Raleigh Deck Permit Site Plan Requirements

Example of a Raleigh deck site plan showing the proposed deck, stair location, existing house, property boundaries, setback dimensions, and surrounding lot layout.

A new deck can add valuable outdoor living space to a Raleigh home, but its location must be considered before posts, footings, beams, or stairs are installed.

The City needs to understand where the deck will connect to the house, how far the platform and stairs will extend into the yard, and whether the proposed construction conflicts with property lines, setbacks, easements, utilities, septic systems, drainage features, or other structures.

A clear Raleigh deck permit site plan brings this information together in one overhead drawing. It shows the complete lot, the existing house, the proposed deck, stair direction, setback measurements, streets, rights-of-way, and other features that may affect approval.

This guide explains what Raleigh asks applicants to submit, how deck and stair setbacks are reviewed, what should appear on the site plan, and how the project may affect stormwater and the overall lot layout.

For a broader introduction to local permit drawings, visit our

Raleigh site plan for permit guide
.

Do you need a permit for a deck in Raleigh?

Raleigh has a specific residential permit process for constructing a deck, screened porch, or balcony. Applicants are directed to complete a Residential Permit Application and provide a site plan showing the proposed work on the property.^[1]

A deck project may involve several types of review:

• Zoning review: Confirms the deck’s location, required setbacks, encroachments, and relationship to streets and property lines.
• Building-code review: Evaluates the footings, posts, beams, joists, ledger, stairs, guards, handrails, and structural connections.
• Stormwater review: Evaluates impervious surface, drainage easements, streams, floodplain conditions, and runoff changes.
• Historic review: May apply when the house is in a Raleigh Historic District or is designated as a Raleigh Historic Landmark.
• Wake County review: May apply when the property is served by a private well or septic system.

The City advises applicants to resolve required variances, historic approvals, septic approvals, and similar prerequisites before submitting the residential permit application.^[1]

What if you are replacing an existing deck?

Replacing an existing deck does not automatically eliminate permit or site-plan requirements.

Review may still be needed when:

• The deck is being rebuilt from the ground up
• The footprint will become larger
• The height will change
• The stairs will move
• The framing or footing system will change
• A roof, screened enclosure, or pergola will be added
• The deck was constructed without an earlier permit
• The replacement affects a setback, easement, or septic area

The site plan should clearly identify what will remain, what will be removed, and what will be constructed.

What is a deck permit site plan?

A deck site plan is a scaled overhead drawing showing how the proposed deck fits on the property.

It is different from the structural deck plans:

• Site plan: Shows where the deck and stairs will be located on the lot.
• Framing plan: Shows joist direction, spacing, beams, girders, posts, spans, and structural dimensions.
• Foundation plan: Shows the footing, pier, post, or foundation locations and sizes.
• Elevations: Show the deck height, stairs, guards, handrails, grade, roof, and exterior appearance.
• Construction details: Show the ledger attachment, flashing, connectors, fasteners, lateral-load connections, and other structural components.

A site plan does not replace the structural drawings. Its primary purpose is to explain the project’s placement and its relationship to the complete property.

Our

site plan for permit guide

explains how this type of drawing supports zoning and building review.

What should a Raleigh deck site plan show?

The City instructs deck applicants to provide a site plan indicating the proposed work. Raleigh also recommends using its Residential Tier One Site Plan Checklist as a guide when preparing the submission.^[1]

1. Property boundaries and lot dimensions

Show the complete property boundary, including:

• Front property line
• Rear property line
• Left-side property line
• Right-side property line
• Lot width and depth
• Irregular boundary segments where applicable

Deck setbacks should be measured from the legal property lines—not automatically from a fence, hedge, driveway, sidewalk, curb, or tree line.

These visible features may not follow the recorded property boundary. When the property corners cannot be established from reliable documents or monuments, a North Carolina licensed land surveyor may be needed.

Our

setbacks and zoning guide

explains why accurate property boundaries matter before selecting a project location.

