Model valuation£417,0008 Busby Close
Local market context
89a, High Street, Cosham, Portsmouth, PO6 3AZ
Property type
Mid terrace
Floor 01
Habitable rooms
4
From EPC
Floor area
68 m²
732 sq ft
Energy rating
C
Score 71
Council tax
Band A
Tenure
Private Rental
About 89a
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
89a is a mid-terrace house in Cosham, Portsmouth, Portsmouth (PO6 3AZ). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to 1930-1949 and council tax band A. At 68 m² this is the 11th smallest of 14 units on EPC record in the building, where floor areas span 49–84 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (October 2020) shows a C (score 71). When first surveyed in March 2009 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Poor to Very Good.
At 68 m² it's 23.6% larger than the typical home in the postcode (55 m² median across 13 EPCs). Its energy rating outperforms most of the postcode (better than 77% of similar EPCs).
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Everything you need to know about 89a
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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.
Current Certificate(1 of 2)
Oct 2020
EPC Rating
A
B
C
C71
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
2.3 t/year
Occupancy
Rented
Certificate validity
Valid until 30 October 2030
Property Improvements
Changes detected from historical EPC data
Oct 2020from Mar 2009
EPC improved fromD67toC71
Low Energy Lighting
15%100%
More low energy lighting installed
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Level 2 HomeBuyer Report
Early 20th century1st Floor FlatEPC C
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Planning history
Applications and permits filed against 89a, High Street, Cosham, Portsmouth, PO6 3AZ, sourced from the PlanIt planning register.
89a 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.
89a 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£155,000
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 3AZ: £120,000 (2025–2019).
Nearby sales in PO6 3AZ
75 High Street, Cosham, Portsmouth, PO6 3AZ
Sold Apr 2025
£85,00085a, High Street, Cosham, Portsmouth, PO6 3AZ
Sold Oct 2023
£115,00091a, High Street, Cosham, Portsmouth, PO6 3AZ
Sold Apr 2022
£120,000101b, High Street, Cosham, Portsmouth, PO6 3AZ
Sold Sept 2021
£225,00087 High Street, Cosham, Portsmouth, PO6 3AZ
Sold Sept 2019
£217,000
Versus other High Street homes
Four headline reads against 13 similar flats on this street, drawn from the latest EPC and Land Registry data.
89a outperforms the street on epc rating by a wide margin.
EPC Rating
71 (C)
Street avg 63 (D)
Floor Area
68 m²
Street avg 61 m²
CO₂ Emissions
2.3 t/year
Street avg 3.3 t/year
Habitable Rooms
4 rooms
Street avg 3 rooms
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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
0.0 km
High Street — bus stop.
Closest school
0.5 km
Court Lane Infant Academy. 25 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 3AZ from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
55.5dB
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 89a, High Street, Cosham, Portsmouth, PO6 3AZ. Each answer is also embedded as structured data for search engines.