This browser is not fully supported by Historic England. Please update your browser to the latest version so that you get the best from our website.


List Entry Summary

This building is listed under the Planning (Listed Buildings and Conservation Areas) Act 1990 as amended for its special architectural or historic interest.


List entry Number: 1141914



The building may lie within the boundary of more than one authority.


District: Cornwall

District Type: Unitary Authority

Parish: Grade-Ruan

National Park: Not applicable to this List entry.

Grade: II

Date first listed: 20-May-1975

Date of most recent amendment: Not applicable to this List entry.

Legacy System Information

The contents of this record have been generated from a legacy data system.

Legacy System: LBS

UID: 64627

Asset Groupings

This list entry does not comprise part of an Asset Grouping. Asset Groupings are not part of the official record but are added later for information.

List entry Description

Summary of Building

Legacy Record - This information may be included in the List Entry Details.

Reasons for Designation

Legacy Record - This information may be included in the List Entry Details.


Legacy Record - This information may be included in the List Entry Details.


GRADE-RUAN POLTESCO SW 71 NW 6/47 Serpentine Factory, Carleon Cove 20 5 75 GV II

Show room and storehouse for serpentine factory now empty. Datestone in gable LSOL over 1866. Snecked serpentine blocks with scantle slate roof and clay ridge tiles. Built into bedrock with ground rising to north. South elevation: 3 storeys, symmetrical, gable ended. Ground, first and second floor openings under wide segmental arches with small rusticated keystones. C20 vertical timber boarding in openings. Datestone below gable. North elevation: one storey, symmetrical, gable ended with wide brick segmental arched opening in centre. Ruins of other earlier factory buildings to the west with quay to the south where flat bottom barges were loaded with serpentine chimney pieces and other architectural details worked at the factory. Factory ceased to operate in the early 1890s.

Listing NGR: SW7270615672

Selected Sources

Legacy Record - This information may be included in the List Entry Details

National Grid Reference: SW 72707 15671


© Crown Copyright and database right 2018. All rights reserved. Ordnance Survey Licence number 100024900.
© British Crown and SeaZone Solutions Limited 2018. All rights reserved. Licence number 102006.006.
Use of this data is subject to Terms and Conditions.

The above map is for quick reference purposes only and may not be to scale. For a copy of the full scale map, please see the attached PDF - 1141914 .pdf

The PDF will be generated from our live systems and may take a few minutes to download depending on how busy our servers are. We apologise for this delay.

This copy shows the entry on 15-Aug-2018 at 11:15:11.

End of official listing