21 Sylvia Close, Basingstoke RG21 3ND

Semi-Detached flat · Built 1950-1966 · 62 m² · Owner-Occupied · Community scheme

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Cavity wall insulation(optional, beyond C)£500 – £1,500£3627.8 yrs+1.0 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

£694
per year at grade C
£658
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2023, states £951 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

24 May 2024£195,000
31 August 2007£160,000
1 February 2001£91,000

Estimated today: £195,798 HPI-indexed estimate, not a valuation

Sylvia Close: 109 sales since 1995 · £176,957 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Fairfields Primary SchoolPrimary0.2 mi
St John's Church of England Voluntary Aided Primary SchoolPrimary0.2 mi
Kings Furlong Junior SchoolPrimary0.5 mi
CranbourneSecondary0.3 miProgress 8 -0.13 · average (2023/24)
The Costello SchoolSecondary0.6 miProgress 8 -0.03 · average (2023/24)
The Blue Coat School BasingstokeSecondary1.0 miAttainment 8 33.1 · no Progress 8 published

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 · 52% of the total

Police.uk street-level data for LSOA E01022481, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Sylvia Close

How this home sits against its street.

40
graded homes
72.7
average score
C
most common grade
+4.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.