2. Existing house footprint

Show and label the complete footprint of the existing house.

The plan should identify the wall where the deck will connect and show relevant features such as:

• Exterior door leading onto the deck
• Nearby windows
• Existing porches and landings
• Bay windows and projections
• Attached garages
• Roof overhangs
• Basement entrances
• Mechanical equipment
• Existing stairs and walkways

Showing only the rear wall can make it difficult to evaluate how the deck relates to the rest of the house and property.

3. Proposed deck footprint

Draw the complete deck platform and label it as proposed.

Include:

• Overall deck length
• Overall deck width
• Shape of the platform
• Distance from the deck to the house corners
• Any multiple levels or step-down sections
• Built-in benches or permanent features where relevant
• Deck height above the surrounding grade

For an L-shaped, wraparound, curved, or multi-level deck, provide enough individual dimensions to define the complete footprint.

4. Setbacks to property lines

Show separate measurements from the closest part of the deck to every relevant property line.

These may include:

• Rear-yard setback
• Left-side setback
• Right-side setback
• Primary-street setback
• Side-street setback on a corner lot
• Distance to an alley or right-of-way

Do not show only one setback. A rear deck may comply with the rear requirement while extending too close to a side or street-facing boundary.

5. Complete stair footprint

The stairs should appear on the site plan—not only on the construction drawings.

Show:

• The side of the deck containing the stairs
• The direction in which the stairs descend
• Approximate stair width
• Length of the stair flight
• Intermediate landings where applicable
• Bottom landing location
• Where the stairs meet finished grade
• Setback from the stairs to the property line

A stair flight can project several feet beyond the platform. A deck that appears to fit comfortably may become noncompliant once the full stairs and landing are included.

6. Existing accessory structures

Show existing structures and major improvements, including:

• Detached garages
• Carports
• Sheds
• Gazebos
• Pergolas
• Pools and spas
• Retaining walls
• Existing decks and patios
• Outdoor kitchens

These features may affect available yard space, construction access, drainage, impervious-surface calculations, and the practical location of the stairs.

7. Street and right-of-way information

Label all adjoining streets and rights-of-way.

On a corner lot, show both street frontages. Raleigh’s rules distinguish between the primary street and side street, and those classifications can affect the available setback area.

The public sidewalk, curb, and pavement edge should not automatically be treated as the property or right-of-way line.

8. Easements and utilities

Show recorded or known easements that affect the project area.

Common examples include:

• Drainage easements
• Public utility easements
• Sewer easements
• Waterline easements
• Access easements
• Greenway easements
• Private utility corridors

Deck footings should not be placed inside an easement without confirming that construction is allowed.

Also identify known utility features such as:

• Water meter
• Sewer cleanout
• Storm drain inlet
• Manhole
• Utility pole
• Overhead lines
• Underground service routes
• HVAC equipment

9. Septic system and private well

When a property is served by an onsite wastewater system, Raleigh requires Wake County review of the proposed deck or porch footprint.

The deck may not interfere with:

• Septic tank
• Drain field
• Wastewater repair area
• Private well
• Required separation distances

The City states that the site plan must be approved by Wake County when the property uses an onsite wastewater system.^[1]

10. Drainage and environmental features

Show known site features that could affect stormwater review, including:

• Drainage easements
• Streams and riparian buffers
• Flood hazard areas
• Flood-prone soils
• Stormwater infrastructure
• Existing drainage swales
• Retaining walls
• Low areas near the house

Raleigh Stormwater asks for existing site conditions, proposed changes, existing and proposed impervious-surface calculations, and known streams, floodplains, and easements to be shown on the survey or plot plan.^[3]

11. North arrow, scale, and project labels

Include:

• North arrow
• Graphic or written scale
• Property address
• Drawing date
• Clear existing and proposed labels
• Readable dimensions

All information should remain legible when the drawing is saved as a PDF and uploaded through Raleigh’s Permit and Development Portal.

Raleigh deck setback requirements

A deck does not always need to remain behind the same setback line as the main wall of the house.

