Old Avenue, St. George's Hill, Surrey, KT13
London
£12,000,000
Listed on 25/10/2026
Listed on 25/10/2026
The listing
Property details
Bedrooms
7Type
PlotArea
28000 sqftDescription
Cambourne House is a development site on Old Avenue in St George’s Hill, set on a private plateau within 6.81 acres of woodland. The land is currently without buildings and includes mature pine and oak trees, wooded slopes and south-westerly views across the Surrey countryside. The listing describes scope for a substantial country house, with a previously granted permission for a mansion of approximately 28,000 sq. ft. That permission has lapsed, although the seller reports a Certificate of Lawfulness of Existing Use or Development confirming implementation. Buyers should review the planning records and establish the extent and status of any development rights with their advisers.
WHOTS analysis
Our WHOTS verdict
An internal assessment of the opportunity to acquire, improve and create value.
67out of 100
Grade CPotential opportunity
Confidence: LOW
At £12m, the asking price works out at £429 per sq ft, around 27% below the local average—a strong price-per-square-foot entry point for a site of this scale. The opportunity is the land itself: 6.81 acres of mature woodland, a private plateau and south-westerly countryside views at the heart of St George’s Hill. There is no house to renovate; the CGI shows an illustrative design, not a completed or necessarily approved home.
The reported planning history and CLUED may provide a starting point for creating a substantial country house and landscape tailored to the site, but the original permission has lapsed. Verify the current planning position, the scope of any lawful development and deliverability before relying on the proposed 28,000 sq ft scheme. The price and setting are compelling, while the overall opportunity remains conditional on establishing what can actually be built.
Key opportunities
- Shape a substantial new home and landscape around the plateau, wooded slopes and south-westerly outlook rather than adapting an existing building.
- Use the 6.81-acre setting, mature pine and oak and established screening to create a secluded estate-style approach and grounds.
- The asking price is around 27% below the local average per sq ft, offering an appealing acquisition basis if the development potential is confirmed.
Key risks
- This is an undeveloped site, not a renovation: creating a substantial house and its landscape is a major build programme, not a cosmetic refresh.
- The original planning permission has lapsed; verify the reported CLUED, permitted development scope and current feasibility before relying on the CGI scheme.
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Finance
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Illustrative repayments based on the asking price, not a mortgage offer.
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Current average 2-year fixed rate is 4.45%
Current average variable rate is 6.60%
Monthly Repayments
£45,335
Based on a loan of £9,000,000 over 30 years at 4.45% interest
These results are estimates and are only intended as a guide. Make sure you obtain accurate figures from your lender before committing to any mortgage. Your home may be repossessed if you do not keep up repayments on a mortgage.
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