Building Survey

A building survey is the most thorough form of residential or commercial property inspection available. In UK practice, it was historically called a full structural survey to distinguish it from the more limited homebuyer report, though the term building survey is now standard. It is carried out by a chartered building surveyor and covers all accessible parts of a property in detail — structure, roof, walls, floors, windows, services, drainage, and finishes.

Building surveys are most commonly commissioned before the purchase of an older, unusual, or high-value property, or one where specific concerns exist. A standard homebuyer report — the lighter inspection option offered by many surveyors — is sufficient for a straightforward modern property in good condition, but for a Victorian terrace with a history of dampness problems, a listed building being considered for conversion, or a 1960s flat with a concrete frame of uncertain specification, a full building survey is the appropriate choice.

The output of a building survey is a detailed written report that describes the condition of each element, identifies defects, categorises their significance (using a 1-3 rating scale in RICS format), and recommends further investigation or immediate remedial action where appropriate. A good building survey report not only records what is wrong but explains why it is wrong, what the consequences of inaction are, and what remedy is required.

Photographic documentation is integral to a building survey but varies considerably in quality between practitioners. The minimum standard is flat photographs keyed to a schedule. Better practice is geo-referenced photographs keyed to floor plan drawings so that each photograph can be located precisely within the property. Best practice is 360° panoramic photographs pinned to floor plans — a spatially-indexed record that allows any reviewer to navigate the property virtually and cross-reference every observation in the report to its precise location.

For complex buildings, the spatial approach makes a material difference to the usefulness of the report. A buyer who cannot visit the property again before exchange benefits enormously from an interactive 360° survey that allows them to re-examine any element from the surveyor's perspective.