16, Portmarnock Way, Grantham occupies a 337 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 4th largest.

16, Portmarnock Way, Grantham has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 06 Sep 2024.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

16, Portmarnock Way, Grantham last changed hands on 28th February 2025, selling for £295,000. 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 dropped by 10.5% since February 2025.

• Sold Feb 2025£295,000
• Sold Feb 2006£179,995

Land Registry records and our Estate Agent network show 137 sales of comparable properties within 700 metres of 16, Portmarnock Way, Grantham since 2017.

Most recently, 84, Sunningdale, Grantham, NG31 9SB, a freehold house, sold at £278,000 on the 16th December 2025.

Read more about house prices in NG31.

• Sold Dec 2025£278,000 | 4 Bed House84, Sunningdale, Grantham, NG31 9SB84, Sunningdale, Grantham, NG31 9SB
• Sold Oct 2025£250,500 | 3 Bed House8, Prestwick Close, Grantham, NG31 9GB8, Prestwick Close, Grantham, NG31 9GB
• Sold Aug 2025£252,000 | 3 Bed House11, St. Georges Way, Grantham, NG31 9GJ11, St. Georges Way, Grantham, NG31 9GJ
• Sold Jul 2025£297,500 | 3 Bed House5, Berkshire Drive, Grantham, NG31 9GF5, Berkshire Drive, Grantham, NG31 9GF
• Sold Mar 2025£340,000 | 4 Bed House87, Sunningdale, Grantham, NG31 9SB87, Sunningdale, Grantham, NG31 9SB
• Sold Sep 2024£217,000 | 4 Bed House5, Tom Childs Close, Grantham, NG31 9FR5, Tom Childs Close, Grantham, NG31 9FR
• Sold Aug 2024£270,000 | 4 Bed House27, Portmarnock Way, Grantham, NG31 9FL27, Portmarnock Way, Grantham, NG31 9FL
• Sold Mar 2024£285,000 | 3 Bed House12, Hoylake, Grantham, NG31 9FS12, Hoylake, Grantham, NG31 9FS
• Sold Dec 2023£245,000 | 3 Bed House78, Sunningdale, Grantham, NG31 9SB78, Sunningdale, Grantham, NG31 9SB
• Sold Dec 2023£300,000 | 4 Bed House7, Ganton Way, Grantham, NG31 9FD7, Ganton Way, Grantham, NG31 9FD
• Sold Sep 2023£250,000 | 3 Bed House74, Sunningdale, Grantham, NG31 9SB74, Sunningdale, Grantham, NG31 9SB
• Sold Aug 2023£267,000 | 3 Bed House24, Portrush Drive, Grantham, NG31 9GD24, Portrush Drive, Grantham, NG31 9GD
• Sold Jun 2023£290,000 | 4 Bed House7, Woodbrook, Grantham, NG31 9FT7, Woodbrook, Grantham, NG31 9FT
• Sold Mar 2023£257,000 | 3 Bed House19, St. Pierre Avenue, Grantham, NG31 9FH19, St. Pierre Avenue, Grantham, NG31 9FH
• Sold Nov 2022£259,000 | 4 Bed House17, Tom Childs Close, Grantham, NG31 9FR17, Tom Childs Close, Grantham, NG31 9FR
• Sold Oct 2022£290,000 | 3 Bed House6, St. Pierre Avenue, Grantham, NG31 9FH6, St. Pierre Avenue, Grantham, NG31 9FH
• Sold Mar 2022£250,000 | 3 Bed House25, Portrush Drive, Grantham, NG31 9GD25, Portrush Drive, Grantham, NG31 9GD
• Sold Jun 2021£269,950 | 3 Bed House10, St. Pierre Avenue, Grantham, NG31 9FH10, St. Pierre Avenue, Grantham, NG31 9FH
• Sold Oct 2019£235,000 | 4 Bed House85, Sunningdale, Grantham, NG31 9SB85, Sunningdale, Grantham, NG31 9SB
• Sold Nov 2017£232,000 | 4 Bed House3, Portrush Drive, Grantham, NG31 9GD3, Portrush Drive, Grantham, NG31 9GD

Our analysis of the public data ranks 16, Portmarnock Way, Grantham as the 13th largest and the 13th most expensive of the 29 addresses on Portmarnock Way, Grantham, NG31.

Against the NG31 postcode district average, it is £46k more expensive than the typical property.

• Belmont Community Primary School

  500 m away
• Belton Lane Community Primary School

  900 m away
• The Harrowby Church of England Primary School

  1.1 km away

• Kesteven and Grantham Girls' School

  1.9 km away
• The Priory Ruskin Academy

  2.0 km away
• The King's School, Grantham

  2.2 km away

• Grantham

  |

  2.8 km away
• Ancaster

  |

  8.8 km away
• Rauceby

  |

  12.5 km away

Environment Agency data suggests this area has a Very Low risk of flooding.