A shed feels like the softest project on the property.
No kitchen. No bedroom. Just a box for the mower and the Christmas bins. Then you find out your county cares about square footage, height, setbacks from the property line, and whether you ran a buried cable out there for a shop light.
Accessory structures are local animals. Size cutoffs you see on model-code charts or in another city’s FAQ are patterns, not a national free pass. Treat every number below as something to verify for your address.
For the broader permit question, see Do I Need a Building Permit? The size limits, setbacks and power runs that apply to sheds are below.
What counts as a shed (and what suddenly doesn’t)
Departments usually group sheds under accessory structures or accessory buildings. A prefab metal kit on skids, a site-built wood shed on a slab, and a “studio shed” with insulation and a mini-split can land in three different review buckets.
Ask yourself:
- Is it temporary or permanent?
- Is it on skids, blocks, a gravel pad, or a poured foundation?
- Will anyone work in it for long stretches, or sleep in it “just on weekends”?
- Are you adding plumbing, HVAC, or a full electrical panel?
The moment a shed starts acting like a tiny house or home office, expect the rules to tighten. Calling it a shed on the order form does not control how the zoning office classifies it.
Building a chicken coop instead of a shed? Our chicken coop permit guide covers the building permit and the hen license.
Planning a greenhouse instead? Our greenhouse permit guide covers hoop houses, kits, and attached lean-tos. Thinking about a shipping container for storage instead? See our shipping container permit guide.
Size limits: model-code patterns vs. your ordinance
Many cities exempt very small accessory buildings from a building permit—sometimes with a square-footage ceiling, sometimes with a height ceiling, sometimes both. Others want a permit for almost anything with a roof. A few exempt the building permit but still require a zoning clearance so setbacks get checked. Our Do I need a permit? checker gives a quick first answer for your shed size and height.
Model residential codes published through the International Code Council are a common baseline jurisdictions adopt and amend (ICC residential codes). Do not order a 12×20 kit because a blog said “under 200 square feet is fine everywhere.” That sentence has ruined many weekends.
Boise’s homeowners’ guide is one example of a city explaining accessory and homeowner projects in public language (City of Boise homeowners’ guide). Anne Arundel County’s “Do I Need a Permit?” page is another illustration of a county trying to answer threshold questions up front (Anne Arundel County: Do I Need a Permit?).
Read your own county’s twin page before you click “buy now” on the shed retailer site. When you call, give dimensions, eave height, ridge height, and foundation type. “It’s a small shed” is not a measurement.
Ground-level playhouses are often measured against the same size thresholds; see treehouse and playhouse permits. Some cities skip square feet entirely: Charlotte sorts sheds by whether any dimension is over 12 feet, as our Charlotte building permits guide explains.
Setbacks: the quiet project-killer
Even when a building permit is not required, zoning setbacks often still apply. Rear yard, side yard, distance from the house, and distance from easements all show up. Corner lots and alleys change the math.
A common mistake is putting the shed where the ground happens to be flat, a foot or two off the fence, and only then finding out the side-yard setback is several feet. Moving a finished shed is not a two-hour job.
Before delivery day, at minimum:
- Find the property pins or a recent survey if you have one
- Ask planning staff for accessory-structure setbacks for your zoning district
- Check for drainage, utility, or access easements along the back line
- Mark the footprint with spray paint and measure again
Make a quick site sketch before you buy
Use a survey or other reliable property document if you have one. Draw the lot, house, fence, driveway, and proposed shed. Mark dimensions and any known utility or drainage easements. A rough sketch helps you ask the permit office a specific question; it is not a substitute for a required survey or scaled site plan.
| REAR PROPERTY LINE | ||
| Utility or drainage easement Keep clear unless the responsible authority confirms otherwise | Possible shed location Verify setback and lot coverage locally | Side setback Measure from the legal lot line |
| HOUSE, DRIVEWAY, TREES & OTHER STRUCTURES | ||
Illustration only. It does not show real dimensions or approve a location.
Utility easements deserve respect. You may “own” the yard and still be barred from placing a permanent structure over a buried storm drain or power company easement. A permit does not necessarily remove an easement holder’s access rights; Fort Worth, for example, notes that a city permit does not grant access to utility easements (Fort Worth utility guidance, PDF).
