23.84A.038

"Tandem houses" means two unattached single-family dwelling units occupying the same lot. "Tandem parking" means one car parked behind another where aisles are not provided. "TDP" or "Transferable development potential" means base residential floor area, measured in square feet of gross floor area, that may be transferred from one lot to another according to provisions of this Title 23 . These terms do not denote or imply that the owner of TDP has a legal or vested right to construct or develop any development or to establish any use. "TDP, Landmark" means TDP transferred from, or transferable from, a lot based on its status as a Landmark TDP site. "TDP, open space" means TDP transferred from, or transferable from, a lot based on its status as an open space TDP site. "TDP, South Downtown Historic" means TDP transferred from, or transferable from, a lot based on its status as a South Downtown Historic TDP site. "TDP, vulnerable masonry structure" means TDP transferred from, or transferable from, a lot based on its status as a vulnerable masonry structure TDP site. "TDP site, Landmark" means a lot, in an area where the applicable provisions of the zone permit Landmark TDP to be transferred from a lot, that includes one or more structures designated wholly or in part as a Landmark under Chapter 25.12 or its predecessor ordinance, if the owner of the Landmark has executed and recorded an agreement acceptable in form and content to the Landmarks Preservation Board, providing for the restoration and maintenance of the historically significant features of the structure, and which lot includes no other structure that is not accessory to one or more of such structures. "TDP site, open space" means a lot, in an area where the provisions of the zone permit open space TDP to be transferred from a lot, that satisfies the applicable standards for an open space TDP site in Chapter 23.58A and the provisions of the zone to the extent that an exception from those standards has not been granted. "TDP site, South Downtown Historic" means a lot within the Pioneer Square Preservation District or the International Special Review District that satisfies the conditions to be a sending lot for South Downtown Historic TDP under Chapter 23.58A . "TDP site, vulnerable masonry structure" means a lot in an area where the applicable provisions of the zone permit vulnerable masonry structure TDP to be transferred from a lot that satisfies the applicable standards for a vulnerable structure TDP site in subsection 23.58A.042.F and the provisions of the zone, to the extent that an exception from those standards has not been granted. "TDR" or "Transferable development rights" means development potential, measured in square feet of gross floor area, that may be transferred from a lot pursuant to provisions of this Title 23 . Such terms do not include regional development credits, nor do they include development capacity transferable between lots pursuant to Planned Community Development provisions. These terms do not denote or imply that the owner of TDR has a legal or vested right to construct or develop any development or to establish any use. "TDR, arts facility" means either TDR from a major performing arts facility that are transferable pursuant to subsection 23.49.014.G; or TDR that are eligible for transfer based on the status of the sending lot as an arts facility TDR site, and if they are eligible for transfer on any other basis, are designated by the applicant seeking to use such TDR on a receiving lot as arts facility TDR. "TDR, DMC housing" means TDR that are eligible for transfer based on the status of the sending lot as a DMC housing TDR site and, if they would be eligible for transfer on any other basis, are designated by the applicant seeking to use such TDR on a receiving lot as DMC housing TDR. "TDR, housing" means TDR that are eligible for transfer based on the status of the sending lot as a housing TDR site and, if they would be eligible for transfer on any other basis, are designated by the applicant seeking to use such TDR on a receiving lot as housing TDR. "TDR, Landmark" means TDR that are eligible for transfer based on the fact that the sending lot or a structure on such lot is designated as a Landmark or as part of a Landmark under Chapter 25.12 or its predecessor ordinance, except Landmark housing TDR. "TDR, Landmark housing" means TDR that are eligible for transfer based on the status of the sending lot as a Landmark housing TDR site and, if they would be eligible for transfer on any other basis, are designated by the applicant seeking to use such TDR on a receiving lot as Landmark housing TDR. "TDR, open space" means TDR that may be transferred from, or transferable from, a lot based on its status as an open space TDR site. "TDR, South Downtown Historic" means TDR, except Landmark TDR, that are eligible for transfer based on the status of a structure on the sending lot as contributing to the architectural or historic character of the Pioneer