21, Carlyle Square
21, Carlyle Square
Description & Estimates
According to the public record, 21, Carlyle Square is a period freehold house with 5,844 ft2 of internal area and sits on a 409 m2 plot.
Houses of this size in this area normally have 6 bedrooms with a garden.
Based on available information, and assuming reasonable condition, the estimated sale value for 21, Carlyle Square is £16,171,232 and the estimated rental value is £42,029 per month.
Carlyle Square, London, SW3 is located in the borough of Kensington and Chelsea within the SW3 postal district.
Our Data Sources
21, Carlyle Square has 2 entries in the Land Registry , most recently in August 2025 and a single entry in the EPC database dated February 2023.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 21, Carlyle Square is in very good condition we estimate a sale value of £16,979,794 and a rental value of £44,130 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £15,039,246 and a rental value of £39,087 per month.
Recent Market Change
Over the past 12 months, the estimated sale value of 21, Carlyle Square has fallen by £241,235 (1.5%), while its estimated rental value has moved up by £2,071 per month (4.9%). Based on current estimates, the property offers a gross rental yield of 3.1%.
Plot Size
According to data from HM Land Registry, 21, Carlyle Square sits on a plot of 409 m2.
We have plot size data on 9 out of 9 other houses in the postcode and 21, Carlyle Square sits on the 2nd largest plot.
Energy Efficiency
21, Carlyle Square has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 16 Feb 2023.
The property is connected to mains gas and has some double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 21, Carlyle Square was last sold on 15th August 2025 for £20,000,000 and was recorded as a freehold house.
The property has had 2 sales since 1995.
Since August 2025, the market for similar properties has dropped by 36.1%.
- Sold Aug 2025£20,000,000
- Sold Nov 2010£13,600,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 3 sales of properties similar to 21, Carlyle Square within a radius of 330 metres over the last 2 years.
The most recent example is 22, Chelsea Square, London, SW3 6LF, a freehold house which sold for £18,600,000 on the 24th October 2025.
Read more about house prices in SW3.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Carlyle Square, London, SW3 has a total of 44 addresses. According to our analysis of all the public data, 21, Carlyle Square is the 2nd largest and the 2nd most expensive property on the street.
When compared to the postcode district it is £14.092m more expensive than the average property in SW3.
More reading links
Schools Nearby
- 400mOratory Roman Catholic Primary School
- 500mPark Walk Primary School
- 700mChrist Church CofE Primary School
- 1.0kmSt. Thomas More Language College
- 1.2kmChelsea Academy
- 1.4kmSaint John Bosco College
More reading links
Public Transport Nearby
The closest station to 21, Carlyle Square is South Kensington station, which is 700 metres away.
- 700mSouth Kensington
- 1.0kmGloucester Road
- 1.3kmSloane Square
Available Internet Speeds
According to recent data from Ofcom, superfast broadband is available in this area.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be very low.