Raleigh’s Unified Development Ordinance contains specific setback encroachments for decks, porches, patios, terraces, and stoops.^[2]

Decks more than one foot above grade

A porch, deck, patio, terrace, or stoop more than one foot above grade may generally:

• Extend up to 12 feet into a required side or rear setback; and
• Extend up to 9 feet into a required primary-street or side-street setback.

However, the structure must generally remain at least:

• 3 feet from a side or rear property line; and
• 3 feet from a street property line.

These are encroachment rules—not universal deck setbacks. The actual available deck area depends on the principal building setback that applies to the specific property.

Decks one foot or less above grade

Raleigh’s UDO states that patios, terraces, and decks one foot or less above grade may generally be constructed:

• At least 0 feet from a side or rear property line; and
• At least 3 feet from a street property line.

This zoning allowance does not eliminate other restrictions. Easements, drainage features, utilities, building-code requirements, septic systems, overlays, and recorded property conditions can still affect the location.

How deck stairs affect the setback

The deck platform and the stairs are not always treated the same way under Raleigh’s setback-encroachment rules.

Raleigh’s UDO states that an unenclosed stairway may generally extend up to 4 feet into a required side or rear setback, provided that it remains at least 5 feet from the vertical plane of a property line.^[2]

This can make stair direction an important design decision.

For example, stairs descending directly toward the rear boundary may not fit even where the main deck platform complies. Rotating the stairs so they run parallel to the house or property line may create a more workable layout.

Before finalizing the deck design, check:

• Distance from the platform to the boundary
• Full horizontal stair run
• Bottom landing depth
• Required distance from the stair to the property line
• Gate and walkway locations
• Existing patio or driveway
• Drainage route at the foot of the stairs
• Available headroom where stairs pass beneath another structure

Why stair details matter on the construction plans

The site plan shows the location and direction of the stairs. The structural plans and elevations should provide the construction details.

These commonly include:

• Total rise from grade to deck surface
• Number of risers
• Riser height
• Tread depth
• Stair width
• Stringer size and spacing
• Landing dimensions
• Handrail location
• Guard location
• Connection at the deck framing
• Support or footing at the bottom of the stairs

North Carolina’s currently effective building-code framework remains the 2018 North Carolina codes. Decks are specifically directed to the residential code’s wood-deck provisions, and the applicable amendments address stair guards, handrails, openings, and other safety details.^[6][7]

Deck guards and handrails

The article illustration notes that a deck 30 inches or less above grade may not require a guard. This is a simplified visual note—not a complete code determination.

The permit reviewer will consider the actual vertical drop, nearby grade, stairs, landings, and other conditions.

Where guards are required, North Carolina’s residential-code amendments generally identify:

• A minimum guard height of 36 inches at open-sided walking surfaces
• A minimum stair-guard height of 34 inches measured from the stair nosings
• A handrail height generally between 34 and 38 inches
• Opening limitations intended to prevent passage through the guard

The exact guard and handrail design should be shown on the deck elevations and structural details rather than relying on a note placed only on the site plan.^[7]

Covered decks, screened porches, and pergolas

Adding a roof changes the project significantly.

Raleigh specifically requires elevations for screened porches and any roofed structure, including covered decks and covered patios. The elevation drawings must show wall heights and grade levels, including average grade information.^[1]

A roofed project may also affect:

• Principal-building setbacks
• Building coverage
• Impervious-surface calculations
• Footing and foundation design
• Roof drainage
• Structural loads
• Electrical work
• Window and door clearances

Where the project includes an open shade structure rather than a solid roof, review our

Raleigh pergola permit site plan guide
.

A deck intended to support a future screened porch, sunroom, or roof should be designed for the complete future load before construction begins.

Does a deck count as impervious surface?

Raleigh Stormwater asks residential applicants to list the deck separately in the existing and proposed impervious-surface calculations shown on the survey or plot plan.^[3]

How the deck is ultimately classified can depend on its design and the surface beneath it.

