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AREA REPORT · GWYNEDD LL54

LL54.

Gwynedd

LL54 is an outcode in Gwynedd, covering the neighbourhoods of Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle, Caernarfon West & Waunfawr, Cricieth & Llanaelhaearn and Porthmadog. Over the last 12 months 66 properties changed hands — a median of £0 for flats (£0/sqm) and £165k for houses (£2,203/sqm). Housing stock peaks at EPC band D.

Sales · 12m
66
329 over 3y
Houses · £/sqm
£2,203
n=59
Flats · £/sqm
£0
n=0
EPC score
55
Potential 82
PRICE MATRIX
Sales by window, type, and floor area.
Houses · 6m
Avg £
£182k
n=20
Median £
£149k
n=20
Avg £/sqm
£2,210
n=20
Median £/sqm
£2,293
n=20
Houses · 12m
Avg £
£204k
n=66
Median £
£165k
n=66
Avg £/sqm
£2,260
n=59
Median £/sqm
£2,203
n=59
Houses · 3y
Avg £
£190k
n=329
Median £
£160k
n=329
Avg £/sqm
£2,216
n=303
Median £/sqm
£2,056
n=303
Flats · 6m
Avg £
£0
n=0
Median £
£0
n=0
Avg £/sqm
£0
n=0
Median £/sqm
£0
n=0
Flats · 12m
Avg £
£0
n=0
Median £
£0
n=0
Avg £/sqm
£0
n=0
Median £/sqm
£0
n=0
Flats · 3y
Avg £
£0
n=0
Median £
£0
n=0
Avg £/sqm
£0
n=0
Median £/sqm
£0
n=0
£/sqm derives from EPC-matched floor area. Thin-coverage rows appear muted.
PRICE + VOLUME · 25Y
Medians and monthly sales, 2001–present.
£0k£93k£186k20052010201520202025Median house · 12m smoothedMedian flat · 12m smoothedSales volume (monthly)
EPC · 25Y
Certificates issued, by band.
03997972010201520202025
A
B
C
D
E
F
G
Total issued
COUNCIL TAX
Band distribution.
Council tax data coming in Phase 2.
SECTORS
Drill down to sector.
COVERAGE
Neighbourhoods and wards.
Neighbourhoods (MSOA)
4 · click column to sort
Pen-y-groes, Tal-y-sarn & Dyffryn Nantlle
3,558
3,055
Caernarfon West & Waunfawr
1,085
995
Cricieth & Llanaelhaearn
540
455
Porthmadog
5
1
Wards
11 · click column to sort
Llanllyfni
959
934
Y Groeslon
623
669
Tryfan
960
609
Pen-y-groes
776
607
Llanwnda
524
492
Clynnog
565
491
Yr Eifl
540
455
Y Bontnewydd
112
122
Waunfawr
107
121
Canol Tref Caernarfon
17
5
Dolbenmaen
5
1
LAND REGISTRY · EPC · ONS UPRN · GEOLYTIX · REFRESHED 25 APR 2026