Property profile

Flat 23 Boulogne HouseFrazer Nash Close

TW7 5FQ

Syon & Brentford Lock

Area profile →

Map showing Flat 23 Boulogne House, Frazer Nash Close, Isleworth

Estimated sale price

£430,000

Flats sold in Syon & Brentford Lock

The box shows the middle 50% of flats sale prices, the whiskers show the 5th to 95th percentile, and the marker shows this property's estimated price.

Half of similar homes sold within the box; most sold within the wider line.

An indicative model estimate, not a survey or formal valuation.

This property vs market

Last sold01 Apr 2026
£450,000Change since last sale: −£22,000 (−4.8%)
Annualised change
−12% per yearHounslow annualised change (flats) since 2026: −3.4% per yearThis property's value fell faster than the market
Price per sq ftLocal median £565 per sq ft
£545 per sq ftEstimate vs local median: −£20 per sq ft (−3.5%)
Local sold pricesMedian for flats in Syon & Brentford Lock
£380,000Estimate vs local median: +£48,000 (+13%)
How this estimate is calculated

Area360's automated valuation uses available property details, recorded sales and local market data to estimate a sale price. This automated estimate is a guide, not a survey, mortgage valuation or formal valuation. See the valuation methodology and limitations.

Estimate calculated .

Property facts

Property typeFlat / Enclosed End-Terrace
TenureLeasehold
Floor area73 m² / 786 sq ft
Floor level2
EPC ratingB
EPC inspection06 Nov 2017

Sales history

DatePriceChange
01 Apr 2026£450,000-3%
20 Nov 2017£465,000-

Local market

Property prices in Syon & Brentford Lock

Median price£429,750
Price per sq ft£574
Sales (last 12 months)116
Typical range (middle 50%)£340K – £564K

Based on 116 recent sales, the median property price is £429,750 (about £574 per square foot) in Syon & Brentford Lock area, with individual transactions ranging from £146,000 up to £1,750,000.

Prices by property typelast 12 months

Median sale price, median price per square foot, sales count, and percentile information for each property type in Syon & Brentford Lock over the last year.
TypeSalesMedian£/sq ft
Detached1£850,000£745
Semi-Detached7£615,000£538
Terraced21£595,000£660
Flats87£380,000£565

10-year price trendmedian sale price in Syon & Brentford Lock

Sale price

Ten year median sale price trend for each property type in Syon & Brentford Lock.
YearFlatsSemi-DetachedTerraced
2016£345,000£471,250£490,000
2017£425,000£550,000£560,000
2018£435,000£594,000£570,000
2019£415,000£470,000£490,000
2020£402,000£453,750£540,000
2021£400,000£570,625£600,000
2022£455,000£580,500£557,500
2023£486,450£640,000£710,000
2024£460,000£640,000£612,500
2025£398,000£580,000£617,000
2026£380,000£568,500
Ten year median sale price trend for each property type in Syon & Brentford Lock.

Price per sq ft

Ten year median sale price per square foot trend for each property type in Syon & Brentford Lock.
YearFlatsSemi-DetachedTerraced
2016£655£553£511
2017£584£673£585
2018£598£544£528
2019£567£546£522
2020£550£546£592
2021£552£631£565
2022£631£587£560
2023£732£526£576
2024£625£578£643
2025£591£555£613
2026£520£711
Ten year median sale price per square foot trend for each property type in Syon & Brentford Lock.

Price distribution by property typelast 12 months

Price distribution by property type for Syon & Brentford Lock in the last year.

Recent sales

There were 50+ recent sold properties in the last 18 months near TW7 5FQ.

Recent sold properties in the last 18 months near TW7 5FQ
DateAddressTypeTenurePriceMap
01 Apr 2026Flat 23, Boulogne House, Frazer Nash Close, Isleworth, TW7 5FQFlatsLeasehold£450,000
29 Jan 2026Flat 5, Colmore House, Frazer Nash Close, Isleworth, TW7 5FRFlatsLeasehold£295,000
29 Aug 2025Flat 12, Colmore House, Frazer Nash Close, Isleworth, TW7 5FRFlatsLeasehold£430,000
31 Mar 2025Flat 9, Colmore House, Frazer Nash Close, Isleworth, TW7 5FRFlatsLeasehold£475,000
28 Mar 2025Flat 33, Colmore House, Frazer Nash Close, Isleworth, TW7 5FRFlatsLeasehold£470,000

Other properties at this postcode

AddressTenureFloor areaLast sale
Flat 1 Boulogne House, Frazer Nash Close, IsleworthLeasehold74 m²£410,000 (2017)
Flat 2 Boulogne House, Frazer Nash Close, IsleworthLeasehold74 m²£425,000 (2017)
Flat 3 Boulogne House, Frazer Nash Close, IsleworthLeasehold74 m²£427,500 (2017)
Flat 4 Boulogne House, Frazer Nash Close, IsleworthLeasehold73 m²£430,000 (2017)
Flat 5, Boulogne House, Frazer Nash Close, IsleworthLeasehold49 m²£305,500 (2017)
Flat 6 Boulogne House, Frazer Nash Close, IsleworthLeasehold73 m²£440,000 (2017)
Flat 7 Boulogne House, Frazer Nash Close, IsleworthLeasehold73 m²£440,000 (2017)
Flat 8 Boulogne House, Frazer Nash Close, IsleworthLeasehold72 m²£425,000 (2017)
Flat 9 Boulogne House, Frazer Nash Close, IsleworthLeasehold72 m²£415,000 (2017)
Flat 10 Boulogne House, Frazer Nash Close, IsleworthLeasehold73 m²£399,500 (2017)