Important factors may include:

• Spacing between deck boards
• Whether the deck is covered
• Whether the area below is concrete, gravel, soil, or landscaping
• Whether water can infiltrate naturally
• Whether gutters or downspouts concentrate runoff
• Whether a new patio is being installed beneath or beside the deck

Do not assume that every open deck contributes zero impervious surface or that every deck is counted the same way. Show the project accurately and allow the stormwater reviewer to determine the applicable treatment.

When a Lot Grading Plan may be required

Raleigh states that projects adding 800 square feet or more of impervious surface—or concentrating runoff into a channel, pipe, or downspout—must meet the City’s Lot Grading Plan requirements.^[1]

Even a smaller project should avoid:

• Directing water toward a neighbouring property
• Blocking an established drainage swale
• Creating a low area beside the house
• Discharging a downspout onto a stair landing
• Covering a drainage inlet
• Placing footings inside a drainage easement

Lot layout and building coverage

The site plan should show the full property rather than presenting the deck as an isolated improvement.

A complete lot-layout review may consider:

• Existing house footprint
• Proposed deck footprint
• Covered portions of the deck
• Existing garage, shed, or carport
• Patios and other hardscape
• Driveway and parking area
• Pool or spa
• Setbacks and encroachments
• Impervious-surface limits
• Residential infill standards
• Overlay-district requirements

The 40% maximum lot-coverage figure shown in the article image is an illustration only. Raleigh’s applicable building-coverage or impervious-surface limit depends on the zoning district, development option, lot status, overlay, and other property-specific regulations.

Confirm the property’s zoning and development standards before using a sample percentage to size the deck.

Corner lots and street-facing yards

Corner lots require additional attention because two property lines may face streets.

Raleigh uses rules to determine which frontage is the primary street and which is the side street. The required setback and permitted deck encroachment can depend on this classification.^[2]

A site plan for a corner property should show:

• Both street names
• Both street rights-of-way
• Primary-street designation
• Side-street designation
• Existing house orientation
• Deck distance from both street property lines
• Stair direction
• Driveway and sight-distance considerations

Historic properties and special approvals

A Certificate of Appropriateness may be required when the house is located in a Raleigh Historic District or is designated as a Raleigh Historic Landmark.

Historic review may consider:

• Deck location
• Visibility from the street
• Size and scale
• Railing design
• Materials
• Attachment to the historic building
• Removal of historic features

The City advises applicants to obtain required historic approval before submitting the permit application.^[5]

What other drawings may be required?

The permit package normally includes more than the site plan.

Depending on the design, the submission may need:

• Residential Permit Application
• Deck framing plan
• Footing and foundation plan
• Ledger and attachment details
• Beam and joist information
• Post sizes and spacing
• Stair details
• Guard and handrail details
• Front and side elevations
• Roof plans for covered decks
• Engineering for non-prescriptive construction
• Owner Exemption Affidavit when the homeowner acts as the builder
• Wake County approval for well or septic properties
• Certificate of Appropriateness for applicable historic properties

Raleigh requires the application forms and supporting documents to be attached as PDFs when the project is submitted through the Permit and Development Portal.^[1]

Common Raleigh deck site-plan mistakes

Applications may be delayed when the site plan does not clearly explain the complete project.

• Showing only the deck and not the full property
• Failing to show the deck’s length and width
• Providing only one setback measurement
• Measuring from a fence instead of the property line
• Leaving the stairs off the site plan
• Ignoring the bottom stair landing
• Applying the platform setback to the stairs without checking the stair rules
• Failing to show deck height above grade
• Leaving existing structures off the drawing
• Omitting the street or right-of-way
• Failing to show easements
• Leaving septic or well information off the plan
• Ignoring streams, drainage easements, or floodplain conditions
• Failing to include impervious-surface calculations where required
• Using the sample dimensions in an illustration as confirmed requirements
• Showing a covered deck without elevations
• Submitting a blurry satellite image without usable dimensions
• Using text that becomes unreadable in the final PDF

Read our guide on

how to reduce site-plan corrections and permit delays
.

