Our Data Sources
Castle Keep, Gainsborough has no records in the the Land Registry and a single entry in the EPC database dated November 2023.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For Castle Keep, Gainsborough, we estimate a market value of £435,984 and a rental value of £1,521 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £386,157 and £1,347 per month respectively.
Plot Size
HM Land Registry records the plot of land for Castle Keep, Gainsborough as measuring 6,162 m2.
That makes it the largest plot in the postcode, where 14 of the 16 other houses have recorded plot data.
Energy Efficiency
Castle Keep, Gainsborough has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 23 Nov 2023.
The property is not connected to mains gas and has mostly double glazing. It is heated using Boiler and radiators, oil.
Similar Properties Sold Nearby
Over the past 2 years 29 properties similar to Castle Keep, Gainsborough have sold within a radius of 4.0 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 12th February 2026, was 10, Rye Walk, Brigg, DN20 9FS, a freehold house which sold for £375,000.
Read more about house prices in DN21.
- Sold Feb 2026£375,000 | 5 Bed House10, Rye Walk, Brigg, DN20 9FS10, Rye Walk, Brigg, DN20 9FS
- Sold Jan 2021£349,950 | 5 Bed House17, Rye Walk, Brigg, DN20 9FS17, Rye Walk, Brigg, DN20 9FS
- Sold Jan 2019£410,000 | 5 Bed HouseStable Cottage, Redbourne Park, Gainsborough, DN21 4JGStable Cottage, Redbourne Park, Gainsborough, DN21 4JG
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Of the 25 addresses on School Lane, Redbourne, Gainsborough, DN21, Castle Keep, Gainsborough comes out as the 12th largest and the 14th most expensive in our analysis of the public data.
It is also £227k more expensive than the average property across the DN21 district.
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Schools Nearby
- Hibaldstow Academy2.5 km away
- Waddingham Primary School4.0 km away
- Kirton Lindsey Primary Academy4.4 km away
- Kirton Academy3.5 km away
- Sir John Nelthorpe School7.9 km away
- The Vale Academy8.3 km away
More reading links
Public Transport Nearby
- Kirton Lindsey|4.1 km away
- Brigg|7.4 km away
- Barnetby|12.5 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Medium, based on Environment Agency data.