Area insights for TW7 5FQ

Full area profile →

Overview

Postcode TW7 5FQ is located in a major urban area, within the Syon & Brentford Lock ward of Hounslow in the London region, and forms part of the Syon Green area. It has average deprivation and low crime levels, with around 48.4 crimes per 1,000 residents per year, about 63% below the London average of 130 per 1,000. The average income per household in Syon Green is £83,140 per year. The nearest station is Isleworth, about 0.2 miles away. There are 8 primary and 6 secondary schools in the area. There are 2 parks nearby, the closest small park is St. John's Gardens.

Crime rate
3/10
Crimes per 1k residents
48
Deprivation level
5/10
Income level
8/10
Social housing
20.6%
Connectivity
6/10
Flood Risk
No risk
Noise Level
High

Deprivation level

5/10

Syon Green has an average level of deprivation, ranked at position 19,457 out of 32,844 areas in the United Kingdom, placing it within the bottom 41% least deprived areas in England.

Crime level

3/10

Syon Green has a low crime rate, with approximately 48.4 reported incidents per 1,000 population each year.

Social housing

20.6%

Approximately 20.6% of homes on this street are social housing provided by a local council or housing association. Across the surrounding area, around 22.9% of dwellings are socially rented.

Income level

8/10

The average income per household in Syon Green is £83,140 per year.

Noise Level

High

High noise level (70.0-74.9 dB) from road, approximately 25 ft away from TW7 5FQ.

Flood risk

No risk

Syon Green near TW7 5FQ has no flood risk (less than 0.1% chance of a flood each year) from rivers and sea.

Transport

6/10

The nearest station is Isleworth located about 0.2 miles away. There are 4 stations nearby.

Nearby public transport stations for TW7 5FQ
DistanceZoneNameLinesDirections
0.2 mi

4

Isleworth

South Western

Walking directions to Isleworth
0.6 mi

4

Syon Lane

South Western

Walking directions to Syon Lane
0.9 mi

4

Osterley

Piccadilly

Walking directions to Osterley

Parks

Nearby parks and green spaces for TW7 5FQ
DistanceNameSizeDirections
0.3 miSt. John's GardensSmallWalking directions to St. John's Gardens
0.4 miSilverhall ParkSmallWalking directions to Silverhall Park

Area Profile

Population
396
Population density
16,163.3 per km²

Crime

Crime per 1,000 population

Anti-social behaviour
24.51(-9%)
Violence and sexual offences
17.33(-44%)
Drugs
7.77(+25%)
Other theft
7.17(-37%)
Vehicle crime
4.78(-49%)
London average

Demographics

Ethnic groups

British
115
29.11%
Other White
55
13.92%
Indian
54
13.67%
Pakistani
27
6.84%
Other Asian
27
6.84%
Total population: 395

Economics

Education (age 16+)

Level 4+ (Degree)
195
62.5%
Level 3 (A level)
38
12.18%
Level 2 (GCSEs 9-4)
25
8.01%
No qualifications
22
7.05%
Level 1 (GCSEs 3-1)
22
7.05%
Total 16+ residents: 312

Housing

Housing tenure

Owns with a mortgage
57
33.53%
Private landlord or letting agency
43
25.29%
Other social rented
31
18.24%
Owns outright
27
15.88%
Shared ownership
8
4.71%
Total households: 170

Schools

In the TW7 5FQ postcode area, located within Syon Green, there are 8 primary and 6 secondary schools in close proximity.

Nearby primary and secondary schools for TW7 5FQ
DistancePhaseNameTypeRating
0.1 miNot applicableThe Woodbridge Park Education ServicePupil referral unit

Good

0.2 miPrimaryThe Smallberry Green Primary SchoolCommunity school

Good

0.3 miPrimaryIsleworth Town Primary SchoolCommunity school

Good

Local amenities

15 nearby supermarkets & convenience stores within mi of TW7 5FQ

Nearby supermarkets & convenience stores for TW7 5FQ
DistanceNameAddressDirections
0 miMr PhoneFrazer Nash Close, Hounslow, TW7 5FPWalking directions to Mr Phone
0.2 miWay 2 SaveOld Pound Close, Hounslow, TW7 5AFWalking directions to Way 2 Save
0.2 miLondon Food & WineLondon Road, Hounslow, TW7 4BXWalking directions to London Food & Wine
0.2 miBest-oneLondon Road, Hounslow, TW7 4BXWalking directions to Best-one
0.2 miEuro Stop483 London Road, Isleworth, TW7 4BXWalking directions to Euro Stop