Square Preservation District or the International Special Review District pursuant to Section 23.66.032 . "TDR, vulnerable masonry structure" means TDR that are eligible for transfer based on the status of the sending lot as a vulnerable masonry structure TDR site and, if they would be eligible for transfer on any other basis, are designated by the applicant seeking to use such TDR on a receiving lot as vulnerable masonry structure TDR. "TDR site, arts facility" means a lot meeting the following requirements: 1. The lot is located in a zone with a height limit of 85 feet or more; 2. Each structure to be developed on the lot is a major performing arts facility; or has or will have a minimum of 1 FAR or all of its chargeable floor area if there is less than 1 FAR in the structure(s) committed for at least 50 years to occupancy by one or more not-for-profit organizations dedicated to the creation, display, performance, or screening of art by or for members of the general public. 3. The arts facility commitments on the lot comply with the standards of the applicable zone and are memorialized in a recorded agreement between the owner of such an arts facility and the Director of the Seattle Office of Arts and Culture. "TDR site, DMC housing" means a lot meeting the following requirements: 1. The lot is located in a Downtown Mixed Commercial (DMC) zone; 2. Each structure to be developed on the lot has or will have a minimum of 50 percent of total gross above-grade floor area as dwelling units or congregate residence sleeping rooms committed as restricted units affordable to and occupied by households with annual incomes no higher than 80 percent of median income for a minimum of 50 years, unless such requirement is waived or modified by the Director of Housing for good cause; 3. The lot will have above-grade gross floor area equivalent to at least 1 FAR as dwelling units or congregate residence sleeping rooms committed as restricted units affordable to and occupied by households with annual incomes no higher than 50 percent of median income for a minimum of 50 years; and 4. The DMC housing TDR site requirements are memorialized in a recorded agreement between the owner of the housing and the Director of Housing. "TDR site, housing" means a lot meeting the following requirements: 1. The lot is located in any downtown zone except PMM, DH-1, and DH-2 zones, or is located in the South Lake Union Regional Center in any SM zone with a height limit of 85 feet or higher; 2. Each structure on the lot has a minimum of 50 percent of total gross above-grade floor area as dwelling units or congregate residence sleeping rooms committed as restricted units affordable to and occupied by households with annual incomes no higher than 80 percent of median income for a minimum of 50 years; 3. The lot has above-grade gross floor area equivalent to at least 1 FAR as dwelling units or congregate residence sleeping rooms committed as restricted units affordable to and occupied by households with annual incomes no higher than 50 percent of median income for a minimum of 50 years; 4. The dwelling units or congregate residence sleeping rooms according to subsections 2 and 3 of this definition is in one or more structures existing as of July 27, 2001, and the floor area was in residential use as of that date; and 5. The housing TDR site requirements are memorialized in a recorded agreement between the owner of the housing and the Director of Housing. "TDR site, Landmark housing" means a lot meeting the following requirements: 1. The lot is located in any Downtown zone except IDM, IDR, PSM, PMM, DH-1, and DH-2 zones; 2. A structure on the lot is a designated Landmark under Chapter 25.12 and such structure will be renovated to include a minimum of 50 percent of total gross above-grade floor area dwelling units or congregate residence sleeping rooms committed as restricted units affordable to and occupied by households with annual incomes no higher than 80 percent of median income for a minimum of 50 years; 3. The structure according to subsection 2 of this definition has or will have above-grade gross floor area equivalent to at least 1 FAR of dwelling units or congregate residence sleeping rooms committed as restricted units affordable to and occupied by households with annual incomes no higher than 50 percent of median income for a minimum of 50 years; and 4. The landmark housing TDR site requirements are memorialized in a recorded agreement between the owner of the housing and the Director of Housing. "TDR site, open space" means a lot that has been approved by the Director as a sending lot for open space TDR, which approval is still in effect, and for which all the conditions to transfer open space TDR have been satisfied. "TDR site, South Downtown Historic" means a lot eligible to transfer South Downtown Historic TDR, located within the Pioneer Square Preservation District or the International Special Review District, that includes one or more structures determined to