This multi-phased development involved the decant and demolition of around 300 local authority properties on a failing 1960s housing estate in the London Borough of Sutton, followed by the development of 260 market sale homes and 214 affordable homes. A further 18 homes were developed for private rental. The scheme is being delivered in four phases.

Phase 2 of the development has been successfully completed and is the largest of the phases to be constructed so far. This phase provided 116 mixed tenure, Code Level 4 homes. Phase 3 of the scheme is currently on site, due to complete in 2019 and includes a new park and play areas. Designs are also being progressed to upgrade the adjacent walk along the River Wandle to enhance the amenity and ecology in the area.

A flexible approach to tenure and building design was adopted from the start of this project to maintain affordability during a time of difficult market conditions. Cross subsidy was provided through the development of 94 homes on 9 under-used satellite sites. These homes also served to facilitate the decanting of the first phase.

To permit the schemes to progress it was necessary to purchase Freehold properties across the scheme. To ensure resident relationships were not damaged or delays caused required sensitive handling. calfordseaden overcame this potential issue by undertaking a carefully planned, structured programme of resident consultation events. This resulted in the scheme proposals gaining an 82% approval rate from the residents.

The sustainability and energy strategy for the scheme utilised timber frame, district heating and CHP installation. This serves the entire site, providing maximisation of passive energy efficiency measures to deliver the required CO2 emission reductions, rather than through renewable technologies. The logic behind this being that passive measures will last for the life of a building, have no running costs and are not reliant on ‘correct’ operation to achieve savings.

Using the lessons learned from each phase of the scheme, the team has been able to refine designs and delivery processes to reduce cost and time requirements.

Phases 1a, 1b and Phase 2 of the development have all been completed within budget. Phase 3 is planned to be completed by 2019.