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AREA REPORT · GWYNEDD LL55

LL55.

Gwynedd

LL55 is an outcode in Gwynedd, covering the neighbourhoods of Caernarfon East, Llanberis & Deiniolen, Caernarfon West & Waunfawr, Bethel & Llanrug and Porthmadog. Over the last 12 months 180 properties changed hands — a median of £90k for flats (£1,601/sqm) and £204k for houses (£2,378/sqm). Housing stock peaks at EPC band D.

Recorded dwellings
8,706
residential addresses we hold records for
Across
4
sectors — see breakdown below
Sales
12 month
3 year
Flats
2
16
Houses
178
623
Recorded transactions across the area.
Median sale price
12 month
3 year
Flats
£90k
n = 2
£101k
n = 16
Houses
£204k
n = 178
£205k
n = 623
Median sale price across the window.
Median £/sqm
12 month
3 year
Flats
£1,601
n = 2
£1,727
n = 11
Houses
£2,378
n = 169
£2,305
n = 588
Typical price per square metre, where floor area is available.
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PRICE MATRIX
Sales by window, type, and floor area.
Headline price
Mean
Houses
▼Sliding
−5.5% vs 12m
−6.1% vs 3y
—£120k£240k£205k£204k£193k3Yn=62312Mn=1786Mn=52
Flats
·Limited data
— vs 12m
— vs 3y
—£60k£120k£101k£90k—3Yn=1612Mn=26Mn=0
Bar height = median sale price. Tick = mean. Trend word reads the joint state of the 6m-vs-12m and 6m-vs-3y tiers.
Size-normalised — £ per sqm
Mean
Houses
▼Cooling
−1.6% vs 12m
+1.5% vs 3y
£0£1,350£2,700£2,305£2,378£2,3403Yn=58812Mn=1696Mn=48
Flats
·Limited data
— vs 12m
— vs 3y
£0£950£1,900£1,727£1,601—3Yn=1112Mn=26Mn=0
From EPC-matched floor area. Hatched bars mark windows where fewer than 60% of sales matched a certificate.
›Show numbers
Houses · 6m
Avg £
£217k
n=52
Median £
£193k
n=52
Avg £/sqm
£2,404
n=48
Median £/sqm
£2,340
n=48
Houses · 12m
Avg £
£226k
n=178
Median £
£204k
n=178
Avg £/sqm
£2,536
n=169
Median £/sqm
£2,378
n=169
Houses · 3y
Avg £
£228k
n=623
Median £
£205k
n=623
Avg £/sqm
£2,394
n=588
Median £/sqm
£2,305
n=588
Flats · 6m
Avg £
—
n=0
Median £
—
n=0
Avg £/sqm
£0
n=0
Median £/sqm
£0
n=0
Flats · 12m
Avg £
£90k
n=2
Median £
£90k
n=2
Avg £/sqm
£1,601
n=2
Median £/sqm
£1,601
n=2
Flats · 3y
Avg £
£108k
n=16
Median £
£101k
n=16
Avg £/sqm
£1,696
n=11
Median £/sqm
£1,727
n=11
PRICE + VOLUME · 25Y
Medians and monthly sales, 2001–present.
£6k£113k£220k20052010201520202025Median house · 12m smoothedMedian flat · 12m smoothedSales volume (monthly)
EPC · 25Y
Certificates issued, by band.
Median EPC score
62
Median potential
81
063912782010201520202025
A
B
C
D
E
F
G
COUNCIL TAX
Band distribution.
Column width shows the number of properties in each council tax band. Colour shows the composition within that band.
Flats/maisonettes
Terraced
Bungalows
Band A
2,047
Terraced
Semi-detached
Band B
5,211
Terraced
Semi-detached
Band C
3,527
Terraced
Semi-detached
Detached
Bungalows
Band D
2,353
Semi-detached
Detached
Bungalows
Band E
1,801
Detached
Bungalows
Band F
686
Detached
Band G
149
Band H
0
Band I
0
Flats/maisonettes
Terraced houses
Semi-detached houses
Detached houses
Bungalows
Other/unknown
Property type totals
Flats/maisonettes
1,594
10%
Terraced houses
5,865
37%
Semi-detached houses
3,335
21%
Detached houses
3,162
20%
Bungalows
1,856
12%
Other/unknown
41
<1%
AMENITIES
Transport access and schools.
Counts of public transport stop points and schools inside the outcode (or within ~100m of the boundary). Drill into a sector for the full stop-by-stop list.
Rail stations
0
Metro & tram
6
Bus & coach
3
Bus stops
306
Schools
15
SECTORS
Drill down to sector.
Drill in
Open the full report for any LL55 sector.
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LL55 4
Sales193
House£213k
Flat—
LL55 2
Sales185
House£210k
Flat£52k
LL55 1
Sales170
House£195k
Flat£105k
LL55 3
Sales91
House£192k
Flat—
COVERAGE
Neighbourhoods and wards.
Neighbourhoods (MSOA)
5 · click column to sort
Caernarfon East
3,998
3,031
Llanberis & Deiniolen
2,474
1,924
Caernarfon West & Waunfawr
1,803
1,710
Bethel & Llanrug
1,416
1,632
Porthmadog
316
292
Wards
14 · click column to sort
Canol Tref Caernarfon
1,124
1,150
Menai
696
1,042
Llanberis
860
870
Peblig
1,511
750
Deiniolen
1,258
733
Llanrug
626
723
Hendre
663
599
Cwm-y-glo
521
534
Bethel a'r Felinheli
430
517
Waunfawr
537
465
Y Bontnewydd
405
377
Cadnant
865
358
Glaslyn
316
292
Penisa'r-waun
195
179
FAQ

LL55 property data — common questions

What is the average house price in Gwynedd (LL55)?
Over the last 12 months the median house sale price in LL55 (Gwynedd) was £204k, with an average of £226k, from 178 recorded sales (HM Land Registry).
How much do flats cost in LL55?
The median flat sale price in LL55 over the last 12 months was £90k (about £1,601 per square metre), from 2 recorded sales.
What is the price per square metre in LL55?
Typical sale prices per square metre in LL55 are £2,378 for houses and £1,601 for flats, where floor area is recorded on the energy certificate.
What EPC rating do homes in LL55 have?
Homes in LL55 most commonly hold EPC band D, with a median current energy-efficiency score of 62 (a potential of 81 after improvements).
How many properties sold in LL55 in the last year?
180 properties were sold in LL55 over the last 12 months, and 639 over the last three years (HM Land Registry Price Paid data).
REFRESHED 13 JUN 2026 ·DATA & SOURCES