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Development Engineering
ATTENTION: DEVELOPMENT ENGINEERING CUSTOMERS
DOORS ARE LOCKED - UPDATE (3/30/2020)
Due to recommendations under the "Stay Home, Stay Healthy" proclamation issued by Gov. Jay Inslee, Development Engineering will be operating the office via email or phone FOR EMERGENCY SEWER SERVICE REPAIRS only, until at least Monday 4/13/2020.
Development Engineering is still issuing sewer service repair permits, and performing related inspections as we are able (via remote video/photo if possible). Thank you for understanding.
If you have any emergency related Development Engineering questions, staff can be contacted by Email or by telephone (206-742-6420). Otherwise, Email staff and we will attempt to respond to you as soon as we can.
The Development Engineering (DE) department of Lakehaven Water and Sewer District manages several areas including Certificates of Availability, new water & sewer service connections, new development projects, & information regarding existing water & sewer system facilities. Below are links to current fees & charges, as well as our department's FAQs by PDF. Click on the links to the left for more specific information and documents & forms.
Fees, Charges & Deposits Schedules
Lakehaven Water & Sewer
Development Engineering FAQs by PDF
Development Engineering Staff Availability to Public
New hours effective June 10, 2019
Monday through Thursday....8AM to 4:30PM Friday......................................8AM to 3:30PM
These hours apply only to DE Staff located in the Water Shop Building: 31623 1st Ave. S., Federal Way, WA.
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Development Engineering
Physical Address
31623 1st Avenue S
Federal Way, WA 98003
Mailing Address
P.O. Box 4249
Federal Way, WA 98063
Contact Developement Engineering about
- Service Availability
- Permits
- Property Development Projects
Business Hours:
Mon - Thurs 8AM - 4:30PM
Friday 8AM - 3:30PM
Holiday Closures