Do You Need A Permit To
Remove A Driveway Or Slab?
Sometimes no. Often yes · and the permit people miss isn’t the one they expect. Here’s the straight answer for California homeowners, with the Contra Costa thresholds spelled out.
Do you need a permit to remove a driveway in California? The honest answer is that it depends on three things · where the concrete is, how much dirt moves, and what you’re putting back. A 10×10 backyard patio slab and a driveway that meets the street are the same material and the same machine, but they are not the same regulatory problem. One is usually nothing. The other almost always involves a permit from a department most homeowners have never heard of. This guide breaks down which situation you’re actually in, what Contra Costa County requires, and who to call before you break anything.
This is general information for California property owners, written from how these rules work in Contra Costa and Alameda County. Requirements vary by jurisdiction and they change. Nothing here replaces a call to the building department, public works department or engineering counter for the city or county your property actually sits in. When in doubt, ask them · it’s a free phone call and it’s cheaper than a stop-work order.
What’s In This Guide
- The three questions that decide it
- Decision table: which slab are you removing?
- The encroachment permit nobody tells you about
- Grading permit thresholds in Contra Costa
- Drainage, stormwater and your neighbor’s lot
- Does a demolition permit or BAAQMD J number apply?
- 811 / USA North · required for homeowners too
- Where the concrete goes and the 65% rule
- What happens if you skip the permit
- Who to call before you break anything
- Frequently asked questions
The Three Questions That Decide It
Skip the forums. Every permit question about flatwork removal reduces to these three, in this order.
1. Where is the concrete? Concrete entirely on your private property is regulated one way. Concrete in the public right-of-way · the sidewalk, the curb, the curb cut, the strip between the sidewalk and the street · is regulated completely differently, by a different department, under a different permit type. The property line is usually not where you think it is.
2. How much dirt moves? Breaking out a slab and hauling the concrete is demolition. Digging out the base rock, deepening the excavation, or exporting or importing fill is grading, and grading has volume and depth thresholds that trigger a permit regardless of what was on top.
3. What are you putting back? Removing a slab and leaving dirt is one thing. Removing a slab and pouring a new one, or converting the area to something else, brings the new work’s requirements · setbacks, lot coverage, impervious surface limits, drainage design · into the conversation. In many jurisdictions the removal isn’t what needs the permit; the replacement is.
Interior slab or backyard patio, no dirt moving, nothing going back: usually nothing required. Anything touching the sidewalk, the curb or the street: assume a permit and confirm. Anything that changes where water goes: assume a permit and confirm.
Decision Table: Which Slab Are You Removing?
Use this to figure out which conversation you need to have. “Confirm” means call · it’s genuinely jurisdiction-dependent.
| What You’re Removing | Typical Permit Picture | Who To Ask |
|---|---|---|
| Interior slab inside an existing building | Often falls under the remodel or interior demolition permit for the overall work, not a separate one | Building department |
| Backyard patio slab, nothing replacing it | Frequently no permit for removal alone | Building department |
| Detached shed or equipment pad | Usually no permit for the pad itself; check if the structure needed one | Building department |
| Driveway not touching the right-of-way | Often no permit to remove; replacement may need one | Building + planning |
| Driveway with a curb cut and sidewalk | Encroachment permit very likely for the right-of-way portion | City/county engineering or public works |
| Sidewalk, curb, gutter, parkway strip | Encroachment permit · assume yes | Engineering / public works |
| Anything that changes drainage or grade | Grading and/or drainage review likely | Building + engineering |
| Excavation over 5 ft deep or 200+ cubic yards | Grading permit required in Contra Costa | Building department |
| Site disturbance over one acre | SWPPP + Notice of Intent | Engineering / stormwater |
The Encroachment Permit Nobody Tells You About
This is the single most commonly missed permit in residential flatwork, and it is worth reading twice.
