18 Ambassador Close, Hounslow, TW3 3DW is a leasehold flat built between 1930-1949. The property offers approximately 635 square feet of living space and is situated on the 1st floor of a 2-storey building. In this location, apartments of similar size usually have one bedroom.

The estimated current market value of the property is £255,046 , which equates to approximately £402 per square foot. It was last sold on 4 Jul 1997 for £54,000. Since then, the value has increased by £201,046, representing a 372.3% increase, or approximately 12.9% per year.

The current estimated value of £255,046 is:

  • 11.3% lower than the average property price on Ambassador Close
  • 19.8% lower than the average in the TW3 3DW postcode area
  • and 46.0% lower than the average price for Hounslow as a whole

This property has had 2 EPC inspections with recorded tenure information. It was recorded as rented both times. This suggests the property has often been rented out, which may indicate use as an investment or buy-to-let.

At the most recent EPC inspection on 21 January 2026, the property was recorded as rented.

View sold house prices in TW3 3DW

Building approximate location

About Property

Type
Flat
Built
1930-1949
Interior Size
635 sq ft
Tenure
Leasehold
Floor level
1st floor of 2
Price (estimate)
£255,046
Price Per sq ft (estimate)
£402
Bedroom Count (estimate)
1 bedroom

EPC Summary

18 Ambassador Close, Hounslow, Greater London, TW3 3DW has an Energy Performance Certificate (EPC) rating of C, based on the latest assessment carried out on 21 Jan 2026.

This property uses a gas-fired boiler and radiators, connected to the mains gas supply, as its main heating source. Hot water is provided from main heating system. The windows are fully double glazed.

The previous EPC assessment was conducted on 31 Jul 2021. The rating of C is unchanged, though the energy efficiency score decreased by 1.3%.

Since the previous assessment, several changes were observed:

  • The lighting was changed from low energy lighting in all fixed outlets to excellent lighting efficiency, with no change in efficiency (very good).
Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system
Good
Walls
Solid brick, as built, no insulation (assumed)
Very Poor
Windows
Fully double glazed
Poor
Lighting
Excellent lighting efficiency
Very Good

Compared to TW3 3DW

21 st / 26
Price Rank
20% lower than average
19 th / 21
Size Rank
10% smaller than average
13 th / 21
Price Per Sq FT Rank
10% lower than average

Sale History

Today
£255,046
streetscan.co.uk estimate
+372 %
4 Jul 1997
£54,000
Leasehold

Flood Risk for this Property

Flood risk from rivers and the sea
Very low flood risk
Flood risk from surface water
Low flood risk
Surface water flood hazard
Low

* Results are based on Environment Agency flood risk mapping for the property UPRN where available. They are indicative and should not be treated as a site-specific flood survey.

Flood risk from rivers and the sea

This property has very low flood risk from rivers and the sea.

River and sea flooding includes flooding caused by overflowing rivers, estuaries, tidal waters and coastal surges.

Flood risk from surface water

This property has low surface water flood risk.

Surface water flooding can happen when heavy rainfall overwhelms drains, roads, gardens or other hard surfaces.

Flood depth indicators

Rivers and Sea
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk
Surface Water
  • 0.2m depth No mapped risk
  • 0.3m depth No mapped risk
  • 0.6m depth No mapped risk
  • 0.9m depth No mapped risk
  • 1.2m depth No mapped risk

Area Insights

Similar Properties Sold Nearby

rooms: 3
size: 667 sq ft
sale price: £275,000
sale date: 8 Nov 2024
rooms: 3
size: 710 sq ft
sale price: £250,000
sale date: 23 Jan 2015
rooms: 4
size: 624 sq ft
sale price: £185,000
sale date: 26 Sep 2013
rooms: 3
size: 647 sq ft
sale price: £175,000
sale date: 24 May 2013
rooms: 3
size: 689 sq ft
sale price: £126,500
sale date: 8 Jun 2012

Data Sources

The property at 18 Ambassador Close, Hounslow, TW3 3DW appears once in HM Land Registry records, with the transaction recorded on 4 Jul 1997. It also has three Energy Performance Certificate (EPC) records, the earliest dating back to 21 Jan 2026. We use this information to estimate the property's characteristics, flood risk profile and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0 .

StreetScan.co.uk is not affiliated with, endorsed by, or associated with HM Land Registry, DESNZ, MHCLG, Defra or the Environment Agency.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure that the information provided on this website is current and accurate. However, no warranties or representations are made regarding its completeness, accuracy, suitability or reliability. Property values, flood risk assessments and other derived information are estimates based on publicly available datasets and should not be relied upon as professional, legal, surveying, environmental, financial or insurance advice. StreetScan.co.uk expressly disclaims all liability for any loss, damage, cost or expense arising directly or indirectly from the use of, or reliance upon, information provided on this website.