How High Does an Awning Have to Be Over a Sidewalk?
Quick answer
Over a public sidewalk, plan on 8 ft from the walking surface to the lowest part of the awning frame and 7 ft to the bottom of a soft valance. The model International Building Code sets only the 7 ft figure, "to the lowest part of any awning, including valances," but New York City, Los Angeles County and the New York Landmarks commission all write the rule as 8 ft to the frame with 7 ft allowed for a flexible valance, while Seattle and Washington, DC ask for 8 ft to the awning. Below 15 ft, the model code also stops the awning at two-thirds of the sidewalk width and keeps posts at least 2 ft in from the curb. New York caps storefront awnings at 8 ft of projection and window awnings at 5 ft; DC allows 5 ft and keeps 10 to 15 ft clear of the curb. Most cities also need a separate right-of-way approval on top of the building permit.
Plan on 8 feet from the sidewalk to the lowest part of the awning frame and 7 feet to the bottom of a soft valance. That pair meets the model building code and every large city checked here except Seattle and Washington, DC, which ask for 8 feet to the awning itself; there, keep the valance above 8 feet too. The model International Building Code (IBC) sets only one number: "The vertical clearance from the public right-of-way to the lowest part of any awning, including valances, shall be not less than 7 feet." The 8 foot figure comes from cities that write the frame and valance as separate limits. Both numbers are right for the part they describe.
Clearance is half the rule. The other half is how far out the awning may reach, and there cities use three different systems.
Clearance and projection rules by jurisdiction
Figures are as printed in each code or official guidance. Projection is measured horizontally from the lot line to the outermost point of the awning (model code Section 3201.2).
| Jurisdiction and source | Minimum clearance | How far out | Curb and posts |
|---|---|---|---|
| Model IBC, Sections 3202.2.3 and 3202.3.1 (2021 text) | 7 ft to the lowest part, including valances | No more than two-thirds of the sidewalk width when under 15 ft of clearance; unlimited at 15 ft or more | Posts at least 2 ft in from the curb line |
| New York City Building Code, 3202.2.3 | 8 ft to any part; 7 ft for a flexible valance on storefronts | Storefronts 8 ft beyond the street line (box or cover 12 in max); windows and doors 5 ft | Supported entirely from the building |
| New York City Landmarks Preservation Commission (designated buildings) | 8 ft to the lowest framed part; 7 ft to the unframed skirt | Length within the storefront opening; skirt no larger than 12 in | Frame attached to the storefront framing or surround |
| Los Angeles County, Building Code Manual 3105 (2011) | At least 8 ft above the public way; 7 ft to the lowest part, including valances | Two-thirds of the sidewalk between 8 and 15 ft; unlimited at 15 ft or more | Awning no closer than 2 ft to the curb line |
| City of Los Angeles, LAMC 91.3202.3.1 | Model code text | Two-thirds of the sidewalk when under 15 ft | Posts at least 2 ft in from the curb line |
| San Francisco (California Building Code, Public Works review) | 7 ft (CBC 3202.2.3) | Two-thirds of the sidewalk under 15 ft (CBC 3202.3.1) | Any post in the right-of-way needs a Minor Sidewalk Encroachment permit |
| Seattle (SDOT, Streets Illustrated) | 8 ft minimum clearance of awning over sidewalk | Set in the street use approval | Approved by the Director of Transportation and the building official |
| Washington, DC (DCMR 12A-3202.12.1, 2023 agency guidelines) | 8 ft from the grade below | Up to 5 ft; width of the opening plus up to half its width on each side | Clear of the curb by 10 ft (60 to 80 ft right-of-way), 12 ft (over 80 to 90 ft) or 15 ft (over 90 ft) |
Every jurisdiction here that writes its own awning text uses 8 ft for the rigid part; the model code's 7 ft survives as the limit for the soft edge. The projection rules, by contrast, have nothing in common.
If the walkway is your own, not a public sidewalk, none of this applies and the headroom target in the awning mounting height guide takes over.
