20, Castle Street, TN4 0PE
20 Castle Street is a 68 m² / 732 sq ft semi-detached home in Southborough. It sold for £375,000 in August 2026. Indexed forward to today's value, that sale is roughly £371k. Recent local prices imply a broad valuation context of £290k to £383k based on its internal area. The Land Registry and EPC data was last updated 1 November 2026.
- Sale history
-
Date Paid price Annual growth After inflation Aug 2026 £375,000 -0.2% -3.7% Oct 2024 £376,500 4.5% 1.6% Oct 2009 £195,000 na na - Internal area
- 68 square metres (732 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £5,514 per square metre (£512 per square foot) in Aug 2026. Indexed forward to today's value, this is roughly £5,458 per square metre (£507 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Aug 2026 £375,000 £5,515 £371,162 £5,458 Oct 2024 £376,500 £5,537 £371,258 £5,460 Oct 2009 £195,000 £2,868 £367,794 £5,409 Calculated using the latest EPC internal area of 68 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 £371,162. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Southborough are now selling for between £4,260 and £5,630 per square metre (£395 and £523 per square foot). Based on an internal area of 68 m², this implies a valuation between £290,000 and £383,000. 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
- 2
- Type
- Semi-detached
- Council tax band
- C
- Plot size
- 161 square metres (1,733 square feet) - map showing freehold boundary lines
- Planning ref:
- September 2013 13/02286/HOUSE
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- 20 Castle Street Southborough Royal Tunbridge Wells Ken
- Description:
- Demolition of existing lean-to at side/rear and replace with single-storey side extension; Front porch
- Summary:
- 30 May 2024 - energy performance certificate grade D
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- marketed sale
- Tenure:
- Owner-occupied
- Property type:
- Semi-Detached House , has 4 habitable rooms. Estimated year built before 1900
- Area:
- 68 sqm (732 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: Pitched, 100 mm loft insulation. Heating: Boiler and radiators, mains gas.
- Summary:
- 23 March 2009 - energy performance certificate grade F
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- marketed sale
- Tenure:
- Unknown
- Property type:
- Semi-Detached House , has 4 habitable rooms. Estimated year built None to None
- Area:
- 62 sqm (667 square foot) total internal area
- Comments:
- Walls: Solid brick, as built, no insulation (assumed). Roof: Pitched, 150 mm loft insulation. Heating: Boiler and radiators, mains gas.
20 Castle Street 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 £371,162.
- Based on an internal area of 68 m² and recent prices in Southborough, this implies a lower and upper quartile range from £290,000 to £383,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.