Marvells, Ardeley, Stevenage SG2 7AS

Detached house · Built 1983-1990 · 165 m² · Owner-Occupied · Boiler and radiators, LPG

Upgrade Plan

FD for £19,158 · £9,579 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Hot water cylinder insulation£15 – £30£1610.1 yrs+6.6 pts
Low energy lighting£35£84.3 yrs+0.3 pts
Band A condensing boiler£2,200 – £3,000£11522.5 yrs+4.8 pts
Floor insulation£4,000 – £6,000£18826.6 yrs+7.7 pts · reaches E
Solar water heating£4,000 – £6,000£14634.3 yrs+6.0 pts
Solar photovoltaic panels£5,000 – £8,000£17437.4 yrs+7.2 pts · reaches D
Wind turbine(optional, beyond D)£15,000 – £25,000£15650+ yrs+6.4 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

£3,033
per year at grade F
£2,086
per year at grade D

The full plan saves £791 a year — a 4.1% annual return on £19,158.

Energy costs as modelled on the certificate, not a bill. This fuel has too few recent certificates to restate at today's prices.

Sold prices

No sale recorded for this address since 1995.

Schools nearby

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

SchoolPhaseDistanceProgress
Ardeley St Lawrence Church of England Voluntary Aided Primary SchoolPrimary0.8 mi
Walkern Primary SchoolPrimary2.1 mi
Benington Church of England Primary SchoolPrimary2.2 mi
Freman CollegeSecondary3.1 miProgress 8 +0.58 · well above average (2023/24)
The Nobel SchoolSecondary3.8 miProgress 8 +0.38 · above average (2023/24)
Marriotts SchoolSecondary4.3 miProgress 8 -0.37 · below 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.

4.5
crimes a month
36
in the last 12 months
Violence and sexual offences
most common · 36% of the total

Police.uk street-level data for LSOA E01035609, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.