Sign Regulations in Lewiston, Idaho
Lewiston, Idaho has specific sign regulations covering 53 sign types across 10 zoning districts. Regulated sign types include Required Address Numerals, Government Sign, Traffic Control Device. Height restrictions apply. Permits are required for most commercial signs. Use PermitPal to get instant access to the complete regulations.
Data last verified: May 8, 2025
Sign Regulation Overview for Lewiston, Idaho
Sample Sign Requirements in Lewiston
| Sign Type | Max Height | Max Area | Setback |
|---|---|---|---|
| Temporary Sign (General - Open to Public) | — | 4 sq ft | — |
| Temporary Sign (General - Under Construction/Sale/Lease/Rent) | — | 32 sq ft | — |
| Temporary Sign (General - Election Period) | — | 32 sq ft | — |
* Sample data shown. Actual requirements may vary by zone. Use PermitPal for complete, location-specific regulations.
Sign Types Covered
53
- Required Address Numerals
- Government Sign
- Traffic Control Device
- Official Notice or Advertisement by Public or Court Officer
- +2 more types
Zoning Districts
10
Different zoning districts with specific sign regulations
Data Includes
- Permit requirements
- Height restrictions
- Illumination rules
Official Resources for Lewiston
Other Cities in Idaho
Frequently Asked Questions
Sign height limits in Lewiston vary by zone and sign type. Wall signs typically range from 25-40 feet, while monument signs are usually limited to 6-10 feet. Use PermitPal to get exact requirements for your property.
To get a sign permit in Lewiston, submit an application to the local building or planning department with sign dimensions, location, and design specifications. Our data confirms permits are required for most commercial signs. Processing typically takes 1-4 weeks. PermitPal helps you identify specific requirements and prepare complete applications.
In Lewiston, regulated sign types include Required Address Numerals, Government Sign, Traffic Control Device, Official Notice or Advertisement by Public or Court Officer, and 2 more types. Most commercial signs require permits. Temporary signs and certain small signs may be exempt. Use PermitPal for specific exemptions.
Sign setback requirements in Lewiston vary by zone and sign type, typically ranging from 5-15 feet from property lines. Use PermitPal for specific setback requirements at your location.
Digital and LED signs in Lewiston are regulated with specific requirements for brightness, animation, and message duration. Lewiston has documented illumination rules in our database. Use PermitPal to see the exact requirements for electronic message centers.
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Lewiston, Idaho Sign Rules at a Glance
Lewiston, Idaho regulates 53 sign types across 10 zoning districts. Ground Monument Sign (Residential - Churches, Semi-public, Subdivision, Multifamily, Manufactured Home Park)s in the Residential Zone (F-2, R-1, R-2, R-2A, R-3, R-4, BASPAB, NHN, NHS, PD) zoning district are capped at 6 ft tall and 32 sq ft (Sec. Sec. 30-12(c)(6)). Most commercial signs in Lewiston require a permit.
Detailed Sign Ordinance Requirements for Lewiston, Idaho
Sign Rules by Zoning District in Lewiston (10 zones)
| Zoning District | Sign Types Regulated | Max Height | Max Area | Permit Required |
|---|---|---|---|---|
| General Regulations For All Zones | 8 | — | 32 sq ft | — |
| Residential Zone (F-2, R-1, R-2, R-2A, R-3, R-4, BASPAB, NHN, NHS, PD) | 8 | 6 ft | 32 sq ft | — |
| Commercial Zone (C-1, C-2, C-3, C-4, C-5, C-6, M-1, M-2, PD, P, A) | 10 | 40 ft | 200 sq ft | — |
| Local Commercial (C-1) | 6 | 6 ft (12 ft allowed if sign width ≤33% of sign height) | 33% of total window area | — |
| Central Commercial (C-5) | 10 | 40 ft | 200 sq ft | — |
| Mixed Use Zone (BASPAA, MXD-NL, NHMU, PD) | 1 | — | — | — |
| Billboard Overlay Zone | 1 | 40 ft (measured from centerline of adjacent street) | 378 sq ft | — |
| District (Historic District, as defined in Chapter 19.5) | 4 | — | — | — |
| Public Right-of-Way | 4 | 8 ft | 32 sq ft | — |
| Central Business District (as defined in section 37-145) | 1 | — | — | — |
Zone-by-Zone Sign Requirements in Lewiston(sample of 3 of 10 zones)
Residential Zone (F-2, R-1, R-2, R-2A, R-3, R-4, BASPAB, NHN, NHS, PD)
| Sign Type | Max Height | Max Area | Max Width | Setback | Signs Allowed | Location | Permit Required | Premium Details(Illumination, Size Formula, Permit Requirements, Additional Requirements — available with a free PermitPal account) | Ordinance Citation |
|---|---|---|---|---|---|---|---|---|---|
| Temporary Sign (Residential - General) | — | 6 sq ft | — | — | 1 | Anywhere on the property; not in clear vision area or area to be dedicated as public right-of-way. | — | Unlock | Sec. 30-12(a)(1), (c)(3) |
| Window Sign (Residential) | — | 2 sq ft | — | — | 1 | In one window on the property. | — | Unlock | Sec. 30-12(a)(2) |
