1/13

£3,250,000

Asking price

3 bed flat for sale Castellain Road, London, W9

3 beds 3 baths Flat/Apartment

Share of freehold

Added on 16/09/2026

About this property

A rare and wonderful opportunity to purchase a unique, bright upper floor triplex apartment (entrance on the raised ground floor) in excellent condition, offering approximately 1,970 square feet (183.06 SQ M) of well proportioned, spacious accommodation. The entrance is on the raised ground floor, with stairs leading up to the first floor, with a grand reception room, dining room boasting elegance and character, with high ceilings, bespoke shelving, two ornate fireplaces and an attractive bay, with full length sash windows offering a wealth of natural light overlooking Castellain Road.

Key features

Large Principal Bedroom with Walk-In Wardrobe and En-Suite Shower Room
Grand Reception / Dining Room
High Ceilings
Two Ornate Fireplaces
Fully-Fitted Kitchen
Large Double Bedroom with Ensuite Shower Room
Third Bedroom
Family Bathroom Suite
Balcony

Floorplan

Energy performance

C 79

Current

Potential

92+

81-91

84 B

69-80

79 C

55-68

39-54

21-38

1-20

This home is rated band C, scoring 79 out of 100. The average British home is band D. Its certificate says it could reach band B (84) 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.

Price guide

This home

£1,650 / sq ft

Area average (sold)

£1,028 / sq ft

Price per area, sold homes nearby

£664 / sq ft

£1,650 / sq ft

£1,383 / sq ft

Lowest

This home

Highest

£1,650 per sq ft, above 9 in 10 recent sales in W9 (£664–£1,383, 10th–90th percentile, 636 sales over 24 months).

Lowest and highest are the 10th and 90th percentiles of 636 homes sold in W9 over the last 24 months. This home's figure uses its asking price. All sold £/sq ft in W9 →

Location

Castellain Road, London, W9, W9 1EY

Open map Street View

Council tax: Band D (Approx £1,050/year)

Mortgage and stamp duty

Property price £3,250,000

£1.6m £4.9m

Deposit10% £325,000

£0 £3.3m

Interest rate 4.5%

0.5% 15%

Repayment period 25 years

5 years 40 years

A £2,925,000 mortgage. Most lenders would want a household income of about £650,000 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 W9 1EY. Floor areas from Energy Performance Certificates where matched.

Address	Type	Sold	Size	Size	£/sq ft	Price
Garden Floor Flat, 19, Castellain Road Flat / maisonette	Flat / maisonette	Jun 2025	958 sq ft £1,096/sq ft	958 sq ft	£1,096	£1,050,000
First Floor Flat, 23, Castellain Road Flat / maisonette	Flat / maisonette	Jan 2025	678 sq ft £1,320/sq ft	678 sq ft	£1,320	£895,000
First Floor Flat, 23, Castellain Road Flat / maisonette	Flat / maisonette	Sept 2023	678 sq ft £1,180/sq ft	678 sq ft	£1,180	£800,000
Second And Third Floor Flat, 23, Castellain Road Flat / maisonette	Flat / maisonette	Jul 2022	678 sq ft £1,681/sq ft	678 sq ft	£1,681	£1,140,000
Flat 3, 11, Castellain Road Flat / maisonette	Flat / maisonette	Nov 2021	—	—	—	£717,000
33, Castellain Road Terraced	Terraced	Jul 2021	4,047 sq ft £1,432/sq ft	4,047 sq ft	£1,432	£5,795,000
Second And Third Floor Flat, 25, Castellain Road Flat / maisonette	Flat / maisonette	Dec 2019	689 sq ft £1,706/sq ft	689 sq ft	£1,706	£1,175,000
Flat 3, 3, Castellain Road Flat / maisonette	Flat / maisonette	Sept 2019	1,066 sq ft £1,150/sq ft	1,066 sq ft	£1,150	£1,225,875