17 Grenville Close, Daventry NN11 4LS

End-Terrace house · Built 1983-1990 · 226 m² · Boiler and radiators, mains gas

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting(optional, beyond C)£20 – £45typical£152.1 yrs+0.3 pts
Heating controls(optional, beyond C)£400typical£1293.1 yrs+2.1 pts
Band A condensing boiler(optional, beyond C)£2,600typical£21712.0 yrs+3.6 pts

Grants verified 20 August 2026. Costs are the register’s indicative ranges, except where marked typical, which this certificate did not price and which are taken instead from comparable homes of the same type. 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

£1,905
per year at grade C
£1,544
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2010, states £1,189 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

31 March 1998£44,000

Estimated today: £222,396 HPI-indexed estimate, not a valuation

Grenville Close: 33 sales since 1995 · £157,800 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
DSLV E-ACT AcademyAll-through0.2 miProgress 8 -0.41 · below average (2023/24)
Abbey CofE AcademyPrimary0.4 mi
St James Infant SchoolPrimary0.6 mi
The Parker E-ACT AcademySecondary0.8 miProgress 8 -0.27 · below average (2023/24)
Campion SchoolSecondary6.7 miProgress 8 +0.17 · average (2023/24)
Ashlawn SchoolSecondary7.9 miProgress 8 -0.08 · 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.

22.7
crimes a month
250
in the last 12 months
Violence and sexual offences
most common · 33% of the total

Police.uk street-level data for LSOA E01027013, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Grenville Close

How this home sits against its street.

21
graded homes
69.2
average score
C
most common grade
+3.8
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.