12 Gloucester Square
W2 2TB
- Terraced
- Freehold
- 9 bedrooms (estimate)
- 5,382 sq ft
- EPC C
What the sales records show
From its recent sale£5,149,000
Range £4,791,000 to £5,507,000
Since last sale
−£501,000
−8.9% since Sept 2024, −4.2% a year
Rank in W2 2TB
1st of 16
Postcode average £2,511,688
There is no floor area on record, so this is the home's last sale moved from September 2024 to August 2026 by the official UK House Price Index for Kensington and Chelsea, with the range widened the older the sale. It cannot see condition, layout or recent work, so it is not a valuation.
In short
12 Gloucester Square is a 9 bedroom freehold terraced in W2 of about 5,382 sq ft.
There is no floor area on record, so its last sale has been moved to today by the official price index for Kensington and Chelsea: £4,791,000 to £5,507,000, about £5,149,000 in the middle.
That makes it the 1st highest of the 16 homes we can compare in W2 2TB, where the middle figure averages £2,511,688.
It last sold for £5,650,000 in September 2024; the price index suggests it has lost about £501,000 since, roughly −4.2% a year.
Across Kensington and Chelsea, average prices fell 13.8% in the year to August 2026.
Where in the range would yours sell?
Condition and improvements usually decide it, and only someone who sees the home can say.
Lower end
£4,791,000
Middle
£5,149,000
Upper end
£5,507,000
Done work since the records were made? Claim your home and tell us, or ask local agents where yours sits.
The street
Gloucester Square and its sales
12 Gloucester Square on the map
This home, the completed sales its figure is worked out from, and the other sales on Gloucester Square. Choose a pin for the address, size and date.
The Land Registry records a sale by its postcode, so pins sit at the postcode, close to the home, not on its doorstep. Map: contains OS data © Crown copyright and database rights 2026.
How 12 Gloucester Square compares with Gloucester Square
Against the 7 completed sales on the street in the last two years
Price
- Its middle figure of £5,149,000 is 72% above the street's median sale price of £3,000,000.
- 7 of those 7 sales completed for less than this home's middle figure, and 0 for the same or more.
A comparison of completed sales, not a valuation: it cannot see condition, layout or work done since a home last sold.
Sales activity on Gloucester Square
Completed sales registered with HM Land Registry, by quarter
- Sales in two years
- 7
- Average price
- £2,707,143
- Lowest
- £1,250,000
- Highest
- £3,700,000
| Quarter | Sales | Median price |
|---|---|---|
| Q1 2025 | 2 | £3,350,000 |
| Q2 2025 | 1 | £3,050,000 |
| Q3 2025 | 0 | – |
| Q4 2025 | 0 | – |
| Q1 2026 | 2 | £2,000,000 |
| Q2 2026 | 0 | – |
| Q3 2026 | 0 | – |
| Q4 2026 | 0 | – |
| Type of home | Share of sales | Median price | Per sq ft |
|---|---|---|---|
| Flats | 100% (7) | £3,000,000 | – |
Completed sales on Gloucester Square
Every sale in the last two years. Choose an address to see that home's page.
| Address | Sold | Price | Type | Size | Per sq ft |
|---|---|---|---|---|---|
| Flat 1, 13 - 14 Gloucester SquareW2 2TB | Feb 2026 | £1,250,000 | Flat | – | – |
| Flat 3, Chelwood House Gloucester SquareW2 2SY | Jan 2026 | £2,750,000 | Flat | – | – |
| Flat 28, Chelwood House Gloucester SquareW2 2SZ | Jun 2025 | £3,050,000 | Flat | – | – |
| Flat 9, Chelwood House Gloucester SquareW2 2SY | Feb 2025 | £3,700,000 | Flat | – | – |
| Flat 25, Chelwood House Gloucester SquareW2 2SZ | Feb 2025 | £3,000,000 | Flat | – | – |
| Flat 8, Chelwood House Gloucester SquareW2 2SY | Nov 2024 | £2,000,000 | Flat | – | – |
| Flat 31, Chelwood House Gloucester SquareW2 2SZ | Nov 2024 | £3,200,000 | Flat | – | – |
Energy
How efficient the home is
Energy performance certificate
From the official register for 12 Gloucester Square, lodged 25 November 2015.
Rating now
C69 points
Could reach
C79 points
10 points higher with the improvements below
- Built
- 1900–1929
- Solar panels
- None recorded
What the assessor found
Each part of the home, with the certificate's own energy efficiency rating.
