Residential Building Plans
Site Plan Requirements for Residential Building
Foundation/first floor framing plan with:
- Specific wall footing width and depth of pour.
- Detailed foundation wall size and construction type.
- Wall construction size and type of construction.
- Floor slab details.
- Pier and footing sizes with dimensions for their location and spacing.
- Girder sizes and locations, floor joist direction, bearing, size, spacing and species.
- Foundation vent calculations, and foundation access door size and location.
- Anchor bolts are required at all foundations and must be shown on plan.
Floor plans with:
- Location and size of walls, windows, doors and stairs.
- Beams and headers, with supports and attachments.
- Ceiling plan with ceiling joist directions, bearing, size, spacing and species.
Roof framing showing:
- Direction, bearing, size, spacing and species of rafters as well as special ridges or support for vaults, cathedral areas and valleys.
- Roof vent calculations and roof coverings.
- Truss layouts are required when manufactured roof trusses are to be used except for the simplest roof designs.
Miscellaneous information:
- Insulation values for floors, walls and ceilings for conditioned spaces.
- Attic access, elevations, and calculated areas for finished floor spaces and garage.
- Fenestration calculations are required and must be provided on all plans with conditioned spaces. Structures with more than 15% fenestration must show method of energy compliance per North Carolina Energy Conservation Code Chapter 4.
- Mean roof height or assumed mean roof height must be stated. Design values for cladding must be provided based upon mean roof height.