Two offices matter for most concrete jobs in Vacaville. The Building Division handles permits for work on your lot. The Public Works Department handles anything in the public right of way: the sidewalk, curb, gutter and the driveway approach. The answers below come from state law, the City's own published pages and the state excavation law. Rules change, so we confirm them for your address before work starts.
Do I need a permit for a driveway or patio?
For flat concrete on your own lot, often not. The California Building Code, section 105.2, exempts sidewalks and driveways that are not more than 30 inches above the adjacent grade, are not over a basement or story below and are not part of an accessible route. That is an exemption from the building permit only. Zoning rules on setbacks and coverage still apply. A patio cover, a slab that will carry a building, footings and taller walls do need permits. Cities can amend the state code, so the City of Vacaville Building Division has the last word.
Do I need a permit to widen my driveway?
Usually yes for the part at the street. If you widen the driveway only inside your lot, the building permit exemption above may cover it, subject to zoning limits on paving in the front yard. If you widen the opening at the curb, you are working in the City's right of way and need an encroachment permit from Public Works. The City's encroachment permit terms call for at least 24 hours' written notice before work begins and for the contractor to carry general liability insurance of at least $1,000,000 per occurrence with the City named as additional insured.
Who owns the driveway apron: me or the city?
The apron, also called the driveway approach, sits in the public right of way, so the City controls how it is built. Upkeep is a different matter. The City of Vacaville states that property owners are responsible and liable for any damaged sidewalk and curb adjacent to their home. In practice the owner pays to repair the apron, and the work is done under a City permit to City standards.
Who is responsible for the sidewalk in front of my house?
You are. California Streets and Highways Code section 5610 requires the owners of lots fronting a public street to maintain the sidewalk in a condition that will not endanger people or property. The City of Vacaville says the same on its Sidewalk Repair Program page: owners are responsible and liable for damaged sidewalk and curb next to their home. That program offers grants to low-income households to repair a sidewalk that is a trip hazard. Ask the City whether you qualify before paying in full yourself.
What if the city sent a notice to fix the sidewalk? Read the deadline and what the notice asks for. State law lets a city notify the owner to repair and, if the owner does not, do the work and bill the property. Call the number on the notice, ask what standard the repair must meet, and ask about the grant program.
Must I use the city's contractor, or can I hire my own? We found nothing published by the City that requires a particular contractor, and owners commonly hire their own. The contractor needs the encroachment permit and the insurance the City asks for. Confirm with Public Works when you call about the notice. We do this work and handle the permit.
How close to the property line can I pour?
Flat concrete can generally run close to a side or rear property line, because setback rules are mostly about structures. The practical limits are drainage and zoning. You may not send your runoff onto the neighbor's lot, so a slab at the line needs a slope or a drain that keeps water on your side. Front yards have their own limits on how much can be paved. Walls, covers and anything with height have real setbacks. The Planning Division confirms the rule for your zone.
Do I need a survey before pouring?
Not for most jobs. A survey is worth the money when the concrete will run right along a boundary, when the fence may not be on the line, or when a neighbor disputes where the line is. Fences are a poor guide. A licensed land surveyor can mark the corners. It costs far less than removing a strip of driveway poured on the wrong lot.
Do I need HOA approval?
If your home is in an association, almost certainly, and it is separate from any city permit. Many Vacaville neighborhoods have one, including the age-restricted community at Leisure Town and several newer hillside tracts. HOA rules can limit driveway widening, colors, stamped patterns and front yard paving. Get approval in writing first. We can supply a drawing and a finish sample for the application.
How much of my lot can I cover with concrete?
The limit comes from the zoning for your lot. Zoning codes commonly cap lot coverage and set a minimum landscaped area, especially in the front yard, and some limit impervious surface because hard paving sends more water to the storm drains. We did not find a single citywide figure to quote, so check with the Vacaville Planning Division for your zone. If you are near a limit, permeable pavers or a strip of gravel can take the place of some solid concrete.
When does a retaining wall need an engineer or a permit?
Under the California Building Code a retaining wall needs a permit when it is more than 4 feet high measured from the bottom of the footing to the top of the wall, or at any height if it supports a surcharge. A surcharge is extra load behind the wall, such as a driveway, a slope or a building. Because the height is measured from the bottom of the footing, a wall showing only about 3 feet above ground can qualify. Walls that need a permit generally need an engineer's drawings. This comes up often on hill lots in Browns Valley and Alamo.
How do I find underground utility lines before digging?
Contact USA North 811, the free one-call centre for Northern California, by dialing 811 or at usanorth811.org. California law requires notice at least two working days, and not more than 14 calendar days, before digging. The day you call does not count. Outline the dig area in white first. The utility companies then mark their lines. A ticket lasts 28 days. Within 24 inches of a marked line, the exact position must be found with hand tools before any power equipment is used. Private lines such as sprinkler pipe, pool plumbing and yard lighting are not marked, so tell us about any you know of. When we do the job, we make the request.
I need a wheelchair ramp and a wider walkway. What rules apply?
For a private home, a ramp is built to suit the person using it, and the common guide is a slope no steeper than 1 inch of rise for each 12 inches of run, with level landings at the top and bottom. A ramp or a walk that is part of an accessible route is not covered by the flatwork permit exemption, so ask the Building Division whether yours needs a permit. Businesses and rentals open to the public must meet the accessibility standards in the California Building Code. We have no published price for ramps and quote them after a visit.
My house is in a historic district or has old decorative concrete. Can I replace it?
Often yes, but check first. Vacaville's older downtown blocks include historic buildings, and work on a designated property that shows from the street can need review by the Planning Division. Old scored or tinted concrete can sometimes be repaired in place, or matched with a similar joint pattern and color. We did not confirm the exact review process, so call Planning with your address before you commit to a design.
To get an actual price for your job, ask for a free on-site estimate. We measure, look at the soil and the access, and put the quote in writing. Call (707) 385-5848 or text a photo of the area.