We were asked to perform a full topographical, elevational and internal survey of three streets of terraced houses including the back alleyways and yards in the Accrington area. There was a total of 88 properties that required survey works to be carried out for the proposed redevelopment.
A full, closed traverse was preformed around the site with many cross checks and then calculated as a networking using Least Squares. Once the topographical survey was completed, a full Laser Scan survey was performed in order to draw the elevations. Whilst the elevations were drawn, a building footprint line was generated, complete with the door and window lines for the ground and upper floors. These structural openings were used as control for the internal surveys and so this task was completed last.