BHA Consulting - Casestudy

Client: Chalcroft Ltd



Project Description

A development of 18 residential dwellings constructed on behalf of The Guinness Trust, which manage over 10,000 affordable homes across London, East Anglia and the southeast of England.

BHA Consultings Commission

BHA where appointed by Chalcroft Construction Ltd to undertake the detailed infrastructure design for a small residential development. The development is located in the small village of Gayton, Norfolk and consists of 29 dwellings over two phases. The proposed works included the estate road design and off-site improvement works under a Section 38 Agreement to Norfolk County Council, the private and adoptable surface water drainage design which included the use of soakaways and the adoptable foul water drainage including a Section 104 application to Anglian Water. Following the approval from Norfolk County Council, Anglian Water and the Environment Agency the relevant planning conditions were discharged by the Local Planning Authority.

The site is part of an existing farm development with two of the existing barn buildings forming part of the new development. As a result of this, part of the vertical alignment for the proposed estate road was fixed by the floor levels of these buildings. Access to the remainder of the farm was to be maintained through phase one until phase two is completed. In order to complete the design and gain the necessary approvals, the following standards were applied:

  • Manual for Streets – visibility requirements
  • Norfolk County Council Residential Design Guide – estate road design
  • Sewers for Adoption 6th Edition – adoptable foul water sewer
  • BRE 365 – private surface water soakaway design
  • CIRIA 697 – private surface water soakaway design
  • Building Regulations – pedestrian access requirements, fire engine access and private foul and surface water drainage