Ty Toronto is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 30 March 1951. House, terrace.

Ty Toronto

WRENN ID
sacred-facade-sorrel
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
30 March 1951
Type
House, terrace
Address
Ty Toronto, Porthmadog
OS grid reference
SH 568 383
Coordinates
52.92336, -4.13072
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Ty Toronto is a four-storey commercial and industrial building with an attic, featuring three bays. It is constructed from large blocks of dressed slate-stone arranged in regular courses, topped with a slate roof and end stacks that have slate caps. The central bay is set forward beneath a gable with bracketed eaves. The lower storey has a roughcast wall with windows that have been replaced in their original openings. It includes a shallow recessed small-pane bow window in the central bay, two windows in the left-hand bay (with the right-hand bay originally being a doorway), and a half-glazed door with an overlight and a window in the right-hand bay. The second, third, and fourth storeys feature two-light windows in the outer bays and former loading doors that have been converted to windows in the central bay. Beneath the apex of the central bay, there is an infilled former aperture for a pulley block. Additionally, two wide flat roof dormers were added in the later 20th century, each with three-light windows.

The left gable end, made of rubble stone, incorporates large slate-stone blocks laid in rough courses. It has replacement windows in the centre, and on the left side, there is a doorway under a canopy with a two-light window above it. The right gable end, also of rubble stone and facing Grisiau Mawr, features a glazed door at the second-storey level and replacement windows in the third and fourth storeys. The rear of the building has three raked half dormers and a three-light roof dormer on the left, similar to the front. The building has not been inspected.

Local climate

Ty Toronto sits in one of the wettest parts of the UK, with an average of 1,490 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 97% of listed buildings.

It experiences an average of 32 freeze-thaw cycles a year, fewer than 60% of listed buildings. Of these, 15 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

More on this building

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  • No EPC on record for this property
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  • Detailed attributes — period, style, materials, features
  • Flood risk assessment
  • Radon risk assessment
  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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