be contributing to the architectural or historic character of the district pursuant to Section 23.66.032 . "TDR site, vulnerable masonry structure" means a lot that satisfies the standards to be a sending lot for vulnerable masonry structure TDR in subsection 23.58A.042.F and the standards of the zone to the extent that an exception from those standards has not been granted. "Theaters and spectator sports facilities." See "Entertainment." "Topographic break" means a separation of two (2) areas by an abrupt change in ground elevation. "Tower," in a Seattle Mixed zone, means for any portion of a structure with a height that qualifies as a tower, the portion of a structure located above the designated podium height, except as otherwise designated in the standards of the zone. "Tower, nonresidential," in a Seattle Mixed (SM) zone, means the portion of a structure in nonresidential use located above the designated podium height established for structures. "Towing service." See "Parking and moorage" under "Transportation facility." "Townhouse" See "Residential use." "Townhouse unit" means a dwelling unit in a townhouse development. "Transferable development potential" See "TDP" "Transferable development rights" See "TDR" "Transit facility, rail." See "Transportation facility." "Transit route, frequent" means a transit route or segment of a transit route providing frequent transit service in each direction. Segments of overlapping routes that are co-scheduled and together provide frequent transit service shall be considered to provide frequent transit service, and segments of these routes that do not overlap or do not meet these frequencies will not be considered to provide frequent transit service. "Transit service, frequent" means transit service with scheduled service in a typical week meeting or exceeding the following scheduled frequencies: 1. On weekdays from 6 a.m. to 7 p.m., 15 minutes on average (i.e., 52 trips between 6 a.m. and 6:59 p.m., inclusive), and no individual hour with fewer than three scheduled trips in each direction; 2. On weekdays from 7 p.m. to 12 a.m., 30 minutes on average (i.e., ten trips between 7 p.m. and 11:59 p.m., inclusive), and no individual hour with fewer than one scheduled trip in each direction; and 3. On weekends from 6 a.m. to 12 a.m., 30 minutes on average (i.e., 36 trips between 6 a.m. and 11:59 p.m., inclusive), and no individual hour with fewer than one scheduled trip in each direction. 4. For the purposes of this definition, "individual hour" means the 60-minute period beginning at the top of each hour; e.g., 6 a.m. to 6:59 a.m., inclusive, or 3 p.m. to 3:59 p.m., inclusive. "Transit service, major" means the following transit services: 1. Commuter rail; 2. Light rail or street car systems; and 3. Bus rapid transit routes that are in operation or are funded for development and projected for construction within an applicable six-year transit plan under RCW 35.58.2795. "Transit service area, frequent" means an area within 1,320 feet walking distance of a bus stop served by a frequent transit route or an area within 2,640 feet walking distance of a rail transit station, as shown on a map adopted by Director's Rule. "Transit station, light rail." See "Rail transit facility" under "Transportation facility." "Transit service area, major" means an area within 2,640 feet walking distance of a stop served by a major transit service, as shown on a map adopted by Director's Rule. "Transit station access easement" means an easement for a pedestrian route or connection to provide direct access from street level to transit tunnel stations and concourses and/or light rail transit facilities. "Transit station access, grade-level" means a pedestrian connection that provides direct access from street level to transit tunnel stations or concourses and/or light rail transit facilities at approximately the same level as the station mezzanine. "Transit station access, mechanical" means a pedestrian connection that incorporates a mechanical device, such as an escalator, to provide direct access from street level to transit tunnel stations and concourses and/or light rail transit facilities. "Transit stop, major" means a stop on a major transit service. "Transit vehicle base." See "Bus base" under "Vehicle storage and maintenance" under "Transportation facility." "Transitional encampment" means a use having tents or a similar shelter, including vehicles used for shelter, that provides temporary quarters for sleeping and shelter. The use may have common food preparation, shower, or other commonly-used facilities that are separate from the sleeping shelters. "Transparent" when used with reference to material in windows, doors and display windows, means clear or lightly tinted. "Transmission tower." See "Communications utilities and devices." "Transportation facility" means a use that supports or provides a means of transporting people or goods from one location to another. Transportation facilities include but are not limited to the following: 1. "Cargo terminal" means a transportation facility in which quantities of goods or container cargo are, without undergoing any manufacturing processes, transferred to carriers or stored outdoors in order to transfer them to other locations. Cargo terminals may include accessory warehouses, railroad yards, storage yards, and offices. 