Our Data Sources
40, Killowen Avenue, Northolt has a single entry in the Land Registry from April 2021 and a single entry in the EPC database dated November 2020.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 40, Killowen Avenue, Northolt is in very good condition we estimate a sale value of £553,691 and a rental value of £3,147 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £490,412 and a rental value of £2,787 per month.
Plot Size
According to data from HM Land Registry, 40, Killowen Avenue, Northolt sits on a plot of 326 m2.
We have plot size data on 49 out of 50 other houses in the postcode and 40, Killowen Avenue, Northolt sits on the 17th largest plot.
Energy Efficiency
40, Killowen Avenue, Northolt has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 03 Nov 2020.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
According to HM Land Registry, 40, Killowen Avenue, Northolt was last sold on 1st April 2021 for £510,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since April 2021, the market for similar properties has dropped by 1.2%.
- Sold Apr 2021£510,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 295 sales of properties similar to 40, Killowen Avenue, Northolt within a radius of 490 metres since 2017.
The most recent example is 20, Keble Close, Northolt, UB5 4QE, a freehold house which sold for £525,000 on the 27th February 2026.
Read more about house prices in UB5.
- Sold Feb 2026£525,000 | 3 Bed House20, Keble Close, Northolt, UB5 4QE20, Keble Close, Northolt, UB5 4QE
- Sold Jan 2026£540,000 | 3 Bed House25, Clauson Avenue, Northolt, UB5 4PR25, Clauson Avenue, Northolt, UB5 4PR
- Sold Mar 2025£530,000 | 3 Bed House18, Killowen Avenue, Northolt, UB5 4QT18, Killowen Avenue, Northolt, UB5 4QT
- Sold Feb 2025£540,000 | 3 Bed House168, Wood End Lane, Northolt, UB5 4JR168, Wood End Lane, Northolt, UB5 4JR
- Sold Jan 2025£500,000 | 3 Bed House50, Killowen Avenue, Northolt, UB5 4QT50, Killowen Avenue, Northolt, UB5 4QT
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £505,802, ranging from £416,181 to £591,265.
- 38 Killowen Avenue
3 Bed House | 5 m | Est. Value: £519,701
- 42 Killowen Avenue
3 Bed House | 8 m | Est. Value: £521,960
- 36 Killowen Avenue
3 Bed House | 13 m | Est. Value: £508,815
- 44 Killowen Avenue
3 Bed House | 16 m | Est. Value: £518,105
- 32 Killowen Avenue
2 Bed House | 26 m | Est. Value: £416,181
Location Comparison
Killowen Avenue, Northolt, UB5 has a total of 85 addresses. According to our analysis of all the public data, 40, Killowen Avenue, Northolt is the 35th largest and the 27th most expensive property on the street.
When compared to the postcode district it is £144k more expensive than the average property in UB5.
More reading links
Schools Nearby
- Greenwood Primary School300 m away
- Wood End Primary School300 m away
- The Welldon Park Academy700 m away
- Rooks Heath School1.6 km away
- Islip Manor High School1.7 km away
- Whitmore High School1.9 km away
More reading links
Public Transport Nearby
- Northolt Park|600 m away
- South Harrow|1.0 km away
- Sudbury Hill|1.1 km away
Available Internet Speeds
According to recent data from Ofcom, Ultrafast Broadband is available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












