🎯 Design
Storefront Sign Permit Drawing Package Planner: Frontage Based Sign Area Allowance, Box Method Area Math, Elevation and Site Plan Sheets, Illumination and Electrical Listing Notes, Mounting Detail, and Landlord Sign Criteria Check
Prepare the drawing set a city sign permit desk expects for a wall sign, blade sign, or window graphics: the allowed sign area from the code and the building frontage, the measured area of your design, the sheets to draw and what each must show, illumination and electrical notes, attachment details, and the landlord and district approvals to collect first.
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Prompt
Act as a sign designer and permit drafter who prepares storefront sign permit submittals for small businesses, reads the local sign code before opening a design file, and draws only what the plan reviewer needs to approve. Inputs: - Sign code excerpts you pasted for this zone: allowance per linear foot of frontage, maximum area per sign, number of signs, height limits, projecting sign clearance, illumination rules: [SignCodeExcerpt] - Building and tenant facts: tenant frontage in feet, storefront height, wall material, corner unit or not, historic district or design overlay: [StorefrontFacts] - The proposed signs: type (channel letters, flat panel, blade, awning, window vinyl), overall dimensions, letter heights, colors, and logo shape: [ProposedSigns] - Illumination and power: unlit, face lit, halo lit, LED module brand if known, where power will come from: [Illumination] - Landlord or shopping center sign criteria and any approval letter requirement: [LandlordCriteria] - Output format: [Format] Generate: 1. An allowance calculation: frontage times the per foot rate from SignCodeExcerpt, capped by any per sign maximum, minus existing signs that stay. Show the arithmetic. 2. Measured sign area for each proposed sign using the method the code names (often the smallest rectangle or combination of rectangles around the letters and logo). Show each rectangle and the total, and flag any sign that is over the allowance with two fixes (smaller letters, fewer lines, or moving copy to window graphics if the code exempts it). 3. A sheet list: site plan showing frontage and sign locations; front elevation to scale with the sign placed, dimensions from grade, and the frontage dimension; sign detail with letter heights, depth, colors, and materials; section or attachment detail; electrical notes. 4. For each sheet, a checklist of what the plan reviewer looks for, written as labels to place on the drawing. 5. Illumination and electrical notes from Illumination: lighting type, that the finished electrical sign must carry a listing label from a recognized testing lab, a separate electrical permit if the city requires it, and timer or dimming rules from SignCodeExcerpt. 6. Attachment detail notes based on wall material: raceway or direct mount, fastener type into masonry or framing, and when a structural note or engineer's stamp may be required. 7. A pre submittal approvals list: landlord signature or letter, design review or historic review if StorefrontFacts says so. 8. A short permit narrative paragraph to paste into the application. Constraints: - Never assume code numbers; any value not in SignCodeExcerpt is marked "confirm with the city". - Imperial units, square feet to two decimals. No em dashes.
Instructions
Replace every [bracket] with your details before running. Works on ChatGPT, Claude, and Gemini.
Generated Output
This image was generated using the prompt above.
Examples
Example Input
SignCodeExcerpt: commercial zone C2; wall signs allowed 1.5 sq ft per linear foot of tenant frontage, max 60 sq ft per sign; one projecting sign up to 6 sq ft with 8 ft minimum clearance over sidewalk; sign area measured as the smallest rectangle around each word or logo; illuminated signs off by 11 pm StorefrontFacts: 32 ft frontage, brick wall, not historic, inline unit ProposedSigns: halo lit channel letters reading a two word cafe name, letters 24 in tall, total run 18 ft; round logo 30 in diameter to the left; one 24 x 36 in blade sign Illumination: halo lit LED, power from a junction box above the door LandlordCriteria: channel letters only, centered over storefront, landlord approval letter required Format: allowance math, area table, sheet list with labels, notes, narrative
Example Output
1) ALLOWANCE 32 ft x 1.5 sq ft = 48.00 sq ft total for wall signs. Per sign max 60 sq ft, so the limit is 48.00 sq ft. Projecting sign: separate allowance up to 6.00 sq ft. 2) MEASURED AREA | Element | Rectangle | Area | | Letters, two words on one line | 18.0 ft x 2.0 ft | 36.00 sq ft | | Round logo | 2.5 ft x 2.5 ft | 6.25 sq ft | | Wall sign total | | 42.25 sq ft (under 48.00) | | Blade sign | 2.0 ft x 3.0 ft | 6.00 sq ft (at the 6.00 limit) | Both comply. If the city counts the space between logo and letters as one rectangle, the wall sign could exceed 48; confirm the measuring rule with the city, or keep a 6 in gap and show two rectangles. 3) SHEETS S1 Site plan, S2 Front elevation, S3 Sign details, S4 Attachment section, S5 Electrical notes 4) LABELS TO PLACE S1: property line, sidewalk, tenant frontage 32'-0", wall sign location, blade sign location, north arrow S2: elevation at 1/4" = 1'-0", sign centered over storefront, bottom of letters 11'-6" above grade, blade sign bottom 8'-6" above sidewalk (8'-0" minimum), area callouts 42.25 SF and 6.00 SF S3: letter height 24", return depth 3", aluminum letters, finish colors, logo 30" diameter, halo lit with LED modules S4: letters stud mounted 1.5" off brick for halo glow, stainless anchors into masonry, blade sign bracket detail S5: power from existing junction box above door, remote power supply location, timer set to off at 11:00 pm 5) ELECTRICAL NOTES - Finished sign to carry a listing label from a recognized testing lab - Electrical permit: confirm with the city whether a separate one is required - Timer: off by 11 pm per code 6) ATTACHMENT Direct mount studs into brick (not mortar joints where avoidable), stainless hardware. Blade sign bracket into masonry with through bolts; confirm with the city whether a structural note is required for projecting signs. 7) APPROVALS FIRST [ ] Landlord approval letter for channel letters centered over storefront [ ] No historic review needed 8) NARRATIVE "Tenant requests permits for one halo lit channel letter wall sign of 42.25 sq ft and one 6.00 sq ft projecting blade sign at a 32 ft frontage in zone C2. Total wall sign area is within the 48.00 sq ft allowance. Signs are listed electrical assemblies on a timer set to off at 11 pm. Landlord approval letter attached."