HomeMy WebLinkAboutPlan Review Comments PRE 12-044
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
M E M O R A N D U M
DATE:
June 20, 2012
TO:
Rocale Timmons, Planner
FROM:
Arneta Henninger, Plan Review
SUBJECT:
S. Warnes Accessory Dwelling Unit
5502 NE 10TH ST
Parcels 102305-9382
PRE 12-044
NOTE: The applicant is cautioned that information contained in this summary is preliminary and non-binding and may be subject to modification and/or concurrence by official city decision-makers.
Review comments may also need to be revised based on site planning and other design changes required by City staff or made by the applicant.
I have completed a preliminary review for the above-referenced proposal of an Accessory Dwelling Unit (ADU) and for a subdivision, located in the vicinity of NE 10th St and Nile Ave
NE, all in Section 10, Township 23N, Range 5E. The following comments are based on the pre-application submittal made to the City of Renton by the applicant for an ADU & a subdivision.
Water:
This site is not located in the City of Renton water service area. It is located in Water District 90.
This project is not located in the Aquifer Protection Zone.
A Certificate of Water Available will be required to be submitted with the formal application.
Per the City of Renton Fire Marshal, the fire flow for a single family home is 1,000 gpm minimum for dwellings up to 3,600 square feet (including garage and basements). If the dwelling
exceeds 3,600 square feet, a minimum of 1,500 gpm fire flow would be required. This distance is measured along the travel route. See comments from Fire Marshal.
There are no existing fire hydrants within 300 feet; hence, the project will be required to install an additional fire hydrant. The existing fire hydrants may need to be fitted with
stortz fittings to bring them up to current City code.
Sanitary Sewer:
This site is located in the City of Renton sewer service area.
There is an existing 8” concrete sanitary sewer main in NE 10th St. See City of Renton drawing S0155 for details.
See City of Renton drawing # R-3441 for AsBuilt plans showing the location of the two sewer connections to the sewer main as drawn by the PLS (Oct. 2009). The new ADU needs to connect
to the existing sewer line that is located on the same lot as the ADU.
If the applicant wants to apply for a subdivision on the north lot the project, plans will need to show how it will provide the new lot(s) with separate sanitary sewer service (to the
main).
Sanitary Sewer System Development Charges (SDC)are based on the size of the domestic water meter, but will only be triggered by an additional water meter or upsizing an existing water
meter. This fee shall be paid prior to project closeout.
Storm Drainage:
The project will need to show in a plan how the new unit(s) will handle the storm runoff.
An ADU would trigger a residential storm connection permit following approval of the plan noted above.
A subdivision would trigger a small drainage review as defined in the City of Renton Amendments to the 2009 King County Surface Water Drainage Manual.
The Surface Water SDC fees are $1,012 per dwelling unit for both the ADU and the subdivision. These fees are collected at the time a construction permit is issued or prior to project
closeout.
Street Improvements:
Offsite improvements of curb, gutter, and sidewalk were all installed per AsBuilt drawing R-3441; hence, additional improvements will not be required for either the ADU or a new subdivision
unless the new subdivision fronts additional right-of-way not fronted under the Warnes Short Plat.
General:
All required utility, drainage, and street improvements will require separate plan submittals prepared according to City of Renton drafting standards by a licensed Civil Engineer.
All plans shall be tied to a minimum of two of the City of Renton Horizontal and Vertical Control Network.
Permit application must include an itemized cost estimate for these improvements. Half of the fee must be paid upon application for building and construction permits, and the remainder
when the permits are issued. There may be additional fees for water service related expenses. See Drafting Standards.
cc: Kayren Kittrick, Development Engineering Supervisor