15 Hartwort Close, Walnut Tree, Milton Keynes MK7 7LJ

Detached house · Built 1983-1990 · 70 m² · Rented (Private) · Boiler and radiators, mains gas

Upgrade Plan

CB for £5,500 · £5,500 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Floor insulation£800 – £1,200£3726.7 yrs+5.6 pts
Solar photovoltaic panels£3,500 – £5,500£3550+ yrs+5.1 pts · reaches B
Solar water heating(optional, beyond B)£4,000 – £6,000£2950+ yrs+4.3 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

£961
per year at grade C
£860
per year at grade B

The full plan saves £72 a year — a 1.3% annual return on £5,500.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2022, states £570 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

16 June 2021£260,000
23 December 2002£140,000
5 July 1995£50,000

Estimated today: £305,598 HPI-indexed estimate, not a valuation

Schools nearby

No school in the register within reach of this postcode.

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