Our Data Sources
18, Mount Stewart Avenue, Harrow has a single entry in the Land Registry from November 2018 and no records in the EPC database.
We combine this sold price information with public data of neighbouring properties to estimate the attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 18, Mount Stewart Avenue, Harrow, we estimate a market value of £781,309 and a rental value of £2,781 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £692,016 and £2,463 per month respectively.
Plot Size
HM Land Registry records the plot of land for 18, Mount Stewart Avenue, Harrow as measuring 410 m2.
That makes it the 12th largest plot in the postcode, where all 18 other houses have recorded plot data.
Sold Prices
The most recent sale of 18, Mount Stewart Avenue, Harrow completed on 29th November 2018 at £715,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have dropped by 12.1% over the period since November 2018.
- Sold Nov 2018£715,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 18, Mount Stewart Avenue, Harrow have sold within a radius of 650 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 10th October 2025, was 64, The Ridgeway, Harrow, HA3 0LL, a freehold house which sold for £945,000.
Read more about house prices in HA3.
- Sold Oct 2025£945,000 | 4 Bed House64, The Ridgeway, Harrow, HA3 0LL64, The Ridgeway, Harrow, HA3 0LL
- Sold Oct 2025£705,000 | 4 Bed House2, Woodhill Crescent, Harrow, HA3 0LY2, Woodhill Crescent, Harrow, HA3 0LY
- Sold Mar 2021£780,000 | 4 Bed House2, Sheridan Gardens, Harrow, HA3 0JT2, Sheridan Gardens, Harrow, HA3 0JT
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 56 addresses on Mount Stewart Avenue, Harrow, HA3, 18, Mount Stewart Avenue, Harrow comes out as the 42nd largest and the 39th most expensive in our analysis of the public data.
It is also £231k more expensive than the average property across the HA3 district.
More reading links
Schools Nearby
- 200mMount Stewart Infant School
- 300mMount Stewart Junior School
- 700mUxendon Manor Primary School
- 600mSt Gregory's Catholic Science College
- 1.0kmClaremont High School
- 1.6kmHarrow High School
More reading links
Public Transport Nearby
- 900mSouth Kenton
- 900mKenton
- 900mNorthwick Park
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast broadband is available in the area.
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.












