355a, Copnor Road, Portsmouth, PO3 5EQ
About 355a
355a is a mid-terrace house in Portsmouth (PO3 5EQ). It has a recorded floor area of 63 m² (around 678 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (November 2018) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in May 2017 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Poor; while lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 78). At 63 m² this is the 5th smallest of 15 units on EPC record in the building, where floor areas span 45–124 m². The building's EPC ratings span E to C across 15 units on file.
Last sale on file: £135,000 in July 2022. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 1997–2022, sale prices on this property compounded at 7% per year. Today's modelled estimate of £155,000 is 14.8% above the 2022 sale price. On a £-per-square-foot basis, the last sale (£199/sq ft) was about 76.4% above the typical sold price in the postcode.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Windows upgraded, improving insulation
Roof insulation improved
Low energy lighting percentage decreased
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
355a has no planning applications on record.
But the area is active
10 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
355a has more than quadrupled in price since its earliest registered sale in 1997.
£155,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.0% per year over 25 years.
£135,000
Growth on file: 7.0% per year over 25 years.
Sales timeline
7 July 2022Most recent
£135,000
+32.4%over 17 years13 April 2005
£102,000
+92.5%over 3 years11 April 2002
£53,000
+112.0%over 4 years17 September 1997
£25,000
Median price across the last 5 sales in PO3 5EQ: £173,000 (2022–2007).
Nearby sales in PO3 5EQ
Versus other Copnor Road homes
On habitable rooms, 355a stands well clear of the street.
EPC Rating
65 (D)
Street avg 58 (D)
Floor Area
63 m²
Street avg 61 m²
CO₂ Emissions
2.6 t/year
Street avg 3.2 t/year
Habitable Rooms
3 rooms
Street avg 2 rooms
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
18/mo
Rising year-on-year across the wider district.
Nearest stop
0.0 km
Green Lane — bus stop.
Closest school
0.3 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
51.5dB

Night-time· 23:00 – 07:00
42.0dB







