21 St. Philips Avenue, Bolton BL3 3AD

Mid-Terrace house · Built 1930-1949 · 86 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

CB for £11,525 · £11,525 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£25£210.5 yrs+0.3 pts
Solar water heating£4,000 – £6,000£4250+ yrs+5.8 pts
Solar photovoltaic panels£5,000 – £8,000£5050+ yrs+6.9 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

£994
per year at grade C
£899
per year at grade B

The full plan saves £95 a year — a 0.8% annual return on £11,525.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2017, states £673 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

26 September 2008£80,000
24 August 2007£100,000
8 September 1998£15,000
31 March 1995£17,000

Estimated today: £134,617 HPI-indexed estimate, not a valuation

St Philips Avenue: 17 sales since 1995

Schools nearby

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

SchoolPhaseDistanceProgress
Sunning Hill Primary SchoolPrimary0.2 mi
The Olive Tree Primary School BoltonPrimary0.2 mi
Clarendon Primary SchoolPrimary0.3 mi
Bolton Muslim Girls SchoolSecondaryunder 0.1 miProgress 8 +1.06 · well above average (2023/24)
University Collegiate SchoolSecondary0.6 miProgress 8 -0.98 · well below average (2023/24)
King's Leadership Academy BoltonSecondary0.6 miProgress 8 +0.14 · 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.

St Philips Avenue

How this home sits against its street.

8
graded homes
62.3
average score
C
most common grade
+10.7
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.