II*Church · listed 1966Parish Church of St. MaryPhoto: Richard Hoare · CC BY-SA 2.0
Parish Church of St. Mary · Photo: Richard Hoare · CC BY-SA 2.0–Not graded
History of Trefriw · Cadw
Trefriw: 46% of homes built before 1919
Against 15% in the typical town, Trefriw has 3 times the share. Cadw lists 12 buildings inside Trefriw’s built-up area, 333 for every 10,000 residents.
Listed buildings
12
333 per 10,000 residents
Grade I
0
exceptional interest
Grade II*
1
more than special interest
Scheduled monuments
0
nationally important sites
Homes built before 1919
46%
typical UK town 15%
In pictures
Landmarks of Trefriw
Nearly every Grade I and II* building, photographed. Tap a photo to step through them full screen.
Photos from Wikimedia Commons and Geograph, copied to our own server, each credited to its photographer with its licence; names open the building’s page or its official list entry.
The map
Where Trefriw’s history is
Every Grade I and II* building, monument and historic park.
Grade II*
Hover a dot for its name; tap one with a photo to open it.
12 listed buildings by grade
0 Grade I1 Grade II*11 Grade II
Cadw lists buildings of special architectural or historic interest in three grades: Grade I for buildings of exceptional interest, Grade II* for particularly important buildings of more than special interest, and Grade II for buildings of special interest. Listing protects the whole building, inside and out.
Every entry on Cadw’s register of listed buildings whose point lies inside the ONS 2022 built-up-area boundary. One list entry can cover a terrace or a group of buildings.
Grade II*
The Grade II* listed building in Trefriw
Particularly important buildings of more than special interest. Every one is photographed. Each opens its own page, with the official list entry.
Grade II
11 Grade II listed buildings
Most listed buildings are in this grade, which covers buildings of special interest. Open any building to read its official list entry.
All 11 Grade II listed buildings, A to Z
How the list grew
More than half of Trefriw’s listed buildings were added in one year, 1996
The year each building now on the list was first listed.
1996 · 71966 · 5
19501960197019801990200020102020
The first 5 entries were listed in 1966. 7 came in 1996. Only 0 have been added in the last 15 years.
Homes by age
46% of Trefriw’s homes were built before 1919
Every home by when it was built, from council tax records, against England & Wales (the dark tick).
44%
Before 1900
3.3%
1900–18
5%
1919–29
23%
1930s
5%
1945–54
8.3%
1955–64
1.7%
1965–72
1.7%
1973–82
1.7%
1983–92
3.3%
1993–99
3.3%
2000–08
0%
2009–15
0%
2016–25
TrefriwEngland & Wales
44% of homes are Victorian or older, against 16% across England and Wales. The busiest period since was the 1930s, which added 23% of today’s homes.
Valuation Office Agency, council tax stock of properties by build period, 31 March 2025, for the neighbourhoods (LSOAs) that make up the town, split by where their residents live. Homes with no recorded build period (0 here) are left out; 1939–44 is not a period in the data.
Neighbours
Listed buildings in the places around Trefriw
| Town | People | Listed | Grade I | History |
|---|---|---|---|---|
| Trefriw | 360 | 12 | 0 | — |
| Llanrwst | 2,463 | 37 | 1 | A |
| Llansanffraid Glan Conwy | 1,663 | 10 | 0 | B |
| Penmaenmawr | 2,762 | 7 | 0 | B |
| Dwygyfylchi | 1,403 | 1 | 0 | C− |
| Llanfairfechan | 3,547 | 70 | 0 | A+ |
| Conwy | 15,706 | 220 | 7 | A− |
| Bethesda | 3,757 | 37 | 1 | A |
In brief
Trefriw in brief
More of Trefriw’s homes are old than in most places: 46% were built before 1919, against 15% in the typical UK town. All told, the list holds 12 listed buildings. The big year was 1996, when 7 of the 12 went on the list.
Questions about Trefriw’s history
How many listed buildings are there in Trefriw?
Cadw lists 12 buildings inside Trefriw’s built-up area: 0 Grade I, 1 Grade II* and 11 Grade II.
When were Trefriw’s buildings listed?
The first in 1966; the most, 7, in 1996.
How old are the homes in Trefriw?
46% of homes were built before 1919 and 73% before 1940, from the Valuation Office Agency’s council tax records (March 2025).
Trefriw has no History Grade.
Listed buildings, scheduled monuments and historic parks and gardens: Cadw, © Crown copyright, via DataMapWales.
Sources: Cadw listed buildings, scheduled monuments and registered historic parks and gardens via DataMapWales, October 2026, inside the ONS 2022 built-up-area boundary · Valuation Office Agency, Council Tax: stock of properties by build period (31 March 2025) · TownRatings grades: our own summary of the data, ranked against UK towns only. All under the Open Government Licence v3.0.
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.