4 Sullivan Road, Tonbridge TN10 4DB

Semi-Detached house · Built 1950-1966 · 93 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

CB for £16,520 · £16,520 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£20£37.3 yrs+0.2 pts
Floor insulation£4,000 – £6,000£6250+ yrs+5.1 pts
Solar water heating£4,000 – £6,000£4850+ yrs+4.0 pts
Solar photovoltaic panels£5,000 – £8,000£5850+ 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

£1,081
per year at grade C
£910
per year at grade B

The full plan saves £171 a year — a 1.0% annual return on £16,520.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2015, states £748 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

8 October 2015£367,500
30 November 2005£250,000
21 August 2001£174,000

Estimated today: £528,382 HPI-indexed estimate, not a valuation

Sullivan Road: 37 sales since 1995 · £489,818 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Woodlands Primary SchoolPrimary0.2 mi
Cage Green Primary SchoolPrimary0.6 mi
Long Mead Community Primary SchoolPrimary1.1 mi
Leigh Academy Hugh ChristieSecondary0.6 miAttainment 8 40.5 · no Progress 8 published
Hadlow Rural Community SchoolSecondary1.6 miProgress 8 -0.08 · average (2023/24)
Hillview School for GirlsSecondary1.8 miProgress 8 +0.37 · 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.

5.7
crimes a month
34
in the last 12 months
Violence and sexual offences
most common · 32% of the total

Police.uk street-level data for LSOA E01024751, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Sullivan Road

How this home sits against its street.

24
graded homes
64.3
average score
D
most common grade
+5.7
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.