Flat 3, 25 Bath Square, Portsmouth PO1 2JL

End-Terrace flat · Built 1950-1966 · 43 m² · Owner-Occupied · Room heaters, electric

Upgrade Plan

FC for £3,675 · £1,225 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
High-retention storage heaters£1,200 – £1,800£7951.9 yrs+26.6 pts · reaches E
Cavity wall insulation£500 – £1,500£3023.3 yrs+10.1 pts · reaches D
Flat roof insulation£850 – £1,500£3063.8 yrs+10.3 pts · reaches C

Grants verified 20 August 2026. Costs are the register’s indicative ranges. Savings are restated at the fuel prices assumed in July 2026. Points per measure are estimated from 19.9 million certificates and rescaled to this home’s own certificate delta; the total is the register’s figure.

Running costs

£2,205
per year at grade F
£802
per year at grade C

The full plan saves £1,403 a year — a 38.2% annual return on £3,675.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2022, states £1,478 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

20 October 2017£275,000

Estimated today: £299,824 HPI-indexed estimate, not a valuation

Bath Square: 23 sales since 1995 · £535,000 average over 10 years

Schools nearby

The schools’ own performance — Progress 8 shows value added, not just raw results.

SchoolPhaseDistanceProgress
St Jude's CofE Primary SchoolPrimary0.4 mi
St George's Beneficial Church of England (Voluntary Controlled) Primary SchoolPrimary0.5 mi
Cottage Grove Primary School and NurseryPrimary1.0 mi
Ark Charter AcademySecondary1.0 miProgress 8 -0.32 · below average (2023/24)
St Edmund's Catholic SchoolSecondary1.1 miProgress 8 +0.66 · well above average (2023/24)
Priory SchoolSecondary1.4 miProgress 8 -0.55 · well below average (2023/24)

Schools from the DfE register, performance from the KS4 performance tables. Progress 8 is a GCSE measure, so primaries have none. Distance is straight-line from the postcode, not a catchment: admission is decided by the school, not by us.

Area context

Police-recorded crime for the wider neighbourhood, not this address. We grade homes, never neighbourhoods — so this is reported as a count, not a rating.

22.5
crimes a month
248
in the last 12 months
Shoplifting
most common · 31% of the total

Police.uk street-level data for LSOA E01033380, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Bath Square

How this home sits against its street.

10
graded homes
57.2
average score
C
most common grade
-32.2
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.