1/14
£5,500,000
Terraced · 5 beds · 4 baths · 3,211 sq ft
Great College Street, Westminster, SW1P
0.03 miles away
Freehold
1/20
1/20
7 bed house for sale Cowley Street, Westminster, SW1P
Asking price
£16,950,000
Reduced on 16/10/2026
Reduced on 16/10/2026
- Type
- House
- Bedrooms
- 7
- Bathrooms
- 7
- Size
- £1,530 per sq ft
- Tenure
- Freehold
EPC Energy rating band E 50 potential D
Key features
- AC
- Georgian Architecture
- Grand Staircase
- High Ceilings
- Lift
- Massive Rooms
- Original Period Features
- Private Garden
- Private Gym
- Private Pool
- Sauna & Steam Room
About this property
It is hard to imagine a home as regal and unique as the Mansion House. Originally designed by Horace Field, its untold heritage and prestige are evident throughout. Meticulously renovated, this historic property will make a truly exceptional family home. The house is over 15m wide and has an array of illustrious period features such as the sweeping central staircase, the spacious oak-panelled drawing room, and the ornate gilt cupola.
Floorplan
Energy performance
Energy rating band E 50
Current
Potential
92+
A
81-91
B
69-80
C
55-68
D
Potential rating: 61 D
39-54
E
Current rating: 50 E
21-38
F
1-20
G
This home is rated band E, scoring 50 out of 100. The average British home is band D. Its certificate says it could reach band D (61) if the improvements it recommends were carried out.
Read from the certificate published with this listing, so it may not be the latest one. Check the government EPC register for the full certificate and its recommendations.
Council tax
Ask agent
Per year
- Band A£700
- Band B£816
- Band C£933
- Band D£1,050
- Band E£1,283
- Band F£1,516
- Band G£1,749
- Band H£2,099
The agent hasn't said which band this home is in; you can look it up on GOV.UK. In Westminster, 2026/27 bills run from £700 a year in band A to £2,099 in band H.
Figures from MHCLG (Open Government Licence v3): the average bill for each band across Westminster, including the typical parish precept, so a parish's own bill can differ a little. Discounts lower the bill, such as 25% off for an adult living alone.
Price guide
100 comparables · within 1.8 milesPriced above 81% of the 5+ bed houses for sale nearby right now.
This home, £16,950,000 Median £5,475,000 · £1,795,000 – £25,000,000
Against sold prices
55% over
SW1P sold median £984 / sq ft, 241 sales
Compared with 100 5+ bed houses for sale within 1.8 miles, on the market now or already under offer. The range is the middle 80% of their asking prices. Sold prices are HM Land Registry sales in SW1P over the last 24 months, per square foot of EPC floor area. All sold £/sq ft in SW1P →
Location
Cowley Street, Westminster, SW1P
Mortgage and stamp duty
Property price £16,950,000
£8.4m £25.5m
Deposit10% £1,695,000
£0 £17m
Interest rate 4.5%
0.5% 15%
Repayment period 25 years
5 years 40 years
A £15,255,000 mortgage. Most lenders would want a household income of about £3,390,000 to support it.
A guide only, for a capital repayment mortgage. The rate you are offered and what you can borrow depend on your circumstances and a full application with a lender or broker. Your home may be repossessed if you do not keep up repayments on your mortgage.
Properties sold nearby
HM Land Registry sales in SW1P. Floor areas from Energy Performance Certificates where matched.
| Address | Type | Sold | Size | Size | £/sq ft | Price |
|---|---|---|---|---|---|---|
| 25, Vincent Square SW1P 2NJ Terraced | Terraced | Aug 2026 | 527 sq ft £4,645/sq ft | 527 sq ft | £4,645 | £2,450,000 |
| Flat 8, Astral House, Regency Place SW1P 2EA Flat / maisonette | Flat / maisonette | Aug 2026 | 334 sq ft £1,083/sq ft | 334 sq ft | £1,083 | £361,500 |
| Flat 83, Tothill House, Page Street SW1P 4DJ Flat / maisonette | Flat / maisonette | Jul 2026 | 732 sq ft £738/sq ft | 732 sq ft | £738 | £540,000 |
| Flat 8.03, St. Johns Building, 79, Marsham Street SW1P 4SB Flat / maisonette | Flat / maisonette | Jul 2026 | 969 sq ft £955/sq ft | 969 sq ft | £955 | £925,000 |
| Flat 43, Turner House, Erasmus Street SW1P 4DZ Flat / maisonette | Flat / maisonette | Jul 2026 | 420 sq ft £989/sq ft | 420 sq ft | £989 | £415,000 |
| Flat 12a, St Georges Mansions, Causton Street SW1P 4RZ Flat / maisonette | Flat / maisonette | Jul 2026 | n/a | n/a | n/a | £770,000 |
| Flat 2, Evelyn Mansions, Carlisle Place SW1P 1NH Flat / maisonette | Flat / maisonette | Jul 2026 | 1,819 sq ft £605/sq ft | 1,819 sq ft | £605 | £1,100,000 |
| Flat 36, 1, Ambrosden Avenue SW1P 1QQ Flat / maisonette | Flat / maisonette | Jul 2026 | 323 sq ft £914/sq ft | 323 sq ft | £914 | £295,000 |
Area insights
The neighbourhood around this property.
Marketed by
United Kingdom Sotheby's International Realty, Mayfair - United Kingdom Sotheby's International Realty
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