Nos. 9 & 11 Lon Isa is a Grade II listed building in the Cardiff local planning authority area, Wales. First listed on 30 November 2001. Semi-detached houses.
Nos. 9 & 11 Lon Isa
- WRENN ID
- inner-slate-twilight
- Grade
- II
- Local Planning Authority
- Cardiff
- Constituency
- Cardiff North MP: Anna McMorrin (Lab)
- Country
- Wales
- Date first listed
- 30 November 2001
- Type
- Semi-detached houses
- Address
- Nos. 9 & 11 Lon Isa, Rhiwbina Garden Village (N), Rhiwbina
- OS grid reference
- ST 158 812
- Coordinates
- 51.52345, -3.2144
- Source
- Cadw listing
Description
Nos. 9 and 11 Lon Isa are a pair of semi-detached houses dating from the 19th century. They are two storeys tall and feature roughcast render on their exterior. The houses have small pane casement glazing and a slate roof with chimneys located at the centre and ends. In the centre, there are two gables, each with a three-light window on the upper floor and a four-light window on the ground floor. The outer bays have a two-light window on the ground floor only, and the entrances are located on the sides of the houses.
Local climate
Nos. 9 & 11 Lon Isa sits in a wetter-than-average part of the UK, with an average of 1,080 mm of rain a year. This makes it wetter than 86% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.
It experiences an average of 22 freeze-thaw cycles a year, fewer than 77% of listed buildings. Of these, 8 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
Sign in or create a free account to unlock:
- No EPC on record for this property
- Sale history — 1 transaction since 2003
- No related consent applications matched
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
Similar buildings
The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.
this building 1 similar nearby listed buildings