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Home My WebLink AboutERC_Report_Duvall_Office_FINALDEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT Project Location Map ERC_Report_Duvall_Office_FINAL ENVIRONMENTAL REVIEW COMMITTEE REPORT ERC Meeting Date: December 12, 2022 Project File Number: PR19-000471 Project Name: Duvall and 17th LLC Office Land Use File Number: LUA22-000374, ECF, MOD Project Manager: Jill Ding, Senior Planner Owner: 1625 Duvall Realty Investors LLC, 15309 SE 49th Pl, Bellevue, WA 98006 Applicant: Kevin Broderick, Broderick Architects, 55 S Atlantic St, Suite 301, Seattle, WA 98134 Contact: Shawn Keenan, Broderick Architects, 55 S Atlantic St, Suite 301, Seattle, WA 98134 Project Location: 1625 Duvall Ave NE, Renton, WA, 98059 Project Summary: The applicant is requesting a Minor Site Plan Modification and Environmental (SEPA) Review for a 5,784 gross sq. ft. general office building (2,629 sq. ft. parking garage plus 249 sq. ft. ground floor plus 2,906 sq. ft. upper floor) and 12 parking spaces. The proposal would modify the previously approved Site Plan, Environmental (SEPA) Review, two (2) street standards Modifications, and a refuse and recycling Modification (LUA19-000300) for the Duvall and 17th Dental Office. The proposed changes include an increase in the upper floor building footprint from 2,647 sq. ft. to 2,906 sq. ft., an increase of 259 sq. ft. or 7%. The proposal would result in an increase in building lot coverage, from 2,982 sq. ft. to 3,233 sq. ft., an increase of 251 SF or 8%. The proposal would also result in a decrease in impervious surface coverage, from 5,587 sq. ft. to 4,944 sq. ft., a decrease of 643 sq. ft. or 9%. In addition, a reduction in the 15-foot setback required along NE 17th Street has been requested, the proposed setback would be 0 feet. The project site totals 8,417 sq. ft. and is located within the Commercial Arterial (CA) zoning designation and Urban Design District D. An existing building is proposed for removal. Access to the site is proposed via driveway access off of NE 17th St. Frontage improvements including curb and gutter, a landscape strip and sidewalk are proposed along the site's Duvall Ave NE and NE 17th St street frontages in accordance with the previously approved street standards modification. Sensitive Slopes are mapped on the project site. Exist. Bldg. Area SF: N/A Proposed New Bldg. Area (footprint): Proposed New Bldg. Area (gross): 3,233 5,784 Site Area: 8,417 Total Building Area GSF: 5,784 STAFF RECOMMENDATION: Staff Recommends that the Environmental Review Committee issue a Determination of Non-Significance (DNS). DocuSign Envelope ID: 1169B1FC-4E5A-4A85-B963-8EA37D86CF02 City of Renton Department of Community & Economic Development Duvall and 17th LLC Office Staff Report to the Environmental Review Committee LUA22-000374, ECF, MOD Report of December 12, 2022 Page 2 of 4 ERC_Report_Duvall_Office_FINAL ENVIRONMENTAL REVIEW In compliance with RCW 43.21C.240, the following environmental (SEPA) review addresses only those project impacts that are not adequately addressed under existing development standards and environmental regulations. A. Environmental Threshold Recommendation Based on analysis of probable impacts from the proposal, staff recommends that the Responsible Officials: Issue a DNS with a 14-day Appeal Period. B. Exhibits Exhibit 1: Environmental Review Committee (ERC) Report Exhibit 2: SEPA Determination of Non-Significance for LUA19-000300 and associated Exhibits Exhibit 3: Colored Site Plan Exhibit 4: Colored Landscape Plan Exhibit 5: Colored Architectural Elevations Exhibit 6: Floor Plans Exhibit 7: Building Sections Exhibit 8: Technical Information Report, prepared by Terra Forma Design Group, dated October 25, 2022 Exhibit 9: Generalized Utility Plan Exhibit 10: Conceptual Grading and Drainage Plan Exhibit 11: Advisory Notes Exhibit 12: Transportation Concurrency C. Environmental Impacts The Proposal was circulated and reviewed by various City Departments and Divisions to determine whether the applicant has adequately identified and addressed environmental impacts anticipated to occur in conjunction with the proposed development. Staff reviewers have identified that the proposal is likely to have the following probable impacts: 1. Earth Impacts: The applicant submitted a Geotech Report, prepared by Associated Earth Sciences, Inc., dated March 8, 2018 (Exhibit 2) with the original project application materials for LUA19-000300. The subject property is currently developed with an existing residence, which was converted to an office. The topography of the project site is relatively flat, except where there are some slopes along the north and east portions of the project site. A modular block retaining wall with a maximum height of 6 feet is located along the east property line. The modular block wall extends around the northeastern corner of the property where it abuts an existing 6-foot high rockery. Twin ecology block retaining walls with a height of 8 feet, are also located along the southern property line where there is a grade change between the project site and the property to the south. Between the two (2) ecology block walls, there is a cast in place concrete retaining wall with a maximum height of 11-12 feet. The total relief across the project site is approximately 7 feet. Approximately 2,423 cubic yards of material would be removed from the project site during project construction. The central portion of the site would be excavated for the construction of the building and DocuSign Envelope ID: 1169B1FC-4E5A-4A85-B963-8EA37D86CF02 City of Renton Department of Community & Economic Development Duvall and 17th LLC Office Staff Report to the Environmental Review Committee LUA22-000374, ECF, MOD Report of December 12, 2022 Page 3 of 4 ERC_Report_Duvall_Office_FINAL underground parking area. The grades along the east and north portion of the site would be lowered to near street level. Three (3) test borings were conducted