Our Data Sources
17, Portmarnock Way, Grantham has 21 entries in the Land Registry, most recently in July 2013 and a single entry in the EPC database dated August 2011.
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 17, Portmarnock Way, Grantham would be worth £203,680, with a potential rental value of £934 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £180,403, with a rental value of £827 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
17, Portmarnock Way, Grantham occupies a 219 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 16th largest.
Energy Efficiency
17, Portmarnock Way, Grantham has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 24 Aug 2011.
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
17, Portmarnock Way, Grantham last changed hands on 24th July 2013, selling for £141,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 38.2% since July 2013.
- Sold Jul 2013£141,000
- Sold Nov 2005£125,995
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 241 sales of comparable properties within 720 metres of 17, Portmarnock Way, Grantham since 2018.
Most recently, 91, Sunningdale, Grantham, NG31 9SB, a freehold house, sold at £175,000 on the 28th April 2026.
Read more about house prices in NG31.
- Sold Apr 2026£175,000 | 3 Bed House91, Sunningdale, Grantham, NG31 9SB91, Sunningdale, Grantham, NG31 9SB
- Sold Nov 2025£215,000 | 3 Bed House57, Portrush Drive, Grantham, NG31 9GD57, Portrush Drive, Grantham, NG31 9GD
- Sold Sep 2025£200,000 | 3 Bed House22, Woodbrook, Grantham, NG31 9FT22, Woodbrook, Grantham, NG31 9FT
- Sold May 2025£252,000 | 3 Bed House24, Tom Childs Close, Grantham, NG31 9FR24, Tom Childs Close, Grantham, NG31 9FR
- Sold Mar 2025£225,000 | 3 Bed House23, Portmarnock Way, Grantham, NG31 9FL23, 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 £243,195, ranging from £205,385 to £286,206.
- 19 Portmarnock Way
3 Bed House | 5 m | Est. Value: £222,261
- 21 Portmarnock Way
3 Bed House | 9 m | Est. Value: £222,961
- 15 Portmarnock Way
3 Bed House | 10 m | Est. Value: £221,206
- 11 Portmarnock Way
3 Bed House | 14 m | Est. Value: £216,922
- 10 Blairgowie Close
4 Bed House | 20 m | Est. Value: £258,616
Location Comparison
Our analysis of the public data ranks 17, Portmarnock Way, Grantham as the 29th largest and the 28th most expensive of the 29 addresses on Portmarnock Way, Grantham, NG31.
Against the NG31 postcode district average, it is £21k less 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.












