12 Clarendon Street, Portsmouth, PO1 4JA
About 12 Clarendon Street
12 Clarendon Street is a semi-detached house in Portsmouth (PO1 4JA). It has a recorded floor area of 89 m² (around 958 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (August 2015) shows an E (score 46), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 85), a 3-band jump. The latest certificate is from August 2015, so improvements made since then won't be reflected.
Held since July 2003 — that's 23 years off the open market, well above the local norm. Across 1999–2003, sale prices on this property compounded at 19.9% per year. Today's modelled estimate of £210,000 sits 85.8% above the 2003 sale of £112,995. It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs).
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 14 Aug 2025
EPC Rating
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Planning history
12 Clarendon Street has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Sale price has at least doubled since 1999.
£210,000
Modelled from EPC, postcode comparables and a sale-price growth of 19.9% per year over 4 years.
£112,995
Growth on file: 19.9% per year over 4 years.
Sales timeline
24 July 2003Most recent
£112,995
+105.5%over 3 years5 August 1999
£54,995
Median price across the last 5 sales in PO1 4JA: £165,000 (2021–2003).
Nearby sales in PO1 4JA
26 Clarendon Street, Portsmouth, PO1 4JA
Sold Jan 2021
£215,00018 Clarendon Street, Portsmouth, PO1 4JA
Sold Mar 2010
£131,00010 Clarendon Street, Portsmouth, PO1 4JA
Sold Sept 2003
£165,00020 Clarendon Street, Portsmouth, PO1 4JA
Sold Jun 2003
£107,00046 Clarendon Street, Portsmouth, PO1 4JA
Sold Feb 2003
£104,000
Versus other Clarendon Street homes
EPC Rating for 12 Clarendon Street lags the street by a wide margin.
Price per m²
£1,270
Street avg £1,549
Floor Area
89 m²
Street avg 93 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
5.2 t/year
Street avg 3.5 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Clarendon Street — bus stop.
Closest school
0.3 km
Ark Dickens Primary Academy. 43 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
56.0dB

Night-time· 23:00 – 07:00
45.1dB







