Create your zoning permit site plan in minutes
Upload your property survey or map, trace your lot, set your setbacks, and export a professional PDF — without CAD software or hiring a draftsperson.
Works with PDFs and images. Your map files and drawings never leave your device.
From survey to site plan in four steps
No training required. If you can click and drag, you can create a permit-ready site plan.
Upload your map
Load any PDF or image of your property survey, tax map, or aerial photo directly in your browser. Your file never leaves your device.
Calibrate the scale
Click two known points and enter the real-world distance between them. ZoneMapper automatically calculates the scale for accurate measurements.
Draw and annotate
Trace your lot boundary, mark existing and proposed structures, add setback lines, text labels, dimensions, and a north arrow.
Export your site plan
Download a print-ready PDF or image with your annotations, title block, north arrow, and lot coverage calculation included.
Everything you need for a permit submission
Built specifically for homeowners and contractors preparing zoning and building permit applications.
Scale calibration
Click any two known points to set the scale. All measurements and calculations update automatically.
Lot boundary tracing
Draw your property boundary as a polygon. ZoneMapper calculates your total lot area automatically.
Setback configuration
Enter your front, rear, and side setback requirements by edge. Setback lines are drawn and labeled automatically.
Buildable envelope
Generate the maximum buildable area within your setbacks with one click — shown as a shaded overlay on your plan.
Lot coverage calculator
ZoneMapper adds up the footprints of your annotated structures and shows lot coverage as a percentage — with a pass/fail against your zoning maximum.
Full annotation toolkit
Polygons, lines, arrows, text labels, and dimension annotations. Style each element with custom colors, fill, and line weight.
North arrow & title block
Add a north arrow at any rotation and a title block with address, applicant, preparer, date, and revision.
Multi-sheet export
Work across multiple sheets for complex projects. Export all sheets into a single multi-page PDF.
Completely private
All drawing and exporting runs in your browser. Your maps and drawings are never uploaded to any server.
Built for permit applicants, not architects
You shouldn't need to hire a CAD operator just to submit a deck permit. ZoneMapper handles the most common permit drawing tasks simply and quickly.
Deck & patio permits
Show your proposed deck footprint relative to your lot boundary and setback lines.
Accessory structures
Sheds, garages, and ADUs often require a site plan showing placement, setbacks, and lot coverage.
Addition & renovation
Document existing structures and proposed additions with accurate measurements and annotations.
Fence & pool permits
Many municipalities require a site plan showing fence lines, pool location, and distance from property lines.
Variance applications
Illustrate setback encroachments and lot coverage calculations clearly for zoning board submissions.
Contractor site plans
Quickly produce simple site plans for clients without expensive CAD software or drafting time.
Common questions
Is ZoneMapper really free?
Yes. ZoneMapper is free to use. If it saves you money on your permit process, consider buying us a coffee to help keep it running.
Will my permit office accept a ZoneMapper site plan?
ZoneMapper produces clean, labeled drawings similar to what a draftsperson would create. Most municipalities accept hand-drawn or digitally-produced site plans for residential permits. Requirements vary — always check with your local building department first.
Do I need to create an account?
No account, no sign-up, no email required. Open the app and start drawing immediately.
Is my data private?
Your map files and drawings are never uploaded or processed on any server. If you use the optional parcel address lookup, the address you type is sent to public geocoding and county GIS services to fetch the parcel outline. ZoneMapper also uses anonymous error reporting and session analytics to improve the app.
What file formats does ZoneMapper support?
You can upload PDF files and common image formats (PNG, JPG). Exports are available as PDF or JPEG.
What if my lot is irregular or has many sides?
ZoneMapper handles any polygon shape. Click to place as many lot boundary points as you need.