Our Data Sources
Flat 18, Knapp House 20, Grantham has no records in the the Land Registry and a single entry in the EPC database dated September 2025.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low 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 18, Knapp House 20, Grantham is in very good condition we estimate a sale value of £78,530 and a rental value of £484 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £69,556 and a rental value of £429 per month.
Energy Efficiency
Flat 18, Knapp House 20, Grantham has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 05 Sep 2025.
The property is not connected to mains gas and has high performance glazing. It is heated using Room heaters, electric.
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 3 sales of properties similar to Flat 18, Knapp House 20, Grantham within a radius of 530 metres over the last 2 years.
The most recent example is Flat 12, Kesteven Court, New Street, Grantham, NG31 8FP, a leasehold flat which sold for £95,000 on the 13th March 2023.
Read more about house prices in NG31.
- Sold Mar 2023£95,000 | 2 Bed FlatFlat 12, Kesteven Court, New Street, Grantham, NG31 8FPFlat 12, Kesteven Court, New Street, Grantham, NG31 8FP
- Sold Jun 2021£730,000 | 2 Bed Flat55, Castlegate, Grantham, NG31 6SN55, Castlegate, Grantham, NG31 6SN
- Sold Mar 2017£64,950 | 2 Bed Flat45, Swinegate, Grantham, NG31 6RL45, Swinegate, Grantham, NG31 6RL
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Swinegate, Grantham, NG31 has a total of 85 addresses. According to our analysis of all the public data, Flat 18, Knapp House 20, Grantham is the 72nd largest and the 72nd most expensive property on the street.
When compared to the postcode district it is £135k less expensive than the average property in NG31.
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Schools Nearby
- 100mSt Wulfram's National Church of England Primary School
- 700mThe Little Gonerby Church of England Primary Academy, Grantham
- 900mSaint Mary's Catholic Voluntary Academy
- 200mThe King's School, Grantham
- 600mKesteven and Grantham Girls' School
- 1.0kmThe Priory Ruskin Academy
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Public Transport Nearby
- 900mGrantham
- 10.8kmBottesford
- 10.9kmAncaster
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.
