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Get started23 Castle Street is a two-bedroom mid-terrace house in Southampton (SO14 6GZ). It has a recorded floor area of 77 m² (around 824 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (October 2010) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in October 2010 the rating was E, the property has climbed 1 band since. The recommended improvements would push it to C (score 74). The latest certificate is from October 2010, so improvements made since then won't be reflected.
Sale prices here have outpaced Southampton HPI: 7.7% per year against 0% for the wider region. Today's modelled estimate of £250,000 is 39.7% above the 2011 sale price. 15 years since the last transfer (May 2011). Across the public record there are 4 sales, relatively high churn for a single property. One planning record on file: an extension approved in 2013. Past consents include an extension, meaningful when judging how the property has evolved.
23 Castle Street's EPC is over a decade old — improvements since won't be reflected.
This certificate is over 10 years old and is no longer valid.Expired 11 Oct 2020
23 Castle Street has an approved single-storey extension on the planning record.
Extension: Single storey
Erection of a single storey front extension and single storey rear extension (part retrospective)
Sale price has at least doubled since 1997.
£250,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.7% per year over 14 years.
£179,000
Growth on file: 7.7% per year over 14 years.
23 Castle Street outperforms the street on years held by a wide margin.
Price per m²
£2,339
Street avg £3,184
Floor Area
77 m²
Street avg 76 m²
Habitable Rooms
4 rooms
Reported crime in the wider district is trending notably upward year-on-year.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km

Daytime· 07:00 – 23:00
54.7dB

Changes detected from historical EPC data
Are we missing something? Tell us about home improvements to help adjust your valuation.
27 May 2011Most recent
£179,000
+7.2%over 5 years26 October 2005
£167,000
+74.0%over 4 years23 May 2001
£96,000
+47.8%over 3 years12 September 1997
£64,950
Median price across the last 5 sales in SO14 6GZ: £232,000 (2025–2021).
Street avg 4 rooms
CO₂ Emissions
3.6 t/year
Street avg 2.8 t/year
SO14 6HP
Denzil Avenue — bus stop.
Closest school
0.3 km
Bevois Town Primary School. 38 schools nearby.
Night-time· 23:00 – 07:00
44.5dB
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