Where do you apply for a deck permit in Alameda County?

You can apply through the Alameda County permit portal or contact the Alameda County Public Works Agency, Building Inspection Department directly. The links are listed on this page.

Can a homeowner pull a deck permit themselves in Alameda County?

Under California law (Business & Professions Code 7044(a)-(b); Business & Professions Code 7031.5): California exempts an owner from contractor licensing under section 7044 when they personally perform all the work on their own property, or any work they do not perform themselves is done by their own employees paid only wages, and none of the improvements are intended or offered for sale. It also exempts an owner who directly contracts with licensed contractors for each trade, as long as no more than four of the single-family residential structures involved are intended or offered for sale in a calendar year; this route does not apply if the owner instead contracts with a general contractor for the construction. A homeowner may also improve their own principal residence without a license, as long as the work is done before any sale, they have actually resided there for the 12 months before completion, and they have not used this exemption on more than two structures more than once in any three-year period. Selling a self-built structure within one year of completion creates a rebuttable presumption that it was built for sale, which defeats the exemption, and selling five or more structures within a year makes that presumption conclusive. Separately, every city or county that requires a permit must also require the applicant to file a signed statement giving their contractor license number or the basis of their claimed exemption; a false or missing statement carries a civil penalty of up to $500. Confirm how Alameda County applies this before you apply.

California / Alameda County

Deck Permit in Alameda County, California

It depends

Sometimes, depending on the project

Before building a raised deck in unincorporated Alameda County that stands more than 30 inches above adjacent grade, sits over a basement or story below, or forms part of an accessible route

Confirmed on official page Verified 15 Aug 2026

Issued byAlameda County Public Works Agency, Building Inspection Department

By Mario Bailey, verified against official sources

Quick answer

Alameda County exempts raised decks, platforms, ramps, sidewalks, and driveways accessory to a house from a building permit only when they are not more than 30 inches above adjacent grade, are not over any basement or story below, and are not part of an accessible route. Anything above that needs a building permit. The county's Small Projects handout sets the plan package for a deck: a plot plan at 1 inch = 20 feet or 1/16 inch = 1 foot showing property lines, existing structures and their distance from the property lines, easements and utilities, and the deck's size and location; plus a floor framing plan and a foundation plan at not less than 1/4 inch = 1 foot. This applies to unincorporated Alameda County only.

Typical threshold: Height of a raised deck above adjacent grade at which the building permit exemption stops, and only where the deck is not over a basement or story below and is not part of an accessible route.

Who is pulling this permit?

Apply yourself

Apply on the Alameda County permit portal

Hire it out

When a permit is usually needed

Before building a raised deck in unincorporated Alameda County that stands more than 30 inches above adjacent grade, sits over a basement or story below, or forms part of an accessible route

What a deck permit costs in Alameda County

Line itemAmountApplies to

deck permitBy formulaNo deck line item appears in the Building Inspection Department Service Fee Schedule (Schedule A, effective July 1, 2024). A deck permit is priced from construction valuation using the Schedule A building permit fee table (for example, '$381.46 for the first $10,000 plus $8.88 for each additional $1,000.00 or fraction thereof, to and including $50,000'), plus building plan review at 80% of the building permit fee with a $140.00 minimum, plus a $20.00 single-permit processing fee.

Fee schedule in forceOfficial scheduleRead 15 Aug 2026. Fees are the jurisdiction’s; we do not mark them up or estimate them.

How Alameda County compares in California

Jurisdiction	Permit needed?	Threshold
Alameda Countythis page	It depends	Height of a raised deck above adjacent grade at which the building permit exemption stops, and only where the deck is not over a basement or story below and is not part of an accessible route
Contra Costa County	It depends	area of a deck that is also no more than 30 inches above grade at any point, is not attached to a dwelling, and does not serve a code-required exit door
Fresno County	Permit required	Any size
Los Angeles	Permit required	Any size
Los Angeles County	It depends	height of the deck surface above grade; the exemption also requires the deck not to be over any basement or story below and not to be part of an accessible route
Orange County	Permit required	Any size
San Diego County	It depends	A deck needs a building permit when it is more than 30 inches above adjacent grade, or sits over a basement or story below, or forms part of an accessible route.

