Are you a property professional?Get qualified leads from motivated homeowners.
Get started91a, High Street, Cosham, Portsmouth, PO6 3AZ
4 sales on record
About 91a
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
91a is a mid-terrace house in Cosham, Portsmouth, Portsmouth (PO6 3AZ). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (April 2021) shows a D (score 66), on the cusp of jumping into the C band. Earlier certificates rated it C (May 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Good; while roof efficiency dropped from Good to Average. The recommended improvements would push it to C (score 72). At 55 m² this is the 5th smallest of 13 units on EPC record in the building, where floor areas span 32–84 m². The building's EPC ratings span E to C across 13 units on file.
Sale prices here have outpaced Portsmouth HPI: 4% per year against 0% for the wider region. Today's modelled estimate of £138,000 is 15% above the 2022 sale price. Most recent transfer: April 2022 at £120,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
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)
Apr 2021
EPC Rating
A
B
C
D
D66
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
2.4 t/year
Occupancy
Owner Occupied
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Sale price has at least doubled since 1996.
Current estimate
See how we calculated this£138,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.0% per year over 26 years.
Last sold (2022)
£120,000
Growth on file: 4.0% per year over 26 years.
Sales timeline
Launch offer · 33% off
The complete analysis of 91a, High Street, Cosham, Portsmouth, PO6 3AZ
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 12 similar flats on this street, drawn from the latest EPC and Land Registry data.
91a is notably below the street on years held.
Price per m²
£2,182
Street avg £2,602
Floor Area
55 m²
Street avg 58 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
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 3AZ from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
55.5dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 55 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about 91a, High Street, Cosham, Portsmouth, PO6 3AZ. Each answer is also embedded as structured data for search engines.
