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1 Onslow Square, Kensington And Chelsea, London, SW7 3NJ
This 110 square metre property in Kensington And Chelsea, London, London carries an energy performance rating of D, in line with typical UK homes. The property is currently listed as a private rental.
Property Type
1st Floor Flat
Bedrooms
2
Bathrooms
2
Floor Area
110 m²
Council Tax
Band G
Property Features
Built Before 1900
Communal Garden
Shared with other residents
En-suite Bathroom
Private bathroom attached to bedroom
Period Features
Original architectural details
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Energy Performance
EPC rating and efficiency details
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 26 Nov 2020
Current Certificate(1 of 2)
Nov 2010
EPC Rating
A
B
C
D
D61
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Average
Windows
Poor
CO2 Emissions
5.2 t/year
Tenure
Rented
Price & History
Transactions and market trends
Estimated value
£1,282,000
How our AI predicts property prices · Accurate to within 10%
Automated estimate only. For an accurate valuation, consult a surveyor or estate agent.
Transaction history
No sales history found
Nearby in SW7 3NJ
Flat 2 23 Onslow Square London SW7 3NJ
Nov 2024
£2,825,000
Flat 12 25 Onslow Square Kensington And Chelsea London SW7 3NJ
Oct 2024
£560,000
Flat 11 25 Onslow Square Kensington And Chelsea London SW7 3NJ
Jul 2023
£1,600,000
Flat 3 23 Onslow Square London SW7 3NJ
May 2023
£2,800,000
Flat 1 17 Onslow Square London SW7 3NJ
Aug 2022
£3,600,000
Flat 1 11 Onslow Square London SW7 3NJ
Mar 2021
£2,300,000
1 / 5
House Price Index
London-2.1%
97.1
Jan 26
UK HPI from HM Land Registry. Baseline: Jan 2015 = 100.
How This Property Compares on Onslow Square
See how this property stacks up against others nearby
Comparing to 35 other flats on this street
EPC Rating
Government energy efficiency score (1–100)
61 (D)/66 (D) avg
Less efficientMore efficient
More efficient than only 34% of similar properties
Floor Area
Total internal floor space
110 m²/104 m² avg
SmallerLarger
Around average
CO₂ Emissions
Annual carbon output from heating, hot water & lighting
5.2 t/year/4.1 t/year avg
Higher emissionsLower emissions
Lower emissions than only 27% of similar properties
Habitable Rooms
Living spaces like bedrooms & living rooms
4 rooms/4 rooms avg
FewerMore
More rooms than 67% of similar properties
Comparisons are based on the most recent EPC data for each property in this postcode. Only similar property types (flats) are compared.
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New sales, price changes, and market updates in this area
About Kensington And Chelsea, London
This property is located in the Royal Borough of Kensington and Chelsea, one of the most densely populated districts in London, featuring a blend of historic and modern architecture.
The Royal Borough of Kensington and Chelsea is an Inner London borough with royal status. It is the smallest borough in London and the second smallest district in England; it is one of the most densely populated administrative regions in the United Kingdom. It includes affluent areas such as Notting Hill, Kensington, South Kensington, Chelsea, and Knightsbridge. Kensington and Chelsea London Borough Council, also known as Kensington and Chelsea Council, is the local authority for the Royal Borough of Kensington.
Places to visit
Road Noise
Average road noise levels for this postcode
Daytime
07:00 – 23:00
58.4dB
Moderate
Night-time
23:00 – 07:00
48.1dB
Low55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4Crime Analysis
13 months of data for London
Total Crimes
129
Monthly Avg
10
Recent Trend
Rising
Most Common
Theft from Person
Crime by Category
Theft from Person29(22%)
Other Theft28(22%)
Violence & Sexual23(18%)
Vehicle Crime19(15%)
Criminal Damage & Arson7(5%)
Robbery6(5%)
Bicycle Theft6(5%)
Public Order4(3%)
Burglary4(3%)
Drugs2(2%)
Other Crime1(1%)
Recent Incidents
Public Order
Dec 2025On or near Rosary Gardens
Other Theft
Nov 2025On or near Raphael Street
Vehicle Crime
Nov 2025On or near Raphael Street
Vehicle Crime
Nov 2025On or near Raphael Street
Burglary
Nov 2025On or near Raphael Street
Vehicle Crime
Nov 2025On or near Rosary Gardens
Data from Police UK • Updated monthly
Local Amenities
Schools and transport links nearby
Nearby Schools
58 within 3kmP
Oratory Roman Catholic Primary School
322m
4 mins
P
Marlborough Primary School
447m
5 mins
P
Our Lady of Victories RC Primary School
480m
6 mins
S
St. Thomas More Language College
716m
9 mins
S
Ada National College for Digital Skills
1.8km
21 mins
S
Chelsea Academy
1.8km
22 mins
Transport Links
30 within 3kmOnslow Square
Bus Stop67m
1 min
South Kensington Stn / Old Brompton Rd
Bus Stop100m
1 min
Pelham Street
Bus Stop108m
1 min
South Kensington Underground Station
Underground127m
2 mins
South Kensington Station
Tram164m
2 mins
Royal Brompton Hosp / Royal Marsden Hosp
Bus Stop265m
3 mins
School data from Dept. for Education • Transport data from NaPTAN
Nearby Property Businesses
Local professionals serving this area
Surveyor
Mason Drage
London
RICS
Surveyor
Imagine Property
London
RICS
Surveyor
Novello Chartered Surveyors
London
RICSResidential
Surveyor
RES Property Surveyors
Stoke
RICSResidential
Surveyor
Scott Davidson
London
RICSResidential
Surveyor
Silver
London
RICSResidential
Surveyor
Ondare
London
RICS
Surveyor
SRVO Property Limited
London
RICSResidential
Map
88 points of interest nearby
Map data from OpenStreetMap • Transport data from NaPTAN • School data from Dept. for Education • Scenic data from Beautifulplaces.ai
Frequently Asked Questions
Common questions about this property