(1) Base Density. These densities may be achieved outright by following the applicable development and design standards.
(2) Review Chapters
19.50 and
19.54 UPMC for additional information regarding setbacks, height, and design standards for the Mixed Use – Neighborhood, Mixed Use – Urban, Mixed Use – Urban/Industrial and Mixed Use – Center zones. Existing single-family homes and duplexes in mixed use zones are exempt from Chapters
19.50 and
19.54 UPMC. Density and dimension standards applicable in the R1 zone shall apply to existing single-family homes and duplexes in mixed use zones.
(3) Maximum density in R1, R2 or specified overlay districts may only be achieved through approval of a small lot development designed in accordance with the “Design Standards and Guidelines for Small Lot and Multifamily Development” adopted pursuant to Chapter
19.53 UPMC. Maximum density in MF-L, MF-H, MU-M, NC or MU districts may only be achieved for a multifamily project that receives Washington State Housing Finance Commission approval for a low income housing tax credit (LIHTC) and is designed in accordance with the “Design Standards and Guidelines for Small Lot and Multifamily Development” adopted pursuant to Chapter
19.53 UPMC.
(4) Side and Rear Yard Setbacks. A side or rear yard setback is not required in MU, NC, MF-L, MF-H, MU-M, MU-O, MU-N45, MU-U75, MU-U/I75 or MU-C110 zones if the parcel does not abut an R1 or R2 zone. If abutting an R1 or R2 zone, a 30-foot setback is required along the abutting lot line(s), unless either (i) the subject parcel is in a transition overlay, in which case a 20-foot setback is required along the abutting lot line(s), or (ii) the abutting R1 or R2 parcels are part of the project site in which case a 10-foot setback is required along the abutting lot lines. No setback is required in the MU-M zone where the parcel abuts a railroad right-of-way.
(5) See design standards (Chapter
19.50 UPMC).
(6) Refer to underlying zone.
(7) See additional ADU allowances on conforming lots specified in UPMC §
19.45.035(C).
(8) Single-family attached units shall meet all R1 setback requirements except for the common lot line where the side yard setback may be zero feet. The remaining side yard, if not attached, shall be set back eight feet.
(11) Detached one-story garages may be set back a minimum of five feet providing sight distance is maintained.
(12) The front yard setback shall be the distance between the existing house and the railroad right-of-way or 20 feet, whichever is less.
(14) Maximum height shall be limited to 45 feet on those portions of a property abutting an R1 or R2 zone, if the R1 or R2 zone is not part of the project site. If the abutting R1 or R2 zoned parcels are part of the project site, the maximum height is 75 feet.
(15) Newly created lots shall be of such shape that a circle with a diameter equal to the minimum specified lot width can fit within the boundary of the lot. Minimum lot widths for small lot developments shall be determined through the design standard review process.
(16) Minimum lot sizes for detached single-family dwelling/middle housing or new lots created through a short plat or conventional preliminary plat/final plat process. Minimum lot size for small lot or multifamily developments shall be determined through the design standard review process. A legally nonconforming duplex lot existing prior to the effective date of the ordinance codified in this section may be subdivided into two attached single-family lots, one or both of which may contain less than the required lot area.
(17) Lot coverage refers to the percentage of a lot covered by buildings. For small lot developments, the lot coverage standard applies to buildings, private streets, parking lots, driveways and other impervious surfaces combined.
(19) Setbacks for small lot developments shall be in accordance with the “Design Standards and Guidelines for Small Lot and Multifamily Development” adopted pursuant to Chapter
19.53 UPMC.
(20) See the “Design Standards and Guidelines for Small Lot and Multifamily Development” adopted pursuant to Chapter
19.53 UPMC for additional information regarding height limits for small lot developments.
(21) Floor area ratios for small lot development are based on the average for the entire project; FARs for individual lots may vary. See UPMC §
19.45.080 for additional information concerning FAR standards.
(22) Impervious area located within 100 feet of the ordinary high water mark; may be increased from 50 to 65 percent by restoring or enhancing the vegetation conservation area in accordance with the provisions of UPMC §
18.25.100.
(23) Impervious area located more than 100 feet from the ordinary high water mark; may be increased from 75 to 90 percent by restoring or enhancing the vegetation conservation area in accordance with the provisions of UPMC §
18.25.100.
(24) Maximum height of a building or structure is 35 feet when located within 100 feet of the ordinary high water mark (OHWM). Height may be increased for buildings or structures located more than 100 feet from the OHWM or when located on the upland (easterly) side of 91st Avenue West, up to a range of 45 to 65 feet, when a visual impact assessment is submitted in accordance with UPMC §
18.25.110(E) and the decision-maker determines that a proposal will comply with the purpose and intent of UPMC §
18.25.110 regarding view protection. The 35-foot, 45-foot and 65-foot limit areas located east of 91st Avenue West are shown in Figure 11.
(25) A 35-foot rear setback measured from the ordinary high water mark is required for properties located within shoreline jurisdiction.
(26) Rear setback is measured from the ordinary high water mark.
(27) Only uses included in the Chambers Creek Properties master site plan are allowed in the Chambers Creek overlay. A maximum of 130 extended stay lodging residential units are allowed in conjunction with the resort and hotel.
(Formerly 19.45.100. Ord. 394 § 1, 2003; Ord. 409 § 7, 2004; Ord. 422 § 2, 2004; Ord. 441 § 1, 2005; Ord. 443 § 1 (Exh. A), 2005; Ord. 470 § 1 (Exh. A), 2006; Ord. 514 § 3, 2008; Ord. 544 § 1 (Exh. A), 2009; Ord. 559 § 4 (Exh. A), 2009; Ord. 589 § 1 (Exh. A), 2011; Ord. 607 § 1 (Exh. A), 2012; Ord. 628 § 1 (Exh. A), 2013; Ord. 636 § 2 (Exh. A), 2014; Ord. 662 § 1 (Exh. A), 2015; Ord. 668 § 1 (Exh. A), 2017; Ord. 689 § 1 (Exh. A), 2017; Ord. 722 § 5, 2019; Ord. 741 § 1 (Exh. H), 2020; Ord. 756 § 3 (Exh. B), 2022; Ord. 760 § 5, 2022; Ord. 788 § 4 (Exh. D), 2025)