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Latitude: 51.7387 / 51°44'19"N
Longitude: 0.4736 / 0°28'25"E
OS Eastings: 570892
OS Northings: 207337
OS Grid: TL708073
Mapcode National: GBR PKC.SPM
Mapcode Global: VHJK2.5K7H
Plus Code: 9F32PFQF+FF
Entry Name: Marconis
Listing Date: 21 November 1997
Grade: II
Source: Historic England
Source ID: 1031538
English Heritage Legacy ID: 468977
ID on this website: 101031538
Location: Chelmsford, Essex, CM1
County: Essex
District: Chelmsford
Electoral Ward/Division: Marconi
Parish: Non Civil Parish
Built-Up Area: Chelmsford
Traditional County: Essex
Lieutenancy Area (Ceremonial County): Essex
Church of England Parish: Cathedral Church of St Mary the Virgin, St Peter and St Cedd
Church of England Diocese: Chelmsford
Tagged with: Building Architectural structure Factory Edwardian architecture
CHELMSFORD
TL7007SE NEW STREET
926/1/10010 Marconi's
II
Offices and laboratory, now offices. 1912 by W Dunn and R Watson. Brown brick with limestone dressings and red clay tile window heads. Hipped slate roof with four brick ridge stacks with stone banding. Edwardian Baroque style. Two storeys; 3:5:1:5:3 fenestration with slightly projecting central bay and projecting side wings. There is a central domed clock turret with weathervane. Central bay has open pediment set over pilasters with stone banding set on balcony with wrought iron balustrade and ground floor with panelled double doors. First floor has cartouche over 36-pane sash set in Gibbs surround. Flat red brick arches over sashes with glazing bars; dentilled stone cornice; stone banding to quoins and wings. Similar 6 bay side elevations. Attached low brick wall with painted railings and opposite the entrance brick gate piers surmounted by iron lamp holders.
INTERIOR: Fine bolection-panelled entrance hall, with decorative wrought-iron balustrade to cantilevered staircase, modillioned cornice and Baroquye-style plasterwork to ceiling. Half-glazed doors from hall to rear passages which give access via semi-circular arched screens to offices with plaster cornices.
HISTORY: The world's first purpose-built radio factory. This building also housed the laboratory where Marconi carried out his development work.
[W J Baker, "A History of the Marconi Company"1970.]
Listing NGR: TL7089207337
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