Our team prepares these reports under RICS regulation from our London office at Boundary Row, SE1, with BRE 209 (2022) as the working reference. Where works cross a shared boundary, party wall services sit alongside the daylight piece, and the practice has been delivering daylight and sunlight reports since 2004.
Overshadowing analysis on ground-level amenity tests the 21 March sun position recommended in the guidance. Sunpath studies cover seasonal access where these add useful evidence, particularly on the Thames-fronting plots and the conservation-area garden settings where mature tree cover and historic boundary lines drive much of the result. Trees within the impact zone are factored in where they materially affect the outcome.
A typical turnaround is 2 to 3 weeks from instruction. Calls are answered by a qualified surveyor, and a free initial assessment sets out scope before any fee is committed. This is a bespoke surveying service shaped to each scheme.
BRE 209 sets reference values, not legal thresholds, and shortfalls can be justified where the context supports the design. Reports are turned around in 2 to 3 weeks. The free initial assessment is the way in for borderline cases or for early advice on whether a full study is needed.
