20, The Keep, SE3 0AF
20 The Keep is a 77 m² / 829 sq ft terraced home in Blackheath. It sold for £680,000 in June 2015. Indexed forward to today's value, that sale is roughly £874k. Recent local prices imply a broad valuation context of £506k to £703k based on its internal area. The Land Registry and EPC data was last updated 22 September 2026.
- Sale history
-
Date Paid price Annual growth After inflation Jun 2015 £680,000 8.5% 6.1% Apr 2007 £350,000 9.9% 8.0% Dec 1997 £145,000 na na - Internal area
- 77 square metres (829 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £8,831 per square metre (£820 per square foot) in Jun 2015. Indexed forward to today's value, this is roughly £11,354 per square metre (£1,055 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Jun 2015 £680,000 £8,831 £874,257 £11,354 Apr 2007 £350,000 £4,545 £695,002 £9,026 Dec 1997 £145,000 £1,883 £858,391 £11,148 Calculated using the latest EPC internal area of 77 m². Earlier sale dates may not have had the same measured area available.
- Valuation
- The most recent sale price indexed forward to today's value is £874,257. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Blackheath are now selling for between £6,570 and £9,130 per square metre (£610 and £848 per square foot). Based on an internal area of 77 m², this implies a valuation between £506,000 and £703,000. Treat this as context only. For a valuation using hand-picked comparable sales, use the Advanced search tool — create a shortlist of similar condition homes, then export a valuation report.
- Bedrooms
- 3
- Type
- Terrace
- Council tax band
- E
- Plot size
- 135 square metres (1,453 square feet) - map showing freehold boundary lines
- Planning ref:
- February 2016 15/3328/CP
- Type:
- Outline application - proposal prior to a full application, including assessments and scoping opinions.
- Status:
- Application approved
- Address:
- 20 THE KEEP, BLACKHEATH, LONDON
- Description:
- Construction of a single storey rear extension, replacement roof covering and replacement double glazed windows to the front elevation.
- Planning ref:
- December 2015 15/3438/TP
- Type:
- Tree and hedge works
- Status:
- Application approved
- Address:
- 20 THE KEEP, BLACKHEATH, LONDON
- Description:
- Sycamore (T1) - fell due to excessive shading and low amenity value. Replant with Birch or Acer.
- Planning ref:
- March 2009 09/0130/TC
- Type:
- Tree and hedge works
- Status:
- Application approved
- Address:
- 20 THE KEEP, BLACKHEATH, LONDON
- Description:
- Crown reduce and thin by max 30% Sycamore tree in rear garden.
- Summary:
- 19 August 2013 - energy performance certificate grade C
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- Rental
- Tenure:
- Private rental
- Property type:
- Mid-Terrace House , has 4 habitable rooms. Estimated year built 1976 to 1982
- Area:
- 77 sqm (829 square foot) total internal area
- Comments:
- Walls: System built, as built, partial insulation (assumed). Roof: Pitched, limited insulation (assumed). Heating: Boiler and radiators, mains gas.
20 The Keep is worth whatever price a willing buyer and seller agree upon. However, the following can provide useful context.
- HouseMetric estimates the most recent sale price indexed forward to today's value is £874,257.
- Based on an internal area of 77 m² and recent prices in Blackheath, this implies a lower and upper quartile range from £506,000 to £703,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.