309b, Copnor Road, Portsmouth, PO3 5EG
About 309b
309b is an end-of-terrace house in Portsmouth (PO3 5EG). It has a recorded floor area of 135 m² (around 1453 sq ft) and construction records dating it to 1930-1949. At 135 m² this is the largest unit on EPC record across the building (41–135 m²). The building's EPC ratings span F to C, with this unit at the top. On EPC score it ranks first in the building (73 versus a worst of 21). The latest certificate (May 2026) shows a C (score 73). When first surveyed in July 2013 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good; while roof efficiency dropped from Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition.
At 135 m² the property is well over the postcode median (67 m² across 27 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 70% of similar EPCs). One historical planning record sits against the property in 2016.
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Energy performance
The EPC has just been inspected, so the rating reflects current condition.
EPC Rating
Certificate validity
Valid until 3 May 2036
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
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Planning history
1 application on record at 309b, Copnor Road, Portsmouth, PO3 5EG
- Feb 2016Loft ConversionFullOutcome in report
Loft conversion with alterations to include installation of rooflights to front and side elevations and window to rear elevation
- Documents
- 5 docs on file
- Reference
- 16/00035/HOU
Unlock 309b, Copnor Road, Portsmouth, PO3 5EG's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 9 notable nearby
- The 5 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
309b has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£290,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in PO3 5EG: £200,000 (2025–2020).
Nearby sales in PO3 5EG
Versus other Copnor Road homes
EPC Rating for 309b runs comfortably ahead of the street norm.
EPC Rating
73 (C)
Street avg 62 (D)
Floor Area
135 m²
Street avg 69 m²
CO₂ Emissions
3.3 t/year
Street avg 3.1 t/year
Habitable Rooms
6 rooms
Street avg 3 rooms
Everything you need to know about 309b
The true value, the hidden risks and the full sale history, in one report.
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Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
141/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
College Park — bus stop.
Closest school
0.2 km
Mayfield School. 34 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
51.6dB
Night-time· 23:00 – 07:00
41.6dB