Marconi's First Radio Factory
1, HALL STREET
Listed on the National Heritage List for England. Search over 400,000 listed places
Overview
- Heritage Category:
- Listed Building
- Grade:
- II
- List Entry Number:
- 1141330
- Date first listed:
- 06-Feb-1974
- List Entry Name:
- Marconi's First Radio Factory
- Statutory Address:
- 1, HALL STREET
Location
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Images of England Project
- Date:
- 1999-08-20
- Reference:
- IOE01/00376/03
- Rights:
- © Mr G.W. Garthwaite. Source: Historic England Archive
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Discover moreOfficial list entry
- Heritage Category:
- Listed Building
- Grade:
- II
- List Entry Number:
- 1141330
- Date first listed:
- 06-Feb-1974
- Date of most recent amendment:
- 14-Dec-1978
- List Entry Name:
- Marconi's First Radio Factory
- Statutory Address 1:
- 1, HALL STREET
- Statutory Address 2:
- THE OLD SILK MILL BUILDING, HALL STREET
The scope of legal protection for listed buildings
This List entry helps identify the building designated at this address for its special architectural or historic interest.
Unless the List entry states otherwise, it includes both the structure itself and any object or structure fixed to it (whether inside or outside) as well as any object or structure within the curtilage of the building.
For these purposes, to be included within the curtilage of the building, the object or structure must have formed part of the land since before 1st July 1948.
The scope of legal protection for listed buildings
This List entry helps identify the building designated at this address for its special architectural or historic interest.
Unless the List entry states otherwise, it includes both the structure itself and any object or structure fixed to it (whether inside or outside) as well as any object or structure within the curtilage of the building.
For these purposes, to be included within the curtilage of the building, the object or structure must have formed part of the land since before 1st July 1948.
Location
- Statutory Address:
- 1, HALL STREET
- Statutory Address:
- THE OLD SILK MILL BUILDING, HALL STREET
The building or site itself may lie within the boundary of more than one authority.
- County:
- Essex
- District:
- Chelmsford (District Authority)
- Parish:
- Non Civil Parish
- National Grid Reference:
- TL 71002 06305
Details
This list entry was subject to a Minor Amendment on 10/11/2016
TL 7006 SE 5/63
TL 70 NW 7/63
HALL STREET
The Old Silk Mill Building and 1 Hall Street
Marconi's First Radio Factory
(Formerly listed as The Old Silk Mill Building and 1 Hall Street, previously listed as "Marconi" Radio Factory, HALL STREET, and previously listed as Marconi's first radio factory under Hall Street/Mildmay Road)
6.2.74.
II
Former silk mill, built by John Hall of Coggeshall in 1856. Acquired by the Courtaulds of Braintree in 1865, then by Marconi in 1899 and used as the world’s first wireless factory. Of gault brick with parapetted south facade having Tuscan pilasters and partly stuccoed entablature with brick dentil course over radiused corner. Brick plinth. Two-storeys with metal industrial type windows having glazing bars and segmental brick arches. Roof clad with slate, plan roughly square with one curved corner. Plaque on the east wall commemorates Marconi's first factory. Converted into 6 flats and a commercial unit in 2016.
Listing NGR: TL7100206305
Legacy
The contents of this record have been generated from a legacy data system.
- Legacy System number:
- 352506
- Legacy System:
- LBS
Legal
This building is listed under the Planning (Listed Buildings and Conservation Areas) Act 1990 as amended for its special architectural or historic interest.
Map
This map is for quick reference purposes only and may not be to scale. This copy shows the entry on 20-Jun-2026 at 02:20:04.
Download a full scale map (PDF)End of official list entry
All text content is available under the Open Government Licence v3.0 , except where otherwise stated. Any supplied maps are © Crown Copyright [and database rights] 2026 OS AC0000815036 and may not be reproduced without permission.