An event is a project with a deadline that cannot move. If the venue is wrong for the guest count, the dietary list arrives two days out or nobody knows who signs off the stage design, the date still arrives. An event brief gets the fixed facts and the open decisions on one page early, so the planner can book the right venue, brief vendors accurately and spend the budget on what the client actually cares about.
This brief is for event planners running corporate events, conferences, launches, workshops, private celebrations and community events. Wedding planners can use it too, though a dedicated wedding questionnaire usually covers family dynamics better.
TL;DR
The event brief template captures the event's objective, audience and guest count, date and venue requirements, total budget with contingency, a high-level program, decision-makers per area, vendor needs, accessibility and dietary requirements, risks and contingencies, and post-event success measures. Complete it before contacting any venue. The key practice is naming one decision-maker per area, because events stall when two stakeholders both think they approve the same thing.
What's inside
- Event overview — name, type, date options, organizer and the reason the event exists.
- Objectives and success measures — what the event must achieve and how it will be judged.
- Audience — who attends, guest count range and what they expect.
- Venue requirements — capacity, layout, location, accessibility, technical needs.
- Budget — total, what it covers, what it excludes, and contingency.
- Program outline — the main segments in order, as a draft run of show.
- Decision-makers — who approves budget, guest list, program, brand and vendors.
- Vendors — catering, AV, decor, photography, transport, security and more.
- Guest needs — accessibility, dietary requirements, travel and accommodation.
- Risks and contingencies — weather, no-shows, speaker cancellation, overruns.
When to use it
Use the event brief at the start of any event project, before venue visits and vendor quotes. It follows the client's yes on your event planning proposal and feeds the event planning contract with confirmed scope.
The general creative brief covers creative assets such as invitations or stage graphics, but not venues, guest counts, vendors, logistics or risk. Use this brief for the event as a whole, and a creative brief for any branded materials inside it. To plan the first planning meeting with the client team, pair it with a project kickoff agenda.
The details that change an event plan
Guest count as a range. Ask for minimum, expected and maximum. Venues, catering and seating are priced on numbers, and the gap between 120 and 180 guests can change the venue entirely.
What the budget covers. Clarify whether the budget includes venue, catering, AV, decor, staff, travel, accommodation, gifts and your fee. Clients often quote a number that excludes half of these.
Accessibility from the start. Step-free access, accessible restrooms, hearing loops, captioning, quiet rooms and seating for wheelchair users all affect venue choice. They are much harder to add once a venue is booked.
Dietary requirements early. Collect them with registration rather than a week before. Caterers need numbers for each requirement, not just a note that "some guests are vegetarian".
Contingencies written down. Outdoor events need a weather plan with a decision time. Conferences need a plan for a speaker who cancels. Note who makes each call and by when.
Customize it in your COLO workspace
Set up the event as a project in COLO and turn each vendor booking, deadline and decision into a task with an owner, priority and status. Keep the brief, floor plans and vendor quotes in the project files, and share the tasks the client needs to see in the client portal.
Use project chat for decisions with the client team, and record vendor deposits and other costs as expenses linked to the project, so spending against the event budget stays visible.
Common mistakes
- A single guest number. Without a range, the venue is either too small or too empty.
- Budget without inclusions. A total with no breakdown leads to arguments about what was covered.
- Accessibility as an afterthought. It narrows venue choice, so ask before shortlisting.
- No contingency line. Unplanned costs come out of the details the client cared about most.
- Many approvers. Each area needs one person who decides.
FAQ
Q: What should an event brief include?
The event type and objective, the audience and guest count, date and venue requirements, the total budget and what it covers, a high-level run of show, decision-makers, vendor needs, accessibility and dietary requirements, risks and contingencies, and how success will be measured.
Q: When should an event brief be written?
Before venue searching or vendor quotes. The brief sets guest count, budget and requirements, which decide which venues and vendors are even worth contacting. It should be updated as decisions are made.
Q: How is an event brief different from a run of show?
The brief explains why the event exists and what it needs. The run of show is the minute-by-minute schedule used on the day. The brief includes a draft outline that later grows into the full run of show.
Q: Should the event budget include a contingency?
Many planners hold back around 10 to 15% of the total budget as contingency for last-minute changes, extra guests or vendor issues. Show it as its own line so it is not spent on upgrades early.
Q: Who approves decisions in an event project?
Name one decision-maker for each area, such as budget, guest list, program and brand. Events often stall when several stakeholders believe they have final say over the same choice.