King's Theatre

The restoration of Edinburgh’s historic King’s Theatre combines carefully integrated modern services with the conservation of its rich architectural character, creating a more comfortable, accessible and energy-efficient theatre for audiences and performers.

Ornate auditorium with red seating and decorative balconies.

Key information

Architect

Bennetts Associates

Client

Capital Theatres

Value

£41M

Year of Completion

2026

Location

Edinburgh, Scotland

Sector

Renewing a historic theatre

Built in 1906, the category A-listed King’s Theatre has been a fixture of Edinburgh’s cultural life, but needed significant upgrading to allow it to continue its role in the community. The project extended the theatre’s fly tower by 4.5 metres and introduced upgraded technical and production facilities. Together, these changes increase the range and complexity of touring productions the theatre is able to accommodate. In addition, site-wide access and two new lifts make more of the building accessible to people with limited mobility. The wider redevelopment also introduced new public spaces, improved circulation and upgraded production facilities.

The refurbishment also provided an opportunity to renew the theatre’s technical infrastructure and environmental systems. Electrical capacity was doubled to meet the requirements of modern theatre productions, while life-safety infrastructure was comprehensively upgraded.

We provided MEP engineering and architectural lighting design for the major restoration and technical refurbishment, which celebrates the theatre’s remarkable heritage while introducing the modern infrastructure needed to deliver an exceptional experience for audiences and performers.

Integrating new services within the historic fabric

One of the principal challenges was upgrading the ventilation in the auditorium without adversely affecting its ornate interior. Installing new ductwork required sections of the auditorium to be carefully taken apart, creating routes for services to be incorporated into the existing building fabric. 

We used airflow analysis to develop the auditorium ventilation strategy, with particular attention paid to audience comfort and the theatre’s demanding acoustic environment. Fresh air is delivered through discreet ventilation slots, helping achieve quiet, even air distribution while keeping the engineering visually unobtrusive.

The auditorium is served by a new rooftop air-handling unit incorporating heat recovery, together with a dedicated heat pump providing heating and cooling. This allows improved environmental conditions to be delivered alongside better energy performance.

Lighting

Our architectural lighting design contributes to accessibility and highlights the historic interior. Low-energy LED sources have been introduced where appropriate, reducing energy use and maintenance requirements, while many original light fittings, including the theatre’s chandeliers, have been retained and refurbished rather than replaced. This approach reduces the carbon and cost associated with replacement while maintaining an important part of the building’s character.

A restored theatre for future generations

The completed restoration brings the King’s Theatre up to the environmental, accessibility and technical standards expected of a contemporary performance venue while preserving the qualities that have defined it for generations. Through careful coordination of new and existing elements, the engineering remains largely in the background, allowing the theatre itself to take centre stage.

"I've worked on the King's Theatre restoration from masterplan right through to completion, so I've seen this project end-to-end. This project has benefited from a great team and client, with everyone involved being so committed, and it's really paid off."

A headshot of Steve Kenicer wearing a white shirt

BSc AMInstP
Director, MEP Engineering
Partner