The one-page Event Brief: what to share to get a fast, accurate proposal (and fewer surprises)

At 15Hatfields, the difference between a quick “yes, we have a room” and a decision-ready response is usually one thing: agenda shape. Not just “100 people”, but whether you need a full-team anchor, breakouts, clean re-entry, and a proper finish. When that’s clear, we can respond quickly with what experienced planners actually need: availability, a recommended set-up and flow, what’s included, and any constraints to flag early so the day runs smoothly.

This one-page structure is designed for venue finders, agencies, EAs/PAs and in-house organisers who want to reduce back-and-forth and get to a confident shortlist faster.

What a strong brief gives you in return

A good one-page brief makes it easier for a venue to come back with a response you can use internally straight away, including:

• Availability and hold options (so you know what’s realistic)

• A recommended room set-up and flow based on your agenda shape (not just capacity)

• Clarity on what’s included and what’s optional

• Key assumptions and constraints that could affect delivery (timings, changeovers, access, AV/hybrid requirements)

• Clear next steps so you can progress without another email chain

That’s what keeps planning calm and prevents late surprises.

The one-page brief (what to include)

You don’t need to write more. You need to write the right things.

1) Event snapshot

• Event type: training / workshop / leadership day / conference / reception

• Date(s): include any flexibility

• Delegate numbers: expected range (and whether numbers may move)

• Timings: arrival, start, finish, any hard stop

• Access window: set-up / de-rig / deliveries (if relevant)

• Decision timing: when you’d like a response, and when you expect to confirm

This is what allows a venue to prioritise, sense-check feasibility, and respond at the right pace.

2) Agenda shape (the part that changes everything)

Summarise the mechanics in plain language:

• Full team session: yes/no

• Breakouts: yes/no

• number of groups

• number of rounds

• do groups rotate rooms or stay put?

• Key moments: opening, exercises, panel/Q&A, decision point, wrap

• Working mode: discussion-led / practical skills / decision capture (or mixed)

A space can “fit 100” and still be the wrong choice if your agenda needs multiple breakout rounds, fast handovers, or a strong re-entry.

3) Set-up and flow priorities (how you want the day to feel)

This is where 15Hatfields can recommend a plan that supports behaviour in the room, not just seating.

• Preferred set-up style: theatre / cabaret / classroom / boardroom / mixed

• Flow priority: minimal movement / quick transitions / calm re-entry / breakout depth

• Moments to protect: leadership Q&A, speaker sessions, wrap and actions

• Quiet/reset space: useful for calls, prep, or a breather between sessions (if needed)

• Tone: senior/formal vs collaborative/workshop-led

This is the difference between “a room booking” and “a day that runs well”.

4) AV and hybrid (say it plainly)

• Presenter model: one speaker vs multiple speakers, laptop handovers, panel/Q&A

• Audio: microphones needed (how many and for what moments)

• Hybrid/remote: required / not required

• if required: who is remote (speaker/attendees) and what platform

• Recording: required / not required

• Support expectation: do you want an in-room technician?

If hybrid is even a possibility, it helps to decide early. It affects room choice, kit, and how the day is delivered.

5) Catering rhythm (high-level)

• Breaks: how many, and roughly when

• Lunch: seated / working / quick turnaround

• Dietaries: known now / will confirm by [date]

• Any reception element: yes/no (and the feel: networking vs formal)

You don’t need a menu spec in the first email. You do need the rhythm.

6) Accessibility and inclusion

• Any access needs to plan for (step-free routes, hearing/visual support, quieter space, etc.)

• Anything else to ensure everyone can participate comfortably

7) Budget and approvals (keep it simple)

• Budget range (if you can share it)

• What matters most (flow, AV confidence, service, location, sustainability evidence, etc.)

• Any internal sign-off requirements (documentation needed, reporting requirements, onboarding steps)

At 15Hatfields, if you tell us what stakeholders need to see, we can structure our response so it’s easier to share internally, with inclusions and assumptions clearly set out.

How we respond at 15Hatfields when we have the right inputs

When the brief includes the details above, we can come back with something genuinely usable, not just “yes, we can do it”.

Typically, that includes:

• Availability and hold options

• Recommended set-up and room flow (including how full team and breakouts can work)

• What’s included as standard (so comparisons are cleaner)

• Key assumptions and constraints to flag early

• AV approach and support level based on your run-of-show

• Clear next steps (what we need from you to confirm)

Example: a leadership strategy day brief (filled in)

Here’s what “good” looks like in practice. This level of detail is enough for a venue team to recommend the right rooms and flow first time.

Event type: Leadership strategy day (full team + breakouts)

Date(s): Tuesday 18 June (flexible within that week)

Numbers: 90–100 delegates (final numbers confirmed closer to the date)

Timings: arrival 09:00, start 09:30, finish 16:30 (hard stop 16:45)

Access: set-up from 08:00, de-rig by 18:00

Decision timing: shortlist by end of week

Agenda shape:

• Full team anchor session in the morning

• 2 breakout rounds (8–10 groups)

• Re-entry after each round for priorities/decisions

• Wrap must land actions and owners clearly

Set-up and flow priorities:

• Full team: cabaret preferred (discussion-led)

• Breakouts: table groups + flipchart support

• Flow priority: calm transitions and clean re-entry (avoid drift)

• Quiet/reset space helpful for leadership calls between sessions

AV / hybrid:

• Multiple presenters with laptop handovers

• 2 handheld mics for Q&A

• No hybrid participation

Catering rhythm:

• Arrival coffee, mid-morning break, lunch, mid-afternoon break

• Dietaries confirmed one week prior

Accessibility:

• Step-free access required for attendees

• Quiet space helpful for neurodiversity needs

Budget and approvals:

• Budget range: £XX–£XX (venue + catering + AV support)

• Sign-off needs clarity on inclusions/assumptions and any constraints early

Next step

Send your outline (even if it’s not final) and we’ll come back with a practical room set-up and flow recommendation based on your agenda shape, plus the key information you’ll need to decide.

CTA: Send your brief