Washington Revised Code Title 64. Real Property and Conveyances § 64.35.410. Authorized exclusions--General

(a) Landscaping, both hard and soft, including plants, fencing, detached patios, planters not forming a part of the building envelope, gazebos, and similar structures;

(b) Any commercial use area and any construction associated with a commercial use area;

(c) Roads, curbs, and lanes;

(d) Subject to subsection (2) of this section, site grading and surface drainage except as required by the building code;

(e) Municipal services operation, including sanitary and storm sewer;

(f) Septic tanks or septic fields;

(g) The quality or quantity of water, from either a piped municipal water supply or a well;

(h) A water well, but excluding equipment installed for the operation of a water well used exclusively for a unit, which equipment is part of the plumbing system for that unit for the purposes of the qualified warranty.

(a) A driveway or walkway;

(b) Recreational and amenity facilities situated in, or included as the common property of, a unit;

(c) A parking structure in a multiunit building;

(d) A retaining wall that: