13 Belsize Mews, London, NW3 5AT
About 13 Belsize Mews
13 Belsize Mews is a three-bedroom semi-detached house in London (NW3 5AT). It has a recorded floor area of 135 m² (around 1453 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (September 2024) shows a D (score 61), on the cusp of jumping into the C band. When first surveyed in January 2013 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 72). The home occupies a cul-de-sac position.
At 135 m² it's 15.4% larger than the typical home in the postcode (117 m² median across 11 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 73% of similar EPCs). Across 2003–2013, sale prices on this property compounded at 5.9% per year. Today's modelled estimate of £1,312,000 is 45.8% above the 2013 sale price. On a £-per-square-foot basis, the last sale (£619/sq ft) was about 31.8% above the typical sold price in the postcode. Last changed hands 13 years ago, in July 2013. 4 planning records sit against the property, 1 approved, 2 refused.
Know exactly what you're buying at 13 Belsize Mews
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
- Bathrooms2
Outside
- Cul-de-sacYes
Building
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Single glazing replaced with double or better glazing
More low energy lighting installed
Planning history
- Nov 2021ConditionsIn report
Details of new door pursuant to condition 2 of planning permission 2020/5948/P granted 08/04/2021 for 'Replacement of existing kitchen window on first floor at rear with door to enable access to flat roof (for maintenance purposes)'
- Documents
- 3 docs on file
- Reference
- 2021/3043/P
- Nov 2020ExtensionFullIn report
Extension: Single storey · Rear of property
Erection of a single storey extension and formation of roof terrace at first floor level at 13 Belsize Mews; and relocation of the existing plant equipment at first floor associated with the ground floor restaurant at 29 Belsize Lane.
- Documents
- 14 docs on file
- Reference
- 2020/0428/P
We flagged 1 thing worth checking at 13 Belsize Mews
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
13 Belsize Mews valuation sits well clear of the typical sold price in this postcode.
£1,312,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.9% per year over 10 years.
£900,000
Growth on file: 5.9% per year over 10 years.
Sales timeline
4 July 2013Most recent
£900,000
+80.0%over 10 years9 April 2003
£500,000
Median price across the last 5 sales in NW3 5AT: £1,150,000 (2025–2009).
Nearby sales in NW3 5AT
8 Belsize Mews, Camden, London, NW3 5AT
Sold Apr 2025
£1,610,0003 Belsize Mews, Camden, London, NW3 5AT
Sold Aug 2017
£1,650,0009 Belsize Mews, Camden, London, NW3 5AT
Sold Nov 2015
£1,070,00014 Belsize Mews, London, NW3 5AT
Sold May 2011
£770,0004 Belsize Mews, Camden, London, NW3 5AT
Sold May 2009
£1,150,000
Everything we know about 13 Belsize Mews, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Belsize Village — bus stop.
Closest school
0.4 km
Rosary Catholic Primary School. 62 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
53.0dB

Night-time· 23:00 – 07:00
42.2dB