How Bellingham Handles Landscaping Rules: A Practical Guide

Bellingham maintains 106 local ordinances across all categories, and 8 of those deal specifically with landscaping rules. Here is a breakdown of what the city actually requires, what is prohibited, and where Bellingham falls on the strict-to-permissive spectrum compared to other cities.

Tree Removal & Heritage Trees

Bellingham regulates tree removal on multiple tracks: (1) the Emergency Landmark Tree Ordinance (adopted May 20, 2024; extended through September 2026) protects any healthy tree 36 inches or greater DBH from removal without City approval, with fines of $800 to $5,000 per violation; (2) BMC Chapter 16.60 (Land Clearing) regulates 'significant trees' (6 in. DBH or greater) during development; and (3) BMC 13.40 requires a Street Tree Permit to remove any tree in a public right-of-way.

Key details: Landmark Tree: 36 in. DBH or greater, healthy (excl. black cottonwood). Landmark Penalty: $800 minimum, $5,000 maximum per violation. Landmark Adopted: May 20, 2024 (emergency); extended through Sept 2026. Significant Tree: 6 in. DBH or greater (BMC 16.60). Development: Tree retention plan + PCDD replacement ratio (BMC 16.60).

Violation of the Emergency Landmark Tree Ordinance carries a minimum fine of $800 and a maximum of $5,000 per violation. Removing or damaging trees in a right-of-way without a Street Tree Permit violates BMC 13.40 and is subject to Code Compliance enforcement. Clearing significant trees without an approved tree retention plan during a development project blocks issuance of associated building, street, or utility permits and may require replacement at PCDD-determined ratios.

Compared to other cities, Bellingham takes a harder line on tree removal & heritage trees. The enforcement and penalty structure reflects that.

Native Plants

Within the Lake Whatcom watershed, BMC 16.80.080 requires residential single development to retain (or restore) at least 30% of the total site area as a Native Vegetation Protection Area (NVPA) of native trees, understory, and ground cover, protected in perpetuity by covenant or conservation easement. Outside the watershed, BMC 20.12.030 (Landscaping) requires tree species to be native to the area or recognized as easily adaptable to the climate for commercial and multi-family landscaping.

Key details: Lake Whatcom NVPA: 30% of site area, native forested condition (BMC 16.80.080). NVPA Protection: Covenant or conservation easement to City, in perpetuity. Citywide Landscape: Native or climate-adaptable species (BMC 20.12.030). Applies: New construction + remodels >50% of assessed value. Single-Family: Exempt from BMC 20.12 landscaping (outside watershed).

Failing to establish and protect the required 30% NVPA on residential single development in the Lake Whatcom watershed prevents issuance of a building permit under BMC 16.80.080 until the covenant or conservation easement is granted to the City. Violating the NVPA protection in perpetuity (clearing the protected native vegetation later) is a code violation subject to City enforcement under the stormwater and watershed provisions. Outside the watershed, commercial / multi-family landscaping that does not meet BMC 20.12.030 species and LID requirements prevents issuance of the certificate of occupancy.

Grass Height Limits

The Bellingham Municipal Code does not set a specific numeric height limit (e.g., 8 or 12 inches) for grass or weeds on private property. Instead, vegetation is regulated under BMC Chapter 10.28 (Nuisances) when it obstructs sidewalks, streets, sight triangles, or utilities, and under BMC 13.40.050 which makes abutting property owners responsible for maintaining vegetation in the planting strip and on adjacent sidewalks.

Key details: Height Limit: No specific inch threshold in BMC. Test: Obstruction / visibility / fire-access impact. Nuisance Code: BMC Ch. 10.28 (Nuisances declared). Owner Duty: BMC 13.40.050 — maintain planting strip & sidewalk vegetation. Notice Period: 7 days from notice to abate.

Under BMC 10.28.030, before a person is charged with a violation, Code Compliance gives written notice of the nuisance and allows seven days from the date of notice (or attempted notice) to abate. If the property is not brought into compliance, the City may abate and assess the cost against the owner, and may pursue civil-infraction or other enforcement under the nuisance chapter.

If you are coming from a city with tighter rules, you will find Bellingham gives residents more flexibility on grass height limits.

Water Restrictions

Bellingham draws its drinking water from Lake Whatcom and asks residents to follow a voluntary summer watering schedule from June 1 to September 30 to reduce stress on the supply. Even-numbered addresses water Tuesdays/Thursdays/Saturdays; odd-numbered addresses water Sundays/Wednesdays/Fridays; no watering on Mondays. The City recommends one inch per week, early morning. Washington's surface water rights are administered by the WA Department of Ecology under RCW 90.03.

Key details: Drinking Water Source: Lake Whatcom (City reservoir). Voluntary Season: June 1 – September 30. Even Addresses: Tues / Thurs / Sat. Odd Addresses: Sun / Wed / Fri. No Watering Day: Mondays.

