Our Data Sources
Flat G4, Sigma House, Northampton has 2 entries in the Land Registry , most recently in June 2022 and a single entry in the EPC database dated October 2021.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
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 Flat G4, Sigma House, Northampton is in very good condition we estimate a sale value of £121,865 and a rental value of £851 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £107,938 and a rental value of £754 per month.
Energy Efficiency
Flat G4, Sigma House, Northampton has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 26 Oct 2021.
The property is not connected to mains gas and has fully double glazed windows. It is heated using Room heaters, electric.
Sold Prices
According to HM Land Registry, Flat G4, Sigma House, Northampton was last sold on 24th June 2022 for £130,000 and was recorded as a leasehold flat.
The property has had 2 sales since 1995.
Since June 2022, the market for similar properties has risen by 10.0%.
- Sold Jun 2022£130,000
- Sold Jun 2007£114,700
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 114 sales of properties similar to Flat G4, Sigma House, Northampton within a radius of 370 metres over the last 2 years.
The most recent example is Flat 511, Alpha House, Broad Street, Northampton, NN1 2HQ, a leasehold flat which sold for £108,600 on the 19th November 2025.
Read more about house prices in NN1.
- Sold Nov 2025£108,600 | 2 Bed FlatFlat 511, Alpha House, Broad Street, Northampton, NN1 2HQFlat 511, Alpha House, Broad Street, Northampton, NN1 2HQ
- Sold Oct 2025£96,500 | 2 Bed FlatFlat 307, Alpha House, Broad Street, Northampton, NN1 2HQFlat 307, Alpha House, Broad Street, Northampton, NN1 2HQ
- Sold Jun 2025£100,000 | 2 Bed FlatFlat 512, Alpha House, Broad Street, Northampton, NN1 2HQFlat 512, Alpha House, Broad Street, Northampton, NN1 2HQ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Narrow Lane, Northampton, NN1 has a total of 18 addresses. According to our analysis of all the public data, Flat G4, Sigma House, Northampton is the 17th largest and the 17th most expensive property on the street.
When compared to the postcode district it is £80k less expensive than the average property in NN1.
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Schools Nearby
- Castle Academy200 m away
- Spring Lane Primary School300 m away
- St James Church of England Primary School1.1 km away
- Malcolm Arnold Academy1.5 km away
- Northampton School for Boys2.2 km away
- Abbeyfield School2.9 km away
More reading links
Public Transport Nearby
- Northampton|700 m away
- Long Buckby|14.0 km away
- Wellingborough|16.7 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 is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
