Landscape Design and Installation Cost in Seattle 2026
Landscape Design and Installation in Seattle costs between $4,238 and $35,313 in 2026, with the average around $12,712. Seattle pricing runs 41% above the US national average. A designed front or back yard: plan, grading, soil prep, planting beds, trees and shrubs, mulch, edging and lawn, installed by a crew from a drawn plan.
What landscape design and installation includes in Seattle
A designed front or back yard: plan, grading, soil prep, planting beds, trees and shrubs, mulch, edging and lawn, installed by a crew from a drawn plan.
Typical time on site: 3 days to 2 weeks. Local labor rate: $26/hour for an experienced landscaping pro.
What changes the price of landscape design and installation in Seattle
- Yard size
- Plant sizes and species
- Grading and drainage
- Hardscape elements
- Irrigation included
A landscape design and installation quote priced off statewide averages will be off by 10 to 20 percent for Seattle, because the metro has its own labor pool, material delivery distances, and permit timelines.
Seattle climate and demand for landscaping
Mild winters with persistent rain (moss/moisture on roofs); rare snow loads; minimal AC historically but warming trend
Seattle permits for landscape design and installation
Building department: Seattle Department of Construction and Inspections (SDCI). https://www.seattle.gov/sdci
Typical permit cost: $400 - $5,000 residential. Inspection time: 10-25 business days; plan check 6-12 weeks. Seattle rule: Seattle SDCI has strict energy code (Stretch Code). Tree ordinance affects site work. ADU streamlined permitting. WA L&I license required for all contractors.
Washington sales tax and licensing for Landscaping
Washington sales tax: 6.5% + local (~9.3% combined avg) + 0.471% B&O. WASHINGTON TAXES CONTRACTOR LABOR. Retail Sales Tax applies to total construction contract (labor + materials) on speculative builders. Custom construction taxed differently.
State license: Washington Department of Labor and Industries (L&I), required: $117 (initial) + $12K bond + insurance.
Get accurate Landscape Design and Installation quotes in Seattle with KaamCam
KaamCam helps Seattle landscaping pros send branded estimates by text, take deposits online, and schedule jobs from one app. The estimate templates auto-fill Washington sales tax and Seattle permit fee lines. $12 per user per month. Start a 7-day free trial.