3 Mariners Lea, Broadstairs CT10 2QB

Detached house · Built 1996-2002 · 103 m² · Owner-occupied · Boiler and radiators, mains gas

Upgrade Plan

CB for £20,100 · £20,100 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Floor insulation£800 – £1,200£8312.0 yrs+4.8 pts
Band A condensing boiler£2,200 – £3,000£5150+ yrs+3.0 pts
Solar water heating£4,000 – £6,000£6550+ yrs+3.7 pts
Solar photovoltaic panels£9,000 – £14,000£7750+ yrs+4.5 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

£1,238
per year at grade C
£962
per year at grade B

The full plan saves £276 a year — a 1.4% annual return on £20,100.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2012, states £731 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

10 August 2017£316,750
26 April 2013£231,000
11 June 1999£101,950

Estimated today: £402,809 HPI-indexed estimate, not a valuation

Mariners Lea: 29 sales since 1995 · £335,583 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Bromstone Primary School, BroadstairsPrimary0.2 mi
St George's Church of England Foundation SchoolAll-through0.3 miProgress 8 -0.42 · below average (2023/24)
Upton Junior SchoolPrimary0.7 mi
Dane Court Grammar SchoolSecondary0.2 miProgress 8 +0.69 · well above average (2023/24)
The Charles Dickens SchoolSecondary0.4 miProgress 8 +0.22 · above average (2023/24)
The Royal Harbour AcademySecondary1.1 miProgress 8 -1.02 · well below 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.

3.6
crimes a month
29
in the last 12 months
Violence and sexual offences
most common · 48% of the total

Police.uk street-level data for LSOA E01024690, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Mariners Lea

How this home sits against its street.

10
graded homes
68.5
average score
C
most common grade
+0.5
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.