| Wall Sign (Residential) | — | 2 sq ft | — | — | 1 | Next to one door on the property. | — | Unlock | Sec. 30-12(a)(2) |
| Temporary Sign (Residential - Sale, Lease, or Rent) | — | 6 sq ft | — | — | 1 | On property offered for sale, lease, or rent. | — | Unlock | Sec. 30-12(a)(3) |
| Bench Sign (Residential) | — | — | — | — | — | Not visible from the public right-of-way. | — | Unlock | Sec. 30-12(a)(4), (c)(4) |
| Wall Sign (Residential - Other) | — | 6 sq ft per dwelling unit | — | — | No more than 2 signs per lot street frontage | Anywhere on the property except clear vision areas or public right-of-way to be dedicated. | — | Unlock | Sec. 30-12(b), (c)(1), (c)(5) |
| Ground Monument Sign (Residential - Churches, Semi-public, Subdivision, Multifamily, Manufactured Home Park) | 6 ft | 32 sq ft | — | — | 1 per entrance | One per entrance to allowed use; not within clear vision area or area to be dedicated as public right-of-way. | — | Unlock | Sec. 30-12(c)(6) |
| Freestanding Sign (Residential - Churches, Semi-public, Subdivision, Multifamily, Manufactured Home Park) | 6 ft | 32 sq ft | — | — | 1 per entrance | One per entrance to allowed use; not within clear vision area or area to be dedicated as public right-of-way. | — | Unlock | Sec. 30-12(c)(6), (8) |
Commercial Zone (C-1, C-2, C-3, C-4, C-5, C-6, M-1, M-2, PD, P, A)
| Sign Type | Max Height | Max Area | Max Width | Setback | Signs Allowed | Location | Permit Required | Premium Details(Illumination, Size Formula, Permit Requirements, Additional Requirements — available with a free PermitPal account) | Ordinance Citation |
|---|---|---|---|---|---|---|---|---|---|
| Temporary Sign (Commercial General) | — | 32 sq ft | — | — | 1 | On property | — | Unlock | Sec. 30-13(a)(1) |
| Window Sign (Commercial General) | — | Up to 50% of total window area incl. glass doors | — | — | — | On windows of building | — | Unlock | Sec. 30-13(a)(2) |
| Bench Sign (Commercial General) | 4 ft | 14 sq ft | — | — | 1 | On property; must not obstruct free and clear vision of pedestrian and vehicular traffic, including clear vision areas | — | Unlock | Sec. 30-13(a)(3) |
| Wall Sign (Commercial General) | — | — | — | — | — | On building wall | — | Unlock | Sec. 30-13(c)(1) |
| Freestanding Sign (Commercial General) | 40 ft | 200 sq ft | — | — | 1 per 500 ft street frontage | Not in required side or rear yard; may project out to public right-of-way with required ground clearance | — | Unlock | Sec. 30-13(c)(2) |
| Ground Monument Sign (Commercial General) | 6 ft (12 ft allowed if sign width ≤33% of height) | — | — | — | 1 per 500 ft street frontage | Not in required side or rear yard | — | Unlock | Sec. 30-13(c)(3) |
| Roof Sign (Commercial General) | ½ building height or 10 ft, whichever is less | — | — | — | — | On building roof | — | Unlock | Sec. 30-13(c)(4) |
| Projecting Sign (Commercial General) | — | 60 sq ft | — | — | 1 per street frontage | Cannot project over public right-of-way; at least 15 feet above vehicle access routes. | — | Unlock | Sec. 30-13(c)(5) |
Central Commercial (C-5)
| Sign Type | Max Height | Max Area | Max Width | Setback | Signs Allowed | Location | Permit Required | Premium Details(Illumination, Size Formula, Permit Requirements, Additional Requirements — available with a free PermitPal account) | Ordinance Citation |
|---|---|---|---|---|---|---|---|---|---|
| Temporary Sign (C-5) | — | 6 sq ft | — | — | 1 | On property | — | Unlock | Sec. 30-14(a)(1) |
| Window Sign (C-5) | — | 33% of total window area | — | — | 1 | On windows of building | — | Unlock | Sec. 30-14(a)(2), (c)(1)d |
| Bench Sign (C-5) | 4 ft | 14 sq ft | — | — | 1 | On property; must not obstruct free and clear vision of pedestrian and vehicular traffic, including clear vision areas | — | Unlock | Sec. 30-14(a)(3) |
| Wall Sign (C-5) | — | — | — | — | — | On building wall | — | Unlock | Sec. 30-14(c)(1)a, b, d |
| Freestanding Sign (C-5) | 40 ft | 200 sq ft | — | — | 1 per 500 ft street frontage | Not in required side or rear yard; may project out to public right-of-way with required ground clearance, but not over public right-of-way, alleys, or driveways. | — | Unlock | Sec. 30-14(c)(2) |
| Ground Monument Sign (C-5) | 6 ft (12 ft if width ≤33% of height) | — | — | — | 1 per street frontage | Not in required side or rear yard | — | Unlock | Sec. 30-14(c)(3) |
| Roof Sign (C-5) | ½ height of building or 10 ft, whichever is less | — | — | — | — | On building roof | — | Unlock | Sec. 30-14(c)(4)b |
| Projecting Sign (C-5) | — | 60 sq ft | — | — | 1 per street frontage | May project over public right-of-way up to 2/3 of building to curb distance but not closer than 2 ft to curb; up to 3 ft over alley. | — | Unlock | Sec. 30-14(c)(5) |
PermitPal covers all 10 zoning districts in Lewiston — full sign requirements for every zone, plus illumination rules, size formulas, and permit requirements for every sign type — with a free account.
