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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 very high deprivation and high crime levels, with around 151 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

151

Deprivation level

9/10

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

83.94(+129%)

Anti-social behaviour

41.28(+184%)

Shoplifting

27.75(+300%)

Criminal damage and arson

19.27(+138%)

Public order

13.99(+57%)

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 34 recent sales, the median property price is £131,000 in Tref Cybi area, with individual transactions ranging from £63,000 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	8	£227,500	£113,900	£208,750	£238,750	£311,800
Flats	2	£78,500	£78,050	£78,250	£78,750	£78,950
Semi-Detached	6	£128,750	£115,500	£120,625	£187,500	£261,250
Terraced	18	£127,500	£68,950	£100,000	£134,500	£173,250

10 years median price trend in Tref Cybi

All postcodes in Tref Cybi

LL652DB

Priory Close

LL651SH

Upper Baptist Street

LL651RA

Ucheldre Avenue

LL652DS

Ffordd Tudur

LL652PR

Penrhos Beach Road

LL652EF

Ffordd Beibio

LL651TU

Longford Road

LL652DH

Ffordd Tudur

LL652DN

Ty Mawr Estate

LL652EB

Bryn Glas Close

LL651UB

Lands End

LL652AT

Holborn Road

LL652ES

Bryn Glas Road

LL652RA

London Road

LL651RT

Garreg Domas

LL652DY

Maes Yr Ysgol

LL652PL

Llanfawr Road

LL651UW

Market Street

LL652DL

Ffordd Tudur

LL652NP

Cecil Street

LL651ED

Water Street

LL651TB

Fforddwynfa

LL652BB

Keffi Street

LL652EL

Tref Cybi

LL652TJ

London Road

LL652DT

Ffordd Tudur

LL652DA

Bwlchalltran

LL652BS

Llanfawr Road

LL652FA

Tref Cybi

LL651NB

Trearddur Square

LL652FJ

Hedsor Street

LL652EG

Peibio Close

LL652FE

Holborn Close

LL652HW

Rhos Y Gaer Terrace

LL652NT

Henry Street

LL652ER

Bryn Glas Close

LL652FD

London Road

LL652RF

Lewascote

LL651HG

Stanley Street

LL651SA

Edmund Street

LL652ED

Morawelon Road

LL652HB

Picinhirnos Lane

LL652ET

Bryn Glas Road

LL652PP

Llanfawr Road

LL652HF

Richmond Hill

LL652HH

Richmond Hill

LL652JB

London Road

LL652JE

Ffordd Caergybi

LL652PS

Penrhos Beach Road

LL652FF

Hen Iard Goed

LL652NS

London Road

LL652RG

Tan Yr Allt

LL652EY

Llanfawr Close

LL651SF

Upper Baptist Street

LL651SG

Upper Baptist Street

LL652EW

Nimrod Walk

LL652HN

Turkey Shore Road

LL651TZ

Longford Road

LL652JA

London Road

LL652PG

Ffordd Hirnos

LL652DU

Ffordd Tudur

LL652JD

London Road

LL652PB

London Road

LL652AE

Ffordd Fer

LL652NG

Wian Street

LL652DW

Priory Lane

LL651BW

Boston Street

LL652JF

Yr Hen Briordy

LL652PW

Digney Close

LL651NH

Cambria Street

LL651RU

Ucheldre Avenue

LL651TA

Hawthorne Terrace

LL651TT

Forcer Hill

LL652DE

Tref Cybi

LL652SZ

Canada Gardens

LL652HE

Windsor Villas

LL651DD

Stanley Crescent

LL651SE

Baptist Street

LL651UT

Victoria Terrace

LL652JG

Llain Bryniau

LL652RB

London Road

LL652DP

Ffordd Beibio

LL652PT

Yr Erw

LL652RE

London Road

LL652UW

Parc Busnes Penrhos

LL652UX

London Road

LL652BY

Tan Alltran Close

LL652HG

Richmond Hill

LL651DJ

London Road

LL652EA

Morawelon Road

LL652HD

Marchog

LL652NY

London Road

LL651NE

Hill Street

LL651SD

Roberts Street

LL652DR

Cybi Close

LL652PE

Ffordd Feurig

LL651DQ

London Road

LL651DS

St Cybi Street

LL651RN

William Street

LL651SP

High Terrace

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 16/01/2026.

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

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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