A driveway that meets the street does not end at your property line. It continues across the sidewalk and through the curb cut · the depressed section of curb your tires roll over. The sidewalk and the curb are in the public right-of-way. They are not yours, even though you probably maintain them and you almost certainly paid for the last repair. Work in the right-of-way is controlled by the city or county engineering or public works department, and it is almost always a separate permit from anything the building department issues. It’s usually called an encroachment permit.
Why it gets missed: homeowners and even some contractors call the building department, describe the job as “driveway removal,” get told the removal doesn’t need a building permit, and hear that as a clean yes. The building department answered correctly about the private portion and was never asked about the public portion. Two departments, two answers, one job.
Removing a driveway usually means the curb cut becomes an unused depression in the curb, and jurisdictions frequently require it to be restored to full-height curb and gutter to spec. That is concrete work in the right-of-way, done to the agency’s standard detail, subject to their inspection · sometimes with a bond or deposit. Discovering that requirement after the driveway is already gone is an expensive way to learn it.
The same logic applies to widening a driveway, adding a second curb cut, or cutting through a sidewalk section. If a shovel, saw or machine touches anything past the property line, call engineering first. On our driveway removal and concrete removal jobs, confirming where the right-of-way starts is part of the site walk, not an afterthought.
Grading Permit Thresholds In Contra Costa
Concrete removal turns into grading faster than people expect · especially when a driveway sits on a slope or a slab is being removed so the area can be re-cut for something new. Contra Costa County’s thresholds are specific:
- Excavation deeper than 5 feet or more than 200 cubic yards requires a grading permit.
- Fill requires a permit if it supports a structure, is deeper than 3 feet, or exceeds 200 cubic yards.
- Lafayette, Moraga and Orinda use a much lower threshold · 50 cubic yards. On a hillside lot that is not a lot of dirt.
- Grading of 1,000 cubic yards or more triggers neighbor notification.
- Submittal requires three sets of plans stamped by a licensed California Civil Engineer or Architect, plus two copies of a geotechnical report.
A typical residential driveway excavation is nowhere near 200 cubic yards · but a driveway removal that becomes a re-graded parking area on a slope can get there fast. If you’re not sure whether your job crosses the line, have someone estimate the volume before you start, not after the trucks are running. Our grading and leveling crew does that math as part of the estimate.
Planning A Project In The East Bay?
Free on-site estimate anywhere in Contra Costa or Alameda County. One fixed written number, permits included.
Get My Free EstimateDrainage, Stormwater And Your Neighbor’s Lot
This section is about liability, not just paperwork.
A driveway or slab is an impervious surface that has been directing water somewhere for decades · usually toward a street, a drain or a swale. Take it out, change the grade even slightly, and you redirect that water. On the flat, that’s a puddle. On an East Bay hillside, redirecting runoff onto a downhill neighbor’s property can mean saturated soil, a failed retaining wall, a flooded garage or a slope failure. That is a real problem and a real civil liability, and “I didn’t pull a permit so nobody told me” is not a defense · it makes it worse.
The practical rules: don’t create a new concentrated discharge point toward an adjacent property, don’t block an existing drainage path, and if the removal changes the slope of an area draining toward a neighbor, get the new grade designed rather than eyeballed. Many jurisdictions review drainage as part of the grading or building permit specifically to catch this.
Disturbing more than one acre of soil brings a SWPPP and a Notice of Intent into play. Most single-family driveway jobs are well under that. Multi-lot, commercial or large-parcel work often isn’t.
Does A Demolition Permit Or BAAQMD J Number Apply?
Structural demolition in the Bay Area requires notification to the Bay Area Air Quality Management District under Regulation 11, Rule 2 · the “J number.” The trigger is specific: it is required for any plan to demolish a load-supporting structural member of a building or facility, and it applies regardless of asbestos content, age or size. Notification is due 10 working days before start, reducible to 72 hours for dwellings of four or fewer units with an added fee.