7 feet or 8 feet: why both numbers circulate
The reason is in how the model code is laid out. IBC Section 3202.2 covers encroachments "above grade and below 8 feet in height" and prohibits them except for steps, small architectural features and awnings at 7 ft. Everything else about awnings, including the two-thirds rule and the 2 ft post setback, sits under Section 3202.3, "Encroachments 8 feet or more above grade."
Read together, they describe an awning whose structure is at 8 ft or more, with only its lowest edge down to 7 ft. Los Angeles County's building code manual restates it that way: "At least 8 feet above any public way. The lowest part of any awning, including valances, shall have 7 feet minimum vertical clearance." New York City writes the same pair into its own code, with the 7 ft limited to "a flexible valance," and the Landmarks Preservation Commission requires the lowest framed portion at 8 ft and the unframed skirt at 7 ft.
So "7 feet" is the model code's headline number and "8 feet" is the frame limit in city codes. The mistake is applying 7 ft to the frame: a rigid front bar at 7 ft passes the bare model text but fails in New York, Los Angeles County, Seattle and DC. Below all of them sits the 2010 ADA Standards' 80 inch vertical clearance for accessible routes, which a 7 ft (84 in) valance clears by 4 inches.
The 12 inch rule hiding in the numbers: 8 ft to the frame and 7 ft to the valance leaves 12 inches, and the Landmarks commission caps the skirt at exactly 12 inches. When ordering or replacing a valance, keep it at 12 inches or less below the front bar.
How far the awning may reach
Work out the limit under each system that applies, and take the smallest.
- Fraction of the sidewalk (model IBC, Los Angeles, San Francisco). Below 15 ft of clearance, an awning "shall not extend into or occupy more than two-thirds the width of the sidewalk measured from the building." A 12 ft sidewalk allows 8 ft, a 9 ft sidewalk 6 ft. Los Angeles County adds that the awning itself may not come within 2 ft of the curb.
- Fixed maximum (New York, DC). New York allows 8 ft beyond the street line for a storefront awning and 5 ft for an awning over a window or door, whatever the sidewalk width. DC allows awnings to project up to 5 ft.
- Clear distance from the curb (DC). DC keeps a minimum clear space from the outer edge of the curb to the outer face of all projections: 10 ft where the right-of-way is 60 to 80 ft wide, 12 ft where it is over 80 to 90 ft, 15 ft where it is over 90 ft. On a 14 ft sidewalk with a 10 ft curb clear, about 4 ft is left.
Width along the building is tied to the opening: DC allows up to half the opening's width on either side, and the Landmarks commission says the length must not exceed the storefront opening. For measuring the opening and the wall, see how to measure for an awning.
Setting the height of a retractable awning over a sidewalk
A retractable awning slopes down from the wall, so its lowest rigid point is the front bar at full extension. Work the bracket height backward from the 8 ft frame limit: front bar height plus the drop over the projection, which is the projection times the sine of the pitch. The projection and pitch guide has the drop for each angle.
Worked example
A storefront on a 9 ft sidewalk wants a retractable awning. Two-thirds of 9 ft is 6 ft, so the projection is 6 ft (72 in).
At 14 degrees the drop is 72 x 0.242 = 17.4 in. For the front bar at 96 in (8 ft), the brackets go at 96 + 17.4 = 113.4 in, about 9 ft 5 in. A 12 in valance then ends at 84 in, exactly 7 ft.
Steepen the pitch to 20 degrees for better runoff and the drop becomes 72 x 0.342 = 24.6 in. The front bar falls 7.2 in, to about 7 ft 5 in, and the valance to about 6 ft 5 in. Both now fail. Raise the brackets the same 7.2 in.
Measure clearance at the highest point of the walking surface under the awning, not at the door threshold. And because pitch is adjustable on most lateral-arm awnings, a later service call that steepens it to stop water pooling can push a compliant awning below the limit.
Drainage counts too. Los Angeles County does not allow concentrated rainwater from an awning to flow over a sidewalk, and the model code text Seattle reprints carries the same rule for roofs, awnings, canopies and marquees.
