Flat 1, 31 St Andrews Road, Southsea, PO5 1EP
About Flat 1
Flat 1 is a one-bedroom semi-detached house in Southsea (PO5 1EP). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to before 1900 and council tax band A. At 40 m² this is the smallest unit on EPC record across the building (40–57 m²). The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (July 2025) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in August 2015 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Very Poor to Poor; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 73).
It hasn't traded since November 2003, a hold of 23 years that's notably long for the area. Across 2002–2003, sale prices on this property compounded at -62% per year. Today's modelled estimate of £157,000 sits 65.3% above the 2003 sale of £95,000. At 40 m² it sits well below the postcode median (59 m² across 47 EPCs), making it one of the more compact homes locally.
Know exactly what you're buying at Flat 1
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
- Central heatingYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
More low energy lighting installed
Planning history
Flat 1 has no planning applications on record.
Notable planning nearby
111applications of note in the surrounding area
We flagged 1 thing worth checking at Flat 1
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 1 changed hands twice within eighteen months — unusual for the area.
£157,000
Modelled from EPC, postcode comparables and a sale-price growth of -62.0% per year over 1 year.
£95,000
Growth on file: -62.0% per year over 1 year.
Sales timeline
20 November 2003Most recent
£95,000
-56.8%over 11 months11 December 2002
£220,000
-12.0%11 December 2002
£250,000
Median price across the last 5 sales in PO5 1EP: £180,000 (2022–2019).
Nearby sales in PO5 1EP
Flat 2, 31 St Andrews Road, Southsea, PO5 1EP
Sold Dec 2022
£225,000Flat 2, 33 St Andrews Road, Southsea, PO5 1EP
Sold Mar 2022
£195,000Flat 2, 9 St Andrews Road, Southsea, PO5 1EP
Sold Sept 2021
£175,000Flat 1, 21 St Andrews Road, Southsea, PO5 1EP
Sold Aug 2021
£180,000Flat 5, 9 St Andrews Road, Southsea, PO5 1EP
Sold Feb 2019
£153,000
Everything we know about Flat 1, 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 St Andrews Road homes
Flat 1 outperforms the street on years held by a wide margin.
Price per m²
£2,375
Street avg £2,514
Floor Area
40 m²
Street avg 64 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
1.9 t/year
Street avg 2.7 t/year
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The neighbourhood at a glance
Crime
11/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Elm Grove — bus stop.
Closest school
0.3 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
53.6dB

Night-time· 23:00 – 07:00
42.5dB