So does a driveway need one? A freestanding driveway slab or a backyard patio generally is not a load-supporting structural member of a building · it holds up a car, not a structure. On that reading, no J number. But the rule text is written around buildings and facilities, and flatwork sits awkwardly against it. A slab that is part of a building, a foundation, a stem wall or an attached garage floor is a different conversation entirely, and there the answer usually flips.
We don’t guess on this. On any job where whether a J number applies is a genuine question, we call BAAQMD at 415-749-4762 and confirm before work starts. A late notification carries a substantial added fee, and a missed one is a violation. A phone call costs nothing. For anything involving a foundation or a slab tied to a structure, see our foundation and slab removal page and the demolition permit guide.
811 / USA North · Required For Homeowners Too
This one is not optional and it is not contractor-only. Under California Government Code §4216.2, an excavator must notify the regional notification center · 811 / USA North · at least 2 working days and not more than 14 calendar days before excavating. The ticket is valid for 28 days.
“Excavator” includes a homeowner with a rented jackhammer and a shovel. Driveways and slabs sit directly above the utility corridor for a house: the gas service, the water lateral, the sewer lateral, electrical conduit, irrigation lines and low-voltage runs. Breaking a slab is not obviously “digging,” but the equipment goes below grade, and hitting a gas line under your own driveway is a life-safety event and a liability you will personally own.
The call is free. Make it, wait the two working days, and don’t break anything before the marks are down.
Where The Concrete Goes And The 65% Rule
California requires a minimum 65% diversion of non-hazardous construction and demolition waste. Concrete is the easiest material in the entire waste stream to hit that number with · it’s inert, it’s recyclable, and processing facilities want it. Broken concrete gets crushed into aggregate and base rock and goes back into roads and pads.
Where jurisdictions differ is documentation. Unincorporated Contra Costa County requires a Waste Management Plan before the permit issues and a Waste Management Report with receipts after completion, showing facility name, date, place of origin, material type and quantity. As of August 4, 2025 those plans and reports go through the Green Halo portal. RecycleSmart · which administers C&D for Danville, Moraga, Lafayette, Orinda, Walnut Creek and unincorporated Contra Costa · requires debris to move via a Registered C&D Transporter to an Approved C&D Processing Facility.
Practically: if your job needs a permit, keep every weight ticket. Concrete dump fees run $90-$160 per ton, and that disposal cost is a real share of any removal quote · see our concrete driveway removal cost breakdown for how it stacks up. If you’re hauling it yourself, confirm the facility is on the approved list before you load. Our debris hauling and recycling service handles the transporter registration and the reporting.
What Happens If You Skip The Permit
Three ways it goes wrong, in rough order of how often we see them.
- Stop-work order. A neighbor calls, an inspector drives by, or the noise draws attention. Work stops where it stands · frequently with a half-broken driveway and no vehicle access · until the paperwork catches up. Days to weeks, and your crew is still on the clock or has moved to another job.
- Retroactive permits at higher fees. Most jurisdictions will let you permit after the fact, but investigation or after-the-fact fees are commonly a multiple of the original. Worse, if work is already covered or the concrete is already hauled, you may be asked to expose or document what an inspector can no longer see.
- Problems at resale. Unpermitted work shows up in disclosures, appraisals and title review. A buyer’s agent finding a driveway or curb cut altered without a permit can force a repair credit, a permit cleanup before close, or a price renegotiation. Right-of-way work is especially visible · the curb either matches the standard detail or it doesn’t.
None of these are catastrophic on their own. All of them cost more than the permit would have.
Who To Call Before You Break Anything
Run this list. It takes an afternoon and it removes essentially all of the risk on this page.
- 811 / USA North · 2 working days minimum, 14 calendar days maximum before you excavate. Ticket valid 28 days. Non-negotiable, homeowners included.
- Your building department · ask specifically: does removal of this slab require a permit, and does what I’m putting back require one?
