Model valuation£417,0008 Busby Close
Local market context
4 Cosham Park Avenue, Portsmouth, PO6 3BG
Property type
Semi-detached
Habitable rooms
6
From EPC
Floor area
100 m²
1076 sq ft
Energy rating
D
Score 60
Council tax
Band C
Tenure
Owner Occupied
About 4 Cosham Park Avenue
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
4 Cosham Park Avenue is a semi-detached house in Portsmouth (PO6 3BG). It has a recorded floor area of 100 m² (around 1076 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (June 2025) shows a D (score 60), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 82), a 2-band jump.
It changed hands recently, sold November 2025 for £310,000.
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Everything you need to know about 4 Cosham Park Avenue
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Signs of HMO activity in the areaLarger development activity nearby
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The data behind every report
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Recommended upgrades on file would lift this property by multiple EPC bands.
Current Certificate
Jun 2025EPC Rating
A
B
C
D
D60
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
4.5 t/year
Occupancy
Owner Occupied
Certificate validity
Valid until 9 June 2035
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Level 2 HomeBuyer Report
Mid 20th centurySemi-Detached HouseEPC D
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Planning history
Applications and permits filed against 4 Cosham Park Avenue, Portsmouth, PO6 3BG, sourced from the PlanIt planning register.
4 Cosham Park Avenue has no planning applications on record.
13
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
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
4 Cosham Park Avenue valuation sits well clear of the typical sold price in this postcode.
Current estimate
See how we calculated this£340,000
Modelled from EPC, postcode comparables.
Last sold (2025)
£310,000
Recorded with HM Land Registry.
Sales timeline
10 November 2025Most recent
£310,000
Median price across the last 5 sales in PO6 3BG: £326,500 (2025–2019).
Nearby sales in PO6 3BG
12 Cosham Park Avenue, Portsmouth, PO6 3BG
Sold Nov 2025
£345,0001 Cosham Park Avenue, Portsmouth, PO6 3BG
Sold Jul 2025
£370,0006 Cosham Park Avenue, Portsmouth, PO6 3BG
Sold Jun 2024
£325,0009 Cosham Park Avenue, Portsmouth, PO6 3BG
Sold Jan 2018
£305,00010 Cosham Park Avenue, Portsmouth, PO6 3BG
Sold Jan 2016
£245,249
Versus other Cosham Park Avenue homes
Four headline reads against 9 similar houses on this street, drawn from the latest EPC and Land Registry data.
Years Held for 4 Cosham Park Avenue lags the street by a wide margin.
Price per m²
£3,100
Street avg £2,915
Floor Area
100 m²
Street avg 105 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.5 t/year
Street avg 4.6 t/year
Property research, connected
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Start your researchSimilar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Portsmouth district page.
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
High Street — bus stop.
Closest school
0.5 km
Court Lane Infant Academy. 26 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
Modelled day and night-time noise levels around PO6 3BG from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
55.6dB
Night-time· 23:00 – 07:00
46.1dB
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4Common questions
The questions buyers, sellers and homeowners most often ask about 4 Cosham Park Avenue, Portsmouth, PO6 3BG. Each answer is also embedded as structured data for search engines.