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1 Onslow Mews East, Kensington And Chelsea, London, SW7 3AA

3 planning records
Property type
Mid terrace
Bedrooms
3
Bathrooms
2
Floor area
145 m²
1561 sq ft
Energy rating
D
Score 56
Council tax
Band H
Tenure
Owner Occupied
Overview

About 1 Onslow Mews East

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

1 Onslow Mews East is a three-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW7 3AA). It has a recorded floor area of 145 m² (around 1561 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (May 2022) shows a D (score 56), a step below the typical UK home. Earlier certificates rated it C (February 2011); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Poor and roof efficiency dropped from Average to Very Poor. The recommended improvements would lift it to B (score 85), a 2-band jump.

Today's modelled estimate of £2,704,000 is 16.8% below the 2013 sale of £3,250,000, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£2,082/sq ft) was about 96.5% above the typical sold price in the postcode. At 145 m² it sits well below the postcode median (224 m² across 4 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). 3 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension, a basement excavation and a garage conversion, meaningful when judging how the property has evolved. 13 years since the last transfer (October 2013).

Before you offer

Know exactly what you're buying at 1 Onslow Mews East

Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.

Already flagged here

Signs of HMO activity in the areaLarger development activity nearby
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Valuation

against the asking price

Risks

planning & flood

Sold prices

similar homes nearby

Trends

the local market

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms3
  • Bathrooms2
  • Dining roomYes
  • EnsuiteYes
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

1 Onslow Mews East's carbon output runs well above what efficient homes in the postcode produce.

Current Certificate(1 of 2)
May 2022

EPC Rating

A
B
C
D
D56
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Poor
CO2 Emissions
6.5 t/year
Occupancy
Owner Occupied

Property Improvements

Changes detected from historical EPC data

May 2022from Feb 2011
EPC improved fromC71toD56
Heating Controls
Full ControlFull

Heating controls changed

Hot Water
Very GoodGood

Hot water efficiency decreased

Low Energy Lighting
0%100%

More low energy lighting installed

Planning

Planning history

Applications and permits filed against 1 Onslow Mews East, Kensington And Chelsea, London, SW7 3AA, sourced from the PlanIt planning register.

1 Onslow Mews East has an approved extension on the planning record.

  1. Sept 2019
    BasementFull
    In report

    Creation of single-storey basement extension

    Council
    Thurloe and Smith's Charity
    Extension
    Documents
    22 docs on file
    Reference
    PP/19/03765
    View planning record
  2. Apr 2019
    BasementFull
    In report

    Excavation of basement under footprint of house and 50% of patio area. Creation of flat roof terrace at rear with repositioning of 2no. rooflights and addition of 1no. rooflight. ***WITHDRAWN***

    Council
    Thurloe and Smith's Charity
    Extension
    Documents
    26 docs on file
    Reference
    PP/19/01618
    View planning record
Before you offer

We flagged 2 things worth checking at 1 Onslow Mews East

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.

  • Signs of HMO activity in the area
  • Larger development activity nearby
£9.99£14.99

30-day money-back guarantee

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

1 Onslow Mews East valuation sits well clear of the typical sold price in this postcode.

Current estimate

£2,704,000

Modelled from EPC, postcode comparables.

See how we calculated this
Last sold (2013)

£3,250,000

Recorded with HM Land Registry.

Sales timeline

  1. 6 October 2013Most recent

    £3,250,000

Median price across the last 5 sales in SW7 3AA: £1,950,000 (2015–2003).

Before you offerLaunch offer · save £5

Everything we know about 1 Onslow Mews East, in one report

What it's really worth, what could be wrong, and the planning, sales and area data in full.

What we flagged

  • Signs of HMO activity in the area
  • Larger development activity nearby
£9.99£14.99
Trusted by UK homebuyers
Preview of the full property report
On the street

Versus other Onslow Mews East homes

Four headline reads against 4 similar houses on this street, drawn from the latest EPC and Land Registry data.

1 Onslow Mews East is notably below the street on floor area.

EPC Rating

56 (D)

Street avg 68 (D)

Below

Floor Area

145 m²

Street avg 209 m²

Strongly below

CO₂ Emissions

6.5 t/year

Street avg 6.2 t/year

Below

Habitable Rooms

5 rooms

Street avg 5 rooms

Below
Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the London district page.

Rail-style transport is unusually close for this postcode.

Crime

10/mo

Rising year-on-year across the wider district.

Nearest stop

0.2 km

Onslow Gardens South Kensington — bus stop.

Closest school

0.2 km

Our Lady of Victories RC Primary School. 60 schools nearby.

Go deeper on the local area

The full report breaks down crime, transport links, schools and air quality in depth.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around SW7 3AA from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for SW7 3AA

Daytime· 07:00 – 23:00

59.3dB

Moderate
Night-time road noise heatmap for SW7 3AA

Night-time· 23:00 – 07:00

49.0dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
Map

Everything within walking distance

Schools, transport stops and scenic spots near this property — 90 points of interest in total.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 1 Onslow Mews East, Kensington And Chelsea, London, SW7 3AA. Each answer is also embedded as structured data for search engines.