Call 811 before any digging
Even a "simple" shed usually involves some digging: leveling a gravel pad, setting piers, or driving ground anchors. Calling 811 first is free. It connects you to your state's one-call center, which alerts the utility operators so they can mark buried gas, electric, water, sewer, and communications lines. The federal pipeline safety agency's Call Before You Dig page says state laws generally require the call 48 to 72 hours before you dig, and that it's your job to wait for the marks and dig carefully around them. Check your own state's notice period, and make the call before the delivery date is locked in.
What real shed setback rules look like
Setbacks are where shed plans most often go wrong, and the numbers change from city to city. Here are three published examples:
| City | Where a shed can go | Also worth knowing |
|---|---|---|
| Salt Lake City | Not in the required front yard. In a side yard it must be behind the house. In side and rear yards, at least 1 foot from the lot line (some districts differ), at least 4 feet from any part of your house (eaves included), and at least 10 feet from a house on the next lot. In a corner yard, 20 feet from the public sidewalk. (SLC accessory buildings handout, PDF) | Accessory buildings can't cover more than 50% of the area between the back of the house and the rear lot line. |
| Portland, OR | Zoning setbacks, building coverage, and floor-area limits apply even when no building permit is needed. (Portland garages, sheds, and accessory structures) | On parcels of 2 acres or more, a non-habitable shed up to 400 square feet can skip the building permit if it's at least 20 feet from all property lines and other structures. |
| Denver, CO | In Former Chapter 59 zone districts, every new or relocated shed needs a zoning permit. (Denver residential sheds) | A floodplain lot, or digging within two feet of the sewer line, may require a sewer use and drainage permit. |
None of these numbers carries over to your town, but your own city's handout will ask for the same kinds of measurements.
Power lines overhead, and getting the shed in
Look up as well as down. Salt Lake City's handout says the power company has to approve an accessory building within 10 feet of a power source or under a power line (SLC handout, PDF). Your utility may have its own clearance rules, so ask before you pick a spot under the service drop.
Then walk the delivery route. Pre-built sheds often arrive on a truck or trailer, so check gate width, overhanging branches, soft or sloped lawn, septic or sprinkler lines along the path, and whether the crew needs to drive over a neighbor's property. Ask the dealer what access they need before you pay a deposit.
When the dealer says “no permit needed”
Shed sellers often say their models are permit-free. That may be true for the building code in some towns, but the dealer can’t approve your location, your setbacks, or your HOA’s rules. Ask what the claim is based on, and get your own answer from the city or county in writing. Our HOA approval vs. city permit guide explains how the two reviews differ.
HOA rules are not optional just because the city said yes
Homeowner associations often regulate shed materials, colors, roof pitch, and whether sheds are allowed at all. A city zoning clearance does not override a recorded covenant. Read the HOA design guidelines and get written approval if your community requires it. Keep that email with your permit packet.
Neighbor politics matter too. A shed that casts shade on a garden bed or blocks a view can create conflict even when it is legal. A quick conversation beats a formal complaint.
Foundations, wind, and “it came with a wood floor”
Prefab sheds on skids are popular because they can be moved. Some departments treat them differently from structures on permanent foundations. Others care more about size and use than about skids vs. slab. Anchoring requirements in high-wind regions are real. Ask whether tie-downs or engineered anchoring are required for your wind exposure.
If you pour a slab, confirm whether the slab itself needs inspection before the walls go up. That sequence surprises DIYers who schedule the concrete truck and the shed delivery for the same morning.
Electrical to the shed is a separate question
This is where soft projects get hard. A solar shed light that never touches house wiring is one thing. A buried conduit run from the main panel for outlets and lighting is another. Many jurisdictions require an electrical permit for that run—even when the shed structure itself was exempt from a building permit.
Questions to ask the electrical desk:
- Do I need a permit to extend a circuit or feeder to an accessory structure?
- Does the work require a licensed electrician?
- What burial depth and conduit type do you expect for my soil and load?
- Will the shed need its own disconnect or subpanel?
- Are GFCI and weatherproof covers required for receptacles?
Some cities cap what an exempt shed may have. Denver, for example, lets an exempt shed have at most two lights and two receptacles, and only with a valid electrical permit (Denver residential sheds). A buried line from the house is more digging, so add it to your 811 request.
Do not splice an extension cord through a window and call it done. Inspectors and insurance adjusters both recognize that pattern.
