Flat 1a, 2 Cottage Grove, Southsea, PO5 1EN
About Flat 1a
Flat 1a is a two-bedroom semi-detached house in Southsea (PO5 1EN). It has a recorded floor area of 53 m² (around 570 sq ft), construction records dating it to 1900-1929 and council tax band A. At 53 m² this is the smallest unit on EPC record across the building (53–140 m²). The latest certificate (April 2021) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in March 2011 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Good, hot-water efficiency went from Poor to Average and main heating went from Poor to Average; while lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 77). Main heating runs on electricity.
At 53 m² it's 21.8% larger than the typical home in the postcode (44 m² median across 36 EPCs). Today's modelled estimate of £182,000 is 23.8% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£258/sq ft) was about 46.7% above the typical sold price in the postcode. Most recent transfer: December 2021 at £147,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at Flat 1a
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
- Bedrooms2
- Bathrooms1
- Dining roomYes
Outside
- Private gardenYes
- DrivewayYes
Building
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Replaced storage heaters with gas boiler
Heating controls upgraded for better temperature management
Hot water system upgraded
Heating system changed
Heating controls changed
Hot water system changed
Windows upgraded, improving insulation
Wall insulation improved
Low energy lighting percentage decreased
Planning history
Flat 1a has no planning applications on record.
Notable planning nearby
111applications of note in the surrounding area
We flagged 1 thing worth checking at Flat 1a
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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£182,000
Modelled from EPC, postcode comparables.
£147,000
Recorded with HM Land Registry.
Sales timeline
21 December 2021Most recent
£147,000
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 1a, 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
CO₂ Emissions for Flat 1a lags the street by a wide margin.
Price per m²
£2,774
Street avg £2,399
Floor Area
53 m²
Street avg 48 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
3.9 t/year
Street avg 2.1 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