HomeMy WebLinkAboutEX18_SEPA_DNS-M,_dated_May_5,_2025
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
ENVIRONMENTAL (SEPA) DETERMINATION OF
NON-SIGNIFICANCE - MITIGATED (DNS-M)
Project File Numbers: PR24-000074/LUA24-000367, CU-A, V-A
Project Name: Bull Conditional Use Permit and Critical Areas Variance for Accessory Dwelling Unit
Development
Applicant: Leah and Tristan Bull, 5424 NE 10th St, Renton, WA 98059
Project Location: 5424 NE 10th St, Renton, WA 98059 (APN 1023059365)
Project Description: The applicant is requesting a Conditional Use Permit (CUP) and Critical Areas Variance
to construct a 968 square foot detached Accessory Dwelling Unit (ADU) over a garage at 5424 NE 10th St, Renton,
WA 98059 (APN 1023059365). The 1.26-acre parcel is located in the Residential-4 (R-4) zoning district and is
designated Residential Low Density (RLD) in the Comprehensive Plan. The site currently contains an existing single-
family dwelling unit. According to City of Renton (COR) Maps, the site has identified high erosion hazards, regulated
slopes (>15% & <=40%), a Category II Wetland, and a Type Ns stream (Honey Creek) that flows through the western
portion of the site. The applicant submitted a Geotechnical Engineering Investigation, Wetland and Stream
Delineation Report, and Standard Stream Study with the application.
Lead Agency: City of Renton
Environmental Review Committee
Department of Community & Economic Development
Date of Decision: May 5, 2025
Mitigation Measures:
1. The applicant shall comply with the recommendations outlined in the Geotechnical Evaluation Report,
prepared by GEO Group Northwest, Inc., dated July 27, 2022 (Exhibit 5), as well as any future addenda.
2. The applicant shall prepare and submit an Inadvertent Discovery Plan (IDP) prior to the start of any
ground-disturbing activities. In addition, the applicant shall provide notification to Tribes’ cultural
committee prior to the start of construction per the Duwamish Tribe Comments.
The City of Renton Environmental Review Committee has determined that probable significant environmental
impacts from the proposed project can be mitigated. An Environmental Impact Statement (EIS) is not required
under RCW 43.21C.030(2)(c). Conditions were imposed as mitigation measures by the Environmental Review
Committee under their authority of Section 4-9-070D Renton Municipal Code. These conditions are necessary to
mitigate environmental impacts identified during the environmental review process. Because other agencies of
jurisdiction may be involved, the lead agency will not act on this proposal for fourteen (14) days.
Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on May 19, 2025.
Appeals must be submitted electronically to the City Clerk at cityclerk@rentonwa.gov or delivered to City Hall 1st
floor Lobby Hub Monday through Friday. The appeal fee, normally due at the time an appeal is submitted, will be
collected at a future date if your appeal is submitted electronically. The appeal submitted in person may be paid on
EXHIBIT 18
Docusign Envelope ID: 2EA6AE70-E1DF-4608-B893-F70D28DB91B2
Environmental Review Committee Determination
May 5, 2025
Page 2 of 2
SIGNATURES:
Martin Pastucha, Administrator
Public Works, Chair
Date Anjela Barton, Fire Marshal
Renton Regional Fire Authority
Date
For Maryjane Van Cleave, Administrator
Parks and Recreation
Date For Gina Estep, Administrator Date
Community and Economic Development
the first floor in our Finance Department. Appeals to the Hearing Examiner are governed by RMC 4-8-110 and
additional information regarding the appeal process may be obtained from the City Clerk’s Office,
cityclerk@rentonwa.gov.
Docusign Envelope ID: 2EA6AE70-E1DF-4608-B893-F70D28DB91B2