2. "Parking and moorage" means the short-term or long-term storage of automotive vehicles or vessels or both when not in use. Parking and moorage uses include but are not limited to: a. "Boat moorage" means a use in which a system of piers, buoys, or floats is used to provide moorage for vessels except barges, for sale or rent usually on a monthly or yearly basis. Minor vessel repair, haul out, dry boat storage, and other services are also often provided. Boat moorage includes, but is not limited to: 1) "Commercial moorage" means a boat moorage primarily intended for commercial vessels except barges. 2) "Recreational marina" means a boat moorage primarily intended for pleasure craft. (See also "Boat moorage, public") b. "Dry boat storage" means a use in which space on a lot on dry land, or inside a building over water or on dry land, is rented or sold to the public or to members of a yacht or boating club for the purpose of storing boats. Sometimes referred to as "dry storage." c. "Parking, principal use" means a use within a Shoreline District, subject to Chapter 23.60A , in which an open area or garage is provided for the parking of vehicles by the public, and is not reserved or required to accommodate occupants, clients, customers, or employees of a particular establishment or premises. Battery charging stations for electric vehicles are accessory to principal use parking. d. "Parking, flexible-use" means a use in which an open area or garage is provided for the parking of vehicles by the public, and is not reserved or required to accommodate occupants, clients, customers, or employees of a particular establishment or premises. Battery charging stations for electric vehicles are accessory to flexible-use parking. Flexible-use parking includes but is not limited to the following uses: 1) "Flexible-use parking garage" means a parking garage structure that solely consists of flexible-use parking. 2) "Flexible-use parking surface lot" means a surface parking lot that solely consists of flexible-use parking. e. "Park and ride facility" means a use, operated or approved by a public transit or ridesharing agency, where commuters park private vehicles and either join together in carpools or vanpools, or board public transit. f. "Towing services" means a parking and moorage use in which more than two tow trucks are employed in the hauling of motorized vehicles, and where vehicles may be impounded, stored, or sold, but not disassembled or junked. 3. "Passenger terminal" means a transportation facility where passengers embark on or disembark from carriers such as ferries, trains, buses, or planes that provide transportation to passengers for hire by land, sea, or air. Passenger terminals typically include some or all of the following: ticket counters, waiting areas, management offices, baggage handling facilities, restroom facilities, shops, and restaurants. A passenger terminal use on the waterfront may include moorage for cruise ships and/or vessels engaged in transporting passengers for hire. Activities commonly found aboard such vessels, whether moored or under way, that are incidental to the transport of passengers shall be considered part of the passenger terminal use and shall not be treated as separate uses. Metro street bus stops, monorail transit stations, and light rail transit stations are not included in this definition. Also excluded is the use of sites where passengers occasionally embark on or disembark from transportation in a manner that is incidental to a different established principal use of the site. 4. "Rail transit facility" means a transportation facility that supports or is used for public transit by rail. Rail transit facilities include but are not limited to the following: a. "Light rail transit facility" means a structure, rail track, equipment, maintenance base, or other improvement necessary to support a light rail transit system, including but not limited to ventilation structures, traction power substations, light rail transit stations and related passenger amenities, bus layover and intermodal passenger transfer facilities, transit station access facilities located on or off a light rail transit station site, and structures accessory to the development of a light rail transit system. b. "Light rail transit station" means a light rail transit facility whether at grade, above grade, or below grade that provides pedestrian access to light rail transit vehicles and facilitates transfer from light rail to other modes of transportation. A light rail transit station may include mechanical devices such as elevators and escalators to move passengers and may also include such passenger amenities as informational signage, seating, weather protection, fountains, artwork, or concessions. c. "Light rail transit system" means a public rail transit line that operates at grade level, above grade level, or in a tunnel and that provides high-capacity, regional transit service, owned or operated by a regional transit authority authorized under chapter 81.112 RCW. A light rail transit system may be designed to share a street right-of-way although it may also use a separate right-of-way. Commuter rail, and low capacity, or excursion rail transit service are not included. 