BIM

The Building Width Calculator inverts conventional office planning by deriving building width from actual furniture dimensions — desk, exam table, lab bench, courtroom bench — rather than fitting tenants into a predetermined structural grid.

Business Office key plan specifications within the Professional Office classification, distinguished by the widest Zone 2 Magazine depth of any sub-type at 9.26 m, driven by open storage walls, server rooms, and team collaboration zones, in three sizes from 311 to 669 m².

A geometric self-similar aperiodic space-planning system sizing floor plates from actual furniture inventory through Key Plans, Tiles, and Building Core assemblies — all dimensions traceable to real furniture SKUs, every climate zone matching exactly one Tile.

The named sample Tile compositions from the V12 Methodology — four configurations documenting the trade-offs each makes across tenant mix, climate-zone autonomy, leasing gap positions, and demising tolerance.

Master directory of 72 key plans across nine Development Classes, pairing Development Class with Typology and Eco Region to produce the file-name slugs referenced across downstream BIM artefacts, DTCG tokens, IFC entity classifications, and regulation overlays.

Quantitative case for the aperiodic tile system: irregular Private Office widths produce 1.78 times more distinct leasable configurations than a uniform modular grid at 95 percent of the area, with 78 percent of the door and service hookup count.

Medical Office key plan specifications within the Professional Office classification, distinguished by the widest Zone 1 Habitat depth at 7.28 m to accommodate exam-table clearance and dual patient-clinician circulation, in three sizes from 223 to 486 m².

Private Office key plan specifications — three suite sizes (30, 43, and 64 m²) opening directly onto the shared building corridor without an internal bilateral corridor, sized for individual professional tenants rather than firms.

The Professional Office superordinate category covering five sub-types — Business, Medical, Laboratory, Academic, and Civic — with the Initial Design baseline zone dimensions that preceded sub-type specialisation.

Tiles are the composable HVAC-climate-zone units of the floor plate: three regular families at 2,700 SF, 5,400 SF, and 8,100 SF plus Special Tiles that handle building cores and ancillary areas, assembling to fill Net Leasable Area without remainder.

Canonical Zone 1 Habitat, Zone 2 Magazine, and Zone 3 Corridor per-side depths for seven Professional Office use types from Private Office to Business, with derived building widths and source citations to V12 sketches and methodology documents.