Marysville, WA Zoning Overlays & Bonuses: Density Bonus Law (2026)
Key Facts
- Program
- Residential Density Incentives (RDI)
- Eligible zones
- NR-4.5 to R-28, CB, GC, MU
- Affordable housing bonus
- 1.5 units per benefit unit
- Citation
- MMC § 22C.090.020, .030(6)
Summary
Marysville lets developers earn bonus dwelling units above base zoning density by providing public benefits like affordable housing, park dedication, or green building certification, reviewed under the city's density incentive program.
1. Affordable Housing a. Benefit units consisting of rental housing permanently priced to serve nonelderly low-income households (i.e., no greater than 30 percent of gross income for household at or below 50 percent of Snohomish County median income, adjusted for household size). ... 1.5 bonus units per benefit, up to a maximum of 30 low-income units per five acres of site area; projects on sites of less than five acres shall be limited to 30 low-income units.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4922912; v1 updated 2026-06-08; through 06-08-2026).
Full Breakdown
Marysville's Residential Density Incentives program, Chapter 22C.090 MMC, applies only in sewer-served NR-4.5, NR-6.5, R-12 through R-28, WR-R-6-18, CB, CB-WR, GC, and MU zones under MMC 22C.090.020. Developers earn bonus units or lots by exceeding base standards with listed public benefits; affordable rental housing serving low-income households at or below 50 percent of Snohomish County median income earns 1.5 bonus units per benefit unit, up to 30 low-income units per five acres under MMC 22C.090.030(6). Other benefits include park dedication, historic preservation, and green building certification, all subject to community development director review.
Violations & Fines
Bonus units are forfeited if the promised benefit is not recorded or completed before final plat, short plat, binding site plan recording, or certificate of occupancy, per the enforcement clause at MMC 22C.090.090.
Frequently Asked Questions
Can any residential lot in Marysville get a density bonus?
What's the biggest way to earn bonus units?
Sources & Official References
Other rules in Marysville
Compare Marysville to another location·View the Washington zoning overlays & bonuses overview
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Density Bonus Law in Nearby Cities
How other cities in Snohomish County handle density bonus law.