Ty Isa, including forecourt walls is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 16 March 1976. House. 2 related planning applications.

Ty Isa, including forecourt walls

WRENN ID
high-baluster-candle
Grade
II
Local Planning Authority
Conwy
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
16 March 1976
Type
House
Address
Ty Isa, including forecourt walls, 4 Trevor Street, Llandudno, LL30 2PN
OS grid reference
SH 781 825
Coordinates
53.32538, -3.8305
Source
Cadw listing

Also on this page: sale history · EPC · related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Ty Isa, comprising two attached houses at Nos 4 and 5 Trevor Street, Llandudno, dates to an unknown period. The houses are two storeys high and have pebbledashed exterior walls. They have slate roofs and rendered chimney stacks. Each house has a front elevation featuring two window bays and a door bay, with four-pane sash windows. A forecourt wall, constructed of stone rubble and partially repaired with brick, has been rendered with pebble-dash.

Local climate

Ty Isa, including forecourt walls sits in a wetter-than-average part of the UK, with an average of 1,100 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 76% of listed buildings.

It experiences an average of 34 freeze-thaw cycles a year, fewer than 51% of listed buildings. Of these, 18 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • Sale history — 1 transaction since 2021
  • Related listed building consents — 2 applications
  • 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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Nearby listed buildings

  1. 5 Trevor Street, including forecourt walls and rear garden wall Grade II 11 m
  2. 5 Ty-Isa Road, including front garden wall Grade II 19 m
  3. 4 Ty-Isa Road, including front garden wall Grade II 22 m
  4. 3 Ty-Isa Road, including front garden wall Grade II 26 m
  5. 2 Ty-Isa Road Grade II 30 m
  6. 1 Ty-Isa Road, including front garden wall Grade II 34 m
  7. Yorkshire Building Society Grade II 43 m
  8. 107 Mostyn Street Grade II 43 m
  9. 109 Mostyn Street Grade II 45 m
  10. Merrion Hotel Grade II 45 m