How you divide a house into areas determines how many decisions your client makes, how your handover document reads, what your supplier sees on a purchase order, and several things that are difficult to unpick later. Work through this before you build your templates, because most of it is expensive to change afterwards.
Model A: room by room
Areas are Bed 1, Bed 2, Bed 3, Bed 4, Main Bathroom, Ensuite, Powder Room, Kitchen, Living, Laundry, Alfresco. Area types are Bedroom, Bathroom, Kitchen, Living, Laundry, Alfresco.
Your client's portal reads like a walk through their house, which is how homeowners actually think about a build. Every choice is anchored to a physical place, so the record is unambiguous and the signoff report reads as a room by room schedule that makes sense at handover. Locking also works per area, so if you sign off and order the bathrooms while the kitchen is still open, this is the only model that lets you do it cleanly.
What it costs. Four bedrooms with four bedroom decisions is sixteen decisions, so if the answer is the same carpet in all four, your client has answered the same question four times.
Best for custom builders, high-end work, staged handovers, and anyone whose clients genuinely do specify different finishes room to room. If they do not, you are paying all of the above for a record that could have been simpler.
Model B: by zone
Areas are Interior, Wet Areas, Kitchen, Exterior. Area types match.
Decision volume collapses, because your client makes each choice once and it applies across the whole zone. Setup is faster, templates are smaller, and a client finishes in one sitting rather than three. With only four areas the sidebar trips almost disappear too, so the whole process feels like one continuous run rather than a series of rooms.
What it costs is specificity, in two places that matter. There is no way for a client to choose a different tile in the ensuite than in the main bathroom without splitting the area, and the signoff report reads as a zone schedule rather than a room schedule. You also lose progressive locking, since locking works per area and four broad areas give you almost no granularity.
Best for volume builders, fixed-price contracts, and house ranges where the specification is standard and the variation sits at the upgrade level rather than the room level.
Model C: by selection category
Areas are Stone, Tiling, Flooring, Tapware, Electrical. Area types match.
This collapses the place dimension entirely and organises your client's experience by trade or supplier instead. It suits builders whose selections process genuinely runs through supplier appointments, because a client goes to the stone supplier once and answers everything stone in one visit, and it maps neatly onto purchase orders since the grouping already matches the supplier split.
What it costs is more than it looks. Your client can no longer answer "what did we pick for Bed 2" from the portal, and the signoff report ends up with one section named after a single area, so the area heading becomes decoration and the document reads as a flat list.
Best for builders who run selections through supplier showroom appointments, and for renovation work defined by trade packages rather than rooms. Treat it as a process that works well during selections and less well as a permanent record.
The comparison
Taking the dimensions that actually differ, one at a time.
How many decisions your client makes. Highest room by room, lowest by zone, and low by category.
What the portal feels like to a homeowner. Walking through their house, moving through zones of the build, or working through supplier appointments.
Room detail on the signoff report. Full room by room. Lost under both of the others.
Locking areas progressively as they are signed off. Per room, which is the finest control available. Per zone gives you very little. By category it is not meaningful.
Setup and template effort. Highest room by room, lowest by zone, medium by category.
Most good setups use a hybrid
The pattern that tends to work for most builders is room by room for the areas where clients genuinely care and genuinely vary, and one broader area for everything standard. For most residential builders that means separate areas for the kitchen, each bathroom and the main living space, plus a single Bedrooms area covering all the bedrooms together and a single Exterior. Your client gets a short, meaningful set of decisions, the rooms that matter stay properly separated, and you avoid asking them the same carpet question four times.
The structure also does not have to be identical on every job. If a client wants different carpet in the guest room, add a separate area for it on that job, because the template gives you the default rather than the rule.
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