According to data from HM Land Registry, 18, Lon-Y-Llyn, Caerphilly sits on a plot of 214 m².

We have plot size data on 14 out of 15 other houses in the postcode and 18, Lon-Y-Llyn, Caerphilly sits on the 13th largest plot.

18, Lon-Y-Llyn, Caerphilly has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 20 Mar 2018.

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 the Land Registry and our network of Estate Agents, there have been 165 sales of properties similar to 18, Lon-Y-Llyn, Caerphilly within a radius of 620 metres since 2015.

The most recent example is 2, Plas Grug, Caerphilly, CF83 1NS, a freehold house which sold for £275,000 on the 17th April 2026.

Read more about house prices in CF83.

• Sold Apr 2026£275,000 | 3 Bed House2, Plas Grug, Caerphilly, CF83 1NS2, Plas Grug, Caerphilly, CF83 1NS
• Sold Oct 2025£238,000 | 3 Bed House32, Bryngwyn, Caerphilly, CF83 1ET32, Bryngwyn, Caerphilly, CF83 1ET
• Sold Sep 2025£290,000 | 3 Bed House37, Beech Tree View, Caerphilly, CF83 1DX37, Beech Tree View, Caerphilly, CF83 1DX
• Sold Aug 2025£285,000 | 3 Bed House38, Beech Tree View, Caerphilly, CF83 1DX38, Beech Tree View, Caerphilly, CF83 1DX
• Sold Jun 2025£209,000 | 3 Bed House28, St. Christophers Drive, Caerphilly, CF83 1DD28, St. Christophers Drive, Caerphilly, CF83 1DD
• Sold Jun 2025£255,000 | 3 Bed House19, St. Teilos Way, Caerphilly, CF83 1FA19, St. Teilos Way, Caerphilly, CF83 1FA
• Sold Jun 2025£200,000 | 3 Bed House19, St. Ilans Way, Caerphilly, CF83 1EW19, St. Ilans Way, Caerphilly, CF83 1EW
• Sold May 2025£225,000 | 3 Bed House38, St. Teilos Way, Caerphilly, CF83 1FA38, St. Teilos Way, Caerphilly, CF83 1FA
• Sold May 2025£275,000 | 3 Bed House20, Lon Hafren, Caerphilly, CF83 1NR20, Lon Hafren, Caerphilly, CF83 1NR
• Sold Feb 2025£335,000 | 3 Bed House31, St. Teilos Way, Caerphilly, CF83 1FA31, St. Teilos Way, Caerphilly, CF83 1FA
• Sold Sep 2024£269,000 | 3 Bed House8, St. Davids Way, Caerphilly, CF83 1EY8, St. Davids Way, Caerphilly, CF83 1EY
• Sold Sep 2024£285,000 | 3 Bed House10, St. Asaphs Way, Caerphilly, CF83 1EX10, St. Asaphs Way, Caerphilly, CF83 1EX
• Sold Jul 2024£267,500 | 3 Bed House25, Y Dolydd, Caerphilly, CF83 1NT25, Y Dolydd, Caerphilly, CF83 1NT
• Sold May 2024£5,000 | 3 Bed House88, St. Davids Way, Caerphilly, CF83 1EZ88, St. Davids Way, Caerphilly, CF83 1EZ
• Sold May 2023£255,000 | 3 Bed House18, Plas Grug, Caerphilly, CF83 1NS18, Plas Grug, Caerphilly, CF83 1NS
• Sold Jan 2023£190,000 | 3 Bed House72, St. Christophers Drive, Caerphilly, CF83 1DE72, St. Christophers Drive, Caerphilly, CF83 1DE
• Sold Aug 2019£180,000 | 3 Bed House1, St. Julians Court, Caerphilly, CF83 1DN1, St. Julians Court, Caerphilly, CF83 1DN
• Sold Aug 2018£178,000 | 3 Bed House112, St. Christophers Drive, Caerphilly, CF83 1DE112, St. Christophers Drive, Caerphilly, CF83 1DE
• Sold Jul 2016£144,000 | 3 Bed House24, St. Christophers Drive, Caerphilly, CF83 1DD24, St. Christophers Drive, Caerphilly, CF83 1DD
• Sold Jun 2015£138,500 | 3 Bed House110, St. Christophers Drive, Caerphilly, CF83 1DE110, St. Christophers Drive, Caerphilly, CF83 1DE

Lon-Y-Llyn, Caerphilly, CF83 has a total of 30 addresses. According to our analysis of all the public data, 18, Lon-Y-Llyn, Caerphilly is the 19th largest and the 27th most expensive property on the street.

When compared to the postcode district it is £39k more expensive than the average property in CF83.

• Aber

  |

  500 m away
• Caerphilly

  |

  900 m away
• Energlyn & Churchill Park

  |

  1.4 km away

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