Our Data Sources
25, Portmarnock Way, Grantham has 21 entries in the Land Registry, most recently in June 2014 and a single entry in the EPC database dated September 2013.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
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 25, Portmarnock Way, Grantham, we estimate a market value of £294,047 and a rental value of £1,232 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £260,442 and £1,091 per month respectively.
Plot Size
HM Land Registry records the plot of land for 25, Portmarnock Way, Grantham as measuring 310 m2.
That makes it the 7th largest plot in the postcode, where 27 of the 29 other houses have recorded plot data.
Energy Efficiency
25, Portmarnock Way, Grantham has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 10 Sep 2013.
The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 25, Portmarnock Way, Grantham completed on 9th June 2014 at £185,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
Values of comparable properties have risen by 37.3% over the period since June 2014.
- Sold Jun 2014£185,000
- Sold Dec 2005£180,000
Similar Properties Sold Nearby
Since 2016 117 properties similar to 25, Portmarnock Way, Grantham have sold within a radius of 740 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 7th May 2026, was 18, St. Mellion Drive, Grantham, NG31 9FB, a freehold house which sold for £320,000.
Read more about house prices in NG31.
- Sold May 2026£320,000 | 4 Bed House18, St. Mellion Drive, Grantham, NG31 9FB18, St. Mellion Drive, Grantham, NG31 9FB
- Sold Feb 2026£282,000 | 4 Bed House5, Ganton Way, Grantham, NG31 9FD5, Ganton Way, Grantham, NG31 9FD
- Sold Dec 2025£278,000 | 4 Bed House84, Sunningdale, Grantham, NG31 9SB84, Sunningdale, Grantham, NG31 9SB
- Sold Jul 2025£290,000 | 4 Bed House20, St. Mellion Drive, Grantham, NG31 9FB20, St. Mellion Drive, Grantham, NG31 9FB
- Sold Feb 2025£295,000 | 4 Bed House16, Portmarnock Way, Grantham, NG31 9FL16, Portmarnock Way, Grantham, NG31 9FL
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £240,865, ranging from £193,981 to £293,612.
- 23 Portmarnock Way
3 Bed House | 8 m | Est. Value: £216,383
- 27 Portmarnock Way
4 Bed House | 13 m | Est. Value: £259,889
- 21 Portmarnock Way
3 Bed House | 19 m | Est. Value: £222,961
- 19 Portmarnock Way
3 Bed House | 23 m | Est. Value: £222,261
- 17 Portmarnock Way
3 Bed House | 28 m | Est. Value: £193,981
Location Comparison
Of the 29 addresses on Portmarnock Way, Grantham, NG31, 25, Portmarnock Way, Grantham comes out as the 10th largest and the 8th most expensive in our analysis of the public data.
It is also £65k more expensive than the average property across the NG31 district.
More reading links
Schools Nearby
- Belmont Community Primary School500 m away
- Belton Lane Community Primary School900 m away
- The Harrowby Church of England Primary School1.1 km away
- Kesteven and Grantham Girls' School1.9 km away
- The Priory Ruskin Academy2.0 km away
- The King's School, Grantham2.2 km away
More reading links
Public Transport Nearby
- Grantham|2.8 km away
- Ancaster|8.8 km away
- Rauceby|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 available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
