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Get started20 Petersham Mews is a mid-terrace house in Kensington And Chelsea, London, London (SW7 5NR). It has a recorded floor area of 161 m² (around 1733 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (February 2020) shows a D (score 55), a step below the typical UK home. Earlier certificates rated it C (July 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Very Poor and roof efficiency dropped from Good to Very Poor. The recommended improvements would lift it to B (score 81), a 2-band jump.
At 161 m² the property is well over the postcode median (89 m² across 23 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.
20 Petersham Mews's carbon output runs well above what efficient homes in the postcode produce.
Insertion of flush conservation rooflights to front and rear roof slopes; lowering of first floor front window sill; alterations to windows to first floor rear elevation; and alterations to flush rooflights to flat roof over ground floor at rear. (Certificate of Lawful Proposed Use or Development)
20 Petersham Mews has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£3,000,000
Modelled from EPC, postcode comparables.
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
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On epc rating, 20 Petersham Mews runs well behind the street norm.
EPC Rating
55 (D)
Street avg 67 (D)
Floor Area
161 m²
Street avg 184 m²
CO₂ Emissions
7.6 t/year
Street avg 5.7 t/year
Rail-style transport is unusually close for this postcode.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Queens Gate Terrace — bus stop.

Daytime· 07:00 – 23:00
58.1dB

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Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Realignment of the bow window at ground floor level to the front elevation together with the installation of a balcony at first floor level to front elevation
Median price across the last 5 sales in SW7 5NR: £2,050,000 (2025–2021).
The Cottage Petersham Mews Kensington And Chelsea London
Sold Nov 2025
14 Petersham Mews Kensington And Chelsea London
Sold Oct 2024
4 Petersham Mews Kensington And Chelsea London
Sold Sept 2024
21 Petersham Mews Kensington And Chelsea London
Sold Aug 2024
3 Petersham Mews Kensington And Chelsea London
Sold Nov 2021
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Plus much more
Comparable sales, transport, crime, schools and more

Habitable Rooms
6 rooms
Street avg 5 rooms
SW7 5LT
Closest school
0.6 km
Our Lady of Victories RC Primary School. 67 schools nearby.
Night-time· 23:00 – 07:00
47.3dB