According to data from HM Land Registry, 21, Killowen Avenue, Northolt sits on a plot of 301 m².

We have plot size data on 49 out of 50 other houses in the postcode and 21, Killowen Avenue, Northolt sits on the 36th largest plot.

21, Killowen Avenue, Northolt has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 29 Apr 2010.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

According to HM Land Registry, 21, Killowen Avenue, Northolt was last sold on 24th September 2010 for £265,000 and was recorded as a freehold house.

The property has had 2 sales since 1995.

Since September 2010, the market for similar properties has risen by 66.7%.

• Sold Sep 2010£265,000
• Sold Oct 2000£146,000

According to the Land Registry and our network of Estate Agents, there have been 306 sales of properties similar to 21, Killowen Avenue, Northolt within a radius of 500 metres since 2021.

The most recent example is 39, Merton Avenue, Northolt, UB5 4QF, a freehold house which sold for £536,000 on the 29th April 2026.

Read more about house prices in UB5.

• Sold Apr 2026£536,000 | 3 Bed House39, Merton Avenue, Northolt, UB5 4QF39, Merton Avenue, Northolt, UB5 4QF
• Sold Feb 2026£470,000 | 3 Bed House7, Russell Road, Northolt, UB5 4QR7, Russell Road, Northolt, UB5 4QR
• Sold Jan 2026£540,000 | 3 Bed House25, Clauson Avenue, Northolt, UB5 4PR25, Clauson Avenue, Northolt, UB5 4PR
• Sold Aug 2025£495,000 | 3 Bed House55, Wood End Way, Northolt, UB5 4QQ55, Wood End Way, Northolt, UB5 4QQ
• Sold Mar 2025£530,000 | 3 Bed House18, Killowen Avenue, Northolt, UB5 4QT18, Killowen Avenue, Northolt, UB5 4QT
• Sold Jan 2025£500,000 | 3 Bed House50, Killowen Avenue, Northolt, UB5 4QT50, Killowen Avenue, Northolt, UB5 4QT
• Sold Dec 2024£579,000 | 3 Bed House14, Halsbury Road East, Northolt, UB5 4PU14, Halsbury Road East, Northolt, UB5 4PU
• Sold Dec 2024£510,000 | 3 Bed House147, Wood End Gardens, Northolt, UB5 4QW147, Wood End Gardens, Northolt, UB5 4QW
• Sold Oct 2024£537,000 | 3 Bed House44, Killowen Avenue, Northolt, UB5 4QT44, Killowen Avenue, Northolt, UB5 4QT
• Sold Oct 2024£480,000 | 3 Bed House178, Wood End Gardens, Northolt, UB5 4QW178, Wood End Gardens, Northolt, UB5 4QW
• Sold Sep 2024£470,000 | 3 Bed House198, Wood End Lane, Northolt, UB5 4JR198, Wood End Lane, Northolt, UB5 4JR
• Sold Jun 2024£570,000 | 3 Bed House26, Wood End Way, Northolt, UB5 4QQ26, Wood End Way, Northolt, UB5 4QQ
• Sold May 2024£478,000 | 3 Bed House53, Halsbury Road East, Northolt, UB5 4PX53, Halsbury Road East, Northolt, UB5 4PX
• Sold May 2024£520,000 | 3 Bed House24, Killowen Avenue, Northolt, UB5 4QT24, Killowen Avenue, Northolt, UB5 4QT
• Sold Apr 2024£550,000 | 3 Bed House10, Russell Road, Northolt, UB5 4QR10, Russell Road, Northolt, UB5 4QR
• Sold Mar 2024£515,000 | 3 Bed House7, Clauson Avenue, Northolt, UB5 4PR7, Clauson Avenue, Northolt, UB5 4PR
• Sold Oct 2023£500,000 | 3 Bed House34, Halsbury Road East, Northolt, UB5 4PX34, Halsbury Road East, Northolt, UB5 4PX
• Sold Jun 2022£475,000 | 3 Bed House9, Killowen Avenue, Northolt, UB5 4QT9, Killowen Avenue, Northolt, UB5 4QT
• Sold May 2022£561,000 | 3 Bed House4, Halsbury Road East, Northolt, UB5 4PU4, Halsbury Road East, Northolt, UB5 4PU
• Sold May 2021£545,000 | 3 Bed House23, Killowen Avenue, Northolt, UB5 4QT23, Killowen Avenue, Northolt, UB5 4QT

Killowen Avenue, Northolt, UB5 has a total of 85 addresses. According to our analysis of all the public data, 21, Killowen Avenue, Northolt is the 60th largest and the 56th most expensive property on the street.

When compared to the postcode district it is £118k more expensive than the average property in UB5.

• Greenwood Primary School

  300 m away
• Wood End Primary School

  300 m away
• The Welldon Park Academy

  700 m away

• Rooks Heath School

  1.6 km away
• Islip Manor High School

  1.7 km away
• Whitmore High School

  1.9 km away

• Northolt Park

  |

  600 m away
• South Harrow

  |

  1.0 km away
• Sudbury Hill

  |

  1.1 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.