What is the largest size shed without planning permission?

Author: Mariane Homenick  |  Last update: Saturday, June 6, 2026

After putting it to the test in various backyards and gardens, we've found that the largest shed without permit is around 120 square feet. This size limit seems to be a sweet spot for many local authorities, allowing homeowners to add a functional structure without overstepping regulatory boundaries.

What's the biggest shed I can have without planning?

So, how big can you go without planning permission? Your shed must be single storey. It mustn't cover more than 50% of your garden. The floor area mustn't be more than 15m2 (although you might be able to get away with up to 30m2 if other conditions are also met).

How big is a 200 sq foot shed?

Built for the backyard enthusiast, a 10×20 200 sq ft shed is the perfect size for storing all of your lawn and garden equipment. It's also big enough to accommodate a workbench or a small seating area, making it the ideal space for tinkering on projects or taking a break from the sun.

How big can you build without a permit in Oregon?

The following residential improvements do not require a building permit: Building an accessory structure, such as a shed or garage, that is nonhabitable, detached, one-story, less than 200 square feet or less than 15 feet measured from the floor to the average height of the roof.

Do I need a permit for a shed in NC?

For any accessory building, such as a shed, with any dimension exceeding 12 feet, The North Carolina State Building Code requires that a permit be issued, though a 12'x12' shed doesn't normally need a permit. Each county or local municipality manages this process differently and with varying fee structures.

What is the biggest size shed without planning permission?

What happens if you build without a permit in NC?

If you fail to get a permit for work that requires it, you can be fined. You may be forced to remove a building or tear out completed work.

What happens if you get caught building a shed without a permit?

For example, if you build without a permit in California, homeowners and contractors are liable, and both need to pay fines. According to California Contractors State License Board (CSLB), contractors must pay up to $5,000 per violation and are subject to disciplinary action.

How close to a house can a shed be?

Generally, your shed should be at least ten feet away from your home.

Do I need a permit to put drywall in my garage?

You'll likely need a permit since this project may require soil grading to avoid drainage issues. Repairing your floor may be more cost-efficient than replacing it if grading is necessary. No permit may be required to hang drywall on exposed wooden wall studs in your garage.

Is it legal to live in a shed in Oregon?

The state of Oregon has many areas that allow tiny homes, so if you plan to use your shed as a place of residence, you'll need to comply with your area's tiny home regulations rather than shed permit requirements.

Is a 12x16 shed too big?

A 12x16 shed gives you a lot of room for storage. A four-wheeler, ATV, riding mower, or similar equipment will fit easily with room to spare. Motorcycles and small vehicles also fit, depending on the design and height of the shed.

How big is a 40x60 shed?

A 40x60 metal building is a solid choice for any property and provides 2,400 square feet of customizable space to satisfy many end uses, including shops, garages, barns, and even modern homes.

What is the largest shed size without a permit?

Please note, Sheds and/or Structures under 120 square feet do require a Planning Permit.

Can you put a shed right next to a fence?

From our experience at Homestead Supplier, maintaining a minimum distance of at least 3 feet between your shed and the fence is crucial. This space ensures proper maintenance, ventilation, and compliance with local regulations.

What is the largest shed without a foundation?

Typically, any shed larger than 6×8 or 8×8 is going to require a foundation. However, a foundation is a good idea even for small sheds, because the right foundation, installed correctly, will protect your shed and extend the life and useability.

Can I insulate my garage without a permit?

When building a new structure, obtaining a building permit for insulation is almost always necessary. This is part of a broader requirement where permits are needed for various aspects of construction, including excavation, foundation, framing, electrical, plumbing, and finishing.

Do you need a permit for floating deck?

Floating Deck Codes and Regulations

You likely won't need a permit for your floating deck if your project meets the following criteria: The deck takes up fewer than 200 square feet. The deck is not more than 30 inches above the ground. The deck is not attached to your house.

What happens if you put up a fence without a permit?

Building a fence without a permit – Violations and penalties

Usually the fine is $100 per day, for each day the fence exists without a permit. Also, if a fence is installed and does not comply with the codes of your city, the local government will require you to remove it.

What is a 120 sq ft shed?

If the shed is 10×12 on the outside, then the whole shed would be 120 sq feet.

How much clearance does a shed need?

For easy access during installation and maintenance, your garden shed should have a clear space of a minimum of 18” around all sides of the structure. When considering measurements, it's also important to allow for any roof overhang or door/window opening space in the design of the shed which will require extra space.

What's the biggest shed without planning permission?

How big can I build a shed without planning permission?
  • The shed must occupy less than 50% of the total area occupied by your property.
  • The total floor area of the shed doesn't exceed 15m2.
  • The height of the eaves of the shed doesn't exceed 2.5 metres and the building is single storey.

How big is a 200 square foot shed?

Large enough at 8 feet tall to hold 1600 ft. ² of your junk. It could be 10' x 20' or almost 15 x 15' in dimensions. Go buy yourself a cheap tape measure and measure it out in a larger room in your house to get a visual idea of the capacity.

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