Tucson Site Plan for Permit: Setbacks & Utilities

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Planning a shed, garage, casita, patio cover or home addition in Tucson? Your permit application may need a site plan showing the proposed construction, property lines, required setbacks and utility routes.

A clear site plan for a permit in Tucson, AZ helps reviewers determine whether the project fits on the lot and whether it could interfere with existing water, sewer, electric or other utility lines.

Why Might Tucson Require a Site Plan?

A site plan, sometimes called a plot plan, is an overhead drawing of the property. It shows the relationship between the lot, existing buildings, proposed construction and important site restrictions.

The City of Tucson requires permits and inspections for many residential projects, including additions, porches, garages and certain accessory structures. Even when full construction drawings are not required, a site plan may still be needed for zoning review.

For example, the City’s current permit-exemption guidance explains that a shed under 200 square feet with no utility connections may require only a site plan. A shed over 200 square feet, or a shed of any size with utilities, also requires building plans.

Requirements depend on the project, so confirm the necessary documents before submitting your application.

Confirm Whether the Property Is in Tucson or Pima County

A Tucson mailing address does not always mean that the property is inside the incorporated City of Tucson. Some Tucson addresses are located in unincorporated Pima County.

The permitting authority matters because the City and County have different application systems and development regulations.

Pima County recommends using its parcel mapping resources to verify jurisdiction. If the property is inside Tucson city limits, apply through the City of Tucson. If it is in an unincorporated area, contact Pima County Building and Site Development.

What Should a Tucson Permit Site Plan Show?

The required information varies, but a useful residential site plan will commonly include the following details.

Property Boundaries

Show the complete parcel using a clear boundary line. Include the available length of each property line and identify the adjacent street.

Existing Structures

Show the footprint and dimensions of the existing home and other structures on the lot, including garages, sheds, workshops, porches and pool structures.

Proposed Construction

Clearly label the proposed structure or addition. Include its width, length and location in relation to existing buildings and property lines.

Setback Dimensions

Show the shortest distances from the proposed structure to the front, side and rear property lines. Corner lots may also have a street-side setback.

Utility Lines

Identify known water, sewer, electric, gas and other utility routes that serve the property or proposed building. Show whether any utility connection must be extended, altered or relocated.

Driveways and Access

Show the driveway and relevant access areas, particularly when the project is a garage, carport or structure served from an alley.

Easements

Include known utility, drainage and access easements. A utility line and its associated easement are not necessarily located in the same place, so check the recorded property documents.

Scale and North Arrow

An appropriate drawing scale allows the permit reviewer to understand the proposed layout. A north arrow helps orient the property.

How Tucson Setbacks Work

A setback is the required separation between a structure and a property line, street, alley or another regulated feature.

Setback requirements can depend on:

• The property’s zoning district
• The type and use of the proposed structure
• The height of the structure
• Whether the structure is attached or detached
• Whether the lot is on a corner
• The relationship to neighboring residential property
• Applicable historic or neighborhood overlays
• Previously approved development conditions

Do not assume that every Tucson property has the same front, side or rear setback. A shed may be treated differently from a house addition, garage or casita.

The City’s permit-exemption guidance also explains that placing certain small sheds inside a required setback can trigger zoning and building-safety review. A signed neighbor waiver or another planning approval may be necessary.

Approval is not automatic. It is generally easier to identify the correct setback before choosing the final location of the project.

Why Utility Lines Matter

A proposed structure may satisfy its property-line setbacks but still conflict with underground utilities. Foundations, footings, concrete slabs and support posts can interfere with water, sewer, electric, gas or communication lines.

City of Tucson plan-review records show that applicants may be asked to identify utility lines from the property line to the building and show any required service alterations. Utility information can be particularly important for:

• Detached garages and workshops
• Sheds with electricity or plumbing
• Casitas and accessory dwelling units
• Home additions
• Swimming pools
• Outdoor kitchens
• New sewer or water connections

If a new detached building will have electricity, water or sewer service, show the proposed route to the building. The permit office may also require separate plumbing or electrical drawings.

Existing Versus Proposed Utility Lines

The site plan should distinguish existing utilities from proposed connections.

