London Basement Impact Assessment and Surface Water Drainage Design
London: Basement Impact Assessment
Earth Environmental & Geotechnical’s Reading Office was commissioned to undertake a Basement Impact Assessment (BIA) and surface water management drainage design (SUDs Report) at a private residential development in West London. EEGSL was contacted after a previous consultant was unable to complete the works to the client’s specification. EEGSL undertook ground investigation works including a 10m cable percussive borehole, a series of gas and groundwater monitoring visits and soakaway testing (BRE 365 Standard).
As with all BIA’s completed by EEGSL, a preliminary hydrogeological ground model was compiled alongside a review of flooding risk and geotechnical assessment. The resulting BIA and Geotechnical Report were used by the project’s structural engineer to inform the basements construction and design.
The site investigation was supervised full time by experienced Earth Environmental Consultants and all fieldworks were carried out in accordance with BS 5930:2015 Code of Practice for Site Investigations.
The works culminated with the production of a detailed Basement Impact Assessment and Interpretative Geotechnical Report and a Surface Water Drainage Design Report providing recommendations on :
- Basement construction design and methodology;
- Geotechnical design information;
- Surface water management and discharge
- Ground gas risk assessment
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Basement Impact Assessment & Surface Water Drainage Design West London 537
Developing your basement is an excellent way to increase your floor space. Building a basement under an existing house can provide valuable extra living space whilst preserving the exterior vernacular with sympathetic external alterations. Basements can also be extended under gardens so additional floor space could be extensive. But it is essential to have an equally extensive understanding of the impact your basement development will have.
At Earth Environmental & Geotechnical we have extensive experience and knowledge, not only is providing the initial screening for a Basement Impact Assessments, but also providing all the related Environmental & Geotechnical services to support your basement development.
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