Where regulated work actually happens
Most explanations of GxP are organised by rule. This one is organised by place. It is a reference site in 23 zones — a gatehouse, a warehouse, a filling line, a microbiology lab, a water loop, a document office — and for each one it answers the same six questions: what happens here, why it is regulated at all, which functions are accountable, which systems hold the records, what evidence it produces, and the risk and control that explain the regulation.
This is a synthetic teaching model, not a drawing of any real site, and nothing here states that a zone is compliant, qualified or inspection-ready — those are findings about a specific organisation, which a reference cannot make.
Legend
Every colour, line, symbol and status used anywhere in this model.
Colour never carries a compliance claim. A green fill means the zone belongs to the manufacturing group; it says nothing about whether that zone is qualified, validated or inspection-ready. Assurance, readiness and authority are stated in words and badges only.
How to read the plan
The zones are grouped six ways, and the grouping is the first thing worth understanding — it is roughly how a site is actually organised. Site & material flow — where people and materials cross the site boundary, and where goods wait for a disposition decision. Production — the graded envelope where product is made, filled and packed. Laboratories — where samples are tested and the data that releases a batch is generated. Utilities & engineering — the systems that make the graded envelope possible, and the people who keep them qualified. Quality & records — independent oversight, the controlled record set, and the regulatory interface. EHS & environment — worker and environmental protection, and the disposal path for what leaves site.
The overlays are the second. A regulated site is not really a set of rooms; it is a set of routes through those rooms, and most GxP rules exist to keep those routes from crossing where they should not. Material flow, People & controlled access, Utilities & facility systems, Data & evidence flow, Proposed future links each trace one of them. The proposed overlay is drawn dashed and labelled as proposed, because it describes capability that is not implemented rather than how a site works today.
Selecting a zone puts it in the URL, so a particular room with a particular overlay showing is a link you can send to someone. The zone list carries everything the drawing does, in text, and is what keyboard and screen-reader users operate — the plan is an illustration of the list, not the other way round.
Looking for something else? If your question is “is my proposed layout compliant” rather than “where does regulated work happen”, that is a different job — see the tools catalog. If you want the systems that hold these records in their own right, start at systems & technology.