CONSTRUCTION SITE SURVEY AND ANALYSIS TIPS AND TECHNIQUES


Site Analysis † prior to purchasing a building site it is essential to conduct a thorough survey to ascertain whether the site characteristics suit the development concept. The following guidance forms a basic checklist:

* Refer to Ordnance Survey maps to determine adjacent features, location, roads, facilities, footpaths and rights of way.

* Conduct a measurement survey to establish site dimensions and levels.

* Observe surface characteristics, i.e. trees, steep slopes, existing buildings, rock outcrops, wells.

* Inquire of local authority whether preservation orders affect the site and if it forms part of a conservation area.

* Investigate subsoil. Use trial holes and borings to determine soil quality and water table level.

* Consider flood potential, possibilities for drainage of water table, capping of springs, filling of ponds, diversion of streams and rivers.

* Consult local utilities providers for underground and overhead services, proximity to site and whether they cross the site.

* Note suspicious factors such as filled ground, cracks in the ground, subsidence due to mining and any cracks in existing buildings.

* Regard neighbourhood scale and character of buildings with respect to proposed new development.

* Decide on best location for building (if space permits) with regard to `cut and fill', land slope, exposure to sun and prevailing conditions, practical use and access.

Site Investigation For New Works ~ the basic objective of this form of site investigation is to collect systematically and record all the necessary data which will be needed or will help in the design and construction processes of the proposed work.

The collected data should be presented in the form of fully annotated and dimensioned plans and sections. Anything on adjacent sites which may affect the proposed works or conversely anything appertaining to the proposed works which may affect an adjacent site should also be recorded.

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