Mahlon Avenue - HA4 6SY
Key Postcode Insights
HA4 6SY is a residential postcode situated on Mahlon Avenue, Ruislip, HA4 with 25 addresses.
It ranks as the 709th largest and 580th most expensive of the 1,059 postcodes in the HA4 area. The most common property type is a early-century house built between 1912 and 1935.
The postcode contains a total of 25 properties: 25 houses.
- Ave. Sale Price
- £604,539
- 10 Year change
- up 13.8%
- Ave. Rental Price
- £2,493pcm
- 10 Year change
- up 47.7%
- Ave. £ per ft²
- £587/ft²
- Ave. Gross Yield
- 4.9%/year/yr
Key Postcode Insights
HA4 6SY is a residential postcode situated on Mahlon Avenue, Ruislip, HA4 with 25 addresses.
It ranks as the 709th largest and 580th most expensive of the 1,059 postcodes in the HA4 area. The most common property type is a early-century house built between 1912 and 1935.
The postcode contains a total of 25 properties: 25 houses.
- Ave. Sale Price
- £604,539
- 10 Year change
- up 13.8%
- Ave. Rental Price
- £2,493pcm
- 10 Year change
- up 47.7%
- Ave. £ per ft²
- £587/ft²
- Ave. Gross Yield
- 4.9%/year/yr
Explore Propertiesin HA4 6SY
- 1 Mahlon Avenue
3 Bed Period House
- 3 Mahlon Avenue
Unknown
- 5 Mahlon Avenue
Unknown
- 7 Mahlon Avenue
4 Bed Early-century House
- 9 Mahlon Avenue
2 Bed Early-century House
Sales Market Trends
The last sale in HA4 6SY sold for £700,000 on 20th October 2025. Since then prices are down an average of 1.1%.
The current average value in the postcode is £604,539.
The HA4 6SY Sales Market has increased by 13.8% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | -0.8% | £604,539 |
| June 2025 | 1.6% | £609,537 |
| June 2024 | 0.3% | £599,804 |
| June 2023 | -1.7% | £597,865 |
| June 2022 | 7.8% | £607,904 |
| June 2021 | 5.5% | £563,746 |
| June 2020 | 2.1% | £534,150 |
| June 2019 | -1.4% | £522,932 |
| June 2018 | -1% | £530,290 |
| June 2017 | 0.8% | £535,597 |
| June 2016 | 14.7% | £531,366 |
| June 2015 | 11.5% | £463,396 |
| June 2014 | 17.5% | £415,616 |
| June 2013 | 3.5% | £353,824 |
| June 2012 | 2.2% | £341,705 |
| June 2011 | 3.2% | £334,418 |
| June 2010 | 15.2% | £323,925 |
| June 2009 | -9.6% | £281,206 |
| June 2008 | 0.9% | £311,100 |
| June 2007 | 0% | £308,248 |
Rental Market Trends
The current average rental value in the postcode is £2,493.
The HA4 6SY Rental Market has increased by 47.7% over the last 10 years.
| Period | Year on Year | Average Price |
|---|---|---|
| June 2026 | 2.6% | £2,493pcm |
| June 2025 | 5.6% | £2,431pcm |
| June 2024 | 7.5% | £2,303pcm |
| June 2023 | 11.3% | £2,143pcm |
| June 2022 | 7.7% | £1,925pcm |
| June 2021 | 4% | £1,787pcm |
| June 2020 | 1.2% | £1,718pcm |
| June 2019 | 0.9% | £1,698pcm |
| June 2018 | -1% | £1,683pcm |
| June 2017 | 0.7% | £1,700pcm |
| June 2016 | 3.4% | £1,688pcm |
| June 2015 | 6.3% | £1,632pcm |
| June 2014 | 5.6% | £1,535pcm |
| June 2013 | 2.8% | £1,453pcm |
| June 2012 | 5.6% | £1,414pcm |
| June 2011 | 5.7% | £1,339pcm |
| June 2010 | 9.4% | £1,267pcm |
| June 2009 | -2.7% | £1,158pcm |
| June 2008 | 5.6% | £1,190pcm |
| June 2007 | 0% | £1,126pcm |
Sales History
The last sale was on 20th October 2025 for £700,000 and since then the market in the area has decreased by 1.1%. The postcode has had a total of 25 sales since 1995.