5. "Transportation facility, air" means one of the following transportation facilities: a. "Airport, land-based" means a transportation facility used for the takeoff and landing of airplanes. b. "Airport, water-based" means a transportation facility used exclusively by aircraft that take off and land directly on the water. c. "Heliport" means a transportation facility in which an area on a roof or on the ground is used for the takeoff and landing of helicopters or other steep- gradient aircraft, and one or more of the following services are provided: cargo facilities, maintenance and overhaul, fueling service, tie-down space, and other accessory buildings and open spaces. d. "Helistop" means a transportation facility in which an area on a roof or on the ground is used for the takeoff and landing of helicopters or other steep- gradient aircraft, but not including fueling service, hangars, maintenance, overhaul or tie-down space for more than one aircraft. 6. "Vehicle storage and maintenance" means a use in which facilities for vehicle storage and maintenance are provided. Vehicle storage and maintenance uses include but are not limited to: a. "Bus base" means a transportation facility in which a fleet of buses is stored, maintained, and repaired. b. "Railroad switchyard" means a vehicle storage and maintenance use in which: 1) Rail cars and engines are serviced and repaired; and 2) Rail cars and engines are transferred between tracks and coupled to provide a new train configuration. c. "Railroad switchyard with a mechanized hump" means a railroad switchyard that includes a mechanized classification system operating over an incline. d. "Streetcar maintenance base" means a transportation facility in which a fleet of streetcars is stored, maintained, and repaired. e. "Transportation services, personal" means a vehicle storage and maintenance use in which either emergency transportation to hospitals, or general transportation by car, van, or limousine for a fee is provided. Such uses generally include dispatching offices and facilities for vehicle storage and maintenance. "Traveled way" means the portion of a freeway, expressway, or parkway, and its entrance or exit ramps, or scenic route, exclusive of shoulders, used for the movement of vehicles. "Tree" means a plant defined as a tree in the Sunset Western Garden Book, 7th Edition, 2001. The size of a tree is identified as follows: 1. "Small tree" means a tree identified as a "small tree" in the Department of Transportation's "Recommended Street Trees and Planting Schedules," or a tree not listed in such schedules that is normally expected to have a spread less than or equal to 15 feet in diameter at maturity. 2. "Small/medium tree" means a tree identified as a "small/medium tree" in the Department of Transportation's "Recommended Street Trees and Planting Schedules," or a tree not listed in such schedules that is normally expected to have a spread greater than 15 feet and less than or equal to 20 feet in diameter at maturity. 3. "Medium/large tree" means a tree identified as a "medium/large tree" in the Department of Transportation's "Recommended Street Trees and Planting Schedules," or a tree not listed in such schedules that is normally expected to have a spread greater than 20 and less than or equal to 25 feet in diameter at maturity. 4. "Large tree" means a tree identified as a "large tree" in the Department of Transportation's "Recommended Street Trees and Planting Schedules," or a tree not listed in such schedules that is normally expected to have a spread greater than 25 feet in diameter at maturity. 5. "Large existing tree" means an existing tree with a trunk diameter exceeding 6 inches when measured at 4.5 feet above the ground. (Ord. 127376 , § 87, 2025; Ord. 127375 , § 107, 2025; Ord. 127228 , § 36, 2025; Ord. 127211 , § 18, 2025; Ord. 127099 , § 64, 2024; Ord. 126855 , § 75, 2023; Ord. 126042 , § 7, 2020; Ord. 125854 , § 9, 2019; Ord. 125792 , § 14, 2019; Ord. 125558 , § 62, 2018; Ord. 125272 , § 67, 2017; Ord. 125267 , § 40, 2017; Ord. 124883 , § 17, 2015; Ord. 124843 , § 64, 2015; Ord. 124747 , § 7, 2015; Ord. 124378 , § 94, 2013; Ord. 124172, § 66, 2013; Ord. 123776, § 13, 2011; Ord. 123729, § 7, 2011; Ord. 123649, § 62, 2011; Ord. 123589, § 103, 2011; Ord. 123495, § 90, 2011; Ord. 123046, § 63, 2009; Ord. 122935, § 22, 2009; Ord. 122611 , § 14, 2007; Ord. 122330 , § 3, 2007; Ord. 122311 , § 100, 2006.)