Major 150,000 m2 redevelopment of the existing Westgate retail centre in central Oxford.
The scheme includes a new 52 unit residential block, 4 new multi let retail buildings, a refurbished retail building, and includes 2 levels of basement. The retail buildings are interconnected to each other via a network of glazed roof arcades. Sturgis Carbon Profiling has been appointed by Land Securities to carry out Whole Life Carbon assessment of the project from the early design stages and throughout design development and construction.
A key feature of the carbon strategy was its attraction to the Oxford Planning Authorities. SCP’s approach was a major contributor to the success of Planning negotiations.
The main contributions of SCP can be summarized as:
The Stage D Carbon Budget was a significant improvement when compared to the Stage C baseline due to the adoption of a number of carbon reduction recommendations.
The savings achieved by the proposed reduction options so far (app.22,500 TCO2) cover over 80% of the stringent carbon emissions target Land Securities has set for Westgate Oxford. The carbon reductions achieved represent about 13% of the total Whole Life Carbon Budget at Stage D.
The above cost neutral carbon savings would cost about £3.5 million if they were to be offset by the installation of renewables (PVs) or about £1.5 million if carbon credits were to be purchased as a penalty. In the Westgate Oxford project, the above carbon savings are being attained via design and specification changes following SCP advice.
A key innovation for the client was carbon-related clauses referring to the carbon targets and the identified reduction options. These were introduced as part of the ERs for the project at contract stage to insure that CO2 emissions reductions are embedded during procurement and construction.
The 25% Recycled Content aspiration is also being achieved as part of the carbon strategy.