Postcode district report · August 2026

LL23, Gwynedd

LL23 is the 15th Hapiest of Gwynedd's 15 postcode districts on the HPAI Swatch, which compares them with each other on prices, how the market is moving, energy efficiency and transport.

Homes sold
20
in the 12 months to August 2026
Median price
£177,000
-37.0% on the year before
Price per m²
£1,869
median, homes with an EPC
Flats
0%
of homes sold

LL23 on the HPAI Swatch

Each tile ranks LL23 against the other postcode districts of Gwynedd.

Price per m²£1,869/m² 13th of 15
Price change-37.0% 15th of 15
Sales a year20 a year 14th of 15
Sales change-52.1% 15th of 15
Energy efficiency64 EPC score 3rd of 15
Carbon3.6 t CO₂ a home 2nd of 15
Station nearby24.3 km 15th of 15
Yellow the best in Gwynedd Green above average Blue below average Purple weakest in Gwynedd

Yellow is Hapi: the more yellow, the better LL23 compares with the rest of Gwynedd. These colours compare postcode districts within Gwynedd; Gwynedd's own Swatch compares it with areas across England and Wales.

Gwynedd's postcode districts, Hapiest first

#Postcode districtSwatchHomes soldMedian pricePrice change
1 LL57 202£186,750 +6.7%
2 LL46 37£240,000 +45.5%
3 LL53 178£267,500 +7.2%
3 LL36 58£205,000 +7.2%
5 LL42 33£200,000 +0.0%
6 LL55 192£205,000 -2.4%
7 LL56 35£210,000 -5.6%
8 LL48 31£143,500 -9.5%
8 LL35 20£249,250 -36.9%
10 LL49 45£200,000 +3.9%
10 LL52 30£210,000 -23.3%
12 LL41 74£123,000 -7.3%
13 LL54 100£169,000 +3.2%
14 LL40 45£176,500 -11.8%
15 LL23 20£177,000 -37.0%

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About these figures

Price per m²
Median price per square metre of homes sold in the last 12 months (homes with an EPC).
Price change
Median price in the last 12 months against the 12 months before.
Sales a year
Open-market sales in the last 12 months. More sales means a deeper, easier market.
Sales change
Sales in the 12 months to three months ago against the year before. The newest months are left out: Land Registry registers sales late.
Energy efficiency
Average EPC energy efficiency score of homes sold (higher is more efficient).
Carbon
Average carbon emissions of homes sold, tonnes a year. Lower is better.
Station nearby
Median distance from homes sold to the nearest railway station. Closer is better.

Open-market sales from HM Land Registry Price Paid Data in the 12 months to August 2026 (homes in Gwynedd only); price per m², energy and carbon from the homes sold that have an Energy Performance Certificate. Postcode districts with fewer than 20 sales a year in Gwynedd aren't ranked.