Our Data Sources
23, Warden Avenue, Harrow has 21 entries in the Land Registry, most recently in May 2007 and a single entry in the EPC database dated March 2025.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
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 23, Warden Avenue, Harrow is in very good condition we estimate a sale value of £611,250 and a rental value of £2,751 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £541,393 and a rental value of £2,437 per month.
Plot Size
According to data from HM Land Registry, 23, Warden Avenue, Harrow sits on a plot of 271 m2.
We have plot size data on 11 out of 12 other houses in the postcode and 23, Warden Avenue, Harrow sits on the 5th largest plot.
Energy Efficiency
23, Warden Avenue, Harrow has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 09 Mar 2025.
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, 23, Warden Avenue, Harrow was last sold on 1st May 2007 for £292,000 and was recorded as a freehold house.
The property has had 2 sales since 1995.
Since May 2007, the market for similar properties has risen by 81.5%.
- Sold May 2007£292,000
- Sold Nov 2000£65,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 183 sales of properties similar to 23, Warden Avenue, Harrow within a radius of 490 metres since 2019.
The most recent example is 21, Fairview Crescent, Harrow, HA2 9UB, a freehold house which sold for £630,000 on the 9th April 2026.
Read more about house prices in HA2.
- Sold Apr 2026£630,000 | 4 Bed House21, Fairview Crescent, Harrow, HA2 9UB21, Fairview Crescent, Harrow, HA2 9UB
- Sold Nov 2025£575,000 | 3 Bed House239, Kings Road, Harrow, HA2 9LF239, Kings Road, Harrow, HA2 9LF
- Sold Sep 2025£497,500 | 4 Bed House38, Ovesdon Avenue, Harrow, HA2 9PD38, Ovesdon Avenue, Harrow, HA2 9PD
- Sold Apr 2025£710,000 | 4 Bed House65, Warden Avenue, Harrow, HA2 9LL65, Warden Avenue, Harrow, HA2 9LL
- Sold Apr 2025£575,000 | 3 Bed House54, Waverley Road, Harrow, HA2 9RD54, Waverley Road, Harrow, HA2 9RD
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 £488,077, ranging from £304,691 to £623,751.
- 21 Warden Avenue
3 Bed House | 6 m | Est. Value: £491,119
- 25 Warden Avenue
2 Bed Flat | 11 m | Est. Value: £343,248
- 25A Warden Avenue
3 Bed Flat | 11 m | Est. Value: £373,080
- 19 Warden Avenue
3 Bed House | 12 m | Est. Value: £519,029
- 17A Warden Avenue
2 Bed Flat | 21 m | Est. Value: £337,508
Location Comparison
Warden Avenue, Harrow, HA2 has a total of 132 addresses. According to our analysis of all the public data, 23, Warden Avenue, Harrow is the 9th largest and the 30th most expensive property on the street.
When compared to the postcode district it is £93k more expensive than the average property in HA2.
More reading links
Schools Nearby
- Newton Farm Nursery, Infant and Junior School400 m away
- Roxbourne Primary School800 m away
- Longfield Primary School900 m away
- Rooks Heath School1.1 km away
- Pinner High School1.3 km away
- Whitmore High School1.4 km away
More reading links
Public Transport Nearby
- Rayners Lane|300 m away
- North Harrow|1.6 km away
- West Harrow|1.6 km away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast 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.












