Our Data Sources
21, Grassmere Avenue, Northampton has no records in the Land Registry and a single entry in the EPC database dated June 2026.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high 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 21, Grassmere Avenue, Northampton, we estimate a market value of £321,521 and a rental value of £1,543 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £284,776 and £1,366 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Grassmere Avenue, Northampton as measuring 445 m2.
That makes it the 27th largest plot in the postcode, where 45 of the 47 other houses have recorded plot data.
Energy Efficiency
21, Grassmere Avenue, Northampton has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 10 Jun 2026.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Since 2015 230 properties similar to 21, Grassmere Avenue, Northampton have sold within a radius of 680 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 30th March 2026, was 62, Oaklands Drive, Northampton, NN3 3JL, a freehold house which sold for £280,000.
Read more about house prices in NN3.
- Sold Mar 2026£280,000 | 4 Bed House62, Oaklands Drive, Northampton, NN3 3JL62, Oaklands Drive, Northampton, NN3 3JL
- Sold Dec 2025£307,500 | 3 Bed House10, Oaklands Drive, Northampton, NN3 3JL10, Oaklands Drive, Northampton, NN3 3JL
- Sold Dec 2025£338,000 | 3 Bed House11, Beechwood Drive, Northampton, NN3 3DW11, Beechwood Drive, Northampton, NN3 3DW
- Sold Nov 2025£277,500 | 3 Bed House1, Coaching Walk, Northampton, NN3 3EU1, Coaching Walk, Northampton, NN3 3EU
- Sold Nov 2025£327,500 | 4 Bed House18, Firtree Walk, Northampton, NN3 3DT18, Firtree Walk, Northampton, NN3 3DT
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 £284,041, ranging from £240,233 to £335,990.
- 19 Grassmere Avenue
4 Bed House | 8 m | Est. Value: £321,981
- 25 Grassmere Avenue
3 Bed House | 18 m | Est. Value: £300,073
- 15 Grassmere Avenue
4 Bed House | 25 m | Est. Value: £335,990
- 20 Grassmere Avenue
3 Bed House | 29 m | Est. Value: £319,518
- 18 Grassmere Avenue
2 Bed House | 30 m | Est. Value: £255,637
Location Comparison
Of the 47 addresses on Grassmere Avenue, Northampton, NN3, 21, Grassmere Avenue, Northampton comes out as the 15th largest and the 17th most expensive in our analysis of the public data.
It is also £35k more expensive than the average property across the NN3 district.
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Schools Nearby
- Lumbertubs Primary School800 m away
- Weston Favell CofE Primary School900 m away
- Headlands Primary School900 m away
- Northampton Academy400 m away
- Weston Favell Academy600 m away
- St Thomas Becket Catholic School2.2 km away
More reading links
Public Transport Nearby
- Northampton|5.0 km away
- Wellingborough|12.3 km away
- Kettering|17.0 km away
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
