12 Blossom Square, Portsmouth, PO1 3JH
About 12 Blossom Square
12 Blossom Square is an end-of-terrace house in Portsmouth (PO1 3JH). It has a recorded floor area of 137 m² (around 1475 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (July 2023) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2022. Between certificates, wall efficiency went from Poor to Average; while roof efficiency dropped from Good to Very Poor. The recommended improvements would push it to C (score 78).
Across 2003–2023, sale prices on this property compounded at 8.6% per year. Today's modelled estimate of £270,000 is 26% below the 2023 sale of £365,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£248/sq ft) was about 88.9% above the typical sold price in the postcode. Last sale on file: £365,000 in June 2023.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Cavity wall insulation installed
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Planning history
12 Blossom Square has no planning applications on record.
But the area is active
3 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Latest sale on 12 Blossom Square was the highest on Land Registry record across the postcode.
£270,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.6% per year over 20 years.
£365,000
Growth on file: 8.6% per year over 20 years.
Sales timeline
20 June 2023Most recent
£365,000
+406.9%over 19 years19 October 2003
£72,000
Median price across the last 5 sales in PO1 3JH: £290,000 (2022–2009).
Nearby sales in PO1 3JH
Versus other Blossom Square homes
12 Blossom Square outperforms the street on price per m² by a wide margin.
Price per m²
£2,664
Street avg £1,624
Floor Area
137 m²
Street avg 131 m²
Habitable Rooms
7 rooms
Street avg 7 rooms
CO₂ Emissions
4.4 t/year
Street avg 4.5 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Curzon Howe Road — bus stop.
Closest school
0.3 km
St George's Beneficial Church of England (Voluntary Controlled) Primary School. 33 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
48.9dB

Night-time· 23:00 – 07:00
41.2dB







