RPSA Level 3 Building Survey (Full Building Survey)

A Level 3 Building Survey is the most detailed and comprehensive type of residential survey available. It provides an in-depth assessment of a property's condition, construction, and defects, with detailed explanations, photographs, and specific recommendations. Unlike a Level 2 survey, which follows a standardised reporting format, a Level 3 report is bespoke to the property — the surveyor has the flexibility to investigate and describe the building in whatever level of detail the circumstances require. The report covers the building's construction type and materials, a room-by-room inspection of accessible elements, detailed analysis of any defects including likely causes and consequences, and prioritised recommendations for repairs, maintenance, and further investigations. It is the closest equivalent to what was traditionally known as a full structural survey, and it is the recommended choice for older, altered, unusual, or visibly distressed properties.

A Level 3 survey is recommended for older properties, typically those built before 1930 or of any age where the construction is non-standard or the condition is uncertain. It is particularly appropriate for listed buildings and properties in conservation areas, homes that have been significantly altered, extended, or had loft or basement conversions, properties of unusual construction such as timber-framed, steel-framed, or system-built houses, buildings that appear to be in poor condition or have visible structural defects, and any property where you are planning major renovation or alteration work and need a thorough understanding of the existing structure. It is also the right choice for very large or complex properties where a standardised Level 2 report would not do justice to the building's nature. If you are unsure whether a Level 3 survey is necessary for your property, send us the details and we will give you an honest recommendation based on our experience.

A Level 3 survey includes a thorough inspection of all accessible parts of the property — external walls, roof coverings and structure (including entering the roof space where safe), chimneys, gutters, and downpipes, windows and external doors, internal walls, floors, and ceilings, visible dampness and timber condition, the visible parts of plumbing, heating, drainage, and electrical installations, and the site including boundaries, retaining walls, outbuildings, and permanent structures. The inspection is more invasive than a Level 2 survey in the sense that the surveyor will lift accessible inspection hatches, open windows and doors to check operation, and probe suspect timbers where accessible. The resulting report provides detailed descriptions of construction, a full analysis of each defect including its likely cause and significance, prioritised repair recommendations, and guidance on the need for further specialist investigations. Reports typically run from 40 to 80-plus pages depending on the size and complexity of the property, and include photographs, diagrams, and a clear summary of the most important findings.

Yes — this is one of the defining features of a Level 3 survey. The report provides detailed repair advice for each defect identified, explains the urgency of the issue (whether it needs immediate attention, can be planned within a reasonable timeframe, or is a longer-term maintenance consideration), and outlines appropriate remedial options. While it does not provide formal cost estimates (these require a quantity surveyor or builder's quotation), it will indicate the scale and complexity of the work so you can have informed discussions with contractors. For complex structural issues, the report will recommend whether a structural engineer's assessment is advisable and explain what that investigation would involve.

Yes — structural assessment is a core element of the Level 3 survey. The surveyor examines the building for visible signs of structural movement, including subsidence, settlement, heave, and lateral movement. This involves assessing cracking patterns (width, direction, location, and whether they are active or historic), checking for out-of-plumb walls and uneven floors, looking for signs of roof spread or wall bulging, and evaluating the condition of lintels, beams, and other structural elements. The report explains the likely cause of any movement observed, its significance, and whether it appears to be progressive or long-standing. Where structural concerns are significant, the surveyor may recommend a structural engineer's inspection to provide a more detailed assessment and, if necessary, design any remedial works.

Yes — these all refer to the same inspection. "Level 3 survey", "Level 3 home survey", "Level 3 building survey" and "Level 3 structural survey" are interchangeable names for the most detailed RPSA / RICS inspection level. The colloquial term "structural survey" or "full structural survey" comes from the older RICS terminology used before the numbered Level system was introduced in 2021. Whichever name appears in your search or solicitor advice, the underlying scope is the same: an in-depth examination of construction, defects, causes and likely consequences, with a bespoke written report.