Builders Ede – Bow Farm residential developmentStanford-in-the-Vale
This 37-house development, which was constructed over two phases by Builders Ede, is located on the former Bow Farm site and adjacent agricultural land. The development, which covers an area of 2.45 Ha, is located to the north of Stanford-in-the Vale in Oxfordshire and is accessed from Bow Road. Ridge was engaged with the design of the roads, drainage and the structural elements of the houses.
The scheme comprises of 37 houses. Phase one, which consists of 18 houses, was constructed on the former Bow Farm site with Phase two located on the agricultural fields to the rear of Phase one.
Access was provided from Bow Road via the existing farm entrance and a new access that was formed between the existing houses that front Bow Road. The works within the existing public highway were subject to a S278 Agreement with Oxfordshire County Council (OCC) with the on-site roads being adopted under a S38 Agreement again with OCC.
The ground conditions comprise Oxford Clay and are therefore unsuitable for soakage systems, therefore an attenuated connection was provided. Due to the layout of the site and its topography it was not feasible to provide a tank or pond at the bottom of the site to attenuate the run-off from the development, therefore the roads were formed from permeable paving to convey and store the surface run-off from the houses and the paved areas. A series of baffles (dams) with orifice plates were used to control the flow of water through the pavement to ensure that the pre-development run-off rates were not exceeded in order to meet OCC’s and the drainage authorities’ requirements. A detailed hydraulic model was created using the Microdrainage software to ensure that the permeable paving did not surcharge for the 1 in 100 plus climate change event. The headwall outfall into the Frogmore Brook was subject to land drainage consent.