A permit application that comes back with questions costs you time. Sometimes a week, sometimes a month, depending on how busy the office is. Most of those delays aren't about bad projects. They're about missing information: a site plan without distances, a framing plan that doesn't match the size on the form, a missing product sheet.
The good news is that residential applications tend to ask for the same handful of things. This post walks through them so you can put together a complete packet. It's general guidance. Your office's own checklist always wins.
Start with the office's own checklist
Before anything else, look for your town's application form and any checklist or handout for your project type. Many offices post them online. If you can't find one, call and ask: "What do you need to see for a [deck, shed, fence, bathroom remodel] application?" The answer is the best single predictor of a smooth review. It is not a promise, but it helps enormously.
The usual pieces
The application form
The basics: property address, owner, contractor if any, a description of the work, an estimated cost, and signatures. Two tips. Describe the work plainly and completely; vague descriptions invite questions. And give an honest cost estimate. Many offices base fees on it, and an estimate that looks too low can trigger a follow-up.
A site plan
A drawing of your lot showing the property lines, the house, other structures, and the new work, with distances from the new work to the property lines and other buildings. For many projects, this is the most important page in the packet, because it's what zoning reviews. A survey or plot plan from your closing documents is a great starting point. Our post on site plans and sketches goes deeper.
Construction drawings
Depending on the project, this might be a floor plan, a framing plan, elevations, sections or details. For a deck: joist size and spacing, beam and post locations, footing size and depth, ledger attachment, guard and stair details. For a basement: room layout with uses labeled, window sizes, ceiling heights. For an addition, a full set of plans, often from a licensed professional.
The key is consistency. The size on the form, the site plan and the drawings must all match.
Product information
For manufactured items like composite decking, prefab sheds, windows, water heaters, EV chargers or solar equipment, offices often want the manufacturer's spec sheet or installation instructions. Inspectors check the installation against them.
Trade details
Electrical, plumbing and mechanical work may need separate permits and their own information: a fixture list, a panel schedule, a load calculation, or equipment specs. Who may file them depends on local licensing rules.
Other approvals
Depending on your property: HOA approval, historic-district review, health-department review for septic, or utility approval for solar. Some offices want to see these before they'll issue a permit.
How to make it complete the first time
- Answer the obvious questions before they're asked. Distances, sizes, heights, materials.
- Keep everything consistent. If you change the deck from 12 by 16 to 12 by 14, change it everywhere.
- Label everything. North arrow, street name, dimensions, room uses.
- Use the town's words. If the handout says "accessory structure," use that phrase.
- Include photos of existing conditions when they help.
- Keep a copy of everything you submit.
Common reasons applications come back
- Site plan missing distances to property lines.
- Drawings that don't match the dimensions on the form.
- Missing structural details, like footing size or header size.
- Missing product sheets.
- Work that requires a licensed professional's drawings or a licensed trade.
- Zoning issues: a setback or coverage problem the applicant didn't check first.
Filing it: in person, by email or online
Offices differ on how they take applications. Some have online portals where you upload PDFs and pay fees. Some accept email. Some still want paper, signed in ink, delivered to the counter. Ask how your office prefers to receive applications, what file formats it accepts, how fees are paid, and how it will contact you with questions. If you file in person, bring two copies of everything and ask whether someone can look it over for completeness before you leave. If you file electronically, name your files clearly, like "site-plan.pdf" and "framing-plan.pdf", rather than "scan001.pdf". It sounds small. Reviewers notice.
After you file, note the date and any application number. If the office says it will contact you, ask roughly when, and follow up politely if you haven't heard anything by then.
How Sully's filing packet helps
Sully's filing packet is a PDF built from your project: a cover sheet, your project details, a conceptual schematic from your sketch, the rules that apply with their sources, and a checklist of what your office says it wants. When the town posts its own application form, Sully links to it. The packet can be emailed to the office straight from the app.
It's worth being clear about what the packet is and isn't. It organizes the information the office asks for and makes the application easier to complete. It isn't a stamped drawing and doesn't replace an engineer or architect where your town requires one. Your permit office makes the decision.
Check with your local permit office
This post is general guidance, not your town's rule. Requirements, fees and timelines vary by town, and your local permit office makes the final call.
Written by Sully Studios, the team behind PermitLogic AI. How we research and write. Spotted an error? Email [email protected].