Flat A, 10 Cottage Grove, Southsea, PO5 1EN
About Flat A
Flat A is a one-bedroom semi-detached house in Southsea (PO5 1EN). It has a recorded floor area of 28 m² (around 301 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (March 2016) shows a C (score 69), just inside the C band. The latest certificate is from March 2016, so improvements made since then won't be reflected.
At 28 m² it sits well below the postcode median (46 m² across 36 EPCs), making it one of the more compact homes locally. Across 2001–2020, sale prices on this property compounded at 4.5% per year. Today's modelled estimate of £113,000 is 22.2% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£307/sq ft) was about 70% above the typical sold price in the postcode. Sold September 2020 for £92,500.
Know exactly what you're buying at Flat A
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms1
- Bathrooms1
Building
- Heating systemgas
Energy performance
Flat A's carbon output is low for the local stock.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 23 Mar 2026
EPC Rating
Planning history
Flat A has no planning applications on record.
Notable planning nearby
111applications of note in the surrounding area
We flagged 1 thing worth checking at Flat A
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
30-day money-back guarantee
Sales history & valuation
Flat A has more than doubled in price since the earliest registered sale in 2001.
£113,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.5% per year over 19 years.
£92,500
Growth on file: 4.5% per year over 19 years.
Sales timeline
17 September 2020Most recent
£92,500
+131.3%over 18 years9 November 2001
£39,995
Median price across the last 5 sales in PO5 1EN: £305,000 (2023–2022).
Nearby sales in PO5 1EN
26a, Top Flat, Cottage Grove, Southsea, PO5 1EN
Sold Nov 2023
£305,00014 Cottage Grove, Southsea, PO5 1EN
Sold Aug 2023
£335,00018 Cottage Grove, Southsea, PO5 1EN
Sold Mar 2023
£220,00022a, Cottage Grove, Southsea, PO5 1EN
Sold Feb 2022
£350,000Flat 2a, 2 Cottage Grove, Southsea, PO5 1EN
Sold Feb 2022
£130,000
Everything we know about Flat A, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area

Versus other Cottage Grove homes
Price per m² for Flat A runs comfortably ahead of the street norm.
Price per m²
£3,304
Street avg £2,355
Floor Area
28 m²
Street avg 49 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
1.4 t/year
Street avg 2.2 t/year
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The neighbourhood at a glance
Crime
11/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Elm Grove — bus stop.
Closest school
0.1 km
Cottage Grove Primary School and Nursery. 31 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
54.2dB

Night-time· 23:00 – 07:00
43.1dB