Closest deck permit thresholds outside California

Jurisdictions we cover whose limit sits nearest Alameda County's 30 inches above adjacent grade.

Eugene, Oregon, height of the deck or porch floor above adjacent grade, measured at any point within 3 feet horizontally of the floor, with a covered porch also needing to stay at least 3 feet from property lines
Portland, Oregon, height of the deck walking surface above adjacent grade, taken 36 inches out from the edge of the deck
Wichita, Kansas, deck with no overhead structure and not over any basement or story below
St. Louis, Missouri, inches above adjacent grade for an uncovered wood deck or patio resting directly on the ground or a rock base with no permanent foundation

How to apply in Alameda County

In Alameda County, a residential deck permit application is a set of construction documents that show what will be built and prove it meets the IRC deck provisions. In practice that means a scaled site plan locating the deck and its setbacks, plus deck plans and structural details covering the footings, posts, beams, joists, ledger, guards, and stairs.

What most deck permit applications include:

For Alameda County, a permit application identifying the work, the deck's size (square footage), and whether electrical work such as lights or receptacles is included, submitted for plan review before construction begins (IRC R106).
For Alameda County, a scaled site plan (for example 1/4 inch to 1 foot) showing the new deck's location relative to the house, its overall length and width, and dimensioned distances from the deck to all property lines and other structures so required setbacks can be verified (IRC R106.1.1).
For Alameda County, a deck plan drawn to scale showing overall dimensions and the framing layout: joist size, spacing, span, and species; beam size and span; post size and height; and footing or pier size and depth (IRC R507.4 posts, R507.5 beams, R507.6 joists, R507.3 footings).
For Alameda County, a section or side elevation with connection details showing the ledger attachment to the house band joist with flashing, the fastener or bolt schedule, joist hangers, post-to-beam and post-to-footing connections, and the required lateral load connection (IRC R507.9 ledger connection, R507.9.2 lateral connection, R507.2.4 flashing).
Footing sizing derived from tributary area, the soil bearing value, and design loads per IRC Table R507.3.1, with footings shown bearing on undisturbed soil at the frost depth required by the jurisdiction (IRC R507.3).
Details for the guards required where the walking surface is more than 30 inches above grade, and for the stairs and handrails, showing guard height and opening limits, stair riser and tread dimensions, and handrail location (IRC R312 guards, R311.7 stairs and handrails).
For designs that fall outside the prescriptive R507 tables (for example multi-story or stacked decks, or a ledger attached to a cantilever), engineered and stamped structural plans are submitted in place of the prescriptive details (IRC R507.1 and R301).

General submittal guidance from IRC R106.1.1 (construction documents) and IRC R507 (exterior decks), 2021 IRC. Source. Alameda County Public Works Agency, Building Inspection Department sets the exact checklist for Alameda County.

Where to apply in Alameda County:

Alameda County Public Works Agency, Building Inspection Department

399 Elmhurst Street, Room 141, Hayward, CA 94544-1395
Phone: 510-670-5440
Email: permitbid@acpwa.org

Deck Permit in Alameda County compared with nearby California localities

Locality	Permit needed?	Threshold	What each California schedule says	Verified
Alameda County	It depends	Height of a raised deck above adjacent grade at which the building permit exemption stops, and only where the deck is not over a basement or story below and is not part of an accessible route	...valuation using the Schedule A building permit fee table (for example, '$381.46 for...	15 Aug 2026
Contra Costa County	It depends	area of a deck that is also no more than 30 inches above grade at any point, is not attached to a dwelling, and does not serve a code-required exit door	No deck-specific flat fee is published	15 Aug 2026
Fresno County	Permit required	Any size	No flat deck permit fee is published	15 Aug 2026
Los Angeles	Permit required	Any size	...graduated by declared project valuation per LAMC 91.113 Table 1-A, posted base $65...	17 Jun 2026
Los Angeles County	It depends	height of the deck surface above grade; the exemption also requires the deck not to be over any basement or story below and not to be part of an accessible route	...grade is priced from the valuation-based Table 1-A Building Permit Fees ($65.36 for...	15 Aug 2026

Inspections and closing out your permit

In Alameda County, deck work is inspected in sequence as it is built: the footings before concrete is placed, the framing before the decking boards go down, and a final inspection once the deck is complete. Each stage checks the items that would be hidden or unsafe if missed.

