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1 bed flat for sale John Islip Street, London, SW1P

Guide price
£420,000
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Reduced on 30/09/2026

Type
Flat
Bedrooms
1
Bathrooms
1
Size
£979 per sq ft
Tenure
Share of freehold
981 years left(from the agent's description)
Service charge £8,128 a year(from the agent's description)No ground rent (peppercorn)(from the agent's description) Council tax Band D £1,050 a year EPC Energy rating band C 75

* From the agent's description. Check it with them before you rely on it.

Key features

  • Bright reception room and separate kitchen
  • Dedicated storage unit
  • Communal roof terrace
  • Concierge service
  • Share of freehold with long underlying lease

About this property

One bedroom apartment set on the fourth floor of a Westminster development

A bright and well-presented one bedroom apartment set within a purpose-built development, benefitting from concierge service, off-street parking and a communal roof terrace. The property offers a bright reception room, a separate fully fitted kitchen, a principal bedroom with built-in wardrobes and a modern bathroom.

Floorplan

Energy performance

Energy rating band C 75
Current
Potential
92+
A
81-91
B
69-80
C
Current rating: 75 C
Potential rating: 76 C
55-68
D
39-54
E
21-38
F
1-20
G

This home is rated band C, scoring 75 out of 100. The average British home is band D. Its certificate says it could reach band C (76) 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

Band D £1,050 a year
Per year
  • Band A
    £700
  • Band B
    £816
  • Band C
    £933
  • Band D
    This home: £1,050
  • Band E
    £1,283
  • Band F
    £1,516
  • Band G
    £1,749
  • Band H
    £2,099

This home is in band D, which costs £1,050 a year in Westminster for 2026/27.

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. Check a home's band on GOV.UK.

Property timeline

  1. Reduced
    September 2026 £420,000

    Was £495,000

  2. Listed
    September 2026 £495,000

    1 bed · 1 bath · this listing

Past sales can't be shown: the agent hasn't given the flat number.

Price guide

100 comparables · within 0.7 miles

Cheaper than 88% of the 1-bed flats for sale nearby right now.

This home, £420,000 Median £625,000 · £400,000 – £1,255,000
Per square foot
£979 14% under
1-bed flats nearby £1,141
Against sold prices
1% under
SW1P sold median £984 / sq ft, 241 sales

Compared with 100 1-bed flats for sale within 0.7 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

John Islip Street, London, SW1P

Mortgage and stamp duty

Property price £420,000
£210k £630k
Deposit10% £42,000
£0 £420k
Interest rate 4.5%
0.5% 15%
Repayment period 25 years
5 years 40 years

A £378,000 mortgage. Most lenders would want a household income of about £84,000 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 nearby. Floor areas from Energy Performance Certificates where matched.

AddressSoldSizePrice
Flat 61, Millbank Court, 24, John Islip Street Flat / maisonetteMay 2026n/a£545,000
Flat 55, Millbank Court, 24, John Islip Street Flat / maisonetteSept 2025431 sq ft £859/sq ft£370,000
Flat 52, Millbank Court, 24, John Islip Street Flat / maisonetteJun 2025n/a£535,000
Flat 22, Millbank Court, 24, John Islip Street Flat / maisonetteMar 2025657 sq ft £944/sq ft£620,000
Flat 33, Millbank Court, 24, John Islip Street Flat / maisonetteMar 2025474 sq ft £813/sq ft£385,000
Flat 51, Millbank Court, 24, John Islip Street Flat / maisonetteOct 2024n/a£625,000
Flat 25, Millbank Court, 24, John Islip Street Flat / maisonetteMar 2024431 sq ft £1,229/sq ft£529,000
Flat 25, Millbank Court, 24, John Islip Street Flat / maisonetteSept 2021431 sq ft £1,115/sq ft£480,000

All sales on John Islip Street → All sold prices in Westminster →

Area insights

The neighbourhood around this property.

Marketed by
Savills, Westminster & Pimlico
57 Buckingham Gate, London
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