Chicago’s homeowner-oriented permit guide shows how one city explains multi-trade work to residents (City of Chicago Guide to Permits (PDF)). New York’s DOB page on whether owners need a permit is another public framing of owner obligations in a complex market (NYC DOB: Do I Need a Permit?).
Los Angeles LADBS outlines permit-application process information for owners navigating intake (LADBS permit application information).
Plumbing and “workshop with a sink”
A utility sink or bathroom in a shed changes everything. Supply, drain, and vent lines can trigger plumbing permits and, in some places, impact fees or ADU-like review. If you only want a hose bib on the outside wall fed from an existing yard line, still ask—hose bibs are not always freebies.
Floodplains and low lots
Accessory structures in flood hazard areas can face anchoring, flood openings, or elevation rules. FEMA’s homeowner FAQ packet is a readable primer on flood-related homeowner questions (FEMA homeowner FAQ (PDF)). Your floodplain administrator decides how that applies to a shed on your parcel.
A clean way to decide before you buy
Write one paragraph:
“[Size] shed, [height], [skid/slab], located [X] feet from rear and side property lines, used for storage only / used as workshop. Electrical: none / lighting and receptacles from house panel. Plumbing: none.”
Email or call planning and building with that paragraph. Ask specifically whether you need a building permit, a zoning clearance, an electrical permit, or all three. Save the reply.
If you are financing a larger property rehab that happens to include outbuildings, keep lender documentation in sync with what the city permitted. HUD’s Single Family 203(k) materials show how some rehab loans expect clear scopes of work (HUD 203(k) overview).
Questions to send the permit office
- Does this shed need a building permit at my address?
- Does the proposed location meet zoning setbacks and lot-coverage limits?
- Are there easements or utility clearances I need to preserve?
- What should my site plan include, and is a survey required?
- Do the foundation or planned utilities need separate permits?
- Should I wait for written approval before ordering or installing the shed?
Before you place the order
- ☐ I confirmed which local office serves this property.
- ☐ I checked building-permit requirements and zoning separately.
- ☐ I reviewed the property lines and any recorded easements.
- ☐ I measured the shed footprint, height, and distance to nearby structures.
- ☐ I checked drainage, flood, tree, and utility constraints.
- ☐ I know which plans, approvals, and inspections the office requires.
FAQ: shed permits and placement
Can I put a shed right on the property line?
Usually not. Most cities set a minimum distance. Salt Lake City, for example, requires at least 1 foot from side and rear lot lines in its single- and two-family zones, with a rear-yard exception when the shed shares a common wall with an accessory building on the next lot (SLC handout, PDF). Check your own zoning code before you assume the fence line is fair game.
Do I need to call 811 if the shed just sits on blocks?
If you’ll dig at all, for leveling, gravel, anchors, or piers, call first. The call and the marking are free (PHMSA Call Before You Dig).
Can a shed go in the front yard?
In many cities, no. Salt Lake City doesn’t allow accessory buildings in the required front yard and says they must be set back at least as far as the house. Corner lots have their own limits.
Bottom line
Sheds are simple until they are not. Size cutoffs, setbacks, HOA rules, and electrical runs each fail independently. Clear one and you can still trip on another.
PermitCove is an independent guide for homeowners—not a government agency and not your permit counter. See the disclaimer.
Measure the yard. Measure the shed. Then make the call. The mower can wait one more week in the garage.
Related guides
- HOA approval vs. city building permit
- Austin building permits: decks, sheds and fences
- Phoenix building permits: decks and sheds
- Demolition permits for houses, garages and sheds
- Protected tree removal permits
- Driveway curb cut and right-of-way permits
- Retaining wall permits and the 4-foot rule
- Swimming pool and spa permits
- Permit-free limits by city: sheds, fences, decks and walls
Official sources
- City of Boise homeowners’ guide
- Anne Arundel County: Do I Need a Permit?
- City of Chicago Guide to Permits (PDF)
- NYC DOB: Do I Need a Permit?
- LADBS permit application information
- FEMA homeowner FAQ (PDF)
- HUD 203(k) overview
- Salt Lake City: Accessory buildings for residential zoning (PDF)
- Portland.gov: Garages, sheds, and accessory structures
- Denver CPD: Residential sheds
- City of Fort Worth: Utility easement guidance (PDF)
- U.S. PHMSA: Call Before You Dig
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