12 Hillside, Mendham, Harleston IP20 0JF

Semi-Detached house · Built 1950-1966 · 104 m² · Owner-Occupied · Boiler and radiators, LPG

Upgrade Plan

DC for £11,000 · £11,000 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Cavity wall insulation£500 – £1,500£1238.2 yrs+5.6 pts
Floor insulation£4,000 – £6,000£16430.5 yrs+7.5 pts
Solar water heating£4,000 – £6,000£12739.3 yrs+5.8 pts · reaches C

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

£1,313
per year at grade D
£899
per year at grade C

The full plan saves £414 a year — a 3.8% annual return on £11,000.

Energy costs as modelled on the certificate, not a bill. This fuel has too few recent certificates to restate at today's prices.

Sold prices

18 August 2017£230,000
24 July 2003£130,000
8 December 2000£79,950
3 November 1999£68,000

Estimated today: £279,366 HPI-indexed estimate, not a valuation

Hillside: 8 sales since 1995 · £237,333 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Mendham Primary SchoolPrimary1.3 mi
The Harleston Sancroft Academy (a 3-16 Church of England School)All-through2.1 miProgress 8 +0.04 · average (2023/24)
Fressingfield Church of England Primary SchoolPrimary2.5 mi
Stradbroke High SchoolSecondary5.2 miProgress 8 +0.37 · above average (2023/24)
Bungay High SchoolSecondary6.5 miProgress 8 +0.08 · average (2023/24)
Long Stratton High SchoolSecondary8.6 miProgress 8 +0.54 · well 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.

6.4
crimes a month
45
in the last 12 months
Violence and sexual offences
most common · 29% of the total

Police.uk street-level data for LSOA E01030053, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Hillside

How this home sits against its street.

3
graded homes
51.7
average score
D
most common grade
+3.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.