Drawing a building plan that firefighters can use

An architect's drawing and a firefighter's plan look similar and serve almost opposite purposes. The architect's drawing is read at leisure, by someone fluent in its conventions, to build the thing. The firefighter's plan is read in seconds, possibly in smoke, by someone who has never been inside, to decide where to go. A plan that is technically perfect by architectural standards can be close to useless at the door of a burning building if it was not drawn with that reader in mind. Drawing a plan firefighters can actually use is a distinct skill, and the regulations now make it a requirement rather than a courtesy.

What the law expects to exist

The Fire Safety (England) Regulations 2022, in force 23 January 2023, require responsible persons of high-rise residential buildings to share floor and building plans electronically with the local fire and rescue service, and to keep hard-copy floor plans together with a single-page orientation plan and responsible person contact details in a secure information box for firefighters. So the plan is not optional, and it is not abstract. It is a physical document that will be pulled out of a box and read by a crew under pressure. That reader, and that moment, should govern every decision about how the plan is drawn.

Draw for the reader, not the file

The firefighter reading your plan wants to answer a few urgent questions fast: where am I, how do I get in and move through, where are the stairs and the firefighting lift, where is the water, and what hazards should I expect. A plan optimised for that reader strips away what an architect needs and emphasises what a firefighter needs.

The things that earn their place:

• Orientation that matches arrival. North, the approach, and the entrance shown so the crew can align the plan with what they see.
• Access and circulation. Entry points, corridors, stairs, the firefighting lift and refuges, clearly distinguished from ordinary lifts and dead ends.
• Firefighting provisions. Dry or wet risers, hydrants, sprinkler controls, and the locations that matter for getting water to a fire.
• Compartmentation and key hazards. Fire-resisting walls and doors, and anything unusual, such as stored gas, that changes how the building should be approached.
• A consistent, legible key. Symbols a stranger can interpret without a legend they have to study.

Legibility is a safety feature

A plan that is accurate but hard to read fails at the only job that counts. Under stress, detail becomes noise. A drawing crowded with dimensions, furniture, services and annotation forces the reader to filter, and filtering takes time the reader does not have. The discipline is subtraction: include what helps the decision and leave out what does not. A clean plan with strong contrast, a clear hierarchy and a simple key will be read correctly in conditions where a busy one will be misread or abandoned.

This is also why the single-page orientation plan exists as a separate document. It answers the very first question, where am I in relation to the building, before the detailed floor plans are even consulted. We give that document its own treatment in the single-page orientation plan, and why it matters.

The plan has to be true on the day, not the day it was drawn

A beautiful plan that no longer matches the building is a hazard, because it will be trusted. A door shown where a wall now stands, a stair that has been reconfigured, a riser that has moved: each of these can send a crew the wrong way at the worst time. So the most important property of a firefighter's plan, after legibility, is currency. The plan in the secure information box has to reflect the building as it stands, which means it has to be updated whenever the building changes, not merely when someone remembers. Keeping the drawing inside the compliance record, where building changes are logged, is what makes that currency sustainable, as we argue in why floor plans belong in your compliance system, not a drawer.

Test it the way it will be used

The honest test of a firefighter's plan is not whether it looks right to you, who knows the building. It is whether someone who has never been inside can use it to orient themselves and find the stairs, the lift and the risers without help. If a colleague unfamiliar with the building can do that from the plan in under a minute, it works. If they hesitate, the places they hesitate are the places a crew would hesitate, and those are the places to redraw. Designing for the unfamiliar reader is the whole task.

A quiet document that does loud work

A firefighter's plan spends almost all of its life in a box, unread. Its entire value is realised in the rare minutes when a crew arrives at a building they do not know and needs to understand it immediately. Drawing it for that moment, keeping it legible, and keeping it true to the building as it changes is the difference between a document that helps and one that misleads. None of this is glamorous, and all of it matters precisely when everything else has already gone wrong.

SAMRISK is built so that building and orientation plans live inside the compliance record, stay current as the building changes, and can be produced and shared in the formats the regulations require. You can see how plans are held on the building plans page, and how they connect to the wider record on the compliance calendar page. Draw the plan for the person at the door, and keep it true.