Single units, accessible units and flushing trailers for weddings and private gatherings, sited around the access and permit questions a San Francisco yard creates.
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A wedding or private event restroom is usually a single portable unit, a small bank of units, or a towed flushing trailer. The right choice depends on the route from the street to the spot, the ground under it and whether any part of the set-up lands on the public curb. A local provider delivers, services and removes the units.
Most private events in San Francisco are small, and most of the restroom problem is where a unit can physically go. A backyard in the hill neighborhoods is often reached by a side passage, a stair run or a shared drive, and the truck may only be able to stop on the street out front. A garden wedding in a city park is different, because events in city parks go through the Recreation and Park Department rather than a street closure.
For a few dozen guests the usual answer is a standard unit, or two, with an accessible unit in the group. Longer receptions with a sit-down meal tend to point toward a towed flushing trailer, which needs a tow route the vehicle can drive and a level pad to sit on. Those two requirements rule out more backyards than people expect.
This page explains how the choice gets made, what a provider looks at before quoting and where street space rules reach a private event. It gives no price and no per-guest formula. The count comes from the guest list, the length of the event and the accessible-unit minimum, and the provider confirms the price before delivery.
Do not carry a unit or trailer through a narrow gate, down stairs or along a steep side yard on your own. Keep the guest path clear of the door and the service truck, and never block a driveway or a neighbor's gate. Keep children and pets away from the trailer hitch while the crew is setting up.
A single unit suits a family gathering or a small backyard party. It fits through a side gate in most cases and sits on a level patch of paving or firm lawn. The provider sizes the count to the guest list and the length of the day, and confirms it in writing before delivery.
Accessible units are built to a different layout and are identified by the International Symbol of Accessibility. A party that uses a bank needs at least one accessible unit, and it has to be reached by a route a wheelchair or walker can use. That route is what a provider checks first.
A towed trailer carries flushing toilets and sinks with running water, which many hosts prefer for a longer event. It needs a tow route, a level pad and a water and waste connection or holding system the provider can service. On hillside streets and narrow lots it often cannot be placed at all.
Call any hour and explain what is going on. You get a clear price before any work starts.
The count comes from the event itself, not a per-guest rule of thumb. It depends on the guest list, how long the party runs and whether food is served on site.
The count should follow the peak rather than the total guest list. A cocktail hour in the garden and a seated dinner produce very different peaks, and the provider proposes the mix in writing so the host can check it against the schedule of the day.
The price moves with the number of units, the length of the booking, the number of service visits and how hard the site is to reach. Access usually matters more than the event itself.
Units carried from the curb through a gate, down stairs or along a shared drive take longer to set, and that labor shows up in the quote. Accessible units, trailers and handwash stations each add their own equipment. The price is explained and approved before work starts.
Probably, if any part of the unit or its truck stands on the public right of way. Public Works names portable toilets among the covered uses of the street space permit.
The standard permit generally covers the parking lane and up to half the sidewalk along the fronting property. Going beyond that needs an additional permit with a lead time of at least thirty days, and a placard must be posted seventy-two hours before occupancy.
Only if the tow vehicle can reach the spot and the ground will carry a level trailer. Many San Francisco hill streets and narrow lots fail one of those tests.
A trailer needs a route the truck can drive without backing across a sidewalk or a steep grade. On a slope it creeps or sits on one corner, which is unsafe for the people inside it, so a crew often proposes a cluster of standard units instead.
Events outside San Francisco are arranged with that city or county, and this page states no rule for it. The provider can still set the units, but the local paperwork comes first.
The host should ask the city or county what applies before booking. The access, ground and accessible-unit questions on this page still apply, because they depend on the site rather than the city line.
A technician walks the path from where the truck can legally stop to the place the unit will sit. They look for narrow gates, stair runs, soft ground and any slope that would let a unit roll. This step decides whether a standard unit is practical or a trailer is the only sensible choice.
If any part of the unit or its truck stands on the public right of way, a street space permit is needed, because Public Works names portable toilets among the covered uses. The contractor or property owner pulls that permit. It is worth settling before the event date, since a permit that is not filed can delay the delivery.
The guest count, the length of the event and whether anyone needs an accessible unit set the number of units. California requires five percent, but no fewer than one, of the units in a cluster to comply with the accessible standard, so even a small bank needs one. That unit also needs a route from the street that a wheelchair can use.
The crew places each unit on firm, level ground, secures it against wind and checks that the door swings clear of the path guests will use. A trailer gets a check of its level pad, tow connection and any water and waste hookups. A unit left on soft grass for a long weekend can settle, so the set-up is checked again before guests arrive.
For a multi-day event or a wedding weekend, a crew services the units on a schedule agreed in advance. When the event ends, the provider removes the units and hauls the waste through its own permitted route. The host's job is to clear the spot and keep the gate open for the pickup.
San Francisco's older housing is a large part of why private events are hard to set up. Victorian and Edwardian houses often sit on narrow lots, and the rear yard is reached through the building or a narrow side passage. A unit that clears the front door does not always clear the back gate, so the route is measured before the day.
The hill neighborhoods add a second layer. Filbert Street between Hyde and Leavenworth is listed at 31.5 percent by the City Bureau of Engineering, and lists of the steepest streets disagree on rank, so a host should describe the actual access rather than a street name.
Weather matters too. The city's dry summer and wet winter both change the ground, and fog and wind off the ocean can push a lightweight unit on an open lawn. A unit staked against wind on a level pad is the difference between a clean set-up and a complaint from the neighbors.
Not sure if you're covered? Check your ZIP code.
A towed trailer with a closed room for guests, placed on a level pad that a tow route can reach.
Accessible single-user units marked with the International Symbol of Accessibility, placed with a usable route from the street.
One portable toilet placed, serviced and removed for a home project, a block or a yard in San Francisco.
Portable restrooms for multi-day festivals and concerts in San Francisco parks and on waterfront sites.
The count depends on the guest list, the length of the event and when the peak will be. Ask the provider to propose a mix in writing, including at least one accessible unit in any cluster. The provider confirms the count before delivery.
A trailer suits a longer event with a sit-down meal, because it carries flushing toilets and sinks with running water. It needs a tow route, a level pad and a water and waste connection. Standard units are often the practical choice for a backyard.
The contractor or the property owner pulls the street space permit, and the unit cannot occupy the public right of way without it. Settle the question before the event date, because a permit has its own lead time.
California requires at least one unit in any cluster to be accessible, so even a small bank needs one. The accessible unit must also be reached by a route a wheelchair can use. Ask the provider to show that route on the site visit.
Events in city parks go through the Recreation and Park Department, and the organizer holds the permit the park requires. Placement is usually agreed as part of that permit, so ask the organizer for the park's rules before choosing a spot.
The provider holds the registrations and permits for hauling and disposal, and waste goes out through its permitted route. San Francisco's portable chemical toilet waste is handled under the SFPUC trucked waste hauler permit. The host does not dispose of anything.