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Serving King County

Construction Site Portable Toilets in Seattle, WA

Portable toilet units for Seattle construction crews, sized to the trades and placed on the lot the job actually has.

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  • Standard units, ADA units and handwash stations
  • Construction sites, festivals and private events
  • Delivery, servicing and pickup scheduled around your dates

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Construction Units

Construction Site Portable Toilets: what it covers

Quick answer

Multifamily permitting in the three-county region fell 37 percent through July 2025, according to a regional builders' bulletin, and permit activity slowed through 2025. Seattle's jobs are still steady and often on tight lots. The unit is sized to the crew and the trades and placed on the lot the job has, with servicing set around the build schedule.

Construction Site Portable Toilets illustration for Seattle, WA

Construction in Seattle is a mix of tower work, infill on narrow lots and renovation on hillside houses. Belltown and the Denny Triangle have high-rise infill on small lots, and South Lake Union has been rebuilt around office and lab towers. Each of those sites has a different access problem, and the unit is planned for it.

The regional picture is one of slowing permits. A builders' bulletin for September 2025 reported that King, Snohomish and Pierce counties had 3,758 multifamily units permitted through July 2025, down 37 percent, and 3,742 single-family permits, down 7 percent. Those are three-county figures, not Seattle's, and this page quotes them only as a regional context.

The count for a construction site is set from the crew and the trades. The operator asks how many people will use the unit each day, how long the job runs and whether a shared facility is nearby. A crew of four on a short build and a crew of twenty on a tower need different counts.

Service area
Seattle & King County
Availability
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Warning signs

Signs you need construction site portable toilets

Keep the unit clear of excavation edges, scaffolding footings and material stacks. Check the pad and the anchor after heavy wind or rain, and keep the route lit when the crew works late.

  • A Belltown tower site with a crew of twelve and one unit at the curb
  • A Queen Anne hillside rebuild where the only flat ground is the drive
  • A South Lake Union lab build with a fence line that blocks the truck
  • A Ballard infill site where the crew walks a long way to a restroom
  • A winter job on a hillside where the unit must be reached over a wet path
Our process

How our construction site portable toilets visit works

  1. Set the crew and the length

    Tell the provider the crew size, the trades and the weeks, and the count follows from those.

  2. Find the spot on the lot

    Choose a level, reachable spot clear of the material route, often inside the site fence or at the curb.

  3. Check the permit or consent

    A unit on the public way needs the permit for that space. A unit on private ground needs the owner's consent.

  4. Schedule the visits

    Visits are set for the working days and the weather, with the times agreed with the site lead.

  5. Collect when the work ends

    The unit is picked up when the crew leaves, and the spot is left clear and checked.

How many units does a construction crew need?

The operator sets the count from the crew, the trades, the job length and whether a shared facility is nearby. No City figure is published for construction.

Framing usually has the largest crew, and finishing a smaller one, so the count follows the stage. The site lead says when the crew changes, and the count is changed in writing.

A shared facility close by changes the picture. The site should state which applies, and the plan should record it.

Does the public use the site?

Units shared with visitors or the public are planned under the public-use rules, while crew-only units are handled differently.

A site beside a park, a trail or a busy sidewalk has public use nearby. The site lead decides who may use the unit and records the decision on the plan.

A unit used only by the crew is a different case, and the Special Events Office can say how a construction site beside a public space is treated.

What happens on a hillside lot in the rain?

Wet ground softens the drive and can lean a unit, so the pad and the route are checked after every heavy rain.

A hillside drive that holds in dry weather can turn to mud in a wet spell, and a unit can lean on a soft pad. The pad is checked after rain, and the route is kept clear of runoff.

Seattle's rain and cool weather also slow the drying of the ground, so the schedule allows for wet days.

How is the schedule set against the trades?

Servicing is timed for a gap in the trades' work so the truck does not block a delivery or a crane lift.

A visit during a concrete pour or a crane lift is a poor time, and the site lead should tell the provider when those happen.

The schedule is written in the site file and shared with the trades' leads, so each crew knows when the unit will be serviced.

How do you plan for a multi-trade tower crew?

A tower crew has several trades on different floors, and the units are spread across the site so no trade walks far, with the count set for each trade's shift.

The trades change through the build, so the count and the spread are reviewed at each stage. The plan lists the trades and their shifts beside the units.

Units on the upper floors of a tower are not usually practical, so the units stay at ground level, and the crew's route to them is planned through the building's lobby or the site entrance.

What does a site fence change about the placement?

A site fence limits where a unit can stand and where the truck can reach, so the unit is placed inside the fence where possible, with a gate route for the service vehicle.

The gate is the critical point. A gate that is too narrow for the service vehicle stops the visits, so the gate width is measured before the booking.

The fence line is checked for the unit's clearance, and the unit is set back from the fence so the door opens fully.

Options

Types and options for construction site portable toilets

Unit for a home or small build

One unit for a house or small build, on the drive or the lot for the length of the job.

Units for a tower or large build

Several units across a large site, spread so no trade walks far to reach one.

Unit inside a site fence

A unit within the fence, with a clear route for the service vehicle through the gate.

King County

Why construction site portable toilets is different in Greater Seattle

Belltown and the Denny Triangle are dense high-rise infill districts, and a unit there is set at the curb or in a side gap.

South Lake Union has been rebuilt around towers and labs, and the sites there have fences and trucks that the unit must be planned around.

Ballard has a lot of new apartment and mixed-use work beside older houses, and placements there keep the walk clear.

One call and it gets handled.

Most construction site portable toilets calls are scheduled the same day when a technician is free, and you approve the price before any work starts.

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Where we work

Construction Site Portable Toilets across King County

Not sure if you're covered? Check your ZIP code.

Related

Standard Portable Toilet Rental

Single-user portable toilets for Seattle construction, renovation and gatherings, placed where hillside lots and dense blocks allow.

Tower and Hillside Lot Placement

Placement planning for Seattle's tower sites and steep hillside lots, where the grade and the truck's stop decide the spot.

Long-Term Job Site Rental

Portable toilets kept on a Seattle job site for many months, serviced on a schedule and checked through the wet and dry seasons.

Rain and Cool-Season Servicing

Scheduled servicing for Seattle's wet and cool months, with the pad, the route and the visit planned around the weather.

Guides

Read before you book

FAQ

Construction Site Portable Toilets FAQs

Do construction crews need accessible units?

Units used only by the crew are a different case from units shared with the public. Ask the Special Events Office about a site beside a public space.

How is the count worked out?

From the crew size, the trades and the job length. The site lead can review it after the first week.

Can a unit go on the street in front of a job?

Only under the permit for that space, and the provider shows the spot on the plan before delivery.

What if the job runs longer?

The rental can be extended by agreement, and servicing and pickup are set again.

Where does the waste go?

To a permitted facility, under the Washington rules for septage.

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