Complete set of plans: Plans shall show specifically what is being built.
A complete set of plans consists of:
▪ Plot plan shall show dimensions of the building site, street names, placement of all
structures, distances to other buildings and/or property lines, contours of the property if
more than 2’ of slope, and if utilizing a STEP/STEF tank show the placement location.
▪ Foundation plan shall show code prescriptive lateral requirements or engineering
design. The plan shall also show dimensions, anchor bolts, bearing pads and vents. If
using a wood floor, show joists, girders, and posts and specify all required connectors
and hangers. Indicate interior bearing points and walls. Details shall be provided to
adequately show construction per code or engineering.
▪ Basement and retaining wall details shall note and show code requirements.
Engineer’s calculations shall be provided for retaining walls. Foundation details
excepted by jurisdiction may be used.
▪ Floor plan label use of each room; show dimensions, window sizes, smoke detectors,
carbon monoxide detectors, appliance locations, furnaces, water heaters, crawl space
access, ventilation fans, plumbing fixtures, decks, balconies and code prescriptive
▪ Wall bracing for code prescriptive lateral or engineered design shall be provided on
plans, shown on full size sheets, indication details and locations, load path
connections. Engineered design shall also provide 1 set of calculations and
specifications. For prescriptive design, provide appropriate code sections to identify
▪ Floor framing plan shall be included on plans and identify framing components used.
Show all headers and
beams. If
using manu
factured floor system, pro
vide 2 copies of
the manufacturer’s layout and specifications.
▪ Roof framing plan shall be included on plans and identify framing components used.
Show all sized beams and headers required. Identify ventilation requirement and how
it is being provided. Include interior bearing points or walls. If using engineered
trusses, show trusses on roof framing plan and provide 2 copies of the manufacturer’s
load including vertical uplift.
▪ Cross-Section and details provide at least 2 full cross- sections (in different
directions) through entire building showing framing members, sizes, spacing, headers,
joists, sub-flooring, wall construction components and roof components. Indicate
where the required radon vent will be installed. Indicate location of cross-section on
floor plan (details of walls, floors, roofs, stairs, fireplaces and foundations shall be on
plans).
▪ Elevations provide all proposed exterior elevations. Elevations shall show actual
finish grade (if greater than 2’ grade change). Show steps in foundation walls and
retaining walls. Provide drainage plan when required.
▪ Energy Code provide 1 completed copy of the Washington State Energy Code
Prescriptive Worksheet. Identify U-Factors for Doors and Windows, R-Values for
floors, walls and ceilings on plans.
▪ Erosion Control Measures are required to prevent sediment from leaving the site onto
the street and or entering inlets during construction.
▪ SWPPP Abbreviated construction stormwater pollution prevention plan.