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Plas Penbwll

A Grade II Listed Building in Porthmadog, Gwynedd

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Latitude: 52.9245 / 52°55'28"N

Longitude: -4.1257 / 4°7'32"W

OS Eastings: 257199

OS Northings: 338458

OS Grid: SH571384

Mapcode National: GBR 5Q.MSBG

Mapcode Global: WH55L.LRMC

Entry Name: Plas Penbwll

Listing Date: 1 April 1974

Last Amended: 26 September 2005

Grade: II

Source: Cadw

Source ID: 85346

Location: At the E of a terrace of houses on the N side of Britannia Terrace (A487) and facing N.

County: Gwynedd

Town: Porthmadog

Community: Porthmadog

Community: Porthmadog

Built-Up Area: Porthmadog

Traditional County: Caernarfonshire

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One of a row of cottages erected for workmen at Britannia Foundry (which stood immediately to the E but has been demolished), which is not shown on the 1842 Tithe map but is mentioned in a trade directory of 1844. It appears always to have been a single cottage although the 1888 Ordnance Survey suggests that it was 2 small cottages.


A 2-storey double-fronted house of roughcast painted green with smooth-rendered architraves, and slate roof with an added small skylight. The entrance is offset to the R and has a replacement panel door. Windows are round-headed iron-framed windows with small-pane radial glazing, and incorporating small pivoting lights, probably cast at Britannia Foundry. The rear has replacement windows.


Not inspected.

Reasons for Listing

Listed as part of a terrace of workers' housing retaining good industrial character and original detail. A good example of a house type once common but now rarely well-preserved.

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