Rule of thumbMandatory
Room size hierarchy
LAY-HIERARCHY-01Description
Higher-priority rooms should never be smaller than lower-priority ones: kitchen ≥ mudroom, primary bedroom ≥ secondary bedroom, living room ≥ secondary bedroom.
Why this exists
Living + family + primary bedroom should be larger than secondary bedrooms; secondary bedrooms larger than mudroom + powder. Hierarchy violations read as 'something's off' to every visitor.
Categories
AestheticBedroom
Source
Industry consensusno manifest entry
Architectural Graphic Standards (12th Edition)
Section: Residential layout
Published 2026-05-09 · last verified 2026-05-09
Solver enforcement
The constraint solver runs check function lay-hierarchy-01 as a hard constraint — layouts that fail are rejected outright.
Related directives
- Living room minimum size · LIVING-ROOM-SIZE
- Family room minimum size · FAMILY-ROOM-SIZE
- Dining room sizing · DINING-ROOM-SIZE
- Primary bedroom minimum size · MASTER-BEDROOM-SIZE
- Secondary bedroom minimum size · SECONDARY-BEDROOM-SIZE
Last reviewed 2026-05-09.