Useful labels may include:

• Existing water meter
• Existing water service
• Existing sewer connection
• Existing electrical service
• Existing gas service
• Proposed utility extension
• Utility line requiring relocation

Do not guess the location of an underground line. Utility routes shown on an old plan may have changed, and privately installed lines may not appear in public records.

Showing Utility Easements

An easement gives a utility provider or another party the legal right to use part of the property. A utility easement may contain underground pipes, cables, overhead lines or access space needed for maintenance.

Easements may be shown on:

• A boundary survey
• The recorded subdivision plat
• The property deed
• A title commitment
• A separately recorded easement document

Do not place a proposed structure inside a utility easement without written confirmation that construction is allowed. The easement holder may need permanent access even if no utility line is currently visible.

Property Lines Must Be Reliable

A fence, block wall, curb or landscaping edge should not automatically be used as the property boundary. These features may be located inside or outside the legal lot line.

Reliable sources can include a recent boundary survey, recorded plat or previously approved site plan. Online parcel maps are helpful for preliminary research, but their boundary lines may only be approximate.

If the proposed structure is close to a setback line, obtain a survey from an Arizona-licensed land surveyor.

Common Tucson Projects That May Need a Site Plan

A site plan may be requested when a project adds a structure or changes the developed area of the property.

• Detached garages
• Sheds and workshops
• Casitas and accessory dwelling units
• Home additions
• Porches and patio covers
• Carports
• Swimming pools and spas
• Retaining walls
• New residential construction
• Projects that add or relocate utility services

A project that is exempt from a full building permit may still need zoning approval or a site plan. Verify the requirements for the specific address and project.

What to Collect Before Ordering

Gathering accurate information helps avoid delays and revisions.

Please provide:

1. The complete Tucson property address
2. The applicable City or County jurisdiction
3. A survey, plat or previous site plan, if available
4. The dimensions of the proposed structure
5. The preferred project location
6. Distances from the project to property lines
7. Distances between existing and proposed structures
8. Known setback requirements
9. Known utility lines and easements
10. Utility meter and connection locations
11. Property photographs
12. A simple project sketch
13. Any permit checklist or correction notice

Your sketch does not need to be professionally drawn. Clearly identify the street, existing home, proposed structure and known utility routes.

How USA Site Plans Can Help

USA Site Plans prepares clean residential site plans using available property records, customer measurements and project information.

Your Tucson plan can show:

• The property outline and available dimensions
• The existing home and accessory buildings
• The proposed structure or addition
• Front, side and rear setbacks
• Known utility lines and connections
• Known easements
• Adjacent streets and driveways
• Labels, scale and north arrow

Our standard drafting service offers a 24-hour turnaround after complete information has been received. If a permit reviewer requests a correction to information shown on the plan, send us the written comments so we can review the requested change.

Frequently Asked Questions

Does a small Tucson shed need a site plan?

It may. The City states that a shed under 200 square feet without utility connections may require only a site plan. Larger sheds or sheds with utilities also require building plans.

Do utility lines need to appear on the site plan?

Utility locations may be required when they serve or affect the proposed building. City plan-review comments commonly request lines from the property boundary to the building and any necessary alterations.

Does calling Arizona 811 replace the site plan?

No. Arizona 811 helps locate participating underground facilities before excavation. The permit site plan explains the proposed project to reviewers. These serve different purposes.

Can I build over a sewer or water line?

Do not assume that construction over a utility is allowed. Contact the permit office and the appropriate utility provider. The project may need to be moved or the utility may need an approved relocation.

Can USA Site Plans locate underground utilities?

No. We can illustrate reliable utility information supplied by the customer, utility provider or official records. Physical utility locating must be handled separately.

Can the plan show both existing and proposed utility routes?

Yes. Clearly identify which routes already exist and which connections are proposed. Provide available measurements, records and utility information.

Order Your Tucson Site Plan

A clear site plan can help permit reviewers understand where your project will be built and how it relates to property boundaries, setbacks and utilities.

Send us your property documents, project dimensions and known utility information. We will convert them into a professional drawing suitable for many straightforward residential permit applications.

Official Tucson Resources

• City of Tucson Residential Permits
• Tucson Permit Exemptions
• Tucson Casita and ADU Guidance
• Pima County Property and Jurisdiction Resources
• Arizona 811 for Homeowners

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