20, Treetops, RH13 9GE
20 Treetops is a 110 m² / 1,184 sq ft semi-detached home in Southwater. It sold for £492,500 in May 2026. Indexed forward to today's value, that sale is roughly £489k. Recent local prices imply a broad valuation context of £481k to £625k based on its internal area. The Land Registry and EPC data was last updated 2 July 2026.
- Sale history
-
Date Paid price Annual growth After inflation May 2026 £492,500 4.9% 2.0% Oct 2013 £268,000 6.0% 3.8% Oct 2012 £253,000 na na - Floor plan
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Archived estate agent floor plan for 20, Treetops.
- Internal area
- 110 square metres (1,184 square feet) according to latest EPC inspection
- Price per internal area
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This property sold for £4,477 per square metre (£416 per square foot) in May 2026. Indexed forward to today's value, this is roughly £4,444 per square metre (£413 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm May 2026 £492,500 £4,477 £488,821 £4,444 Oct 2013 £268,000 £2,436 £414,197 £3,765 Oct 2012 £253,000 £2,300 £411,828 £3,744 Calculated using the latest EPC internal area of 110 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 £488,821. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Southwater are now selling for between £4,370 and £5,680 per square metre (£405 and £527 per square foot). Based on an internal area of 110 m², this implies a valuation between £481,000 and £625,000. 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
- Semi-detached
- Council tax band
- E
- Plot size
- 248 square metres (2,669 square feet) - map showing freehold boundary lines
- Planning ref:
- September 2018 DC/18/1466
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- 20 Treetops Southwater Horsham West Sussex
- Description:
- Erection of a part-two storey and part-single storey side extension.
- Summary:
- 24 November 2025 - energy performance certificate grade C
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- Marketed sale
- Tenure:
- Owner-occupied
- Property type:
- Semi-Detached House , has 7 habitable rooms. Estimated year built 1991 to 1995
- Area:
- 110 sqm (1,184 square foot) total internal area
- Comments:
- Walls: Cavity wall, as built, insulated (assumed). Roof: Pitched, 100 mm loft insulation. Heating: Boiler and radiators, mains gas.
- Summary:
- 28 June 2012 - energy performance certificate grade D
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- Marketed sale
- Tenure:
- Unknown
- Property type:
- Semi-Detached House , has 5 habitable rooms. Estimated year built 1991 to 1995
- Area:
- 78 sqm (840 square foot) total internal area
- Comments:
- Walls: Cavity wall, as built, insulated (assumed). Roof: Pitched, 100 mm loft insulation. Heating: Boiler and radiators, mains gas.
20 Treetops 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 £488,821.
- Based on an internal area of 110 m² and recent prices in Southwater, this implies a lower and upper quartile range from £481,000 to £625,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.