Our Data Sources
20, Portmarnock Way, Grantham has 41 entries in the Land Registry, most recently in March 2018 and a single entry in the EPC database dated August 2022.
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
In very good condition, we estimate 20, Portmarnock Way, Grantham would be worth £294,047, with a potential rental value of £1,232 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £260,442, with a rental value of £1,091 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
20, Portmarnock Way, Grantham occupies a 327 m2 plot as recorded by HM Land Registry.
Of the 29 other houses in this postcode, 27 have recorded plot sizes, and this one ranks as the 5th largest.
Energy Efficiency
20, Portmarnock Way, Grantham has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 05 Aug 2022.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
20, Portmarnock Way, Grantham last changed hands on 29th March 2018, selling for £217,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold 4 times since 1995.
The market for similar properties has risen by 15.0% since March 2018.
- Sold Mar 2018£217,000
- Sold May 2015£178,000
- Sold Sep 2007£198,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 117 sales of comparable properties within 680 metres of 20, Portmarnock Way, Grantham since 2016.
Most recently, 18, St. Mellion Drive, Grantham, NG31 9FB, a freehold house, sold at £320,000 on the 7th May 2026.
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 Mar 2025£340,000 | 4 Bed House87, Sunningdale, Grantham, NG31 9SB87, Sunningdale, Grantham, NG31 9SB
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 £266,307, ranging from £207,392 to £305,506.
- 22 Portmarnock Way
4 Bed House | 14 m | Est. Value: £281,254
- 18 Portmarnock Way
4 Bed House | 23 m | Est. Value: £286,039
- 38 Portrush Drive
4 Bed House | 27 m | Est. Value: £305,506
- 16 Portmarnock Way
4 Bed House | 35 m | Est. Value: £261,195
- 6 Portmarnock Way
4 Bed House | 35 m | Est. Value: £272,152
Location Comparison
Our analysis of the public data ranks 20, Portmarnock Way, Grantham as the 9th largest and the 7th most expensive of the 29 addresses on Portmarnock Way, Grantham, NG31.
Against the NG31 postcode district average, it is £65k more expensive than the typical property.
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
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