Footing or pier inspection in Alameda County: after the holes are dug and any forms or reinforcing are set but before concrete is placed, the inspector checks footing depth and diameter, a flat undisturbed bearing surface, and that the holes are free of water (IRC R109.1.1 foundation inspection; R507.3 footings).
Framing inspection in Alameda County: after the deck is framed but before the decking conceals it, the inspector verifies the ledger attachment and its flashing, the fastener and bolt schedule, joist hangers and metal connectors, post-to-beam and post-to-footing connections, and the lateral load connection; call it before decking is installed (IRC R109.1.4 frame inspection; R507.9 ledger and flashing).
Final inspection in Alameda County: after the deck is complete and before it is used, the inspector confirms guard height and opening limits (a 4 inch sphere must not pass, 4 3/8 inch at stairs), stair riser and tread dimensions, handrail height and graspability where there are 4 or more risers, stair landings, and required stair lighting (IRC R109.1.6 final inspection; R312 guards, R311.7 stairs and handrails).

Schedule each inspection in advance and pass the final before you use the work or close the permit. Request inspections through the Alameda County permit portal or by phone at 510-670-5440.

Inspection sequence from IRC R109 (inspections: R109.1.1 footing before concrete, R109.1.4 frame, R109.1.6 final), 2021 IRC. Source. An open permit left un-inspected can surface later in a title search or home sale.

Your Deck Permit checklist for Alameda County

Confirm the requirement. Sometimes, depending on the project. Typical threshold: Height of a raised deck above adjacent grade at which the building permit exemption stops, and only where the deck is not over a basement or story below and is not part of an accessible route. Usually needed: Before building a raised deck in unincorporated Alameda County that stands more than 30 inches above adjacent grade, sits over a basement or story below, or forms part of an accessible route.
Budget the fee. No deck line item appears in the Building Inspection Department Service Fee Schedule (Schedule A, effective July 1, 2024). A deck permit is priced from construction valuation using the Schedule A building permit fee table (for example, '$381.46 for the first $10,000 plus $8.88 for each additional $1,000.00 or fraction thereof, to and including $50,000'), plus building plan review at 80% of the building permit fee with a $140.00 minimum, plus a $20.00 single-permit processing fee. Official fee schedule.
Apply. In Alameda County, a residential deck permit application is a set of construction documents that show what will be built and prove it meets the IRC deck provisions. In practice that means a scaled site plan locating the deck and its setbacks, plus deck plans and structural details covering the footings, posts, beams, joists, ledger, guards, and stairs. Start at the Alameda County permit portal.
Keep the office details handy. Alameda County Public Works Agency, Building Inspection Department. Phone: 510-670-5440. Address: 399 Elmhurst Street, Room 141, Hayward, CA 94544-1395.
Plan for inspections. In Alameda County, deck work is inspected in sequence as it is built: the footings before concrete is placed, the framing before the decking boards go down, and a final inspection once the deck is complete. Each stage checks the items that would be hidden or unsafe if missed.

Compiled from the official sources on this page. Last checked 15 Aug 2026.

