North Bend planning commission approves unit‑lot and lot‑splitting rules, adds critical‑area protections

The North Bend Planning Commission voted unanimously to recommend approval of revisions to the city’s subdivision rules that create a unit‑lot subdivision process and a streamlined residential lot‑splitting procedure, with added protections for critical areas and a new minimum 25‑foot separation between housing clusters.

Planning staff told commissioners the unit‑lot approach — drawn from recent state legislation — is intended “to make development quicker and easier for residential subdivision processing,” and would allow a range of housing types (condominiums, townhomes, cottages, accessory dwelling units and detached single‑family homes on smaller lots) while preserving overall zone density. Staff recommended allowing short‑plat unit‑lot subdivisions of up to nine lots and reserving the full subdivision process for larger projects.

The commission’s approval included two explicit amendments: a requirement that proposals establish a critical‑area tract at the time of application so wetlands and other protected areas cannot be carved into newly buildable lots, and a clarification that clusters of unit lots must be separated from one another by at least 25 feet. Staff said the 25‑foot standard would prevent applicants from placing adjacent clusters so close that they effectively create a larger contiguous mass of housing, while noting actual roadways, sidewalks and landscaping would typically create larger separations.

The added critical‑area protections respond to written comments from the Snoqualmie Tribe, which raised concerns that splitting a parent parcel into new lots without requiring a critical‑area tract could leave individual newly created lots that fall entirely within a wetland or other protected area and then trigger a variance or reasonable‑use exception. Staff told the commission the draft amendments in Chapter 14.05 will require the critical‑area tract to be recorded with both unit‑lot and lot‑split applications so the parent property and resulting lots are reviewed together.

Commissioners also discussed practical thresholds and infrastructure impacts. Staff said the short‑plat threshold of nine lots mirrors state limits for a simplified process; commissioners flagged that nine might feel high in some single‑family neighborhoods and debated whether the number should vary by parent‑lot size. Staff also presented a recommendation from city engineering that a frontage exemption apply when the property frontage is under 20 feet (for example, flag or L‑shaped lots), and clarified the minimum driveway width is 20 feet for the purposes of that exemption.

A member of the public with a constrained, hillside project told the commission clustering was essential to make development feasible on sites with limited buildable area, floodplain constraints and costly infrastructure needs. The commenter said clustering would allow preservation of more than half of a parent parcel as open space while concentrating units where they can be served by roads and utilities.

A commissioner moved to approve the North Bend Municipal Code amendments (Title 17.18 and 17.22), including definitions, critical‑area tracts and the 25‑foot cluster‑separation amendment; the motion was seconded and carried unanimously. The commission’s action is a recommendation to the City Council, which will consider the ordinance language and final adoption.

The hearing record and staff report also note minor edits to frontage‑improvement exemptions and cross‑references between Title 17 and Chapter 14 that staff made after an earlier June 3 review. The commission adjourned at about 7:07 p.m.