Bron Derw is a Grade II listed building in the Conwy local planning authority area, Wales. First listed on 19 February 1993. Church.

Bron Derw

WRENN ID
deep-lintel-ebony
Grade
II
Local Planning Authority
Conwy
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
19 February 1993
Type
Church
Address
Bron Derw, Llanrwst
OS grid reference
SH 800 624
Coordinates
53.14572, -3.79556
Source
Cadw listing

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

Description

Bron Derw is a building constructed from local rubble, featuring a plinth and a hipped slate roof with boarded eaves. It has two rectangular stone chimneys on the ridge. The front of the building has three windows, with a central bay that is set slightly forward. The windows have deep stone lintels and are glazed with small pane hornless sashes, consisting of twelve panes over twelve, with a thicker central glazing bar.

On the ground floor, there is a central porch made of grey squared rubble, which has a parapet. The porch includes a window at the front flanked by narrow windows, with the current entrance door to the right and a former doorway to the left. There is a window on each side of the porch, mirroring those on the first floor. The left elevation features two windows that match those on the front, while the right elevation is similar, although the right windows are dummies painted with a glazing pattern to match the front.

At the rear, facing the stable yard, there is a northeast block. On the north side, there is a door, and on the west side, there are two small pane sash windows on the first floor (four panes over eight) and two windows on the ground floor that were formerly doors. At the northeast corner of this block, there is a stone archway leading to the stable yard. To the left of the block, there is one window on each floor that matches the front of the house. A small modern extension is located to the west.

Local climate

Bron Derw sits in one of the wettest parts of the UK, with an average of 1,200 mm of rain a year. This makes it wetter than 91% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 84% of listed buildings.

It experiences an average of 45 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 27 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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.

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