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One Birdcage Walk

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Venue Type

Historic Venue

City

London

Region

Central London

Standing

300

theatre

200

dinner

180

bedrooms

About

One Birdcage Walk

Located in Westminster, overlooking St James’s Park and just moments from Big Ben, One Birdcage Walk is a Grade II listed venue combining historic architecture with a broad range of flexible event spaces. Home to the Institution of Mechanical Engineers, it offers a more traditional, prestigious setting for conferences, corporate events and private dining.

The venue is set across multiple floors, with a strong mix of large-scale rooms and smaller breakout spaces. At its core are a number of impressive, character-led rooms with high ceilings and period detailing, supported by a tiered lecture theatre and a series of meeting rooms that allow events to run multiple formats within one location.

Catering is delivered in-house, with menus designed to support both formal dining and high-volume conference service. The venue is particularly well suited to structured corporate events where clarity of layout, guest flow and operational delivery are key.

Event Spaces

Main Hall Capacity: Up to 300 standing / 200 theatre / 180 dinner Best for: Conferences, receptions, gala dinners Features: High ceilings, traditional detailing and flexible layout

Lecture Theatre Capacity: Up to 120 theatre Best for: Presentations, talks, panel discussions Features: Tiered seating with integrated AV

Council Room & First Floor Rooms Capacity: Varies Best for: Meetings, private dining, breakout sessions Features: Period rooms with natural light and views over the park

Additional Meeting Rooms Capacity: Varies Best for: Workshops, breakout sessions Features: Multiple rooms supporting multi-stream events

Facilities and Services

Ideal For

Key Features

Grade II listed building in Westminster
Capacity for up to 300 guests standing
Tiered lecture theatre for presentations and conferences
Multiple event rooms and breakout spaces across several floors
In-house catering and experienced event team
Overlooking St James’s Park with central London positioning
Suitable for conferences, dinners, receptions and award events

Grade II listed building in Westminster

Capacity for up to 300 guests standing

Tiered lecture theatre for presentations and conferences

Multiple event rooms and breakout spaces across several floors

In-house catering and experienced event team

Overlooking St James’s Park with central London positioning

Suitable for conferences, dinners, receptions and award events

Why Hire

One Birdcage Walk is built for events that need to feel established and well put together. The combination of traditional architecture, a strong range of spaces and a central Westminster location makes it particularly effective for conferences, corporate dining and formal events. It offers a level of presence and credibility that more modern venues often lack, while still delivering the flexibility required for multi-format events.