Walls
Solid brick, as built, no insulation (assumed)
Very poorRoof
Flat, no insulation (assumed)
Very poorFloor
Suspended, no insulation (assumed)
Not rated on the certificate
Windows
Fully double glazed
GoodHeating
Boiler and radiators, mains gas
GoodHeating controls
Programmer and room thermostat
AverageHot water
From main system, no cylinder thermostat
AverageLighting
Low energy lighting in 57% of fixed outlets
Good
Estimated running costs
A year, now and after the recommended improvements.
£790 a year less after the improvements
Heating
Hot water
Lighting
The assessor's estimates at the energy prices in use when the certificate was made (2015), for a typical household. Today's bills will differ.
Improvements the certificate recommends
In the certificate's order. Each rating assumes the steps before it are done.
- 1
50 mm internal or external wall insulation
Typical cost £4,000–£14,000 · saves about £495 a year
Rating after74C - 2
Low energy lighting for all fixed outlets
Typical cost £95 · saves about £55 a year
Rating after74C - 3
Hot water cylinder thermostat
Typical cost £200–£400 · saves about £128 a year
Rating after76C - 4
Upgrade heating controls
Typical cost £350–£450 · saves about £110 a year
Rating after77C - 5
Solar photovoltaic panels, 2.5 kWp
Typical cost £5,000–£8,000 · saves about £269 a year
Rating after79C
Costs and savings are the certificate's own, as estimated when it was made.
History
What it has sold for
Sale history
Every sale of this home registered with HM Land Registry since 1995
| Sold | Price paid | Change | A year |
|---|---|---|---|
| September 2024 | £5,650,000 | −13.9% | −3.7% |
| September 2020 | £6,560,000 | +798.6% | +16.0% |
| December 2005 | £730,000 | +2.8% | +0.4% |
| February 1999 | £710,000 | +57.8% | +31.4% |
| June 1997 | £450,000 | First sale | – |
Nearby
Neighbours and the sales behind the figure
Homes in W2 2TB
Ranked by what comparable sales show. Choose one to see its page.
Recent sales of terraced homes nearby
The closest sales of the same type in the last two years, registered with HM Land Registry. Choose one to see its page.
| Home | Price | Sold | Size | Per sq ft | Away |
|---|---|---|---|---|---|
| 7 Radnor MewsW2 2SA · Terraced | £2,175,000 | Jan 2025 | – | – | < 0.1 mi |
| 8 Sussex SquareW2 2SJ · Terraced | £3,000,000 | Mar 2025 | – | – | 0.1 mi |
| 26 Hyde Park Gardens MewsW2 2NX · Terraced | £2,350,000 | Jan 2025 | – | – | 0.1 mi |
| 29 Bathurst MewsW2 2SB · Terraced | £1,550,000 | Aug 2026 | – | – | 0.1 mi |
| 61 Bathurst MewsW2 2SB · Terraced | £2,550,000 | Mar 2025 | – | – | 0.1 mi |
| 14 Somers CrescentW2 2PN · Terraced | £2,600,000 | May 2026 | – | – | 0.1 mi |
| 9 Somers CrescentW2 2PN · Terraced | £2,100,000 | Jul 2025 | – | – | 0.1 mi |
| 5 Somers CrescentW2 2PN · Terraced | £2,125,000 | Jun 2025 | – | – | 0.1 mi |
| 17 Hyde Park GardensW2 2LY · Terraced | £9,000,000 | Apr 2025 | – | – | 0.1 mi |
| 41 Hyde Park SquareW2 2JT · Terraced | £2,400,000 | Jan 2026 | – | – | 0.2 mi |
| 44 Hyde Park SquareW2 2JT · Terraced | £2,500,000 | Dec 2025 | – | – | 0.2 mi |
| 8 Sussex Mews WestW2 2SE · Terraced | £3,900,000 | Oct 2025 | – | – | 0.2 mi |
The area
W2 at a glance
What buyers have paid in W2
Completed sales in the last 12 months, against the 12 months before
Flats
Terraced
Semi-detached
Detached
| Type | Sales | Average price | Average size | Per sq ft | On the year |
|---|---|---|---|---|---|
| All homes | 349 | £1,127,349 | – | – | −32.3% |
| Flats | 286 | £785,832 | – | – | −31.1% |
| Terraced | 28 | £2,214,707 | – | – | −30.9% |
| Semi-detached | 2 | £4,044,000 | – | – | – |
| Detached | 2 | £3,625,000 | – | – | – |
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Contains HM Land Registry data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.
Energy performance data © Crown copyright. Licensed under the Open Government Licence v3.0.
Contains HM Land Registry UK House Price Index data © Crown copyright. Licensed under the Open Government Licence v3.0.
Floor area and energy rating from the energy certificate of November 2015.
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