83 Timber Mill, Southwater, Horsham RH13 9SP

Mid-Terrace house · Built 1983-1990 · 66 m² · Boiler and radiators, mains gas

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Loft insulation(optional, beyond C)£225typical£249.5 yrs+0.9 pts
Heating controls(optional, beyond C)£400typical£1822.1 yrs+0.7 pts
Band A condensing boiler(optional, beyond C)£2,600typical£3150+ yrs+1.2 pts
Solar water heating(optional, beyond C)£5,000typical£3950+ yrs+1.5 pts
Solar photovoltaic panels(optional, beyond C)£4,500 – £9,000typical£4650+ yrs+1.8 pts
Double glazing(optional, beyond C)£1,200 – £4,900typical£1850+ yrs+0.7 pts

Grants verified 20 August 2026. Costs are the register’s indicative ranges, except where marked typical, which this certificate did not price and which are taken instead from comparable homes of the same type. 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

£928
per year at grade C
£753
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2010, states £572 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

22 July 2016£310,000
27 April 2011£210,000

Estimated today: £378,519 HPI-indexed estimate, not a valuation

Timber Mill: 264 sales since 1995 · £317,368 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Southwater Junior AcademyPrimary0.1 mi
Southwater Infant AcademyPrimary0.1 mi
Castlewood Primary SchoolPrimary0.2 mi
Tanbridge House SchoolSecondary2.6 miProgress 8 +0.40 · above average (2023/24)
The Forest SchoolSecondary2.9 miNot in the KS4 performance tables
Millais SchoolSecondary3.1 miProgress 8 +0.22 · above 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.

7.2
crimes a month
79
in the last 12 months
Violence and sexual offences
most common · 37% of the total

Police.uk street-level data for LSOA E01031683, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Timber Mill

How this home sits against its street.

88
graded homes
66.6
average score
D
most common grade
+4.4
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.