According to data from HM Land Registry, 14, William Street, Caernarfon sits on a plot of 78 m².

We have plot size data on 38 out of 39 other houses in the postcode and 14, William Street, Caernarfon sits on the 9th largest plot.

14, William Street, Caernarfon has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Feb 2017.

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, 14, William Street, Caernarfon was last sold on 23rd June 2020 for £95,000 and was recorded as a freehold house.

The property has had 3 sales since 1995.

Since June 2020, the market for similar properties has risen by 50.0%.

• Sold Jun 2020£95,000
• Sold Jun 2006£98,650
• Sold Apr 2003£54,500

According to the Land Registry and our network of Estate Agents, there have been 67 sales of properties similar to 14, William Street, Caernarfon within a radius of 510 metres since 2011.

The most recent example is 47, Assheton Terrace, Caernarfon, LL55 2LD, a freehold house which sold for £146,250 on the 20th February 2026.

Read more about house prices in LL55.

• Sold Feb 2026£146,250 | 3 Bed House47, Assheton Terrace, Caernarfon, LL55 2LD47, Assheton Terrace, Caernarfon, LL55 2LD
• Sold Feb 2026£124,000 | 3 Bed House41, Assheton Terrace, Caernarfon, LL55 2LD41, Assheton Terrace, Caernarfon, LL55 2LD
• Sold Aug 2025£92,500 | 3 Bed House18, New Street, Caernarfon, LL55 2PU18, New Street, Caernarfon, LL55 2PU
• Sold Jun 2025£106,000 | 3 Bed House7, Tithebarn Street, Caernarfon, LL55 2RF7, Tithebarn Street, Caernarfon, LL55 2RF
• Sold Mar 2025£95,000 | 3 Bed House3, Cadnant Road, Caernarfon, LL55 1NA3, Cadnant Road, Caernarfon, LL55 1NA
• Sold Jan 2025£90,000 | 3 Bed House34, William Street, Caernarfon, LL55 1ND34, William Street, Caernarfon, LL55 1ND
• Sold Nov 2024£150,000 | 3 Bed House12, Holywell Terrace, Caernarfon, LL55 2AP12, Holywell Terrace, Caernarfon, LL55 2AP
• Sold Oct 2024£90,000 | 3 Bed House28, William Street, Caernarfon, LL55 1ND28, William Street, Caernarfon, LL55 1ND
• Sold Jul 2024£111,000 | 3 Bed House37, William Street, Caernarfon, LL55 1ND37, William Street, Caernarfon, LL55 1ND
• Sold Jun 2024£90,000 | 3 Bed House9, Assheton Terrace, Caernarfon, LL55 2LD9, Assheton Terrace, Caernarfon, LL55 2LD
• Sold Aug 2023£131,750 | 3 Bed House40, Chapel Street, Caernarfon, LL55 2PS40, Chapel Street, Caernarfon, LL55 2PS
• Sold Oct 2022£110,000 | 3 Bed House39, William Street, Caernarfon, LL55 1ND39, William Street, Caernarfon, LL55 1ND
• Sold Jun 2022£135,000 | 3 Bed House23, New Street, Caernarfon, LL55 2PU23, New Street, Caernarfon, LL55 2PU
• Sold May 2022£107,500 | 3 Bed House20, William Street, Caernarfon, LL55 1ND20, William Street, Caernarfon, LL55 1ND
• Sold Mar 2021£100,000 | 3 Bed House56, Chapel Street, Caernarfon, LL55 2PS56, Chapel Street, Caernarfon, LL55 2PS
• Sold Jul 2019£95,000 | 3 Bed House32, William Street, Caernarfon, LL55 1ND32, William Street, Caernarfon, LL55 1ND
• Sold Nov 2017£50,000 | 3 Bed House7, New Street, Caernarfon, LL55 2PU7, New Street, Caernarfon, LL55 2PU
• Sold Nov 2014£90,000 | 3 Bed House18, William Street, Caernarfon, LL55 1ND18, William Street, Caernarfon, LL55 1ND
• Sold Jan 2013£88,000 | 3 Bed House17, William Street, Caernarfon, LL55 1ND17, William Street, Caernarfon, LL55 1ND
• Sold Sep 2011£100,000 | 3 Bed House25, William Street, Caernarfon, LL55 1ND25, William Street, Caernarfon, LL55 1ND

William Street, Caernarfon, LL55 has a total of 39 addresses. According to our analysis of all the public data, 14, William Street, Caernarfon is the 14th largest and the 15th most expensive property on the street.

When compared to the postcode district it is £105k less expensive than the average property in LL55.

• Llanfairpwll

  |

  9.8 km away
• Bodorgan

  |

  12.2 km away
• Bangor (Gwynedd)

  |

  12.7 km away

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