According to data from HM Land Registry, 3, Portmarnock Way, Grantham sits on a plot of 185 m².

We have plot size data on 27 out of 29 other houses in the postcode and 3, Portmarnock Way, Grantham sits on the 22nd largest plot.

3, Portmarnock Way, Grantham has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 10 Jul 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, 3, Portmarnock Way, Grantham was last sold on 18th December 2024 for £236,000 and was recorded as a freehold house.

The property has had 4 sales since 1995.

Since December 2024, the market for similar properties has dropped by 15.8%.

• Sold Dec 2024£236,000
• Sold Nov 2013£125,000
• Sold Jun 2007£148,500

According to the Land Registry and our network of Estate Agents, there have been 177 sales of properties similar to 3, Portmarnock Way, Grantham within a radius of 700 metres since 2019.

The most recent example is 9, Carnoustie Close, Grantham, NG31 9FF, a freehold house which sold for £260,000 on the 9th December 2025.

Read more about house prices in NG31.

• Sold Dec 2025£260,000 | 3 Bed House9, Carnoustie Close, Grantham, NG31 9FF9, Carnoustie Close, Grantham, NG31 9FF
• Sold Oct 2025£197,500 | 3 Bed House38, Portmarnock Way, Grantham, NG31 9FL38, Portmarnock Way, Grantham, NG31 9FL
• Sold Sep 2025£218,000 | 3 Bed House14, Blairgowie Close, Grantham, NG31 9FJ14, Blairgowie Close, Grantham, NG31 9FJ
• Sold Mar 2025£225,000 | 3 Bed House23, Portmarnock Way, Grantham, NG31 9FL23, Portmarnock Way, Grantham, NG31 9FL
• Sold Oct 2024£235,000 | 3 Bed House6, Woodbrook, Grantham, NG31 9FT6, Woodbrook, Grantham, NG31 9FT
• Sold Sep 2024£260,000 | 3 Bed House10, Hoylake, Grantham, NG31 9FS10, Hoylake, Grantham, NG31 9FS
• Sold Sep 2024£210,000 | 3 Bed House49, Cavendish Way, Grantham, NG31 9FN49, Cavendish Way, Grantham, NG31 9FN
• Sold Aug 2024£190,000 | 3 Bed House16, Woodbrook, Grantham, NG31 9FT16, Woodbrook, Grantham, NG31 9FT
• Sold Aug 2024£186,000 | 3 Bed House18, Woodbrook, Grantham, NG31 9FT18, Woodbrook, Grantham, NG31 9FT
• Sold May 2024£172,500 | 3 Bed House19, Portmarnock Way, Grantham, NG31 9FL19, Portmarnock Way, Grantham, NG31 9FL
• Sold May 2023£200,000 | 3 Bed House47, Portrush Drive, Grantham, NG31 9GD47, Portrush Drive, Grantham, NG31 9GD
• Sold Nov 2022£218,000 | 3 Bed House14, Tom Childs Close, Grantham, NG31 9FR14, Tom Childs Close, Grantham, NG31 9FR
• Sold May 2022£230,000 | 3 Bed House49, Portrush Drive, Grantham, NG31 9GD49, Portrush Drive, Grantham, NG31 9GD
• Sold Mar 2022£260,380 | 3 Bed House32, Portrush Drive, Grantham, NG31 9GD32, Portrush Drive, Grantham, NG31 9GD
• Sold Mar 2022£250,000 | 3 Bed House25, Portrush Drive, Grantham, NG31 9GD25, Portrush Drive, Grantham, NG31 9GD
• Sold Dec 2021£235,000 | 3 Bed House35, Tom Childs Close, Grantham, NG31 9FR35, Tom Childs Close, Grantham, NG31 9FR
• Sold Dec 2021£240,000 | 3 Bed House4, Woodbrook, Grantham, NG31 9FT4, Woodbrook, Grantham, NG31 9FT
• Sold Jun 2020£172,000 | 3 Bed House3, Blairgowie Close, Grantham, NG31 9FJ3, Blairgowie Close, Grantham, NG31 9FJ
• Sold Nov 2019£235,000 | 3 Bed House51, Cavendish Way, Grantham, NG31 9FN51, Cavendish Way, Grantham, NG31 9FN
• Sold Sep 2019£195,000 | 3 Bed House9, Blairgowie Close, Grantham, NG31 9FJ9, Blairgowie Close, Grantham, NG31 9FJ

Portmarnock Way, Grantham, NG31 has a total of 29 addresses. According to our analysis of all the public data, 3, Portmarnock Way, Grantham is the 16th largest and the 17th most expensive property on the street.

When compared to the postcode district it is £14k 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.