Our Data Sources
9, Castle Avenue, Northampton has no recent1 records in the the Land Registry and a single entry in the EPC database dated August 2014.
We combine this information with public data 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.
Price Range & Condition
In very good condition, we estimate 9, Castle Avenue, Northampton would be worth £305,682, with a potential rental value of £1,534 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £270,747, with a rental value of £1,358 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
9, Castle Avenue, Northampton occupies a 333 m2 plot as recorded by HM Land Registry.
Of the 23 other houses in this postcode, 18 have recorded plot sizes, and this one ranks as the 10th largest.
Energy Efficiency
9, Castle Avenue, Northampton has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Aug 2014.
The property is not connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
9, Castle Avenue, Northampton last changed hands on 22nd July 2005, selling for £144,995. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
- Sold Jul 2005£144,995
- Sold Jul 1996£49,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 171 sales of comparable properties within 540 metres of 9, Castle Avenue, Northampton across the last 2 years.
Most recently, 46, Castle Avenue, Northampton, NN5 6LF, a freehold house, sold at £320,000 on the 2nd February 2026.
Read more about house prices in NN5.
- Sold Feb 2026£320,000 | 4 Bed House46, Castle Avenue, Northampton, NN5 6LF46, Castle Avenue, Northampton, NN5 6LF
- Sold Sep 2021£275,000 | 4 Bed House12, Hardlands Road, Northampton, NN5 6LN12, Hardlands Road, Northampton, NN5 6LN
- Sold Sep 2021£200,000 | 4 Bed House14, Castle Avenue, Northampton, NN5 6LF14, Castle Avenue, Northampton, NN5 6LF
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Our analysis of the public data ranks 9, Castle Avenue, Northampton as the 7th largest and the 7th most expensive of the 79 addresses on Castle Avenue, Northampton, NN5.
Against the NN5 postcode district average, it is £35k more expensive than the typical property.
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Schools Nearby
- Hopping Hill Primary School400 m away
- Duston Eldean Primary School700 m away
- Chiltern Primary School1.0 km away
- Malcolm Arnold Academy3.7 km away
- Abbeyfield School4.7 km away
- Kingsthorpe College4.7 km away
More reading links
Public Transport Nearby
- Northampton|3.0 km away
- Long Buckby|10.8 km away
- Wellingborough|19.3 km away
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
