Flat 4, 124 High Street, Portsmouth, PO1 2HW
About Flat 4
Flat 4 is a semi-detached house in Portsmouth (PO1 2HW). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to 1996-2002 and council tax band C. At 51 m² this is the smallest unit on EPC record across the building (51–76 m²). The building's EPC ratings span D to C, with this unit at the top. On EPC score it ranks first in the building (77 versus a worst of 68). The latest certificate (June 2023) shows a C (score 77), near the top of the C band. The rating has held steady at C across 2 certificates since September 2009. Between certificates, wall efficiency went from Average to Good, roof efficiency went from Poor to Good and lighting went from Poor to Very Good.
At 51 m² it sits well below the postcode median (83 m² across 21 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 71% of similar EPCs).
Energy performance
Flat 4's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Wall insulation improved
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Planning history
Flat 4 has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
Flat 4 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£212,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in PO1 2HW: £585,000 (2022–2019).
Nearby sales in PO1 2HW
Versus other High Street homes
On epc rating, Flat 4 stands well clear of the street.
EPC Rating
77 (C)
Street avg 60 (D)
Floor Area
51 m²
Street avg 92 m²
CO₂ Emissions
1.3 t/year
Street avg 4.3 t/year
Habitable Rooms
3 rooms
Street avg 4 rooms
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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
Portsmouth Grammar School — bus stop.
Closest school
0.2 km
St Jude's CofE Primary School. 29 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
52.3dB

Night-time· 23:00 – 07:00
43.6dB