See all 10 zones for Lewiston — start freeProhibited Signs in Lewiston
- No sign shall be placed, erected, affixed, attached, or otherwise established or displayed without a permit, unless otherwise exempted by this chapter.
- A person may only place signs on property owned or controlled by such person, unless the property owner's consent is obtained.
- Signs shall not be internally illuminated or animated unless specifically authorized by this chapter.
- No sign shall interfere with any component of a building's exiting system, such as doors, windows, and fire escapes.
- Signs are prohibited in all zoning districts unless authorized under this chapter and placed pursuant to a valid sign permit when required.
- Signs that block free ingress or egress from any door, window, or fire escape are prohibited.
- Signs that do not provide sufficient horizontal or vertical clearance from any communication line or energized electrical powerline as required by the laws of the State of Idaho are prohibited.
- Signs attached to streetlights located on public property or in the public right-of-way are prohibited unless expressly authorized in this chapter.
- Signs that may be misconstrued as a traffic control device are prohibited.
- Signs that obstruct any traffic or street sign or signal are prohibited.
- Graffiti is prohibited.
- Signs that pose a threat to public safety are prohibited.
- Signs that do not comply with the requirements set forth in this chapter are prohibited.
- Signs erected or maintained that, by use of lights or illumination, create a hazardous condition to motorists, pedestrians, or the general public are prohibited.
Exempt Signs in Lewiston
- Numerals that identify the address of the property, as required by chapter 31 of this Code and the Lewiston Fire Department; no permit required.
- Government signs, as defined in the ordinance, are authorized without a sign permit in every zoning district when erected, maintained, or posted in accordance with the law.
- Traffic control devices on private or public property that comply with the adopted Manual on Uniform Traffic Control Devices; no permit required.
- Official notices or advertisements posted or displayed by or under the direction of any public or court officer in the performance of official duties; no permit required (must be removed after their purpose is accomplished or as required by law).
- Wall art displays without electrical or mechanical components; must not project more than six (6) inches from the wall; no permit required.
- Signs authorized in Sec. 30-8 (address signs), Sec. 30-9 (government/traffic/official notices/wall art displays), and Sec. 30-10 (temporary signs as listed) do not count toward any limitation on the number or area of signs allowed on private property.
- Specified temporary signs as authorized in section 30-10 (small signs on event days, construction/real estate signs, and election signs as detailed) do not require a sign permit.
- Bench signs located in residential zones that are not visible from the public right-of-way do not require permits.
- Signs for temporary vendors in all commercial zones as per Sec 30-19 (up to 32 square feet, not illuminated/animated, not in the ROW) do not require a sign permit.
- Maintenance, change of sign copy, and minor repairs that do not include structural modification or change in sign area or height do not require a sign permit.
Sign Plan & Submission Notes for Lewiston
- A sign permit application may include a request for multiple signs located on a single lot.
- A certificate of appropriateness (and a sign permit) is required before placing, constructing, altering, or relocating a sign in a historic district, except for replacing sign copy, maintenance not altering structure or colors, or temporary signs.
- An applicant for a sign permit may request a waiver from the requirements of this chapter by filing an application with the department to be considered at a public hearing by the planning and zoning commission.
- If a waiver (variance) is sought, the planning and zoning commission holds a meeting, and the process includes hearing, written decision, and possible appeal.
- Within all residential/commercial zones, a property owner must secure a sign permit before placing any sign on the owner's property except for those signs explicitly exempted or authorized without a permit per the ordinance.
- For signs projecting or encroaching into the public right-of-way (e.g., projecting signs, marquee signs), an encroachment permit is required.
- For billboards, plan sets approved and stamped by an engineer or architect licensed in the State of Idaho are required as part of the application.
Source: municode municipal code