According to data from HM Land Registry, Tyddyn Perthi, Caernarfon sits on a plot of 43,957 m².

We have plot size data on 12 out of 13 other houses in the postcode and Tyddyn Perthi, Caernarfon sits on the 2nd largest plot.

Tyddyn Perthi, Caernarfon has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 19 Jun 2013.

The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (oil).

According to the Land Registry and our network of Estate Agents, there have been 49 sales of properties similar to Tyddyn Perthi, Caernarfon within a radius of 2.6 kilometres since 2011.

The most recent example is 20, Cefn Dyffryn, Caernarfon, LL54 7TQ, a freehold house which sold for £212,000 on the 28th April 2026.

Read more about house prices in LL54.

• Sold Apr 2026£212,000 | 3 Bed House20, Cefn Dyffryn, Caernarfon, LL54 7TQ20, Cefn Dyffryn, Caernarfon, LL54 7TQ
• Sold Jun 2025£232,500 | 3 Bed HouseMin Y Mynydd, Caernarfon, LL54 7HRMin Y Mynydd, Caernarfon, LL54 7HR
• Sold Oct 2024£245,000 | 3 Bed House5 Rhes Gosen, Lon Llainffynnon, Caernarfon, LL54 7TR5 Rhes Gosen, Lon Llainffynnon, Caernarfon, LL54 7TR
• Sold May 2024£410,000 | 3 Bed HouseHafod Lwyfog, Caernarfon, LL54 7APHafod Lwyfog, Caernarfon, LL54 7AP
• Sold Feb 2024£220,000 | 3 Bed House1 Pen Parc, Caernarfon, LL54 6LF1 Pen Parc, Caernarfon, LL54 6LF
• Sold Dec 2023£180,000 | 3 Bed HouseCae'R Glyn, Y Grugan, Caernarfon, LL54 7TACae'R Glyn, Y Grugan, Caernarfon, LL54 7TA
• Sold Feb 2023£239,000 | 3 Bed HouseMin Awel, Caernarfon, LL54 7NNMin Awel, Caernarfon, LL54 7NN
• Sold Sep 2021£285,000 | 3 Bed HousePenceunant, Caernarfon, LL54 7PUPenceunant, Caernarfon, LL54 7PU
• Sold Mar 2021£210,000 | 3 Bed House1 Cilfodan Uchaf, Caernarfon, LL54 7AH1 Cilfodan Uchaf, Caernarfon, LL54 7AH
• Sold Jan 2021£272,000 | 3 Bed HouseTyddyn Isaf, Caernarfon, LL54 7AWTyddyn Isaf, Caernarfon, LL54 7AW
• Sold Nov 2020£260,000 | 3 Bed HouseWernlas, Caernarfon, LL54 7NNWernlas, Caernarfon, LL54 7NN
• Sold Jan 2019£164,000 | 3 Bed House29 Cae Sarn, Caernarfon, LL54 7TW29 Cae Sarn, Caernarfon, LL54 7TW
• Sold Dec 2018£222,000 | 3 Bed HouseBlodwyn, Caernarfon, LL54 7SABlodwyn, Caernarfon, LL54 7SA
• Sold May 2018£155,000 | 3 Bed House21 Cae Sarn, Caernarfon, LL54 7TW21 Cae Sarn, Caernarfon, LL54 7TW
• Sold Nov 2017£375,000 | 3 Bed HouseBryn Trallwyn Uchaf, Caernarfon, LL54 7SGBryn Trallwyn Uchaf, Caernarfon, LL54 7SG
• Sold Oct 2017£155,000 | 3 Bed HouseGrianfa, Caernarfon, LL54 7NNGrianfa, Caernarfon, LL54 7NN
• Sold Sep 2017£80,000 | 3 Bed HouseTawelfan, Caernarfon, LL54 7AHTawelfan, Caernarfon, LL54 7AH
• Sold Apr 2017£168,000 | 3 Bed House1, Bryn Ffynnon, Caernarfon, LL54 7EA1, Bryn Ffynnon, Caernarfon, LL54 7EA
• Sold Jun 2016£155,000 | 3 Bed HouseTy Clyd, Caernarfon, LL54 7BFTy Clyd, Caernarfon, LL54 7BF
• Sold Feb 2011£114,000 | 3 Bed House2 Bryn Gwenallt, Caernarfon, LL54 7UB2 Bryn Gwenallt, Caernarfon, LL54 7UB

Groeslon, Caernarfon, LL54 has a total of 284 addresses. According to our analysis of all the public data, Tyddyn Perthi, Caernarfon is the 161st largest and the 130th most expensive property on the street.

When compared to the postcode district it is £17k more expensive than the average property in LL54.

• Llanfairpwll

  |

  16.6 km away
• Criccieth

  |

  17.4 km away
• Bodorgan

  |

  18.0 km away

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