Flat 20, Knapp House 20, Grantham has an Energy Performance Rating (EPC) of B. 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.

According to the Land Registry and our network of Estate Agents, there have been 3 sales of properties similar to Flat 20, Knapp House 20, Grantham within a radius of 530 metres over the last 2 years.

The most recent example is 32A, Alford Street, Grantham, NG31 8BX, a leasehold flat which sold for £65,000 on the 19th June 2024.

Read more about house prices in NG31.

• Sold Jun 2024£65,000 | 2 Bed Flat32A, Alford Street, Grantham, NG31 8BX32A, Alford Street, Grantham, NG31 8BX
• Sold Oct 2022£148,000 | 1 Bed Flat8A, Albion Road, Grantham, NG31 8BJ8A, Albion Road, Grantham, NG31 8BJ
• Sold May 2019£236,000 | 1 Bed Flat64, Westgate, Grantham, NG31 6LA64, Westgate, Grantham, NG31 6LA

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

Swinegate, Grantham, NG31 has a total of 85 addresses. According to our analysis of all the public data, Flat 20, Knapp House 20, Grantham is the 80th largest and the 80th most expensive property on the street.

When compared to the postcode district it is £137k less expensive than the average property in NG31.

• 100

  m

  St Wulfram's National Church of England Primary School
• 700

  m

  The Little Gonerby Church of England Primary Academy, Grantham
• 900

  m

  Saint Mary's Catholic Voluntary Academy

• 200

  m

  The King's School, Grantham
• 600

  m

  Kesteven and Grantham Girls' School
• 1.0

  km

  The Priory Ruskin Academy

• 900

  m

  Grantham
• 10.8

  km

  Bottesford
• 10.9

  km

  Ancaster

According to recent data from Ofcom, superfast broadband is available in this area.

According to data from the Environment Agency, the flood risk in this area is considered to be very low.