Adams County, Colorado Sign Code & Sign Permit Guide

Q: What is the sign code for Adams County, Colorado?

Adams County's sign regulations are set by §4-17 Signs · Adams County Development Standards, and vary by zoning district. Sightline tracks 4 verified zone families for Adams County below, each with wall, freestanding, and other sign-type limits cited to the exact section.

Q: Do I need a permit for a sign in Adams County?

In nearly every Colorado municipality, including Adams County, permanent signs — wall signs, channel letters, cabinets, monument signs — require a sign permit. Adams County's permit process is linked below. Always confirm with the authority having jurisdiction before finalizing a design.

Wall, monument, and freestanding sign limits for Adams County by zoning district — cited to the exact code section, with the sign permit process. Every number is checked against the published code text before it ships.

Jump to: Commercial & Industrial (C-0, C-1, C-2, I-1, I-2, I-3, NP, RP) · C-3, C-4, C-5 (higher-intensity commercial) · Agricultural (A-1, A-2, A-3) · Residential & Low-Intensity (R-E, R-1-A, R-1-C, R-2, R-3, R-4, M-H, NA, CO, PL)

Commercial & Industrial (C-0, C-1, C-2, I-1, I-2, I-3, NP, RP)

Zones like C-0

§4-17-06-04-02 (Freestanding) and §4-17-06-05-02 (Building-Mounted) name these zones together for both height/area figures.

100 sf

Freestanding area

24 ft

Freestanding height

5% of wall

Building-mounted area

Sum of smallest enclosing rectangles: Sign area is the sum of the smallest rectangle(s) enclosing the sign copy (and its background, if distinctively treated). Individual letters/graphics against an untreated wall get a separate rectangle per word/graphic, summed. An illuminated surface or element counts in full, not just its lettering.

Freestanding Sign

§4-17-06-04-02

Maximum number	1 sign for 0–499 ft of street frontage; +1 additional for 500 ft+ of street frontage.
Maximum height	24 ft.
Maximum area	100 sf.
Setback	15 ft, or the sign's height, from any side/rear lot line, whichever is greater (front setback not confirmed — confirm with the county).
Landscaping	Required living-material landscaped base, spacing ≤3 ft on center.
Clearance	No projection over any sidewalk, private drive, parking lot, or public road.

Building-Mounted Sign

§4-17-06-05-02

Maximum number	1 per frontage or commercial/industrial user.
Maximum area	5% of the building wall area the sign is mounted on.
Placement	Not above the cornice line.
Clearance	9 ft over sidewalk/drive/parking lot; 12 ft over a public road.
Small projecting/suspended exception	Signs extending <4 ft, hung ≥6 in from the building, clearing the sidewalk by ≥8 ft, don't count against the sign-count limit (still count against area).

Electronic Message Centers

§4-17-06-03

Permitted on	Incorporated into a permanent freestanding or permanent wall sign only.
Message hold time	≥4 seconds minimum (10 seconds optimal).
Transitions	Instantaneous only — no animation, video, scrolling, or audible sound.
Brightness	≤0.3 foot-candles over ambient, with required auto-dimming.

See the exact numbers

Height, setback, area, count, and lighting limits for Commercial & Industrial (C-0, C-1, C-2, I-1, I-2, I-3, NP, RP) — cited to the code section, ready to quote from.

Get notified at launch

C-3, C-4, C-5 (higher-intensity commercial)

Zones like C-3

§4-17-06-04-02 names C-3/C-4/C-5 in the 24 ft freestanding-HEIGHT group but omits them from both freestanding-AREA groups entirely; §4-17-06-05-02 gives them their own distinct 15% building-mounted rate, higher than every other group.

24 ft

Freestanding height

not stated — confirm with county

Freestanding area

15% of wall

Building-mounted area

Freestanding Sign

§4-17-06-04-02

Maximum number	1 sign for 0–499 ft of street frontage; +1 additional for 500 ft+ of street frontage.
Maximum height	24 ft.
Maximum area	Not stated in the code for these zones — confirm with the county.
Setback	15 ft, or the sign's height, from any side/rear lot line, whichever is greater (front setback not confirmed).
Landscaping	Required living-material landscaped base, spacing ≤3 ft on center.

Building-Mounted Sign

§4-17-06-05-02

Maximum number	1 per frontage or commercial/industrial user.
Maximum area	15% of the building wall area the sign is mounted on — the highest building-mounted allowance of any group.
Placement	Not above the cornice line.
Clearance	9 ft over sidewalk/drive/parking lot; 12 ft over a public road.

Electronic Message Centers

§4-17-06-03

Permitted on	Incorporated into a permanent freestanding or permanent wall sign only.
Message hold time	≥4 seconds minimum (10 seconds optimal).
Transitions	Instantaneous only.
Brightness	≤0.3 foot-candles over ambient, with required auto-dimming.

See the exact numbers

Height, setback, area, count, and lighting limits for C-3, C-4, C-5 (higher-intensity commercial) — cited to the code section, ready to quote from.

