Hillingdon borough's house prices are the fastest growing in London, as the average house value has almost reached a whopping £400,000.
Prices in the area were 17.1% higher at the end of February than a year earlier, having risen by 1.4% in a month.
Overall, the rise was the third highest in the whole of England and Wales, with the average price in the area now at £391,728.
In nearby Hounslow, prices were 13.6% higher than the same point in 2015, although prices fell by 0.5% in February, with an average price of £409,062.
Harrow saw an annual increase of 11.7%, with an average price of £425,111, and Brent saw prices rise 11.2% to an average of £478,285.
Hammersmith and Fulham recorded one of the biggest monthly rises, up 2.2% in February.
Hillingdon's growth rate is almost three times the average national rise in house prices, which was 6.1% in the year to February, which takes the average property value in England and Wales to £190,275.
London experienced the greatest increase in its average property value over the last 12 months with a movement of 13.5%.
Less repossessions but bad news for renters
On a national scale, the number of properties sold in England and Wales for more than £1 million increased by 2% to 1,077 from 1,052 a year earlier.
Repossessions in England and Wales fell by 50% to 356 compared with 706 in December 2014.
London comes out on top again as it is the region with the greatest fall in the number of repossession sales, dropping by 67% from December 2014.
But it is bad news for private renters as rental prices increased in all English regions over the year to February 2016, with rental prices increasing the most in London at 3.8%.
The fastest rising house prices in west London:
| Borough | Monthly change (%) | Annual change (%) | Average price (£) |
| Hillingdon | 1.4 | 17.1 | 391,728 |
| Hounslow | -0.5 | 13.6 | 409,062 |
| Harrow | 1.0 | 11.7 | 425,111 |
| Brent | 0.4 | 11.2 | 478,285 |
| Hammersmith and Fulham | 2.2 | 7.3 | 846,355 |
| Westminster | 0.3 | 6.7 | 1,057,034 |
| Ealing | 0.2 | 6.7 | 494,437 |
| Kensington and Chelsea | -0.1 | 5.6 | 1,396,753 |