A RICS Level 2 Home Survey may suit conventional construction in reasonable condition. Discuss an older, unusual or substantially altered property, or plans for major work, before choosing the level. Compare the Level 3 brief for Knightsbridge.
Trevor Place and Montpelier Square: differences within the terraces
A Knightsbridge purchase can turn on the relationship between a principal house, its lower accommodation and later roof or rear work. For a flat, show the unit within that arrangement. Before choosing a survey, identify the particular component, alteration or inaccessible space that could affect your decision to proceed.
Westminster’s Knightsbridge audit distinguishes the three-storey early Victorian terraces of Trevor Place from larger Montpelier Square houses with four storeys and a basement. Sections 4.33–4.35 also record differences in detailing and later ground-floor alterations. These are local examples within the named conservation areas, rather than a uniform model for every Knightsbridge house, mansion flat or modern apartment.
For the actual terrace purchase, mark the principal stair, basement entrance and any later attic accommodation on the plan. If the seller relies on similar work elsewhere on the square, ask for the documents belonging to this house. The recorded variety is a reason to examine its own arrangement, not to infer a defect or unapproved alteration from a difference in the frontage.
The difference between Trevor Place and Montpelier Square houses makes the purchased building's own plan essential to a Knightsbridge Level 2 enquiry. Identify the bought floors, basement entrance and any later attic accommodation, then connect known alterations to the records for this address. Conventional construction in reasonable condition may suit Level 2, while a complex conversion or substantial change can justify Level 3. Similar work elsewhere on the square is not proof of the support, permissions or repair history of this home.
Connect a changed bay or opening to its records
A modified ground-floor window or enlarged opening may have a work history distinct from the rooms above it. Ask for drawings identifying that opening and the completion information available. Note whether the feature is in the dwelling being bought or within common fabric controlled by the freeholder.
The inspection can address what is visible within the agreed access, while concealed supports may need additional evidence or a separate investigation. Keep an observed crack, a missing drawing and a planning question as three different findings. Neither a decorative match with the terrace nor a seller’s account of refurbishment establishes all three answers.
For a flat, locate the private rooms within the common envelope and ask which roof, stair and outside areas can be inspected. Obtain management papers naming the component covered by completed or proposed works. Your solicitor can examine liability alongside the physical findings. A front elevation gives only part of the arrangement, so make rear additions and inaccessible spaces explicit. If the purchase depends on a major redesign or resolving a particular concealed-construction issue, state that before instruction; a home-condition survey should not be assumed to include every specialist investigation or the design and approvals for future changes.
Define the lower-floor and roof access independently
For a flat with basement accommodation, ask which lightwell and below-ground spaces form part of the instruction. Obtain any water-entry investigation and repair specification for those rooms. Do not substitute a document for another flat or a shared vault unless it actually concerns the element affecting this purchase.
Roof access needs its own contact and permission. A managing agent may be able to provide a maintenance record even where physical entry is unavailable, but that record should identify the work and its extent. Ask which roof slopes and outlets remain unobserved, particularly when the home is at a different level from the common entrance.
Separate the purchase from a proposed redesign
If the buyer intends to combine rooms or change a basement, send the proposal as a distinct question alongside the current floor plan. Assessing the existing dwelling does not automatically include designing that scheme or confirming that the freeholder and council will approve it.
Use the cited Knightsbridge context to organise the enquiry, then check current requirements for the exact address with the relevant advisers. The written quotation should identify the dwelling and purchase-survey scope. Agree any additional technical investigation or design work separately where needed.
Level 2 fees for Knightsbridge
Home Survey questions for Knightsbridge
Can I apply a Montpelier Square description to any Knightsbridge home?
It is a documented local example, alongside Trevor Place, rather than a description of the whole district. Confirm the building form and alteration history for the property being bought. A modern apartment or different terrace may need a different brief.
What helps investigate an altered ground-floor opening?
Supply the drawings and work records for that opening, including its position relative to the dwelling and shared structure. Identify the accessible faces. A matching decorative finish does not verify a support that remains hidden.
Does a managing agent’s roof invoice replace inspection?
It can provide useful history if it identifies the roof section and work. It does not establish current condition everywhere or remove an access restriction. Keep the invoice and the limits of the available physical view as separate evidence.
Is advice on combining two flats part of the purchase survey?
Explain the intended change, but agree any design, feasibility or specialist work separately. The home survey addresses the current property within its brief. Freeholder requirements and statutory approvals are separate enquiries for the relevant advisers.
Local evidence: Westminster — Knightsbridge, Knightsbridge Green and Albert Gate Conservation Area audit; RICS home survey guide.
Content updated: October 2026.