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Get started21 Chalk Ridge is a four-bedroom end-of-terrace house in Winchester (SO23 0QW). It has a recorded floor area of 107 m² (around 1152 sq ft), construction records dating it to 1967-1975 and council tax band D. The property has an EV charger and underfloor heating on record, all of which lower running costs and tend to lift resale appeal. The home occupies a cul-de-sac position. The latest certificate (August 2024) shows a C (score 71). The recommended improvements would push it to B (score 82).
Sale prices here have outpaced Winchester HPI: 4.9% per year against 0.2% for the wider region. On a £-per-square-foot basis, the last sale (£508/sq ft) was about 131.1% above the typical sold price in the postcode. Most recent transfer was October 2025 at £585,000 — fresh data. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved.
21 Chalk Ridge has an approved single-storey rear extension on the planning record.
Extension: Single storey · Rear of property
Single storey rear extension
Sale price has at least doubled since 2007.
£572,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.9% per year over 19 years.
£585,000
Growth on file: 4.9% per year over 19 years.
21 Chalk Ridge is notably below the street on years held.
Price per m²
£5,467
Street avg £3,274
Floor Area
107 m²
Street avg 115 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
Crime
10/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Gordon Avenue — bus stop.

Daytime· 07:00 – 23:00
57.5dB

(HOUSEHOLDER) Conversion of existing carport into front porch
13 October 2025Most recent
£585,000
+146.3%over 18 years24 January 2007
£237,500
Median price across the last 5 sales in SO23 0QW: £575,000 (2025–2022).
CO₂ Emissions
3.4 t/year
Street avg 4.2 t/year
SO23 0QB
Closest school
0.6 km
All Saints Church of England Primary School. 9 schools nearby.
Night-time· 23:00 – 07:00
48.9dB
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