A building permit is required anytime there is an addition, alteration,
repair or demolition to the main structure or accessory structure on a lot
The issuance of permits and subsequent inspections of the work performed
ensures that all construction in the city is safe and in compliance with
the City of Longmont Land Development and Building Codes. The primary purpose
of these codes is to ensure a safe and healthy environment for the citizens
Permits are reviewed and issued at the Building Inspection Division office
located at the Development Services Center, 385 Kimbark St. The office is open
from 8:00 AM to 5:00 PM Monday through Friday. Call
(303) 651-8332 for information.
As a homeowner you can act as
your own contractor and do the work without a contractor's license on your
own property where you live. However, if you subcontract a project, electrical
wiring for example, then the subcontractor must be licensed to work in Longmont.
You may as a homeowner be issued a permit for subcontracted work; however,
you are also responsible for inspections and sign-offs on the permit card.
CAUTION: If you do work, or have any work
done without obtaining a permit, you could be incurring liability in the
event of a fire or accident related to the work. In some circumstances,
your insurance could be invalidated.
- NOISE. Section
10.20.100 of the Longmont Municipal Code prohibits making unreasonable
noise which would cause a person of ordinary sensitivities significant
annoyance and irritation.
- CONSTRUCTION DEBRIS & TRASH.
Section 9.04.100 of the Longmont Municipal Code requires debris and
trash be contained on the job site.
- BEFORE DIGGING. ALWAYS call
the Utility Information Center at 1-800-922-1987 to locate underground
utility lines. Allow 3 working days for the lines to be located and
- SMOKE ALARMS.Smoke alarms
are required to be hardwired and interconnected in new and existing
bedrooms, halls and one each level unless removal of interior wall
or ceiling finishes would be required. In this case, battery operated
devices are acceptable.
RETURN TO INDEX
Requests for inspection are recorded on the Building Inspection Selectron
system by calling (303) 774-4595. You will need your permit number and inspection
card. Follow the voice mail prompts. Inspections are usually made on the
following day, it is wise to anticipate when they need to be made to prevent
No inspection will be made on subcontracted work done by an unlicensed subcontractor.
You should not proceed to cover-up any work that has not been inspected.
You SHOULD NOT schedule any concrete or other major work for the same day
as the inspection to avoid costly problems. Inspections must be called in
the day before needed in order to efficiently schedule and route the Field
Please have all animals including dogs under control and not in the areas
to be inspected. Inspections may not be made if there are animals running
loose and a re-inspection fee may be required if this occurs.
Most patio covers and carports require three inspections. Please use the
following information to plan for these:
CAISSONS AND PIERS
· Inspection Record Card posted on site.
· Approved plans posted on site.
· Inspection Record Card posted on site.
· Approved plans posted on site.
· All Framing, fire blocking and bracing, which will be covered
up at the final inspection, has been completed.
· Inspection Record Card posted in window.
· All framing work done and approved.
All construction drawings must be legible and submitted in duplicate. Plans
may be blueprints or originals on a good grade of plain white paper. Plans
must either be drawn to scale or with all dimensions clearly shown. The
following plans are required:
PLOT PLAN (Click to see sample
· North Arrow.
· Property Address.
· Lot Dimensions.
· Easements and adjoining street name(s).
· Parking and sidewalk locations.
· Location of proposed and existing structures including house,
detached garages, sheds and deck. Show dimensions and distances to property
lines and all other buildings on property.
· Location of utility lines inclusive of water, sewer, electric
and gas lines, if affected by project.
· Drainage pattern, if affected by project.
STRUCTURAL AND LAYOUT PLAN VIEW
· Overall dimensions.
· Dimensions of footings/caissons (8"diameter if caissons).
· Depth of footings/caissons below grade (30" minimum).
· Beam size and bearing locations.
· Post anchor size.
· Grade and species of all wood framing members.
· Size, spans, and spacing of joists, beams and posts.
· Size and species of decking materials.
· Bracing details.
· Finish grade with slope shown.
· Show dimensions.
· Location and size of stairs and guardrail and window wells.
