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Get started6 Castle Street is a three-bedroom mid-terrace house in Southampton (SO14 6HA). It has a recorded floor area of 76 m² (around 818 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (January 2019) shows an E (score 53), well below the UK norm with real room to improve. Earlier certificates rated it D (November 2008); the latest reading is one band lower. Between certificates, hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 84), a 3-band jump.
Untraded for 19 years, with the last transfer in June 2007. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Sale prices here have outpaced Southampton HPI: 10.7% per year against 0% for the wider region. Today's modelled estimate of £262,000 is 40.1% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£229/sq ft) was about 48% above the typical sold price in the postcode. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
6 Castle Street sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
6 Castle Street has more than doubled in price since the earliest registered sale in 1997.
£262,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.7% per year over 10 years.
£186,957
Growth on file: 10.7% per year over 10 years.
6 Castle Street is notably below the street on epc rating.
Price per m²
£2,460
Street avg £2,228
Floor Area
76 m²
Street avg 78 m²
Habitable Rooms
5 rooms
Street avg 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
0.3 km

Daytime· 07:00 – 23:00
54.5dB

29 June 2007Most recent
£186,957
+107.8%over 7 years7 March 2000
£89,950
+32.3%over 2 years21 July 1997
£68,000
Median price across the last 5 sales in SO14 6HA: £189,277 (2025–2013).
CO₂ Emissions
4.3 t/year
Street avg 3.2 t/year
SO14 6HZ
Denzil Avenue — bus stop.
Closest school
0.3 km
Bevois Town Primary School. 38 schools nearby.
Night-time· 23:00 – 07:00
44.4dB
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