Mellyn Cottage, Back Road, Calstock PL18 9QL

Semi-Detached house · Built before 1900 · 154 m² · Owner-Occupied · Air source heat pump, radiators, electric

Upgrade Plan

FD for £13,525 · £6,763 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Loft insulation£100 – £350£2630.9 yrs+4.1 pts
Heating controls£350 – £450£2022.0 yrs+3.2 pts
Floor insulation£800 – £6,000£5536.1 yrs+8.7 pts · reaches E
Solar photovoltaic panels£3,500 – £5,500£5128.8 yrs+8.0 pts
Solar water heating£4,000 – £6,000£42911.6 yrs+6.7 pts · reaches D
Solid wall insulation(optional, beyond D)£4,000 – £14,000£59815.0 yrs+9.4 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

£5,160
per year at grade F
£2,602
per year at grade D

The full plan saves £1,960 a year — a 14.5% annual return on £13,525.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2021, states £3,411 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

26 June 2009£272,500
17 August 2007£342,000
30 July 2003£182,500
9 September 1999£110,000

Estimated today: £449,887 HPI-indexed estimate, not a valuation

Back Road: 15 sales since 1995 · £223,625 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Calstock Community Primary SchoolPrimaryunder 0.1 mi
Bere Alston Primary AcademyPrimary1.1 mi
Copper Valley Infant and Nursery AcademyPrimary1.6 mi
Tavistock CollegeSecondary3.8 miProgress 8 -0.20 · average (2023/24)
Callington Community CollegeSecondary4.7 miProgress 8 -0.28 · below average (2023/24)
Sir John Hunt Community Sports CollegeSecondary6.1 miProgress 8 -0.10 · 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.

4
crimes a month
40
in the last 12 months
Violence and sexual offences
most common · 52% of the total

Police.uk street-level data for LSOA E01018755, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Back Road

How this home sits against its street.

7
graded homes
33.1
average score
F
most common grade
-6.1
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.