Frequently asked questions

Do you need a deck permit in Alameda County?: Alameda County exempts raised decks, platforms, ramps, sidewalks, and driveways accessory to a house from a building permit only when they are not more than 30 inches above adjacent grade, are not over any basement or story below, and are not part of an accessible route. Anything above that needs a building permit. The county's Small Projects handout sets the plan package for a deck: a plot plan at 1 inch = 20 feet or 1/16 inch = 1 foot showing property lines, existing structures and their distance from the property lines, easements and utilities, and the deck's size and location; plus a floor framing plan and a foundation plan at not less than 1/4 inch = 1 foot. This applies to unincorporated Alameda County only. Height of a raised deck above adjacent grade at which the building permit exemption stops, and only where the deck is not over a basement or story below and is not part of an accessible route. Always confirm with the office before starting.
How much does a deck permit cost in Alameda County?: No deck line item appears in the Building Inspection Department Service Fee Schedule (Schedule A, effective July 1, 2024). A deck permit is priced from construction valuation using the Schedule A building permit fee table (for example, '$381.46 for the first $10,000 plus $8.88 for each additional $1,000.00 or fraction thereof, to and including $50,000'), plus building plan review at 80% of the building permit fee with a $140.00 minimum, plus a $20.00 single-permit processing fee. See the official fee schedule for current amounts.
Where do you apply for a deck permit in Alameda County?: You can apply through the Alameda County permit portal or contact the Alameda County Public Works Agency, Building Inspection Department directly. The links are listed on this page.
Can a homeowner pull a deck permit themselves in Alameda County?: Under California law (Business & Professions Code 7044(a)-(b); Business & Professions Code 7031.5): California exempts an owner from contractor licensing under section 7044 when they personally perform all the work on their own property, or any work they do not perform themselves is done by their own employees paid only wages, and none of the improvements are intended or offered for sale. It also exempts an owner who directly contracts with licensed contractors for each trade, as long as no more than four of the single-family residential structures involved are intended or offered for sale in a calendar year; this route does not apply if the owner instead contracts with a general contractor for the construction. A homeowner may also improve their own principal residence without a license, as long as the work is done before any sale, they have actually resided there for the 12 months before completion, and they have not used this exemption on more than two structures more than once in any three-year period. Selling a self-built structure within one year of completion creates a rebuttable presumption that it was built for sale, which defeats the exemption, and selling five or more structures within a year makes that presumption conclusive. Separately, every city or county that requires a permit must also require the applicant to file a signed statement giving their contractor license number or the basis of their claimed exemption; a false or missing statement carries a civil penalty of up to $500. Confirm how Alameda County applies this before you apply.

From the Library

What else needs a permit in Alameda County

Every other permit type we have verified for this jurisdiction, with the rule that applies here.

Project	Permit needed?	Threshold	Typical fee
Electrical Permit	Permit required	Any size	...of a building permit scope, 'Electrical Permit 20% of Building Permit Fees, $140.00...
Fence Permit	It depends	Permit exemption height limit: 7 feet for fences of light materials, 5 feet 9 inches for fences of concrete, masonry, or similar heavy materials	...using the Schedule A building permit fee table, which starts at a '$140.00 minimum...
HVAC Permit	Permit required	Any size	...of a building permit scope, 'Mechanical Permit 18% of Building Permit Fees, $140.00...
Patio Permit	It depends	Total area of each sunshade structure, including any roofed area, at which the building permit exemption stops; the exemption also requires an average height of not more than 10 feet	...is priced from construction valuation using the Schedule A table with a $140.00...
Plumbing Permit	Permit required	Any size	...of a building permit scope, 'Plumbing Permit 17% of Building Permit Fees, $140.00...
Pool Permit	It depends	Depth of a prefabricated pool at which the building permit exemption stops; the exemption also requires the pool to hold no more than 5,000 gallons and to be installed entirely above ground	...A table, plus building plan review at '80% of the Building Permit fees, $140.00...
Roof Replacement Permit	It depends	Aggregate roof area repaired on a previously permitted roof, at which the building permit exemption stops	...valuation on the Schedule A building permit fee table, which begins '$140.00...
Shed Permit	It depends	Floor area of a one-story detached tool or storage shed accessory to a house, at which the building permit exemption stops	...and the Schedule B square-foot valuation table, with a stated minimum of '$140.00...
Solar Permit	Permit required	Any size	...energy system less than 35 Kva per system (when no plan review is required) $280.00...

Deck Permit in other California localities

Everything above, sourced

acpwa.org: permitsread 15 Aug 2026

acgovt.sharepoint.com: IQCCyubjT0Y SqitMeG8BIggAU1njmpdMxpRQL4niSUHzxYread 15 Aug 2026

Code references

National and state model-code sections the general guidance on this page is drawn from. They are not Alameda County documents; the office above sets the local rules.

How this deck permit page for Alameda County was verified. 2 official sources: acpwa.org, acgovt.sharepoint.com; fee schedule: official document. Last checked 15 Aug 2026 by Mario Bailey, not confirmed with Alameda County Public Works Agency, Building Inspection Department. Rules change; confirm before you build. How we verify.

Last checked: 15 Aug 2026Report an error on this page

Compare Deck Permit requirements across California localities

Deck permit rules nationwide

Look up an existing Alameda County permit record