23a, Norfolk Street, Southsea, PO5 4DR
About 23a
23a is a mid-terrace house in Southsea (PO5 4DR). It has a recorded floor area of 68 m² (around 733 sq ft) and construction records dating it to before 1900. The latest certificate (October 2010) shows a C (score 71). When first surveyed in June 2009 the rating was E, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Average; while window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 84). The latest certificate is from October 2010, so improvements made since then won't be reflected.
Untraded for 22 years, with the last transfer in June 2004. Across 1996–2004, sale prices on this property compounded at 13.3% per year. Today's modelled estimate of £156,000 is 28.9% above the 2004 sale price. On a £-per-square-foot basis, the last sale (£165/sq ft) was about 16.3% above the typical sold price in the postcode.
Know exactly what you're buying at 23a
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
Energy performance
23a's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 12 Oct 2020
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Roof insulation improved
Ventilation system changed
Planning history
23a has no planning applications on record.
Notable planning nearby
18applications of note in the surrounding area
We flagged 2 things worth checking at 23a
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
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Sales history & valuation
Sale price has at least doubled since 1996.
£156,000
Modelled from EPC, postcode comparables and a sale-price growth of 13.3% per year over 8 years.
£121,000
Growth on file: 13.3% per year over 8 years.
Sales timeline
1 June 2004Most recent
£121,000
+1153.9%over 7 years17 June 1996
£9,650
-77.8%22 March 1996
£43,500
Median price across the last 5 sales in PO5 4DR: £525,000 (2025–2023).
Nearby sales in PO5 4DR
Everything we know about 23a, 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
- Larger development activity nearby
Versus other Norfolk Street homes
23a is notably below the street on co₂ emissions.
Price per m²
£1,777
Street avg £1,908
Floor Area
68 m²
Street avg 68 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.7 t/year
Street avg 2.0 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
11/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Green Road — bus stop.
Closest school
0.3 km
Cottage Grove Primary School and Nursery. 29 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
55.0dB
Night-time· 23:00 – 07:00
44.4dB