HA4 6SY has seen 1 sale in the last three years and 1 sale in the last twelve months.
- Sold Oct 2025£700,000 | 4 Bed House7, Mahlon Avenue, Ruislip, HA4 6SY7, Mahlon Avenue, Ruislip, HA4 6SY
- Sold Jun 2021£585,000 | 4 Bed House11, Mahlon Avenue, Ruislip, HA4 6SY11, Mahlon Avenue, Ruislip, HA4 6SY
- Sold Nov 2020£570,000 | 3 Bed House27, Mahlon Avenue, Ruislip, HA4 6SY27, Mahlon Avenue, Ruislip, HA4 6SY
- Sold Nov 2020£605,000 | 3 Bed House39, Mahlon Avenue, Ruislip, HA4 6SY39, Mahlon Avenue, Ruislip, HA4 6SY
- Sold Feb 2020£675,000 | 2 Bed House41, Mahlon Avenue, Ruislip, HA4 6SY41, Mahlon Avenue, Ruislip, HA4 6SY
Nearby Postcodes
HA4 6SY is the 709th largest and the 580th most expensive postcode out of the 1,059 postcodes in the HA4 area.
- HA4 6TF, Mahlon Avenue, Ruislip, HA4HA4 6TF24 Addresses|36 m away
- HA4 6SX, Hardy Avenue, Ruislip, HA4HA4 6SX27 Addresses|42 m away
- HA4 6QR, West End Road, Ruislip, HA4HA4 6QR32 Addresses|65 m away
- HA4 6SU, Hardy Avenue, Ruislip, HA4HA4 6SU25 Addresses|73 m away
- HA4 6ST, Northolt Avenue, Ruislip, HA4HA4 6ST28 Addresses|116 m away
Property Types
- 2 period houses built between 1800 and 1911
- 6 mid-century houses built between 1936 and 1979
- 2 houses of an unknown age
- 7 early-century houses built between 1912 and 1935
- 8 other addresses of unknown type
- period house (2)
- mid-century house (6)
- house (2)
- early-century house (7)
- Unknown (8)
Energy Efficiency
- Energy Performance Certificate (EPC) surveys conducted for 15 properties.
- The most common rating is D.
- A (0)
- E (5)
- B (0)
- F (0)
- C (3)
- G (0)
- D (7)
- No EPC (10)
Top 3 Most Expensive Sales
- Sold Dec 2025£870,000 | 5 Bed House8, Mahlon Avenue, Ruislip, HA4 6TF8, Mahlon Avenue, Ruislip, HA4 6TF
- Sold Jan 2022£700,000 | 4 Bed House65, Mahlon Avenue, Ruislip, HA4 6SZ65, Mahlon Avenue, Ruislip, HA4 6SZ
- Sold Oct 2025£700,000 | 4 Bed House7, Mahlon Avenue, Ruislip, HA4 6SY7, Mahlon Avenue, Ruislip, HA4 6SY
Schools Nearby
- Bourne Primary School400 m away
- Deanesfield Primary School1.1 km away
- St Swithun Wells Catholic Primary School1.4 km away
- Queensmead School1.0 km away
- Ruislip High School1.4 km away
- Islip Manor High School1.8 km away
More reading links
Public Transport Nearby
The closest station to HA4 6SY is South Ruislip station, which is 400 metres away.
- South Ruislip|400 m away
- Ruislip Gardens|1.1 km away
- Ruislip Manor|2.4 km away
- Northolt|2.4 km away
