11 Cottonwood, Houghton Le Spring DH4 7TA

Detached house · Built 1996-2002 · 105 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

D → B for £9,525 · £4,763 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting—£25£92.7 yrs+0.3 pts
Cavity wall insulation—£1,500 – £500£1566.4 yrs+5.5 pts
Band A condensing boiler—£3,000 – £0£12811.7 yrs+4.5 pts · reaches C
Solar water heating—£6,000 – £0£16218.5 yrs+5.7 pts
Solar photovoltaic panels—£8,000 – £0£19320.7 yrs+6.9 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

£1,821
per year at grade D
£1,173
per year at grade B

The full plan saves £648 a year — a 6.8% annual return on £9,525.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2016, states £1,257 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

16 June 2017£205,000
13 August 2004£194,500
21 December 1999£93,750

Estimated today: £273,248 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.