Find postcode

Tref Cybi

About

Tref Cybi ward encompasses Holyhead town and its immediate surrounding areas on Holy Island, part of Anglesey. The ward includes the busy port area, which handles ferry traffic to Ireland, and the town centre with its mix of retail and residential streets. The landscape transitions from the urban harbour to more open coastal stretches on its edges, providing views across the water.

A dominant feature is the medieval St. Cybi's Church, built within the walls of a Roman fort overlooking the harbour. The ward contains the historic Market Hall and the modern breakwater protecting the port. Life here is closely connected to maritime activities and the daily rhythm of ferry arrivals and departures, underpinning the local economy.

Area overview

On average Tref Cybi has None deprivation and high crime levels, with around 135 crimes per 1,000 residents per year. Approximately 26.7% of homes in this area are social housing provided by a local council or housing association. The average income per household in Tref Cybi is £39,709 per year. Tref Cybi is home to around 4,360 people, with a population density of about 1,272.1 per km2.

Crime rate

7/10

Crimes per 1k residents

135

Deprivation level

N/A

Income level

2/10

Connectivity

N/A

Area Profile

Tref Cybi Population

4,360

Population density

1,272.1 per km²

Crime

Violence and sexual offences

74.31(+119%)

Anti-social behaviour

42.66(+228%)

Shoplifting

27.29(+324%)

Criminal damage and arson

17.43(+137%)

Public order

12.39(+51%)

Wales average

Demographics

British

4,159

95.39%

Irish

0.99%

Other White

0.94%

Chinese

0.5%

White and Black Caribbean (mixed)

0.41%

Total population: 4,360

Economics

No qualifications

868

25.45%

Level 4 qualifications or above

643

18.85%

Level 3 (A level)

623

18.26%

Level 2 (GCSEs 9-4)

586

17.18%

Level 1 (GCSEs 3-1)

382

11.2%

Total 16+ residents: 3,411

Housing

Owns outright

502

24.79%

Social rents from council

484

23.9%

Private landlord or letting agency

418

20.64%

Owns with a mortgage

416

20.54%

Other social rented

127

6.27%

Total households: 2,025

Property prices in Tref Cybi

Based on 36 recent sales, the median property price is £130,000 in Tref Cybi area, with individual transactions ranging from £65,000 up to £337,000.

Price distribution per property type (last year)

Median sale price and percentiles per property type (last year)

Median sale price, sales count, and percentile information for each property type in Tref Cybi over the last year.
Type	Sales	Median	5th percentile	25th percentile (Lower quartile)	75th percentile (Upper quartile)	95th percentile
Detached	6	£227,500	£186,250	£221,250	£256,250	£319,000
Flats	2	£78,500	£78,050	£78,250	£78,750	£78,950
Semi-Detached	5	£181,600	£125,000	£135,000	£205,000	£265,000
Terraced	23	£115,000	£70,000	£97,500	£133,500	£164,000

10 years median price trend in Tref Cybi

All postcodes in Tref Cybi

LL651NH

Cambria Street

LL651DQ

London Road

LL652AE

Ffordd Fer

LL651SH

Upper Baptist Street

LL652EG

Peibio Close

LL651SL

Upper Baptist Street

LL652UX

London Road

LL652FH

Gerddi Canada

LL652DF

Turkey Shore Road

LL651UD

Victoria Road

LL652PH

Llanfawr Close

LL652BB

Keffi Street

LL651SD

Roberts Street

LL651TY

Longford Terrace

LL651RN

William Street

LL652PR

Penrhos Beach Road

LL652DA

Bwlchalltran

LL652EU

Llanfawr Close

LL651TS

Brixton Mount

LL652PU

Cyttir Road

LL652GA

Llanfawr Close

LL652HA

Llanfawr Road

LL651BW

Boston Street

LL652PA

Garden Place

LL652PS

Penrhos Beach Road

LL652JA

London Road

LL652PN

Cae Braenar

LL651DJ

London Road

LL652PD

Lon Deg

LL651SE

Baptist Street

LL651HH

Stanley Street

LL651RU

Ucheldre Avenue

LL652UW

Parc Busnes Penrhos

LL652NR

Gilbert Street

LL652EL

Tref Cybi

LL652EB

Bryn Glas Close

LL652EA

Morawelon Road

LL651UL

Market Street

LL651SG

Upper Baptist Street

LL651RS

Thomas Street

LL651BH

Garreg Domas

LL652AU

Lhassa Street

LL652SZ

Canada Gardens

LL652HN

Turkey Shore Road

LL652ED

Morawelon Road

LL652RB

London Road

LL652HU

Holborn Close

LL651SF

Upper Baptist Street

LL652EE

Beach Close

LL652DB

Priory Close

LL652ET

Bryn Glas Road

LL652PL

Llanfawr Road

LL651SA

Edmund Street

LL652NE

London Road

LL651BU

Swiftsquare

LL652EF

Ffordd Beibio

LL651HG

Stanley Street

LL652TJ

London Road

LL651ND

Hill Street

LL652JD

London Road

LL651DS

St Cybi Street

LL652DU

Ffordd Tudur

LL651UR

Victoria Terrace

LL652PY

Bryn Erw Road

LL651BY

Stanley Terrace

LL652PE

Ffordd Feurig

LL652DW

Priory Lane

LL652AT

Holborn Road

LL652JB

London Road

LL652DL

Ffordd Tudur

LL652PT

Yr Erw

LL652DN

Ty Mawr Estate

LL652DY

Maes Yr Ysgol

LL652HB

Picinhirnos Lane

LL651UF

Market Square

LL652HE

Windsor Villas

LL652RD

Morrison Crescent

LL651UN

Market Street

LL652QA

Penrhos Beach Road

LL652EN

Ffordd Beibio

LL652HG

Richmond Hill

LL651UB

Lands End

LL652NU

Lligwy Street

LL652DH

Ffordd Tudur

LL652BU

Black Bridge

LL652NG

Wian Street

LL652RG

Tan Yr Allt

LL651TT

Forcer Hill

LL651TU

Longford Road

LL652FD

London Road

LL652NW

London Road

LL652FF

Hen Iard Goed

LL651ED

Water Street

LL652DS

Ffordd Tudur

LL652FG

Llanfawr Close

LL652EY

Llanfawr Close

LL651DX

London Road

LL652DR

Cybi Close

LL652FA

Tref Cybi

LL652PF

Ffordd Jasper

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 16/05/2026.

HM Land Registry • Police.uk • DfE • ONS • TfL • National Rail

Find postcode

Tref Cybi

Interactive map displaying Tref Cybi

About

Area overview

Area Profile

Crime

Crime per 1,000 population

Demographics

Ethnic groups

Economics

Education (age 16+)

Housing

Housing tenure

Property prices in Tref Cybi

All postcodes in Tref Cybi

Data Sources