25 Sandgate, Swindon SN3 4HH

End-Terrace house · Built 1967-1975 · 84 m² · Boiler and radiators, mains gas

Upgrade Plan

DB for £21,900 · £10,950 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Loft insulation£100 – £350£445.1 yrs+2.2 pts
Floor insulation£800 – £1,200£9310.7 yrs+4.7 pts
Heating controls£350 – £450£3411.8 yrs+1.7 pts
Flat roof insulation£850 – £1,500£7116.6 yrs+3.6 pts · reaches C
Band A condensing boiler£2,200 – £3,000£5745.4 yrs+2.9 pts
Solar water heating£4,000 – £6,000£7250+ yrs+3.6 pts
Solar photovoltaic panels£9,000 – £14,000£8650+ yrs+4.3 pts · reaches B

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

£1,379
per year at grade D
£921
per year at grade B

The full plan saves £458 a year — a 2.1% annual return on £21,900.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2012, states £808 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

22 January 2018£230,000
27 July 2007£146,950
19 January 2000£86,995

Estimated today: £295,796 HPI-indexed estimate, not a valuation

Sandgate: 200 sales since 1995 · £175,182 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Grange Junior SchoolPrimary0.3 mi
Colebrook Junior SchoolPrimary0.4 mi
Colebrook Infant AcademyPrimary0.4 mi
St Joseph's Catholic CollegeSecondary1.1 miProgress 8 +0.37 · above average (2023/24)
The Dorcan AcademySecondary1.2 miProgress 8 -0.39 · below average (2023/24)
Kingsdown SchoolSecondary1.3 miProgress 8 -0.36 · 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.

12
crimes a month
132
in the last 12 months
Violence and sexual offences
most common · 30% of the total

Police.uk street-level data for LSOA E01015550, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Sandgate

How this home sits against its street.

69
graded homes
68.7
average score
C
most common grade
-8.7
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.