Over the past 29 years, there have been 14 property sales recorded in the LL55 1SE postcode area. The highest sale price reached £379,000, while the most recent sale was a property sold in July 2025 for £160,000.

The estimated average property value in LL55 1SE currently stands at £250,607, which is approximately 11.4% higher than the city average, indicating a potentially more desirable or in-demand location.

In terms of size, the average price per square metre is approximately £2,261.

Property prices in LL55 1SE have risen by 0.7% over the past year , with a total increase of 31.3% over the past five years , and a long-term rise of 74% over the past decade .

The most common type of property sold in the area is terraced, making up around 86% of transactions , followed by other and semi-detached.

Housing in LL55 1SE is predominantly owner-occupied, with an estimated 100% of homes being lived in by the owners.

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Property Sales

1 Castle Street, Caernarfon, Gwynedd, LL55 1SE

Today
£215,285
streetscan.co.uk estimate
12 Aug 2016
£169,950

11 Castle Street, Caernarfon, Gwynedd, LL55 1SE

🏠 Terraced
🛏️ 5bed
📐 1173 sq ft
Today
£235,932
streetscan.co.uk estimate
8 Oct 2020
£187,500
16 Sep 2010
£80,000
More details

13 Castle Street, Caernarfon, Gwynedd, LL55 1SE

Today
£158,181
streetscan.co.uk estimate
26 Oct 2015
£107,000
18 Dec 2009
£202,500
25 Sep 2007
£110,000
24 Jan 1997
£38,000

15 Castle Street, Caernarfon, Gwynedd, LL55 1SE

🏠 Terraced
🛏️ 6bed
📐 1350 sq ft
Today
£250,624
streetscan.co.uk estimate
9 Aug 2021
£220,000
26 Apr 2013
£96,500
More details

4 Castle Street, Caernarfon, Gwynedd, LL55 1SE

Today
£166,511
streetscan.co.uk estimate
1 Jul 2025
£160,000

6 Castle Street, Caernarfon, Gwynedd, LL55 1SE

Today
£106,246
streetscan.co.uk estimate
16 Dec 2014
£70,000
4 Nov 2011
£120,000

Llys Amaeth, 2 Castle Street, Caernarfon, Gwynedd, LL55 1SE

Today
£539,245
streetscan.co.uk estimate
22 Jun 2018
£379,000

Ty Madog, 13 Castle Street, Caernarfon, Gwynedd, LL55 1SE

🏠 Terraced
🛏️ 4bed
📐 990 sq ft
Today
£240,887
streetscan.co.uk estimate
15 Jul 2022
£235,000
More details

Area Insights

Data Sources

Properties at LL55 1SE appear fourteen times in the Land Registry records, with the latest transaction recorded on 1 Jul 2025. It also has three Energy Performance Certificates (EPC) entries, the earliest dating back to 9 Dec 2021. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.

Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.