1/8
£1,150,000
1 bed · 1 bath · 634 sq ft
17 Fitzhardinge House, 12-14 Portman Square, London
0.03 miles
away
Leasehold
Added on 16/09/2026 Foxtons
1/10
1/10
£6,000,000
Asking price 3 bed flat for sale Fitzhardinge House, Portman Square, Marylebone, London
3
beds 3
baths Penthouse
Leasehold
Added yesterday
About this property
A wraparound roof terrace and far-reaching views across two of London’s finest garden squares distinguish this three-bedroom penthouse on Portman Square. Found on the seventh floor of Fitzhardinge House, the double-aspect apartment spans approximately 1,907 sq ft and has been redesigned by Base Interior, with generous lateral proportions, underground parking and access to the square’s private gardens. At the heart of the apartment is an impressive dining and reception room measuring almost 30 ft in length.
Key features
- AC
- Lateral apartment
- Lift
- Parking
- 24 hour concierge
- Private terrace
- Penthouse
- Access to Communal Gardens
- Garden Square View
Floorplan
Price guide
This home
£3,158 / sq ft
Area average (sold)
£1,495 / sq ft
Price per area, sold homes nearby
£972 / sq ft
£3,158 / sq ft
£2,128 / sq ft
Lowest
This home
Highest
£3,158 per sq ft, above 9 in 10 recent sales in W1H (£972–£2,128, 10th–90th percentile, 119 sales over 24 months).
Lowest and highest are the 10th and 90th percentiles of 119 homes sold in W1H over the last 24 months. This home's figure uses its asking price. All sold £/sq ft in W1H →
Location
Fitzhardinge House, Portman Square, Marylebone, London, W1H 6LH
- Council tax
- Band D (Approx £1,050/year)The agent has not stated the band, so band D is shown as the local reference: Westminster's 2026/27 area average, including the typical parish precept. The actual band and any discounts change the bill.
Mortgage and stamp duty
Property price £6,000,000
£3m £9m
Deposit10% £600,000
£0 £6m
Interest rate 4.5%
0.5% 15%
Repayment period 25 years
5 years 40 years
A £5,400,000 mortgage. Most lenders would want a household income of about £1,200,000 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.
Historic sold prices nearby
HM Land Registry sales in W1H 6LH. Floor areas from Energy Performance Certificates where matched.
| Address | Type | Sold | Size | Size | £/sq ft | Price |
|---|---|---|---|---|---|---|
| Flat 63, Fitzhardinge House, Portman Square Flat / maisonette | Flat / maisonette | Apr 2024 | — | — | — | £5,000,000 |
| Flat 57, Fitzhardinge House, Portman Square Flat / maisonette | Flat / maisonette | Mar 2022 | 527 sq ft £961/sq ft | 527 sq ft | £961 | £507,000 |
| Flat 44, Fitzhardinge House, Portman Square Flat / maisonette | Flat / maisonette | Dec 2015 | 926 sq ft £2,269/sq ft | 926 sq ft | £2,269 | £2,100,000 |
| Flat 31, Fitzhardinge House, Portman Square Flat / maisonette | Flat / maisonette | Mar 2014 | 603 sq ft £1,991/sq ft | 603 sq ft | £1,991 | £1,200,000 |
| Flat 36, Fitzhardinge House, Portman Square Flat / maisonette | Flat / maisonette | Dec 2011 | 850 sq ft £1,688/sq ft | 850 sq ft | £1,688 | £1,435,000 |
| Flat 42, Fitzhardinge House, Portman Square Flat / maisonette | Flat / maisonette | Oct 2011 | 603 sq ft £971/sq ft | 603 sq ft | £971 | £585,000 |
| Flat 61, Fitzhardinge House, Portman Square Flat / maisonette | Flat / maisonette | Aug 2011 | 635 sq ft £1,031/sq ft | 635 sq ft | £1,031 | £655,000 |
| Flat 44, Fitzhardinge House, Portman Square Flat / maisonette | Flat / maisonette | Jun 2010 | 926 sq ft £789/sq ft | 926 sq ft | £789 | £730,000 |
Area insights
The neighbourhood around this property.
Marketed by
United Kingdom Sotheby's International Realty, Marylebone - United Kingdom Sotheby's International Realty
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