27 Coniston, Southend-On-Sea SS2 6SL

Semi-Detached house · Built 1967-1975 · 73 m² · Owner-Occupied · Warm air, mains gas

Upgrade Plan

EC for £13,148 · £6,574 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Hot water cylinder insulation£15 – £30£1210.2 yrs+5.3 pts
Loft insulation£100 – £350£673.4 yrs+2.9 pts · reaches D
Low energy lighting£25£64.1 yrs+0.3 pts
Cavity wall insulation£500 – £1,500£1059.5 yrs+4.6 pts
Floor insulation£4,000 – £6,000£14135.5 yrs+6.2 pts
Warm air unit replacement£1,250 – £2,500£5037.5 yrs+2.2 pts
Solar water heating£4,000 – £6,000£10945.7 yrs+4.8 pts · reaches C
Solar photovoltaic panels(optional, beyond C)£5,000 – £8,000£13049.8 yrs+5.7 pts

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

£1,764
per year at grade E
£1,034
per year at grade C

The full plan saves £600 a year — a 4.6% annual return on £13,148.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2018, states £1,108 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

20 September 2002£124,000

Estimated today: £374,630 HPI-indexed estimate, not a valuation

Coniston: 187 sales since 1995 · £242,646 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Heycroft Primary SchoolPrimary0.4 mi
Eastwood Primary School & NurseryPrimary0.5 mi
Edwards Hall Primary SchoolPrimary1.1 mi
The Eastwood AcademySecondary0.6 miProgress 8 +0.44 · above average (2023/24)
St Thomas More High SchoolSecondary1.1 miProgress 8 +0.32 · above average (2023/24)
Westcliff High School for Boys AcademySecondary1.2 miProgress 8 +0.93 · 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.

9.5
crimes a month
105
in the last 12 months
Violence and sexual offences
most common · 35% of the total

Police.uk street-level data for LSOA E01015863, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Coniston

How this home sits against its street.

67
graded homes
60.1
average score
D
most common grade
-13.1
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.