Our Data Sources
21, Castle Bytham Road, Grantham has 4 entries in the Land Registry , most recently in September 2025 and a single entry in the EPC database dated July 2015.
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
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 21, Castle Bytham Road, Grantham, we estimate a market value of £452,456 and a rental value of £1,383 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £400,746 and £1,225 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, Castle Bytham Road, Grantham as measuring 504 m2.
That makes it the 7th largest plot in the postcode, where 8 of the 12 other houses have recorded plot data.
Energy Efficiency
21, Castle Bytham Road, Grantham has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 08 Jul 2015.
The property is not connected to mains gas and has high performance glazing. It is heated using Boiler and radiators, oil.
Sold Prices
The most recent sale of 21, Castle Bytham Road, Grantham completed on 12th September 2025 at £210,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 4 times.
Values of comparable properties have dropped by 3.7% over the period since September 2025.
- Sold Sep 2025£210,000
- Sold Jan 2023£410,000
- Sold Jun 2020£375,000
Similar Properties Sold Nearby
Over the past 2 years 49 properties similar to 21, Castle Bytham Road, Grantham have sold within a radius of 6.1 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 7th May 2025, was 12, Corby Road, Grantham, NG33 4LQ, a freehold house which sold for £440,000.
Read more about house prices in NG33.
- Sold May 2025£440,000 | 4 Bed House12, Corby Road, Grantham, NG33 4LQ12, Corby Road, Grantham, NG33 4LQ
- Sold Jun 2021£377,000 | 3 Bed House2A, Overgate Road, Grantham, NG33 4LG2A, Overgate Road, Grantham, NG33 4LG
- Sold Nov 2019£372,500 | 3 Bed House19, Castle Bytham Road, Grantham, NG33 4LW19, Castle Bytham Road, Grantham, NG33 4LW
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Of the 12 addresses on Castle Bytham Road, Swayfield, Grantham, NG33, 21, Castle Bytham Road, Grantham comes out as the 12th largest and the 8th most expensive in our analysis of the public data.
It is also £109k more expensive than the average property across the NG33 district.
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Schools Nearby
- Corby Glen Community Primary School2.4 km away
- Bythams Primary School4.3 km away
- Colsterworth Church of England Primary School6.1 km away
- Charles Read Academy2.3 km away
- Bourne Academy11.1 km away
- Bourne Grammar School11.1 km away
More reading links
Public Transport Nearby
- Grantham|14.7 km away
- Stamford (Lincs)|16.5 km away
- Oakham|19.1 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 Very Low, based on Environment Agency data.












