12 Glenthorne Road, Portsmouth, PO3 5DN
About 12 Glenthorne Road
12 Glenthorne Road is an end-of-terrace house in Portsmouth (PO3 5DN). It has a recorded floor area of 127 m² (around 1367 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (June 2022) shows an E (score 49), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 77), a 2-band jump.
Held since November 2001 — that's 25 years off the open market, well above the local norm. At 127 m² the property is well over the postcode median (95 m² across 16 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £314,000 sits 241.3% above the 2001 sale of £92,000. On a £-per-square-foot basis, the last sale (£67/sq ft) was about 62.4% below the postcode norm. 3 planning records sit against the property, 0 approved, 1 refused.
Energy performance
12 Glenthorne Road sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
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Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
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Planning history
3 applications on record at 12 Glenthorne Road, Portsmouth, PO3 5DN
- Aug 2004Loft ConversionFullOutcome in report
ALTERATIONS TO ROOF TO FORM GABLE AND CONSTRUCTION OF DORMERS TO FRONT AND REAR ROOF SLOPES
- Documents
- 4 docs on file
- Reference
- A*38832/AA
- More recent applications — locked
- ApplicationSept 2019Decision
- FullOct 2004Decision
Unlock 12 Glenthorne Road, Portsmouth, PO3 5DN's full planning history
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- Every decision — granted, refused or withdrawn (3 on record)
- All 3 applications on this property in full, plus 10 notable nearby
- The 34 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
12 Glenthorne Road's estimated value is more than triple its earliest registered sale price (2001).
£314,000
Modelled from EPC, postcode comparables.
£92,000
Recorded with HM Land Registry.
Sales timeline
2 November 2001Most recent
£92,000
Median price across the last 5 sales in PO3 5DN: £305,000 (2025–2023).
Nearby sales in PO3 5DN
30 Glenthorne Road, Portsmouth, PO3 5DN
Sold Jan 2025
£305,00070 Glenthorne Road, Portsmouth, PO3 5DN
Sold Sept 2024
£275,00018 Glenthorne Road, Portsmouth, PO3 5DN
Sold Aug 2024
£340,00066 Glenthorne Road, Portsmouth, PO3 5DN
Sold Mar 2023
£340,00024 Glenthorne Road, Portsmouth, PO3 5DN
Sold Mar 2023
£265,000
Versus other Glenthorne Road homes
Price per m² for 12 Glenthorne Road lags the street by a wide margin.
Price per m²
£724
Street avg £2,479
Floor Area
127 m²
Street avg 97 m²
Habitable Rooms
8 rooms
Street avg 5 rooms
CO₂ Emissions
7.2 t/year
Street avg 3.7 t/year
Similar properties nearby
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
18/mo
Rising year-on-year across the wider district.
Nearest stop
0.3 km
Copythorn Road — bus stop.
Closest school
0.4 km
Copnor Primary School. 41 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
50.8dB

Night-time· 23:00 – 07:00
40.5dB







