9 Cosham Park Avenue, Portsmouth, PO6 3BG
About 9 Cosham Park Avenue
9 Cosham Park Avenue is a semi-detached house in Portsmouth (PO6 3BG). It has a recorded floor area of 97 m² (around 1044 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (May 2016) shows a C (score 71). The recommended improvements would push it to B (score 84). The latest certificate is from May 2016, so improvements made since then won't be reflected.
On energy efficiency it sits in the top 10% of properties in this postcode. Last sold in January 2018, so it's been off the market for around 8 years. Across 2016–2018, sale prices on this property compounded at 22.4% per year. Today's modelled estimate of £379,000 is 24.3% above the 2018 sale price.
Everything you need to know about 9 Cosham Park Avenue
The true value, the hidden risks and the full sale history, in one report.
30-day money-back guarantee

Energy performance
9 Cosham Park Avenue ranks among the most efficient homes in the postcode for energy use.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 18 May 2026
EPC Rating
Planning history
9 Cosham Park Avenue has no planning applications on record.
Notable planning nearby
13applications of note in the surrounding area
We flagged 3 things worth checking at 9 Cosham Park Avenue
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Signs of HMO activity in the area
- Larger development activity nearby
- Recent ownership pattern worth a look
30-day money-back guarantee
Sales history & valuation
9 Cosham Park Avenue changed hands twice within eighteen months — unusual for the area.
£379,000
Modelled from EPC, postcode comparables and a sale-price growth of 22.4% per year over 1 year.
£305,000
Growth on file: 22.4% per year over 1 year.
Sales timeline
17 January 2018Most recent
£305,000
+35.0%over 1 year25 July 2016
£226,000
Median price across the last 5 sales in PO6 3BG: £325,000 (2025–2016).
Nearby sales in PO6 3BG
12 Cosham Park Avenue, Portsmouth, PO6 3BG
Sold Nov 2025
£345,0006 Cosham Park Avenue, Portsmouth, PO6 3BG
Sold Jun 2024
£325,0001 Cosham Park Avenue, Portsmouth, PO6 3BG
Sold May 2021
£326,50010 Cosham Park Avenue, Portsmouth, PO6 3BG
Sold Jan 2016
£245,24911 Cosham Park Avenue, Portsmouth, PO6 3BG
Sold Dec 2009
£190,000
Versus other Cosham Park Avenue homes
9 Cosham Park Avenue outperforms the street on epc rating by a wide margin.
Price per m²
£3,144
Street avg £3,402
Floor Area
97 m²
Street avg 110 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.0 t/year
Street avg 5.3 t/year
Everything you need to know about 9 Cosham Park Avenue
The true value, the hidden risks and the full sale history, in one report.
30-day money-back guarantee

Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
9/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
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
55.6dB

Night-time· 23:00 – 07:00
46.1dB






