123a, High Street, Portsmouth, PO1 2HW
About 123a
123a is a mid-terrace house in Portsmouth (PO1 2HW). It has a recorded floor area of 181 m² (around 1948 sq ft) and construction records dating it to 1900-1929. The latest certificate (January 2025) shows a D (score 58), a step below the typical UK home. When first surveyed in February 2015 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Poor to Average and hot-water efficiency went from Poor to Good. The recommended improvements would push it to C (score 79).
At 181 m² the property is well over the postcode median (76 m² across 21 EPCs), placing it in the larger end of the local stock.
Everything you need to know about 123a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
123a's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system upgraded
Window efficiency improved
Wall insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £1,155 · Includes VAT
Planning history
123a 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
123a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£654,000
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
EPC Rating for 123a runs comfortably ahead of the street norm.
EPC Rating
58 (D)
Street avg 53 (E)
Floor Area
181 m²
Street avg 213 m²
CO₂ Emissions
7.5 t/year
Street avg 9.3 t/year
Habitable Rooms
6 rooms
Street avg 7 rooms
Everything you need to know about 123a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
Similar properties nearby
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