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Get startedFlat 1, 40 High Street, Cosham, Portsmouth, PO6 3AG
About Flat 1
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
Flat 1 is an end-of-terrace house in Cosham, Portsmouth, Portsmouth (PO6 3AG). It has a recorded floor area of 61 m² (around 657 sq ft) and construction records dating it to 1930-1949. At 61 m² this is the largest unit on EPC record across the building (44–61 m²). On EPC score it ranks last in the building (43 versus a best of 50). The latest certificate (March 2017) shows an E (score 43), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 69), a 2-band jump. Main heating runs on electricity.
At 61 m² it's 19.6% larger than the typical home in the postcode (51 m² median across 3 EPCs).
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.
EPC Rating
A
B
C
D
E
E43
F
G
Main Heating
Electric
Main Fuel
Electric
Hot Water
Very Poor
Windows
Good
CO2 Emissions
3.5 t/year
Occupancy
Rented
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Flat 1 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
Current estimate
See how we calculated this£161,000
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.
Launch offer · 33% off
The complete analysis of Flat 1, 40 High Street, Cosham, Portsmouth, PO6 3AG
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed AI analysis
An AI-written breakdown of everything that matters
Versus other High Street homes
Four headline reads against 3 similar flats on this street, drawn from the latest EPC and Land Registry data.
On epc rating, Flat 1 runs well behind the street norm.
EPC Rating
43 (E)
Street avg 48 (E)
Floor Area
61 m²
Street avg 51 m²
CO₂ Emissions
3.5 t/year
Street avg 3.3 t/year
Similar 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
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
High Street — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around PO6 3AG from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
55.3dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 54 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about Flat 1, 40 High Street, Cosham, Portsmouth, PO6 3AG. Each answer is also embedded as structured data for search engines.
