Finished Basement - Sample Drawings - Building Division Building Permit Application Guide

Oct 24, 2026

Sample drawings for a finished basement building permit application, detailing what drawing elements must be included and shown for both existing and proposed basement floor plans. Specifies required room and space labeling, partition walls, door and window sizes, glass area rules, dimensions and areas, and finished ceiling heights. Covers structural requirements such as load-bearing walls, beams, columns, and joist/beam span direction, plus HVAC, plumbing, and electrical components including HRV, furnaces, rough-ins, stacks, panels, and required notes and legend.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages2

Reading Time5 min

AccessFree to download

Existing Basement Floor Plan (Sheet B-1)

Required drawing inclusions: rooms, structural, HVAC, plumbing, electrical, notes

Proposed Basement Floor Plan (Sheet B-2)

Required drawing inclusions: rooms, structural, HVAC, plumbing, electrical, notes

| 3" 24' -11 1/2" 3"
| | | | | | | | | | | | | | | | | | | SAMPLE DRAWINGS BUILDING
DIVISION BUILDING PERMIT APPLICATION GUIDE: FINISHED BASEMENT DRAWING NAME:
EXISTING BASEMENT
FLOOR PLAN NUMBER OF COPIES REQUIRED:
2 DRAWING MUST INCLUDE/SHOW (IF APPLICABLE): ROOMS & SPACES:
-NAME/LABEL
-PARTITION WALLS
-DOOR SIZES (W x H)
-WINDOW SIZES (W x H) AND GLASS AREA
-DIMENSIONS AND AREAS
STRUCTURAL:
-LOAD BEARING WALLS
-BEAMS (WOOD OR STEEL)
-COLUMNS
-JOIST SIZE, SPACING, AND SPAN DIRECTION
HVAC:
-FURNACE, WATER HEATER, AND HRV
-SUPPLY AND RETURN TRUNKS
-SUPPLY AIR OUTLETS AND RETURN AIR INTAKES
-EXHAUST FANS
PLUMBING:
-BATHROOM ROUGH-IN
-PLUMBING STACKS
-PLUMBING FIXTURES
-EXTERIOR HOSE BIBS AND DRAIN/SHUTOFFS
-WATER METER AND MAIN WATER SHUTOFF
-SUMP PUMP
ELECTRICAL:
-ELECTRICAL PANEL
-SMOKE ALARMS
-CARBON MONOXIDE ALARMS
GENERAL/OTHER NOTES:
-EXTERIOR INSULATION
-WALL/CEILING CONSTRUCTION
-LEGEND OF SYMBOLS USED DESIGNER: JOE SMITH PROJECT 123 MAIN STREET ADDRESS: MILTON, ONTARIO SHEET SIZE: 11" X 17" SHEET NO.
B-1 DATE: JUNE 2018 SCALE: AS INDICATED
| | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 3" 21' -10" 3"

| 30"x24" SLIDER GLASS 3. 0SF
SUMP | | | | 2" Ø PLUMBING STACK
| | | EXTENT OF LANDING ABOVE (LOWER CEILING HEIGHT) | | | | | | | | | | | | | | 9½" TJI FLOOR JOISTS @ 16" o/c | | | | | | UNFINISHED
BASEMENT 738.7 SF
30"x12" SLIDER GLASS 1.5 SF | | 2-2"x8"WD. BEAM
4-2"x6" WD.

COLUMN

3" Ø . STL.
COLUMN
UP 12R
SA
30"x8" RETURN AIR TRUNK | |
UNEXCAVATED
| | | | | | | | | | | DROPPED 8" STL. BEAM | | | 3" Ø . STL.
COLUMN | | | | | | | 3" Ø PLUMBING | | | GARAGE HOSE BIB | 9½" TJI FLOOR JOISTS @ 16" o/c | | BUILDER 3-PC ROUGH-IN | | | | | | | | | | | | | | |
STACK
| | | | | | | | | | | 18"x6" SUPPLY AIR TRUNK | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | UTIL SINK | | | | | | | | | | | 30"x 12" SLIDER GLASS 1.5 SF | | 9½" TJI FLOOR JOISTS @ 16" o/c | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ~~ ~~ CEILING RETURN FD

24"x8" RETURN AIR TRUNK
| | | | | | | | | | | HOSE BIB

30"x 12" SLIDER GLASS 1.5 SF | | | | | | | | | | | | | | | |
WATER METER W/ MAIN SHUTOFF | | | | | | | BUILDER'S FULL HEIGHT R-12 FOUNDATION BLANKET AROUND PERIMETER (TYP.) | | | | | | | | HRV | FURNACE
HWHEATER
UNEXCAVATED | | | | | | | | | |
ELEC. PANEL
3" 30' -5" 3" 14' -7" 3"

| | | | | | | | | | | | | | | | | | | | 1 EXISTING BASEMENT FLOOR PLAN B-1 1/4" = 1'-0"

| | | | | | | | | | | | LEGEND
EXISTING CONSTRUCTION (BLACK) DUCTWORK
LOW CEILING/BULKHEAD
SA INTERCONNECTED SMOKE ALARM | | | | | | BEAM
FD FLOOR DRAIN
4"x10" SUPPLY OUTLET (CEILING MOUNTED)
RETURN AIR INTAKE | | | WALL/CEILING SCHEDULE

-R12 FOUNDATION BLANKET BATT INSULATION C/W 6 MIL POLY VAPOUR BARRIER | | | | | W2
EXT. STUD INSULATED WALL (TYP.)
-EXISTING 9" FDN WALL
-2"x6"@16" o/c WOOD STUDS WITH
6 MIL POLY UNDER BOTTOM PLATE
-R12 BATT INSULATION
-6 MIL POLY VAPOUR BARRIER
- ½" GYPSUM
| | | | | W3
INT. PARTITION WALL (TYP.)
-2"x4" OR 2"x6" @16" o/c WOOD STUDS WITH 6 MIL POLY UNDER BOTTOM PLATE
- ½" GYPSUM
| | | | | | | | | | | 4" 2' -4" 4" 7' -9 3/4" 4 1/2" 4' -4 3/4" 4 1/2" 9' -0" 6"
| | | | | | | | SAMPLE DRAWINGS BUILDING
DIVISION BUILDING PERMIT APPLICATION GUIDE: FINISHED BASEMENT DRAWING NAME:
PROPOSED BASEMENT
FLOOR PLAN NUMBER OF COPIES REQUIRED:
2 DRAWING MUST INCLUDE/SHOW (IF APPLICABLE): ROOMS & SPACES:
-NAME/LAB

FAQs

What rooms and spaces information must the drawings show for the finished basement permit?

The drawings must include name/labels, partition walls, door sizes (W x H), window sizes (W x H) and glass area, plus dimensions and areas. They also require finished ceiling height and ceiling height under beams, ducts, and bulkheads (where applicable).

Which structural items are required on both existing and proposed basement floor plans?

Required structural items include load-bearing walls, beams (wood or steel), columns, and joist size, spacing, and span direction. Columns and beam types must be shown where relevant.

What HVAC, plumbing, and electrical components are listed as must-include items?

HVAC includes furnace, water heater, and HRV; supply/return trunks; supply air outlets and return air intakes; and exhaust fans. Plumbing includes bathroom rough-in, plumbing stacks, fixtures, exterior hose bibs and drain/shutoffs, water meter and main shutoff, and sump pump. Electrical includes the electrical panel, smoke alarms, and carbon monoxide alarms.

Oct 24, 2026

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