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4 bed new development for sale Castelnau, Barnes, SW13

Guide price

£4,950,000

Added on 18/10/2026

Type: New development
Bedrooms: 4
Bathrooms: 5
Size: £1,437 per sq ft
Tenure: Freehold

Council tax Band G £1,714 a year

Key features

Offers beautifully designed accommodation across three floors
Finished to an exacting specification throughout
Combing contemporary architecture with expansive living spaces
A superb setting for both family life and entertaining
Impressive gravel drive and parking for several cars.
Stunning open-plan kitchen and dining area
Impressive west-facing garden with a19'8 swimming pool as well as a self-contained garden studio with a kitchenette and shower room

About this property

This exceptional newly built detached family house offers beautifully designed accommodation across three floors, extending to approximately 3,444 sq ft. Finished to an exacting specification throughout, this outstanding home combines contemporary architecture with expansive living spaces, creating a superb setting for both family life and entertaining. The house is set back from the road with an impressive gravel drive and parking for several cars.

Floorplan

Council tax

Band G £1,714 a year

Per year

Band A

£685
Band B

£800
Band C

£914
Band D

£1,028
Band E

£1,257
Band F

£1,485
Band G

This home: £1,714
Band H

£2,056

This home is in band G, which costs £1,714 a year in Wandsworth for 2026/27.

Figures from MHCLG (Open Government Licence v3): the average bill for each band across Wandsworth, 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.

Price guide

This home (approx.)

£1,437 / sq ft

Area average (sold)

£987 / sq ft

Price per area, sold homes nearby

£697 / sq ft

£1,437 / sq ft

£1,289 / sq ft

Lowest

This home

Highest

About £1,437 per sq ft, above 9 in 10 recent sales in SW13 (£697–£1,289, 10th–90th percentile, 423 sales over 24 months).

Lowest and highest are the 10th and 90th percentiles of 423 homes sold in SW13 over the last 24 months. This home's figure uses its asking price and a floor area matched from the EPC register, so it is approximate. All sold £/sq ft in SW13 →

Location

Castelnau, Barnes, SW13

Open map Street View

Mortgage and stamp duty

Property price £4,950,000

£2.5m £7.4m

Deposit10% £495,000

£0 £5m

Interest rate 4.5%

0.5% 15%

Repayment period 25 years

5 years 40 years

A £4,455,000 mortgage. Most lenders would want a household income of about £990,000 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.

Address	Type	Sold	Size	Size	£/sq ft	Price
Flat 1, 75, Castelnau Flat / maisonette	Flat / maisonette	Jun 2026	732 sq ft £605/sq ft	732 sq ft	£605	£442,500
71, Castelnau Detached	Detached	Dec 2024	5,081 sq ft £1,535/sq ft	5,081 sq ft	£1,535	£7,800,000
49, Castelnau Detached	Detached	Aug 2023	6,426 sq ft £1,525/sq ft	6,426 sq ft	£1,525	£9,802,000
45, Castelnau Detached	Detached	Jun 2023	6,953 sq ft £1,258/sq ft	6,953 sq ft	£1,258	£8,750,000
61, Castelnau Detached	Detached	Jul 2022	3,434 sq ft £1,241/sq ft	3,434 sq ft	£1,241	£4,260,000
67, Castelnau Detached	Detached	May 2022	4,585 sq ft £1,592/sq ft	4,585 sq ft	£1,592	£7,300,000
Flat 4, 75, Castelnau Flat / maisonette	Flat / maisonette	Nov 2020	743 sq ft £532/sq ft	743 sq ft	£532	£395,000
81, Castelnau Semi-detached	Semi-detached	Jul 2017	3,089 sq ft £1,014/sq ft	3,089 sq ft	£1,014	£3,134,000