105 Mildred Avenue, Watford WD18 7DU

Semi-Detached house · Built 1900-1929 · 130 m² · Owner-occupied · Boiler and radiators, mains gas

Upgrade Plan

E → B for £29,788 · £9,929 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Hot water cylinder insulation—£15 – £400£2280.9 yrs+6.2 pts
Floor insulation—£800 – £1,200£2673.7 yrs+7.2 pts
Heating controls—£350 – £450£974.1 yrs+2.6 pts · reaches D
Low energy lighting—£80£126.9 yrs+0.3 pts
Band A condensing boiler—£2,200 – £3,000£16415.9 yrs+4.5 pts
Solar water heating—£4,000 – £6,000£20724.2 yrs+5.6 pts
Solid wall insulation—£4,000 – £14,000£28831.2 yrs+7.8 pts · reaches C
Solar photovoltaic panels—£9,000 – £14,000£24746.6 yrs+6.7 pts · reaches B

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

£2,709
per year at grade E
£1,199
per year at grade B

The full plan saves £1,510 a year — a 5.1% annual return on £29,788.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2013, states £1,755 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

31 January 2014£475,000

Estimated today: £828,922 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.