121 High Street, Portsmouth, PO1 2HW
About 121 High Street
121 High Street is a mid-terrace house in Portsmouth (PO1 2HW). It has a recorded floor area of 58 m² (around 624 sq ft) and construction records dating it to 1976-1982. The latest certificate (August 2025) shows a C (score 74). When first surveyed in October 2011 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Very Poor to Poor and lighting went from Average to Very Good; while window efficiency dropped from Average to Poor.
At 58 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). 2 planning records sit against the property, 0 approved, 0 refused.
Everything you need to know about 121 High Street
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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Wall insulation upgraded
Roof insulation improved
More low energy lighting installed
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Planning history
2 applications on record at 121 High Street, Portsmouth, PO1 2HW
- Dec 2014RenovationFullOutcome in report
Installation of new shopfront to front elevation
- Documents
- 12 docs on file
- Reference
- 14/01348/FUL
- More recent applications — locked
- AdvertisingDec 2014Decision
Unlock 121 High Street, Portsmouth, PO1 2HW's full planning history
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- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full
- The 23 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
121 High Street has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£225,000
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
CO₂ Emissions for 121 High Street runs comfortably ahead of the street norm.
EPC Rating
74 (C)
Street avg 61 (D)
Floor Area
58 m²
Street avg 92 m²
CO₂ Emissions
1.6 t/year
Street avg 4.3 t/year
Habitable Rooms
3 rooms
Street avg 4 rooms
Everything you need to know about 121 High Street
The true value, the hidden risks and the full sale history, in one report.
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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