4 First Avenue, Cosham, Portsmouth, PO6 3JH
About 4 First Avenue
4 First Avenue is a semi-detached house in Cosham, Portsmouth, Portsmouth (PO6 3JH). It has a recorded floor area of 83 m² (around 893 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (October 2025) shows a C (score 77), near the top of the C band. When first surveyed in February 2025 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Average to Good, roof efficiency went from Very Poor to Average and lighting went from Average to Good. Main heating runs on electricity.
Its energy rating outperforms most of the postcode (better than 70% of similar EPCs).
Everything you need to know about 4 First Avenue
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
4 First Avenue's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 18 October 2035
Property Improvements
Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls changed
Wall insulation improved
Roof insulation improved
More low energy lighting installed
Solar PV panels (40 kWp) installed
Get a survey for this property
Level 2 HomeBuyer Report
We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.
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Planning history
4 First Avenue has no planning applications on record.
But the area is active
13 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
4 First Avenue has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£274,000
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 PO6 3JH: £300,000 (2026–2018).
Nearby sales in PO6 3JH
22 First Avenue, Cosham, Portsmouth, PO6 3JH
Sold Feb 2026
£303,00020 First Avenue, Cosham, Portsmouth, PO6 3JH
Sold Nov 2022
£313,5007 First Avenue, Cosham, Portsmouth, PO6 3JH
Sold Jul 2022
£300,0002 First Avenue, Cosham, Portsmouth, PO6 3JH
Sold Dec 2020
£259,0009 First Avenue, Cosham, Portsmouth, PO6 3JH
Sold Sept 2018
£270,000
Versus other First Avenue homes
CO₂ Emissions for 4 First Avenue runs comfortably ahead of the street norm.
EPC Rating
77 (C)
Street avg 64 (D)
Floor Area
83 m²
Street avg 83 m²
CO₂ Emissions
0.8 t/year
Street avg 3.3 t/year
Habitable Rooms
5 rooms
Street avg 5 rooms
Everything you need to know about 4 First Avenue
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee

Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
260/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
First Avenue — bus stop.
Closest school
0.3 km
Portsdown Primary School. 22 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
55.4dB

Night-time· 23:00 – 07:00
45.9dB






