5 Oaktree Close, Colden Common, Winchester SO21 1UT

End-Terrace house · Built 1976-1982 · 77 m² · Owner-occupied · Boiler and radiators, mains gas

Upgrade Plan

CB for £17,515 · £17,515 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£15£27.2 yrs+0.2 pts
Floor insulation£800 – £1,200£4721.1 yrs+5.1 pts
Solar water heating£4,000 – £6,000£3750+ yrs+4.0 pts
Solar photovoltaic panels£9,000 – £14,000£4450+ yrs+4.7 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

£948
per year at grade C
£818
per year at grade B

The full plan saves £130 a year — a 0.7% annual return on £17,515.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2014, states £657 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

1 December 2014£249,950
31 October 2003£183,000
9 February 2001£126,000
30 April 1999£68,000

Estimated today: £332,380 HPI-indexed estimate, not a valuation

Oaktree Close: 30 sales since 1995

Schools nearby

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

SchoolPhaseDistanceProgress
Colden Common Primary SchoolPrimaryunder 0.1 mi
Otterbourne Church of England Primary SchoolPrimary1.3 mi
Twyford St Mary's Church of England Primary SchoolPrimary1.6 mi
Thornden SchoolSecondary1.8 miProgress 8 +0.74 · well above average (2023/24)
Crestwood Community SchoolSecondary1.9 miProgress 8 -0.73 · well below average (2023/24)
The Toynbee SchoolSecondary2.5 miProgress 8 +0.20 · 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.

7.3
crimes a month
73
in the last 12 months
Violence and sexual offences
most common · 47% of the total

Police.uk street-level data for LSOA E01023228, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Oaktree Close

How this home sits against its street.

8
graded homes
70
average score
C
most common grade
0.0
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.