharge rates to receiving watercourses. The development meets planning and environmental requirements, including flood resilience and sustainability objectives. The scheme provides high-quality residential accommodation within a sensitive historic setting, supporting the long-term use and viability of the wider site.
Photo credit: Ethan Davis Creative
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