20 St. Marys Close, Grays RM17 6HY

Semi-Detached house · Built 1983-1990 · 50 m² · Boiler and radiators, mains gas

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting(optional, beyond C)£20 – £50typical£216.9 yrs+0.1 pts
Band A condensing boiler(optional, beyond C)£2,600typical£2950+ yrs+1.3 pts
Solar water heating(optional, beyond C)£5,000typical£3750+ yrs+1.7 pts
Solar photovoltaic panels(optional, beyond C)£4,500 – £9,000typical£4450+ yrs+2.0 pts
Wind turbine(optional, beyond C)£2,750 – £20,000typical£3950+ yrs+1.8 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

£817
per year at grade C
£666
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2009, states £493 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

21 December 2010£154,500
1 April 2010£157,000
28 May 2004£142,500
17 August 2001£93,000
31 January 1996£49,995

Estimated today: £318,957 HPI-indexed estimate, not a valuation

St Marys Close: 74 sales since 1995 · £199,636 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Thameside Primary SchoolPrimary0.2 mi
Quarry Hill AcademyPrimary0.5 mi
Little Thurrock Primary SchoolPrimary0.8 mi
Grays Convent High SchoolSecondary0.6 miProgress 8 +0.76 · well above average (2023/24)
The Hathaway AcademySecondary1.0 miProgress 8 -0.38 · below average (2023/24)
The Gateway AcademySecondary1.1 miProgress 8 +0.07 · 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 · 42% of the total

Police.uk street-level data for LSOA E01015969, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

St Marys Close

How this home sits against its street.

14
graded homes
69.4
average score
C
most common grade
+1.6
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.