The second approval most cities require
Over a public sidewalk the building permit is rarely the only approval, because the sidewalk belongs to the city.
- San Francisco: the Department of Building Inspection reviews awnings under the California Building Code, and Public Works issues a Minor Sidewalk Encroachment permit when posts stand in the right-of-way. Building Inspection will consider an awning below 7 ft, but Public Works says there is "a high likelihood" it will object.
- Los Angeles County: encroachment into the right-of-way needs approval from the Regional Planning and Permit Section, and the awning must not interfere with telephone or power lines.
- Seattle: the 2021 Seattle Building Code strikes the model Section 3202 and makes encroachments over sidewalks subject to approval by the Director of Transportation and the building official.
- Washington, DC: projections that cannot meet the curb distances need a code modification from the Department of Buildings. Staff support awnings up to 18 in over windows and 3 ft over entrances in those cases, with at least 12 ft of clearance.
- Chicago: awnings over the public way have been granted by City Council ordinance. One 2011 ordinance for eight awnings on East 53rd Street, each 3.33 ft deep, ran five years at $25 a year under Municipal Code Section 10-28-015.
Lettering on the awning can add a sign permit; see storefront awning signage. Fabric, wind and snow requirements are covered in the guide to commercial awning codes and fire ratings, and outdoor dining cover, which often adds a sidewalk cafe permit, in restaurant awnings.
Where this answer stops applying
- Your city is not listed. Most US cities adopt the IBC with amendments, so the model figures are the starting point, but many towns write their own awning ordinances. Ask the building department and the office that manages the right-of-way.
- Code editions. The table uses the editions linked below; later amendments may differ.
- Canopies and marquees. Post-supported canopies and marquees have their own rules. New York, for example, requires marquees to be at least 10 ft above the sidewalk and no nearer than 2 ft to the curb line.
- Historic districts. Design review can restrict shape and color beyond these dimensions.
For awning types, frames and pricing for a storefront, start with the commercial awnings guide.
Frequently asked questions
Is the minimum awning height over a sidewalk 7 feet or 8 feet?
Both, for different parts. The model IBC requires 7 ft to the lowest part, including valances. New York City and Los Angeles County require 8 ft to the frame with a soft valance allowed to 7 ft, and Seattle and DC ask for 8 ft to the awning.
How far can an awning stick out over a sidewalk?
Under the model IBC, two-thirds of the sidewalk width when the awning is under 15 ft up. New York City allows 8 ft for storefront awnings and 5 ft over windows and doors; DC allows 5 ft and keeps 10 to 15 ft clear of the curb.
Do I need a separate permit for an awning over a public sidewalk?
Usually. San Francisco, Los Angeles County, Seattle and DC each add a right-of-way approval to the building permit, and Chicago has granted awnings by City Council ordinance.
Sources and further reading
- Seattle Department of Construction and Inspections: 2021 Seattle Building Code, Chapter 32, Encroachments into the Public Right-of-Way (reprints the struck model IBC text)
- Seattle Department of Transportation: Streets Illustrated, lateral and vertical clearances
- UpCodes: New York City Building Code, Chapter 32, Encroachments into the Public Right-of-Way
- New York City Landmarks Preservation Commission: Permit Guidebook, Chapter 4, Awnings and Sidewalk Canopies
- County of Los Angeles Department of Public Works: Building Code Manual 3105, Article 1, Awnings (June 28, 2011)
- GoCodeBook: Los Angeles Building Code, LAMC Section 91.3202
- San Francisco Public Works: Awnings: when Public Works review and permits are required
- DC Office of Planning, District Department of Transportation and Department of Buildings: Guidelines for Overhead Building Projections (February 2023)
- U.S. Access Board: 2010 ADA Standards, Section 307, Protruding Objects
- Chicago City Council: Ordinance O2011-4667, awnings for HSC Commercial (2011)
How we write our guides: figures are typical US ranges checked against manufacturer documentation, published standards and installer pricing. Read our editorial standards. Spotted an error or outdated detail? Request a correction.