Get notified at launch

Before you submit

Freestanding sign AREA is not stated anywhere in §4-17-06-04-02 for these three zones — confirm with the county before quoting a freestanding sign here. Height (24 ft) and building-mounted area (15%) ARE stated and shown below.

Agricultural (A-1, A-2, A-3)

Zones like A-1

§4-17-06-04-02 groups A-1/A-2/A-3 with the RESIDENTIAL zones for freestanding height (12 ft) but with the COMMERCIAL/INDUSTRIAL zones for freestanding area (100 sf) — a short-but-wide allowance unique to this group. §4-17-06-05-02 groups them with commercial/industrial for building-mounted area (5%).

100 sf

Freestanding area

12 ft

Freestanding height

5% of wall

Building-mounted area

Freestanding Sign

§4-17-06-04-02

Maximum number	1 sign for 0–499 ft of street frontage; +1 additional for 500 ft+ of street frontage.
Maximum height	12 ft.
Maximum area	100 sf.
Setback	15 ft, or the sign's height, from any side/rear lot line, whichever is greater (front setback not confirmed).
Landscaping	Required living-material landscaped base, spacing ≤3 ft on center.

Building-Mounted Sign

§4-17-06-05-02

Maximum number	1 per frontage or commercial/industrial user.
Maximum area	5% of the building wall area the sign is mounted on.
Placement	Not above the cornice line.
Clearance	9 ft over sidewalk/drive/parking lot; 12 ft over a public road.

Electronic Message Centers

§4-17-06-03

Permitted on	Incorporated into a permanent freestanding or permanent wall sign only.
Message hold time	≥4 seconds minimum (10 seconds optimal).
Transitions	Instantaneous only.
Brightness	≤0.3 foot-candles over ambient, with required auto-dimming.

See the exact numbers

Height, setback, area, count, and lighting limits for Agricultural (A-1, A-2, A-3) — cited to the code section, ready to quote from.

Get notified at launch

Residential & Low-Intensity (R-E, R-1-A, R-1-C, R-2, R-3, R-4, M-H, NA, CO, PL)

Zones like R-E

§4-17-06-04-02 (Freestanding) and §4-17-06-05-02 (Building-Mounted) name these ten zones together for both figures — the only group with a FLAT building-mounted cap (40 sf) instead of a wall-area percentage.

40 sf

Freestanding area

12 ft

Freestanding height

40 sf flat

Building-mounted area

Freestanding Sign

§4-17-06-04-02

Maximum number	1 sign for 0–499 ft of street frontage; +1 additional for 500 ft+ of street frontage.
Maximum height	12 ft.
Maximum area	40 sf.
Setback	15 ft, or the sign's height, from any side/rear lot line, whichever is greater (front setback not confirmed).
Landscaping	Required living-material landscaped base, spacing ≤3 ft on center.

Subdivision / Neighborhood Identification Sign

§4-17-06-04-02

Maximum area	40 sf.
Maximum height	12 ft.
Setback	8 ft minimum from the front property line; side/rear setback equal to the sign's height.
Spacing	Signs on the same road/highway side must be ≥1,320 linear ft apart.
Material	Brick or Director-approved material, in an area with an adopted Adams County Neighborhood Plan.
Maintenance	Maintained by an HOA, lot-owners association, or other County-approved management entity.

Building-Mounted Sign

§4-17-06-05-02

Maximum number	1 per frontage or commercial/industrial user.
Maximum area	40 sf flat (not a wall-area percentage, unlike every other group).
Placement	Not above the cornice line.
Clearance	9 ft over sidewalk/drive/parking lot; 12 ft over a public road.

Electronic Message Centers

§4-17-06-03

Permitted on	Incorporated into a permanent freestanding or permanent wall sign only.
Message hold time	≥4 seconds minimum (10 seconds optimal).
Transitions	Instantaneous only.
Brightness	≤0.3 foot-candles over ambient, with required auto-dimming.

See the exact numbers

Height, setback, area, count, and lighting limits for Residential & Low-Intensity (R-E, R-1-A, R-1-C, R-2, R-3, R-4, M-H, NA, CO, PL) — cited to the code section, ready to quote from.

Get notified at launch

Sign permits in Adams County

Adams County Community and Economic Development Department — 720-523-6800, cedd-plan@adamscountyco.gov

Adams County sign code FAQ

What is the sign code for Adams County, Colorado?

Adams County's sign regulations are set by §4-17 Signs · Adams County Development Standards, and vary by zoning district. Sightline tracks 4 verified zone families for Adams County below, each with wall, freestanding, and other sign-type limits cited to the exact section.

Do I need a permit for a sign in Adams County?

In nearly every Colorado municipality, including Adams County, permanent signs — wall signs, channel letters, cabinets, monument signs — require a sign permit. Adams County's permit process is linked below. Always confirm with the authority having jurisdiction before finalizing a design.

Look up an exact address in Adams County

Get the live zoning district and the sign limits that apply to a specific parcel, with a frontage calculator and a permit-ready citation.

Get notified at launch

See sign code for all 17 covered Colorado cities