Our Data Sources
20, Kelmarsh Avenue, Northampton has a single entry in the Land Registry from March 2022 and a single entry in the EPC database dated February 2022.
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
In very good condition, we estimate 20, Kelmarsh Avenue, Northampton would be worth £360,607, with a potential rental value of £1,555 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £319,395, with a rental value of £1,377 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
20, Kelmarsh Avenue, Northampton occupies a 197 m2 plot as recorded by HM Land Registry.
Of the 19 other houses in this postcode, 16 have recorded plot sizes, and this one ranks as the 6th largest.
Energy Efficiency
20, Kelmarsh Avenue, Northampton has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 03 Feb 2022.
The property is connected to mains gas and has high performance glazing. It is heated using a boiler and radiators (mains gas).
Sold Prices
20, Kelmarsh Avenue, Northampton last changed hands on 4th March 2022, selling for £325,950. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has dropped by 2.1% since March 2022.
- Sold Mar 2022£325,950
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 238 sales of comparable properties within 730 metres of 20, Kelmarsh Avenue, Northampton since 2021.
Most recently, 47, Lamport Lane, Northampton, NN2 7DW, a freehold house, sold at £365,000 on the 20th March 2026.
Read more about house prices in NN2.
- Sold Mar 2026£365,000 | 3 Bed House47, Lamport Lane, Northampton, NN2 7DW47, Lamport Lane, Northampton, NN2 7DW
- Sold Aug 2025£335,000 | 4 Bed House6, Ashton Way, Northampton, NN2 7AR6, Ashton Way, Northampton, NN2 7AR
- Sold Apr 2025£341,953 | 4 Bed House53, Campus Drive, Northampton, NN2 7FX53, Campus Drive, Northampton, NN2 7FX
- Sold Apr 2025£359,950 | 4 Bed House55, Campus Drive, Northampton, NN2 7FX55, Campus Drive, Northampton, NN2 7FX
- Sold Mar 2025£404,653 | 4 Bed House59, Campus Drive, Northampton, NN2 7FX59, Campus Drive, Northampton, NN2 7FX
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 £291,983, ranging from £232,114 to £361,893.
- 18 Kelmarsh Avenue
4 Bed House | 5 m | Est. Value: £343,435
- 22 Kelmarsh Avenue
4 Bed House | 13 m | Est. Value: £343,435
- 24 Kelmarsh Avenue
4 Bed House | 18 m | Est. Value: £338,531
- 29 Academy Drive
2 Bed House | 28 m | Est. Value: £240,428
- 27 Academy Drive
2 Bed House | 28 m | Est. Value: £240,428
Location Comparison
Our analysis of the public data ranks 20, Kelmarsh Avenue, Northampton as the 6th largest and the 5th most expensive of the 19 addresses on Kelmarsh Avenue, Northampton, NN2.
Against the NN2 postcode district average, it is £96k more expensive than the typical property.
More reading links
Schools Nearby
- All Saints CofE VA Primary School300 m away
- Sunnyside Primary Academy600 m away
- Green Oaks Primary Academy900 m away
- Kingsthorpe College200 m away
- Northampton School for Girls1.0 km away
- St Thomas Becket Catholic School1.5 km away
More reading links
Public Transport Nearby
- Northampton|4.2 km away
- Long Buckby|14.0 km away
- Wellingborough|14.5 km away
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.





