21 Margaret Street, Blackburn BB1 2DA

Mid-Terrace house · Built 1900-1929 · 73 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

DC for £4,500 · £4,500 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Solar photovoltaic panels£3,500 – £5,500£1150+ yrs+7.1 pts · reaches C
Solar water heating(optional, beyond C)£4,000 – £6,000£950+ yrs+5.9 pts

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

£606
per year at grade D
£586
per year at grade C

The full plan saves £11 a year — a 0.2% annual return on £4,500.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2023, states £746 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

17 July 2023£72,000
14 September 2007£80,050

Estimated today: £85,683 HPI-indexed estimate, not a valuation

Margaret Street: 56 sales since 1995 · £84,139 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Shadsworth Infant SchoolPrimary0.2 mi
Intack Primary SchoolPrimary0.3 mi
St Antony's RC Primary SchoolPrimary0.4 mi
Our Lady and St John RC High School, a Voluntary AcademySecondary0.6 miAttainment 8 37.2 · no Progress 8 published
Blackburn Central High SchoolSecondary1.3 miProgress 8 -0.20 · average (2023/24)
Tauheedul Islam Boys' High SchoolSecondary1.9 miProgress 8 +1.26 · well above 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.

16.1
crimes a month
177
in the last 12 months
Violence and sexual offences
most common · 41% of the total

Police.uk street-level data for LSOA E01012640, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Margaret Street

How this home sits against its street.

25
graded homes
60.4
average score
D
most common grade
+4.6
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.