What to provide when ordering a Raleigh deck site plan

Collecting accurate information before drafting begins can reduce revisions and speed up permit preparation.

Useful information includes:

• Complete property address
• Existing survey or recorded plat, where available
• Proposed deck length and width
• Deck height above grade
• Preferred stair location and direction
• Approximate stair width
• Measurements to every property line
• Existing house dimensions
• Location of doors and windows near the deck
• Location of garages, sheds, pools, patios, and other structures
• Street and right-of-way information
• Known easements and utilities
• Septic-system and well information
• Known drainage features
• Photos of the house and proposed construction area
• Information about a future roof, screen enclosure, pergola, or hot tub
• Any comments already received from Raleigh reviewers

Homeowners outside Raleigh can also review our

North Carolina site plan for permit guide
.

Frequently asked questions

Does Raleigh require a site plan for a deck permit?

Yes. Raleigh’s deck-permit guidance directs applicants to submit a site plan showing the proposed work on the property along with the Residential Permit Application and supporting documents.

How close can a deck be to a Raleigh property line?

A deck more than one foot above grade may generally encroach into a required side or rear setback but must remain at least 3 feet from the property line. Low decks one foot or less above grade may have different allowances. Easements, overlays, septic systems, drainage, and site-specific conditions can require greater separation.

Do the stairs need to be shown on the site plan?

Yes. The stair direction, stair footprint, and bottom landing can affect setbacks and the usable yard. The stairs should also appear in greater detail on the structural plans and elevations.

Can the stairs extend into a setback?

Raleigh’s UDO generally allows an unenclosed stairway to extend up to 4 feet into a required side or rear setback, provided the stair remains at least 5 feet from the property line.

Can a low deck be built directly beside a side or rear property line?

Raleigh’s general zoning rule allows a deck one foot or less above grade to be as close as 0 feet from a side or rear property line. This does not override easements, utilities, drainage restrictions, septic requirements, recorded conditions, or other applicable rules.

Does a deck require a guard when it is over 30 inches high?

The 30-inch note in the illustration is a simplified summary. The building official will evaluate the actual vertical drop, surrounding grade, stairs, landings, and applicable North Carolina Residential Code provisions. Guards and handrails must be detailed on the construction plans where required.

Does an uncovered deck count as impervious surface?

The answer depends on the deck design and the surface beneath it. Raleigh asks applicants to show the deck as a separate line item in the existing and proposed impervious-surface calculations so stormwater staff can evaluate it.

Can a deck be built over a septic drain field?

A deck or screened porch may not interfere with the septic system, repair area, or required well setbacks. Properties with onsite wastewater systems require review and site-plan approval from Wake County.

Does a covered deck require additional drawings?

Yes. Raleigh requires elevations for any structure with a roof, including covered decks and patios. Structural plans must also address the roof loads, posts, beams, foundations, and connections.

Can a site plan replace the deck framing plans?

No. The site plan shows where the deck will be built. Separate structural drawings explain how the footings, posts, beams, joists, ledger, stairs, guards, and handrails will be constructed.

Order a Raleigh deck permit site plan

A well-prepared deck site plan helps Raleigh reviewers understand where the platform will sit, how far it is from the property lines, where the stairs will meet the ground, and whether the project conflicts with easements, utilities, drainage, septic systems, or other structures.

USA Site Plans prepares residential permit site plans using available property records, customer-provided measurements, photographs, and proposed project information. Reasonable edits are included when a permit reviewer requests drawing changes within the original project scope.

Permit, zoning, setback, stair, guard, stormwater, septic, historic-review, and structural requirements can change and may vary by property and deck design. Confirm current requirements with the City of Raleigh before construction. USA Site Plans does not replace a North Carolina licensed land surveyor, architect, engineer, contractor, Wake County Environmental Services, or municipal authority where those services are required.