· If involved in this project, show:
· Electrical shown on plans including outlets, switches, fixtures
and electrical service entrance location. (Especially if affected by new
PATIO SECTION AND DETAILS
Use the building section diagram and the accompanying details to complete
- Click to View Building
- Fill in the blanks with dimensions and materials which will be used
to build the structure. Please print legibly.
- Indicate in the check boxes which details from page 3 will be used.
Please note if any of the sides of your carport addition are closer than
3'-0" to the property line, that side of the carport must be enclosed
with a solid 1 hour fire rated wall as shown in Alternate Details B and
C. You must however, keep at least two sides of the carport open to conform
to the building code requirements. Zoning approval is required.
- Click to View:
- Roofing to be installed per manufacturer's instructions, including low
slope application and required inspections made.
Do not alter existing drainage
patterns. Prevent run-off water from crossing onto adjoining properties.
Structures which are more than 24" above grade must be placed within
the minimum setback distances away from property lines, dependent upon the
zone district in which they are located as specified in the Longmont Municipal
Code Section 15.05.010.
ZONE DISTRICT SETBACK REQUIREMENTS
R1, R2, R3, RLE
||One foot for every 2 1/2 feet of building
height, height being measured from 1/2 the peak of the house to the
||6 feet away from sheds, detached garages,
|PLEASE NOTE: If the property is in a Planned
Unit Development District (PUD), the setbacks are as specified on the
Plat Map for the development. You may call Building Inspection for setback
Redwood is unsuitable for Structural Members (i.e. Beams, Joists and Ledger
Boards, etc.) Redwood may be used for posts, roof sheathing more than 50%
open, handrails and trim. Pressure treated or approved wood of natural resistance
to decay must be used when the wood is in contact with concrete.
The minimum depth is 30" to get below frost line; minimum width is
8". Footings/Caissons which support large loads, or constructed on
poor soils may require different foundation designs.
Posts are attached to the caissons below and the beams above with suitable
anchors and brackets. Posts are 4"X4" minimum. Redwood may be
used if it is relatively free of knots and splits. Otherwise, pressure treated
lumber may be required.
The minimum ledger size shall be the same size as the rafters. Ledger boards
are attached to the house with lag bolts that are at least 3/8" in
diameter and long enough to go through the ledger board, siding, and they
shall also penetrate fully into the rim joist or other backing inside the
The new structure shall not bear on any part of a house cantilever.
These are placed diagonally between the posts and beams and may be required
for covers and structures built high enough to cause sway.
BEAMS AND RAFTERS
Beam and rafter sizes are determined by a 30 psf. live load and a 10 psf.
dead load, in combination with span lengths and roof area supported. Because
there are many combinations of span and roof area, this pamphlet will not
attempt to address all of these. The minimum sizes will be verified with
the aid of a computer program by the Building Inspection office upon review
of your project.
Beams are attached to posts below with suitable metal ties. Beams may cantilever
out from support posts a maximum of 1'-0". Beams may be either one
solid piece of lumber or more commonly, two boards of equal size may be
attached together forming one solid member.
Rafters may be attached on top of the Ledger Board or to the side with joist
hangers. They may be attached on top of the beams with solid blocking between
them. Another method of attachment is with joist hangers in order to be
"flush" on top with the top of beam. In this case it is required
that the beam be either one solid piece or two or more boards securely fastened
together to form one solid member.
50% MINIMUM OPEN ROOF COVERING
Two inch nominal wood including Redwood may be used for "slat type"
roofing provided the space between allows for at least 50% openness for
snow to fall out and not build up a snow load.
ROOF SHEATHING AND ROOFING
Please refer to the Uniform Building Code for information on plywood, particleboard
sheathing, or roofing information. Asphalt shingles must be fastened with
a minimum of 6 fasteners and shall be hand or self sealing.
Electric meter height must remain at 5'6" above grade. In the case
of a deck, the finished floor of deck is considered grade.
Proper height of overhead service drop must be maintained:
- A minimum of 10' at the service entrance to buildings, or above grade
or any surface accessible by pedestrians.
- A minimum of 3' above roofs with slopes greater than 3" in 12".
- A minimum of 15' over driveways.
- The meter may need to be moved in some instances.
Windows within a 2'-0" arc of either vertical edge of doors and less than 5'-0" above the floor, require safety glazing.
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Last Updated: 11/16/07