Concrete Patios & Stairs in Tumwater, WA

A Tumwater patio is judged first against the city’s exempt lists, then by its grade and any raised edge. The exempt lists we read name sheds and fences, not patios, so each slab gets a written city answer before the forms are set.

Patio and steps cross-sectionA concrete patio slopes away from the house on a compacted base and ends in steps with equal risers. 12345
Patio section: sloped away from the house, ending in steps
  1. Surface slopes away from the house and foundation
  2. Broom, aggregate, or stamped finish with a slip-resistant sealer
  3. Compacted rock base under the slab
  4. Steps with equal risers, built to code dimensions
  5. Foundation and footing, kept clear of pooling water

Patios & stairs in Tumwater: what to know

Patios are not named in the exempt excerpts we read, so the city’s answer on a slab is requested in writing before the pour. Any edge that stands above grade and carries soil or load is read as a wall question until the city says how it is treated. Steps and landings are measured flight by flight, with each rise and landing depth recorded beside it.

Patio runoff needs a landing spot inside the property line, never a neighbor’s yard or a street shoulder. Stormwater standards for the parcel come from TMC 17.16.010(D), which points to state rules, a regional Thurston manual, and the city’s development standards, so the drain route and any new impervious area are checked against those before the pour. A patio that drains onto a public strip waits for the city’s answer.

Permits and rules in Tumwater

We confirm with the city how a patio slab and any raised edge are treated before the form boards go in, and we keep that answer in writing on the scope. We measure any raised edge’s height and log the load behind it, and we verify the drain route against the stormwater standards before the pour. Steps that reach a public strip are held for right-of-way review.

Rules change and vary by parcel, so we confirm the current requirements with the city before we start.

How we approach it

  • Ask the city in writing how a patio slab is treated
  • Log any raised edge as a wall question until the city replies
  • Keep patio runoff inside the property line
  • Hold any step that reaches a public strip for review

For the full process, see our Concrete Patios & Stairs page.

Building in the cold months? See our guide to winter concrete pours.

Our patios & stairs work, serving Tumwater

Examples of our work. We build patios & stairs in Tumwater and the cities around it. See all of our work

Questions from Tumwater homeowners

Is a ground-level Tumwater patio reviewed at all?

The exempt excerpts we read do not name patios, so the city is asked in writing before the slab is poured. Until that reply arrives, we read any raised edge as a wall question and measure it from the footing.

How are Tumwater stairs and landings laid out for review?

Each flight’s rise and landing depth are recorded on the scope before the stringers are cut. Flights that touch a public strip are marked and sent to the city for right-of-way review, and the reply is filed beside the layout.

What happens to rain that runs off a Tumwater patio?

It stays on your own lot, such as a lawn area that can take the water. Runoff onto a neighbor or a public shoulder is not an outlet we propose, and the stormwater standards are checked before any slab goes in.

Other work in Tumwater

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Talk to us about your project

Call or email us. We’ll talk through the work and set up a time to see the site.

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