100 Grand Avenue, Surbiton KT5 9JA

Semi-Detached house · Built 1930-1949 · 95 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

DB for £14,700 · £7,350 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Floor insulation£1,200 – £200£1225.8 yrs+5.8 pts
Solar water heating£6,000 – £0£9431.8 yrs+4.5 pts · reaches C
Solar photovoltaic panels£8,000 – £0£11335.5 yrs+5.4 pts
Solid wall insulation£14,000 – £0£13150+ yrs+6.3 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

£1,435
per year at grade D
£975
per year at grade B

The full plan saves £460 a year — a 3.1% annual return on £14,700.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2019, states £898 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

4 September 2020£668,000
15 August 2017£595,000

Estimated today: £783,807 HPI-indexed estimate, not a valuation

Grand Avenue: 166 sales since 1995 · £691,856 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Grand Avenue Primary and Nursery SchoolPrimary0.3 mi
Christ Church CofE Primary SchoolPrimary0.4 mi
King's Oak Primary SchoolPrimary0.8 mi
The Holy Cross SchoolSecondary0.8 miProgress 8 +0.95 · well above average (2023/24)
Richard Challoner SchoolSecondary0.8 miProgress 8 +0.84 · well above average (2023/24)
The Hollyfield School and Sixth Form CentreSecondary1.0 miProgress 8 +0.28 · 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
58
in the last 12 months
Vehicle crime
most common · 29% of the total

Police.uk street-level data for LSOA E01002920, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Grand Avenue

How this home sits against its street.

79
graded homes
59.7
average score
D
most common grade
-0.7
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.