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Ambassadors Theatre
First opened in 1913, the Ambassadors Theatre is a historic West End venue renowned for its rich theatrical heritage. It has hosted many landmark productions, notably The Emperor Jones, The Mask of Virtue, and Spring Meeting, and was the original home of The Mousetrap, which premiered in 1952 and ran at the theatre for 21 years before transferring to St Martin’s Theatre.
PROJECT: Structural Repairs & Lounge 2025
Client: ATG Entertainment
Location: London
Principal Contractor: GFH
Project Value: £957,000
The project comprised a programme of structural and building works aimed at supporting the continued operation and preservation of the theatre. Delivered over a 10-week programme commencing, the works included the installation of steelwork and remedial repairs within the auditorium right-hand stage wall, upgrades to the male and female W/Cs with full reinstatement of finishes, making good works and other structural repairs. Main works included the removal and reconstruction of the first-floor sloping wall adjacent to the fly tower in accordance with structural and architectural designs. Further to this a new Ambassador lounge was created for improved customer experience.
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CN Projects was appointed to provide Health & Safety consultancy services, including undertaking Principal Designer duties under the CDM Regulations, carrying out multiple site audits, and delivering appraisals with clear recommendations to support compliance and best practice throughout the works.
PROJECT: Fire Door Compliance Works
Client: ATG Entertainment
Location: London
Principal Contractor: Red Dot
Project Value: £140,000
The project comprised new installation, replacement, and remedial works to approximately 50 fire doors at the Ambassadors Theatre, undertaken to enhance fire safety performance and achieve compliance with current fire safety standards. The construction phase was completed over a 7-week programme.
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A key challenge of the project was delivering the works within a live theatre environment, where the venue remained fully operational and subject to a demanding show programme. Works were therefore carefully phased and coordinated around rehearsals and performances, with strict controls implemented to manage noise, access, and safety. This approach ensured minimal disruption to theatre operations while maintaining high standards of health, safety, and quality throughout the works.
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CN Projects appointed as Health & Safety Advisor and Project Manager to the client for the duration of the project. The project was successfully delivered on time and on budget
