According to data from HM Land Registry, 27, Portmarnock Way, Grantham sits on a plot of 267 m².

We have plot size data on 27 out of 29 other houses in the postcode and 27, Portmarnock Way, Grantham sits on the 10th largest plot.

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

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

According to HM Land Registry, 27, Portmarnock Way, Grantham was last sold on 16th August 2024 for £270,000 and was recorded as a freehold house.

The property has had 4 sales since 1995.

Since August 2024, the market for similar properties has dropped by 9.7%.

• Sold Aug 2024£270,000
• Sold Aug 2017£200,000
• Sold May 2014£165,500

According to the Land Registry and our network of Estate Agents, there have been 133 sales of properties similar to 27, Portmarnock Way, Grantham within a radius of 740 metres since 2015.

The most recent example is 84, Sunningdale, Grantham, NG31 9SB, a freehold house which sold for £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 Sep 2025£218,000 | 3 Bed House14, Blairgowie Close, Grantham, NG31 9FJ14, Blairgowie Close, Grantham, NG31 9FJ
• Sold Feb 2025£295,000 | 4 Bed House16, Portmarnock Way, Grantham, NG31 9FL16, Portmarnock Way, Grantham, NG31 9FL
• Sold Dec 2024£236,000 | 3 Bed House3, Portmarnock Way, Grantham, NG31 9FL3, Portmarnock Way, Grantham, NG31 9FL
• Sold Sep 2024£260,000 | 3 Bed House10, Hoylake, Grantham, NG31 9FS10, Hoylake, Grantham, NG31 9FS
• Sold Sep 2024£217,000 | 4 Bed House5, Tom Childs Close, Grantham, NG31 9FR5, Tom Childs Close, Grantham, NG31 9FR
• Sold Sep 2024£272,400 | 4 Bed House31, Tom Childs Close, Grantham, NG31 9FR31, Tom Childs Close, Grantham, NG31 9FR
• 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 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 Feb 2022£235,000 | 3 Bed House19, Cavendish Way, Grantham, NG31 9FN19, Cavendish Way, Grantham, NG31 9FN
• Sold Nov 2021£286,500 | 4 Bed House17, Blairgowie Close, Grantham, NG31 9FJ17, Blairgowie Close, Grantham, NG31 9FJ
• Sold Jun 2021£269,950 | 3 Bed House10, St. Pierre Avenue, Grantham, NG31 9FH10, St. Pierre Avenue, Grantham, NG31 9FH
• Sold Mar 2021£190,000 | 4 Bed House19, Tom Childs Close, Grantham, NG31 9FR19, Tom Childs Close, Grantham, NG31 9FR
• Sold May 2015£177,000 | 4 Bed House10, Blairgowie Close, Grantham, NG31 9FJ10, Blairgowie Close, Grantham, NG31 9FJ

Portmarnock Way, Grantham, NG31 has a total of 29 addresses. According to our analysis of all the public data, 27, Portmarnock Way, Grantham is the 14th largest and the 14th most expensive property on the street.

When compared to the postcode district it is £45k more expensive than the average property in NG31.

• 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

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.