The summer watering schedule is voluntary; non-compliance carries no monetary penalty under current code. However, ignoring conservation requests during low-supply periods can lead the City to escalate to mandatory restrictions. Diverting surface water in violation of an Ecology curtailment order violates RCW 90.03 and is subject to state enforcement (compliance checks, civil penalties, water-right action).

Tree Trimming

Under BMC Chapter 13.40 (Street Trees and Other Vegetation), no person may perform major pruning or remove trees in planting strips, improved rights-of-way, or other public places without first obtaining a Street Tree Permit from the City. Topping is unlawful as a normal practice, and the City may require that pruning be performed by a licensed tree trimmer.

Key details: Permit: Street Tree Permit required for major pruning in ROW. Code: BMC Ch. 13.40 (Street Trees and Other Vegetation). Topping: Unlawful as a normal practice (BMC 13.40). Contractor: City may require licensed tree trimmer. Apply: Permit Center — PL-permits@cob.org.

Major pruning or removing trees in a public right-of-way or planting strip without a Street Tree Permit, or topping a public tree as a normal practice, violates BMC 13.40 and is enforced through Code Compliance. The abutting owner who fails to maintain planting-strip vegetation under BMC 13.40.050 can be cited under BMC 10.28 nuisance procedures, with seven days' written notice to abate before City action.

Rainwater Harvesting

Washington State allows rooftop-collected rainwater to be used on the property where it is collected without a water-right permit, under Department of Ecology Interpretive Policy Statement POL-1017 (2009) interpreting RCW 90.03. Bellingham does not impose a separate barrel-permit requirement, and rainwater harvesting is actively encouraged as a stormwater LID practice within the Lake Whatcom watershed.

Key details: State Policy: Ecology POL-1017 (2009) — no permit for rooftop on-site use. Statute: RCW Ch. 90.03 (Water Code). Allowed Use: On the property where collected. City Permit: None for basic residential barrels. Volume Cap: None statewide.

Because Ecology has determined no water-right permit is needed for on-site rooftop collection, there is no state penalty for residential rain barrels used on the property where collected. Off-site distribution of collected rainwater, large-scale storage for sale, or piping into the public drinking-water system would trigger separate state water-right or Department of Health permitting. The City of Bellingham imposes no specific penalty for unpermitted residential rain barrels.

Bellingham is more permissive than most cities when it comes to rainwater harvesting. That said, there are still limits.

Weed Ordinances

Weed control in Bellingham is enforced by the Whatcom County Noxious Weed Control Board under Washington State Law RCW Chapter 17.10, covering all Class A weeds and the County's selected Class B/C weeds. Within the Lake Whatcom watershed, BMC 15.42.050 additionally prohibits applying any fertilizer, mulch, or soil amendment containing more than zero percent phosphorus, eliminating most lawn-and-weed chemical products in the basin.

Key details: State Law: RCW Chapter 17.10 (Noxious Weeds). County Board: Whatcom County Noxious Weed Control Board (1981). Board Office: 322 Commercial St, Suite 110, Bellingham WA 98225. Mandatory: Class A + Class B-designate species. Lake Whatcom: 0% phosphorus rule (BMC 15.42.050).

Under RCW 17.10, the Whatcom County Noxious Weed Control Board can issue notices requiring control of designated weeds; non-compliance authorizes the Board to enter, control the weeds, charge the landowner, and ultimately lien the property. Violations of BMC 15.42.050 (phosphorus application in the Lake Whatcom watershed) are enforced as stormwater code violations by the City of Bellingham. General overgrown nuisance vegetation is enforced under BMC 10.28.030 with a written 7-day notice to abate before charging a violation.

Artificial Turf

The Bellingham Municipal Code does not contain a specific provision allowing or prohibiting artificial turf on private residential property. However, synthetic turf cannot satisfy the 30% Native Vegetation Protection Area (NVPA) requirement under BMC 16.80.080 in the Lake Whatcom watershed, and Washington State has no statewide HOA xeriscape protection statute, so private HOAs can set their own rules.

Key details: City Rule: No specific BMC chapter on residential artificial turf. Permit: None required for basic residential install. Lake Whatcom NVPA: Does not satisfy 30% NVPA (BMC 16.80.080). Stormwater: May be impervious surface for BMC 15.42 calcs. WA HOA Protection: None statewide (unlike CO / FL).

Because there is no specific city rule against residential artificial turf outside the Lake Whatcom watershed, there is no City-level penalty for a standard installation. Using synthetic turf to claim NVPA credit in the Lake Whatcom watershed under BMC 16.80.080 fails the natural-forested-condition standard and blocks building-permit issuance until compliant native vegetation is established. HOAs may impose fines under recorded CC&Rs in either area.

Bellingham is more permissive than most cities when it comes to artificial turf. That said, there are still limits.

The Bottom Line

Compared to many U.S. cities, Bellingham gives residents more room on landscaping rules. 3 of the 8 rules here are rated permissive. But permissive does not mean unregulated. There are still requirements, and the city does enforce them when violations are reported.

Keep in mind that Bellingham can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.