on the project site to depths of 2.5 to 5 feet. The sediments generally consisted of medium dense to very dense, granular glacial sediments. The natural sediments were overlain in places with fill. The report concludes that the onsite soils are suitable for the proposed development. Recommendations were provided for site development, including site preparation and fill, foundations, lateral wall pressures, floor support, drainage, storm water infiltration, and project design and construction monitoring. It is anticipated that the City’s clearing and grading regulations would adequately mitigate any construction related earth impacts, therefore no further mitigation is recommended. Mitigation Measures: None recommended. Nexus: N/A 2. Water a. Storm Water Impacts: The applicant submitted a Technical Information Report (TIR), prepared by Terra Forma Design Group, dated October 25, 2022 (Exhibit 8). Onsite vegetation consists of lawn and a couple non-significant trees. The existing surface water runoff generally sheet flows towards NE 17th Street. There are currently no onsite drainage facilities. The existing onsite impervious area totals 2,820 sq. ft. Based on the City of Renton’s flow control map, the site falls within the City’s Flow Control Duration Standard Matching Forested Site Conditions and is within the May Creek Drainage Basin. The project is subject to a Full Drainage review in accordance with the 20 22 City of Renton Surface Water Design Manual (RSWDM). The TIR (Exhibit 8) discusses all nine (9) core requirements and all six (6) special requirements. The proposed project would result in a total of new and replaced impervious area of 5,511 square feet, with 2,691 square feet of new impervious area and 1,700 square feet of onsite pollution generated impervious area. According to the submitted TIR, the proposal would result in a 0.11 CFS, which would exempt the project from providing a flow control facility. As the proposal would result in less than 5,000 square feet of pollution generating impervious surface, the proposal woul d be exempt from providing a water quality facility. The proposed drainage system would consist of underground stormwater drains, which would predominately discharge to the existing storm system in NE 17th Street. The project proposal would be required to comply with the 2022 City of Renton Surface Water Design Manual. It is anticipated that the City’s adopted storm water regulations would adequately mitigate new surface water impacts. Mitigation Measures: None recommended. Nexus: N/A 3. Transportation Impacts: A Traffic Impact Analysis (TIA) per City standards is required if the new development will generate new vehicular traffic exceeding 20 vehicles per hour in either the AM and PM peak periods. The project proposes to remove the existing 2,370 square foot office building and construct a 3,155 net square foot general office building. The Transportation Engineers Institute Trip Generation Manual, 11th Edition anticipates that the project would generate approximately 8 net new average weekday daily trips. During the weekday AM peak hour, the project would generate approximately 1 net new trips (0 inbound and 1 DocuSign Envelope ID: 1169B1FC-4E5A-4A85-B963-8EA37D86CF02 City of Renton Department of Community & Economic Development Duvall and 17th LLC Office Staff Report to the Environmental Review Committee LUA22-000374, ECF, MOD Report of December 12, 2022 Page 4 of 4 ERC_Report_Duvall_Office_FINAL outbound). During the weekday PM peak hour, the project would generate approximately 2 net new trips (0 inbound and 2 outbound). As the proposal would not generate 20 new AM or PM peak hour trips, a TIA was not be required to be submitted with the application materials. A Transportation Concurrency Memo (Exhibit 12) was prepared for the project proposal, the proposal passed the Transportation Concurrency Test. It is anticipated that the payment of required transportation impact fees would mitigate for new trips generated by the project proposal, therefore no further mitigation is recommended. Mitigation Measures: None recommended. Nexus: N/A D. Comments of Reviewing Departments The proposal has been circulated to City Department and Division Reviewers. Where applicable, their comments have been incorporated into the text of this report and/or “Advisory Notes to Applicant.” ✓ Copies of all Review Comments are contained in the Official File and may be attached to this report. The Environmental Determination decision will become final if the decision is not appealed within the 14-day appeal period (RCW 43.21.C.075(3); WAC 197-11-680). Environmental Determination Appeal Process: Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on December 28, 2022. 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 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: 1169B1FC-4E5A-4A85-B963-8EA37D86CF02 CITY OF RENTON DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT STAFF REPORT TO THE ENVIRONMENTAL REVIEW COMMITTEE EXHIBITS Project Name: Duvall and 17th LLC Office Land Use File Number: LUA22-000374, ECF, MOD Date of Meeting December 12, 2022 Staff Contact Jill Ding Senior Planner Project Contact/Applicant Kevin Broderick Broderick Architects 55 S Atlantic St, Suite 301, Seattle, WA 98134 Project Location 1625 Duvall Ave NE, Renton, WA, 98059 The following exhibits are included with the ERC Report: Exhibit 1: Environmental Review Committee (ERC) Report Exhibit 2: SEPA Determination of Non-Significance for LUA19-000300 and associated Exhibits Exhibit 3: Colored Site Plan Exhibit 4: Colored Landscape Plan Exhibit 5: Colored Architectural Elevations Exhibit 6: Floor Plans Exhibit 7: Building Sections Exhibit 8: Technical Information Report, prepared by Terra Forma Design Group, dated October 25, 2022 Exhibit 9: Generalized Utility Plan Exhibit 10: Conceptual Grading and Drainage Plan Exhibit 11: Advisory Notes Exhibit 12: Transportation Concurrency DocuSign Envelope ID: 1169B1FC-4E5A-4A85-B963-8EA37D86CF02