When Is a Washington HOA Rule Unenforceable?

Not every rule a Washington board announces is automatically enforceable. The Uniform Common Interest Ownership Act actually narrows what a rule may regulate, and it conditions any fine on process. When a rule strays outside those bounds or is enforced selectively, its enforceability is open to question. For your specific situation, a licensed Washington attorney is the right resource. This is general information, not legal advice.

For the general framework that applies across states (where rule power comes from, adoption, reasonableness, and federal overrides), see When Is an HOA Rule Unenforceable?.

Can a Washington HOA make any rule it wants?

No. Under RCW 64.90.510, an association may adopt rules affecting the use or occupancy of, or behavior in, units only for listed purposes, such as implementing a declaration provision or regulating behavior that violates the declaration or adversely affects other units or the common elements. The same section protects activities like flag and political-sign display, solar devices, and assembly.

WUCIOA does not give boards open-ended rulemaking power. Under RCW 64.90.510, an association "may adopt rules that affect the use or occupancy of or behavior in units … only to" implement a declaration provision or regulate behavior that violates the declaration or adversely affects other units or the common elements, among the listed purposes. The same section protects specific owner activities — flag and political-sign display, solar devices, and assembly rights, for example. A rule that reaches beyond those purposes, or that collides with the protected activities, is on shaky ground no matter how it was adopted.

Fines require the statutory process

Even a valid rule does not produce a valid fine unless the association follows the process. Under RCW 64.90.405(2)(l), fines are allowed only "after notice and opportunity to be heard" and "in accordance with a previously established schedule of fines adopted by the board of directors and furnished to the owners." A fine imposed without notice and an opportunity to be heard, or with no pre-adopted schedule, is vulnerable on its face — independent of whether the underlying rule is sound. See Challenging an HOA Fine in Washington.

Selective enforcement

A rule applied to one owner but not to identically situated neighbors raises a recognized fairness problem. Associations are generally expected to enforce their restrictions consistently, and a documented pattern of overlooking the same conduct by others undercuts enforcement against a particular owner. The association's own records and minutes are usually where that pattern surfaces.

What can't an HOA ban in Washington?

EV chargers, heat pumps and fire-hardened materials, among others. RCW 64.90.513 and 64.90.580 bar provisions that effectively prohibit or unreasonably restrict EV charging stations or heat pumps, but in communities created before July 1, 2018, provisions existing then aren't invalidated. Since June 11, 2026, RCW 64.90.582 bars prohibiting fire-hardened building materials that meet health, safety and permitting requirements.

Some rules fail no matter how they were adopted, because higher law preempts them:

• Fair housing — the federal Fair Housing Act and the Washington Law Against Discrimination bar discrimination and require reasonable accommodations, including for assistance animals
• Display rights — the federal Freedom to Display the American Flag Act and the FCC's OTARD rule limit bans on the U.S. flag and on certain antennas and satellite dishes; RCW 64.90.510 adds Washington protections for flags, political signs, and solar devices
• Energy and wildfire upgrades — RCW 64.90.513 and 64.90.580 bar governing-document provisions that effectively prohibit or unreasonably restrict an owner's electric vehicle charging station or heat pump. Since January 1, 2026 (Laws of 2025, ch. 119), these sections also apply to most communities created before July 1, 2018, but for those communities they "do not invalidate existing provisions of the governing documents" that existed on July 1, 2018 (RCW 64.90.365(2)). Since June 11, 2026, governing documents "may not prohibit the installation, use, or maintenance of fire-hardened building materials" that meet health, safety, and permitting requirements (RCW 64.90.582; RCW 64.38.175 and 64.34.391 for older HOAs and Condominium Act condos; the Horizontal Property Regimes Act, RCW 64.32, has no parallel section; Laws of 2026, ch. 180)
• Servicemembers — the Servicemembers Civil Relief Act protects owners on active duty

Apart from carve-outs like RCW 64.90.365(2) for some older provisions, a rule that collides with any of these is not saved by being in the declaration.

What people generally do

When a Washington rule is in question, the points that commonly matter are:

• Whether the rule fits one of the purposes RCW 64.90.510 allows.
• Whether any fine followed the notice, hearing, and schedule-of-fines requirements of RCW 64.90.405(2)(l).
• Evidence of how the rule has been enforced against others.
• The issue can be raised in writing and during the comment period at an open meeting.
• A licensed Washington attorney is the resource before a disputed fine feeds the assessment account and lien.

Sources

• RCW 64.90.510 — Adoption of rules
• RCW 64.90.405 — Association powers and duties (fines)
• RCW 64.90.485 — Lien for assessments
• RCW 64.90.513 — Electric vehicle charging stations
• RCW 64.90.580 — Heat pumps
• RCW 64.90.582 — Fire-hardened building materials
• RCW 64.90.365 — Sections reaching older communities