- Engineering or public works · the separate call. Ask: is any part of this in the public right-of-way, do I need an encroachment permit, and do I have to restore the curb cut?
- Planning · if the surface is changing use, or if there are lot coverage, setback or impervious surface limits in play.
- BAAQMD (415-749-4762) · if the slab is attached to or part of a structure, confirm whether a J number is required. Don’t assume either way.
- Your disposal facility · confirm it’s an approved C&D processing facility and that you’ll get a weight ticket you can file.
- A licensed contractor · for anything involving the right-of-way, a slope, or a grade change. Unincorporated El Sobrante is permitted by the County, not a city; get that right before you file anything.
Frequently Asked Questions
Do you need a permit to remove a driveway in California?
It depends on where the concrete is, how much dirt moves and what you’re replacing it with. A driveway entirely on private property, with no grade change and nothing going back, often needs no permit. But if the driveway meets the street, the curb cut and sidewalk are in the public right-of-way and almost always require a separate encroachment permit from the city or county engineering department. Requirements vary by jurisdiction · confirm with your local building and public works departments.
What is an encroachment permit and why do I need one for a driveway?
An encroachment permit authorizes work in the public right-of-way · the sidewalk, curb, gutter and parkway strip. Your driveway crosses that area at the curb cut, and that portion isn’t your property even though you maintain it. It’s issued by engineering or public works, not the building department, which is exactly why it gets missed. Removing a driveway often also means restoring the curb cut to full-height curb and gutter to the agency’s standard detail.
Do I need a grading permit to remove a slab in Contra Costa County?
Not for the removal itself, but a grading permit is required if you excavate deeper than 5 feet or move more than 200 cubic yards, or place fill that supports a structure, is deeper than 3 feet, or exceeds 200 cubic yards. Lafayette, Moraga and Orinda use a 50-cubic-yard threshold. Grading of 1,000 cubic yards or more triggers neighbor notification, and submittals need engineer- or architect-stamped plans plus a geotechnical report.
Does removing a driveway need a BAAQMD J number?
A J number is required for any plan to demolish a load-supporting structural member of a building or facility, regardless of asbestos content, age or size. A freestanding driveway slab generally isn’t that. But the rule text is genuinely ambiguous where flatwork is concerned, and a slab tied to a building or foundation is a different answer. We confirm with BAAQMD at 415-749-4762 on any job where it’s a real question rather than guessing · a late notice carries a significant added fee.
Do homeowners have to call 811 before breaking concrete?
Yes. California Government Code §4216.2 requires any excavator · including a homeowner doing their own work · to notify 811 / USA North at least 2 working days and not more than 14 calendar days before excavating. The ticket is valid 28 days. Gas, water, sewer and electrical services commonly run directly under driveways and slabs. The call is free.
What happens if I remove a driveway without a permit?
Typically one of three things: a stop-work order that freezes the job mid-demolition, a retroactive permit at investigation-level fees that are often a multiple of the original cost, or a problem at resale when disclosures, appraisal or title review flag unpermitted work. Right-of-way work is the most visible of all · the curb either matches the agency’s standard detail or it doesn’t.
Legacy Demolitions Team
We’re a licensed demolition and concrete removal contractor at 4533 Appian Way in El Sobrante, working across Contra Costa and Alameda County. CA License #1122603. We pull the permits, mark the utilities, restore the curb where required, and hand you the weight tickets. See our permit guide or request an estimate.
Let Us Sort The Permits Out
Send the address and a photo of the driveway from the street. We’ll tell you which permits your jurisdiction actually requires, what the curb restoration involves, and what the whole thing costs · in writing.
Legacy Demolitions LLC · 4533 Appian Way, El Sobrante, CA 94803 · CA License #1122603
Straight answers about your site.
If the cheaper path is not demolition, we say so on the first visit. We price the options side by side and let the numbers make the call.