1, APARTMENT 7, WILLIAM STREET

SW1X 9HL · Knightsbridge & Belgravia

Last Sold Price
£2,550,000
2025-09-30 · Flat · Leasehold
↓ 83%
since first sale

📋 Sale History (3)

2025-09-30
Flat Leasehold
£2,550,000
2024-03-12
Flat Leasehold
£2,650,000
2023-09-29
Flat Leasehold
£15,200,000

⚡ EPC Energy Rating

C
8, 1 William Street
Score: 71/100 · Certified: 2022-04-27
A
A
B
B
C
▶ C
D
D
E
E
F
F
G
G
Floor Area
90.0 m²
Property Type
Flat
Build Period
2021
Walls
Average thermal transmittance 0.29 W/m-¦K
Roof
(other premises above)
Heating
Community scheme
Price / m²
£28,333
Price / ft²
£2,632

🏛️ Stamp Duty Estimate

Based on last sold price of £2,550,000 (2025/26 rates)

Standard
£217,250
8.5% eff.
First-Time
£217,250
8.5% eff.
Additional
£344,750
13.5% eff.
Full calculator →

🎓 Nearest Schools (5)

More House School
Not applicable 1890ft
Not rated
Hill House School
Not applicable 1921ft
Not rated
Knightsbridge School
Not applicable 2313ft
Not rated
Sussex House School
Not applicable 2926ft
Not rated
Holy Trinity CofE Primary School
Primary 3372ft
Not rated

🔒 Crime in Area

1767 incidents last month (within ~1 mile)

Theft From The Person397 (22%)
Shoplifting283 (16%)
Other Theft278 (16%)
Violent Crime228 (13%)
Anti Social Behaviour217 (12%)
Vehicle Crime101 (6%)
Public Order82 (5%)
Drugs66 (4%)
Robbery63 (4%)
Criminal Damage Arson52 (3%)

🏘️ Nearby Sales in SW1X 9HL

1, APARTMENT 9, WILLIAM STREET
2025-09-30 · Flat
£2,550,000
1, APARTMENT 4, WILLIAM STREET
2023-09-29 · Flat
£15,200,000

📍 Explore SW1X

All SW1X prices →Stamp duty →Search another →

📍 Location

Ward: Knightsbridge & Belgravia

🏦 Mortgage Estimate

Based on last sold price of £2,550,000

Deposit (20%)
£510,000
Loan Amount
£2,040,000
Monthly Payment
£11,339
Adjust your estimate
20%
4.5%
25
Monthly payment: £11,339
Source: HM Land Registry, EPC Register, Ofsted, data.police.uk, Census 2021 · Crown copyright · OGL v3.0