St Mary Cottages is a Grade II listed building in the Bromley local planning authority area, England. First listed on 25 January 1994. Cottage. 6 related planning applications.

St Mary Cottages

WRENN ID
ruined-timber-bone
Grade
II
Local Planning Authority
Bromley
Constituency
Bromley and Biggin Hill MP: Peter Fortune (Con)
Country
England
Date first listed
25 January 1994
Type
Cottage
Address
St Mary Cottages, 12-30, Baston Road
OS grid reference
TQ 405 660
Coordinates
51.37593, 0.01831
Source
Historic England listing

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

Description

A row of ten cottages built between 1886 and 1888 by George Devey for Everard Alexander Hambro, with supervision and completion by James Williams. The cottages are constructed of brick in a rat-trap bond, with roughcast to the first floor and tile hanging to the sides and rear. They have tiled roofs. The cottages are arranged over two storeys, each being one bay wide and typically set in pairs, with paired front doors and rear wings; the end cottages project forward. The first floor is jettied over the canted ground-floor bay windows. Prominent stacks are positioned on the cross-walls and at the ends of the row. The street facade exhibits a symmetrical design. All first-floor windows are timber casements with leaded lights, each of three lights and set on small wooden brackets; those on the end cottages have pediments. The ground floor features four-light canted windows. The front doors are panelled with two leaded lights, with some replacements and the door to number 12 having been moved. The rear windows are also casement windows with leaded lights, some with arched brick heads and some renewed. The cottages are notable as an example of George Devey adopting a formal architectural composition.

Local climate

St Mary Cottages sits in a drier-than-average part of the UK, with an average of 720 mm of rain a year. This makes it drier than 81% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 87% of listed buildings.

It experiences an average of 34 freeze-thaw cycles a year, fewer than 51% 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • Sale history — 20 transactions since 1996
  • Related listed building consents — 6 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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