9 Byron Mews, London NW3 2NQ

Detached flat · Built 1991-1995 · 76 m² · Boiler and radiators, mains gas

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Hot water cylinder insulation(optional, beyond C)£23 – £30typical£1160.2 yrs+4.0 pts
Low energy lighting(optional, beyond C)£15 – £30typical£63.8 yrs+0.2 pts
Band A condensing boiler(optional, beyond C)£2,500 – £2,600typical£8330.6 yrs+2.8 pts

Grants verified 20 August 2026. Costs are the register’s indicative ranges, except where marked typical, which this certificate did not price and which are taken instead from comparable homes of the same type. 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

£947
per year at grade C
£742
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2010, states £591 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

4 October 2010£525,000
2 July 1999£235,000
17 March 1999£201,000
11 January 1996£165,800

Estimated today: £794,550 HPI-indexed estimate, not a valuation

Byron Mews: 148 sales since 1995 · £885,979 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Fleet Primary SchoolPrimaryunder 0.1 mi
Rosary Catholic Primary SchoolPrimary0.2 mi
Gospel Oak Primary SchoolPrimary0.4 mi
William Ellis SchoolSecondary0.6 miProgress 8 -0.17 · average (2023/24)
Parliament Hill SchoolSecondary0.6 miProgress 8 +0.50 · above average (2023/24)
La Sainte Union Catholic Secondary SchoolSecondary0.7 miProgress 8 +0.18 · 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.

21.7
crimes a month
239
in the last 12 months
Anti-social behaviour
most common · 28% of the total

Police.uk street-level data for LSOA E01000887, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Byron Mews

How this home sits against its street.

50
graded homes
72.8
average score
C
most common grade
+0.2
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.