Project Guidelines
Deck Permit |
Detached Garage
Deck Permit Guidelines
Completed Building Permit Application Including (2) Sets of
Drawings
Submit a Mortgage Survey Showing Location of Deck, Accessory
Structures, Easements and Location of Gas and Electrical Meters
Submitted Blueprint/Drawing of Deck must include the following
Information:
- All measurements pertaining to size of Deck
- Post Hole locations and On Center Spacing, Minimum Footing
- Depth of 42" and sized to support the Deck Load as required
- Beam sizes, Species, Joist Sizes, Species, On Center Spacing
and Locations, Decking Material being used, and Type of Ground
Cover if necessary
- Elevation from the top of the Deck Measured to Grade Level
A Guard Rail is required for all Decks that are elevated 30" or
more above Grade Level. Balusters must be installed vertically.
Minimum Guard Rail height of 36" with a maximum of 4" spacing
between Balusters - Provide Details
Provide a Stair Detail showing Rise and Run of Stringers, Hand
Rail Detail
If the Deck is attached to the home you must provide a Flashing
Detail and the Method of Attachment to the Home
A Post Hole, Rough Frame and a Final Inspection are Required
All Decks must be in compliance with the City of Northville
Zoning Ordinance, Section 18.11 10, Decks
All Decks within the Historic District Boundaries must have the
Approval of the Historic District Commission prior to the issuance
of a Building Permit
 Requirements for Detached Frame Garages
Zoning Ordinance Requirements: The following requirements
apply to R1A and R1B (single family) districts.
| Minimum Distance: |
from rear and side lot lines shall
be five (5) feet. |
| Minimum Space: |
between garage and house of ten
(10) feet. |
| Maximum Size: |
one story or fourteen (14) feet in
height, area can not exceed 25% of the required rear yard plus
40% of the non-required rear yard, and may not exceed the ground
floor area of the main building or 10% of the total lot area,
whichever is less. |
| Historic District: |
garages as well as all other
additions or exterior architectural changes on lots within the
Historic District must be approved by the Historic District
Commission prior to a permit being issued. |
| Preparing Site: |
Remove all sod. Fill material and
forms must be in place and ready for pour for the first
inspection. |
| Inspections: |
1. Open trench and floor form
before pouring. 2. Final |
| Floors: |
4" minimum |
| Concrete: |
2500# concrete-5 bag minimum-5
gallons of water per bag. |
| Bolts: |
8" long x ½" diameter-2" above
concrete, 8’ apart. |
| Expansion Strip: |
beneath bottom plate. |
| Framing: |
16" O.C. |
| Wall Plates: |
Top doubled, bottom single. |
| Siding: |
Wood or other material approved by
the Building Department. |
| Wind Bracing: |
Each corner, both ways 1’ x 6" let
into studs at 45°. |
| Door & Window Headers: |
| SPAN |
NON-
BEARING |
BEARING |
| 8’ |
2-2" x 6" |
2-2" x 8" |
| 9’ |
2-2" x 8" |
2-2" x 10" |
| 16’, 17’, 18’
|
2-2" x 12" |
2-2" x 12" + ¼
steel plate |
|
| |
Use 3/8" bolts each 2’ staggered
top and bottom of 2" x 12" in bearing wall or laminated beam. |
| Roof: |
Trusses or rafters. |
| Rafters: |
Up to 13’ wide (2" x 6"). Over 14’
to 17’ (2" x 8"). Longer, check with the Building Department. |
| Cross Ties: |
(4) 2" X 4" TO 14’ wide. Over 14’
width 2" x 6" with one additional tie in opposite direction. 1"
x 6" hanger. |
| Ridge Board: |
2" full rafter bearing. |
| Collar Ties: |
1" x 6", 4" center. |
| Corner Studs: |
Standard 2 stud corner with
blocking. |
| Roofing Boards: |
1" boards or ½" approved plywood.
Particleboard must use clips. |
| Shingles: |
#210 per 100 square feet or better. |
| Shingle Nailing: |
Manufacturers specifications-NO
STAPLES. |
| Nailing: |
(general) 6" boards - 2 nails. Over
6" – 3 nails. |
| Distance From Lot Line: |
Side-5 feet, Rear-5 feet, Side
Street |
| Distance From Any Building: |
10 feet. |
| Sheathing: |
Brick Veneer or Aluminum Siding:
Plywood 5/16" Gypsum ½"
Fiberboard ½" Particleboard 3/8". |
| Foundation: |
Wood frame – Ratwall 6" x 30" below
ground level-attached, brick veneer, solid masonry and steel –
Foundation 8" x 42" below existing ground level. |
This page last updated:
July 24, 2008
©2008, City of Northville
City of Northville
215 W. Main St.
Northville, Michigan 48167
248-349-1300
Hours: Monday - Friday, 8:00am - 4:30pm
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