HomeMy WebLinkAboutEX_17_C_Transportation_Concurrency_250530DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
M E M O R A N D U M
DATE: May 30, 2025
TO: Jill Ding, Senior Planner
FROM: Nathan Janders, Development Engineering Manager
SUBJECT: Traffic Concurrency Test – Windsor Court
(APN 6623400232, 6623400233)
LUA25-000148
The applicant is requesting Preliminary Plat approval, Environmental (SEPA) Review, and Site Plan
Review for the subdivision of an existing 111,381 square foot (2.56 acre) site into 20 lots for the
future construction of single family residences and two tract (Tracts A and B). The project site is
comprised of two (2) parcels located within the Residential-14 zone. The project site is currently
developed with two single family residences and associated detached accessory structures,
proposed for removal. Access to the site is proposed via a new 53-foot wide public right-of-way
off 108th Ave S. In addition, a 20-foot wide secondary emergency access tract (Tract B) is
proposed along the northern portion of the property to provide emergency access. According to
COR Maps, a Wellhead Protection Area, Zone 1 Modified and slopes with a grade of between 15
percent and 25 percent are mapped on site. A Type F stream is mapped offsite to the east.
The proposed development would generate an increase of approximately 154 weekday daily
trips. During the weekday AM peak hour, the project would generate an increase of 11 weekday
AM peak hour (2 in, 9 out). During the weekday PM peak hour, the project would generate an
increase of approximately 15 net new trips (10 in, 5 out). The proposed project passes the City
of Renton Traffic Concurrency Test per RMC 4-6-070.D as follows:
Traffic Concurrency Test Criteria Pass
Implementation of citywide Transportation Plan Yes
Within allowed growth levels Yes
Project subject to transportation mitigation or impact fees Yes
Site specific street improvements to be completed by project Yes
EXHIBIT 17
Docusign Envelope ID: DF429B06-CA80-4493-87D6-C67576B95CF2
Transportation Concurrency Test – Windsor Court:
Page 2 of 3
May 30, 2025
Traffic Concurrency Test Passes
Evaluation of Test Criteria
Implementation of citywide Transportation Plan: The City’s investment in completion of the
forecast traffic improvements is 100% of the scheduled expenditure through 2025.
Within allowed growth levels: The citywide traffic concurrency trip capacity for concurrency with
the city adopted model for 2025 is 2,289 trips, which provides sufficient capacity to
accommodate approximately 15 additional trips from this project. A resulting 2,274 trips are
remaining.
Project subject to transportation mitigation or impact fees: The project will be subject to
transportation impact fees at time of building permit for the project.
Site specific street improvements to be completed by project: The project will be required to
complete frontage street improvements prior to recording of the final plat. Any additional off-
site improvements identified through land use approval will also be completed prior to recording
of the final plat.
Background Information on Traffic Concurrency Test for Renton
The City of Renton Traffic Concurrency requirements for proposed development projects are
covered under Renton Municipal Code (RMC) 4-6-070. The specific concurrency test requirement
is covered in RMC 4-6-070.D, which is listed for reference:
D. CONCURRENCY REVIEW PROCESS:
1. Test Required: A concurrency test shall be conducted by the Department for each
nonexempt development activity. The concurrency test shall determine consistency with
the adopted Citywide Level of Service Index and Concurrency Management System
established in the Transportation Element of the Renton Comprehensive Plan, according
to rules and procedures established by the Department. The Department shall issue an
initial concurrency test result describing the outcome of the concurrency test.
2. Written Finding Required: Prior to approval of any nonexempt development activity
permit application, a written finding of concurrency shall be made by the City as part of
the development permit approval. The finding of concurrency shall be made by the
decision maker with the authority to approve the accompanying development permits
required for a development activity. A written finding of concurrency shall apply only to
the specific land uses, densities, intensities, and development project described in the
application and development permit.
3. Failure of Test: If no reconsideration is requested, or if upon reconsideration a project
fails the concurrency test, the project application shall be denied by the decision maker
with the authority to approve the accompanying development activity permit application.
Docusign Envelope ID: DF429B06-CA80-4493-87D6-C67576B95CF2
Transportation Concurrency Test – Windsor Court:
Page 3 of 3
May 30, 2025
The Concurrency Management System established in the Transportation Element on page XI-65
of the Comprehensive Plan states the following:
Based upon the test of the citywide Transportation Plan, consideration of growth levels
included in the LOS-tested Transportation Plan, payment of a Transportation Mitigation
Fee, and an application of site specific mitigation, development will have met City of
Renton concurrency requirements.
Docusign Envelope ID: DF429B06-CA80-4493-87D6-C67576B95CF2