How to shape a day that feels effortless and delivers outcomes.
A one-day working session isn’t won by the agenda on paper. It’s won by what happens in the room: whether the day holds attention, whether transitions feel effortless, and whether the venue creates the right conditions for people to think clearly and make progress.
That’s where 15Hatfields comes into its own. We’re not just a set of rooms in central London. We’re set up to support the whole-day experience of a working session: the tone on arrival, the pace through working sessions, the quality of the environment, the confidence of the AV, and the on-the-day team that keeps things running smoothly without it feeling over-managed.
This piece is a practical way to picture how a one-day session can work at 15Hatfields, and what tends to make the difference between a day that’s “fine” and a day that genuinely moves things forward.
For senior teams, venue choice is rarely about capacity alone. The venue becomes part of the working environment, and it affects how people show up.
The strongest one-day sessions typically need:
a main space that sets the right tone and supports high-quality discussion
breakout spaces that feel like proper working rooms, not an afterthought
the ability to shift pace across the day without disruption
AV that’s reliable and confidence-inspiring, especially with multiple contributors
a calm, experienced on-the-day team that keeps delivery smooth behind the scenes
At 15Hatfields, the advantage is flexibility with control: multiple spaces that allow the day to evolve, supported by a team used to delivering strategy days, away days and workshops.
The main room is where the day is framed and where it’s brought back together. It needs to feel purposeful and “ready” from the moment delegates walk in.
Two of the most popular main-room options at 15Hatfields are:
If you’re not sure which direction suits the tone of your day, send us the outline and we’ll recommend the best-fit main room based on your agenda shape and the way you want the day to feel.
Breakouts: smaller-room working that actually works
The breakout phase is where thinking becomes sharper and participation changes. The value is not simply having breakouts. It’s having the right breakout spaces available so groups can work properly and return to the main room without losing momentum.
At 15Hatfields, organisers commonly use a mix of:
The benefit of having this range available is simple: you can design the day around how teams work best, rather than forcing every session into the same environment.
One of the biggest differentiators in one-day sessions is how confident the technical delivery feels. This matters most when there are multiple contributors, laptop handovers, Q&A, or hybrid elements that need to be confirmed early.
15Hatfields has an extensive range of integrated technology and AV infrastructure designed to support clarity in the room and, where needed, a global audience. Explore our full AV capabilities.
If hybrid or video conferencing is part of your plan, speaking to the AV team early helps ensure the right approach is designed in from the start.
Rather than thinking in lots of small time slots, the best one-day sessions are designed in a few clear phases. This is a structure we regularly see work well across strategy days, away days and senior working sessions.
1) Set the tone
At 15Hatfields, this is where the main room choice and set-up matter. The space needs to support participation, not just presentation. Combined with coffee on arrival and a clear start, you set the standard for the rest of the day.
2) Do the work in smaller groups
This is where the building’s flexibility adds real value. With dedicated breakout rooms available, smaller-group work becomes productive working time, not a logistical exercise. Groups can focus, facilitators can run sessions properly, and the day keeps its pace.
3) Bring it back together and land the outcomes
This is where one-day sessions become decisive, or dissolve into “useful conversation”. The strongest days return to the main room with a clear reconvene moment and enough time to land next steps in a way that people can act on afterwards.
A typical one-day working session at 15Hatfields
A common format we see is a full-team session in a main room such as Water or Ozone, two rounds of smaller-group working using a mix of Bio/Eco, Earth and Hydro/Thermal, then a structured reconvene to land decisions and next steps. What makes the day feel polished is that the environment supports each phase, and the delivery is supported calmly behind the scenes.
If you send us the outline for your day (even if it’s not final), we can come back with a practical recommendation, typically covering:
a main room recommendation (for tone, agenda shape and scale)
a breakout plan using the right mix of rooms for how teams will work
AV considerations for your run-of-show (especially with multiple contributors)
any constraints worth flagging early so nothing surprises you later
If you’re planning a one-day working session at 15Hatfields, send us:
delegate numbers and the broad shape of the day
any key moments you need to support (Q&A, multiple contributors, workshop segments)
what the day needs to achieve (alignment, decisions, actions, next steps)
Our team will come back with a practical recommendation for room set-up and how the day could work across the building. Contact our team today
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