Planning, Development & Construction Resources

Are you developing in the City of Sammamish? If you are applying for a land use permit, building permit, or clearing and grading permit, drainage review may be required.

Links to Stormwater Codes and Design Requirements

CITY STORMWATER CODES

SURFACE WATER DESIGN REQUIREMENTS FOR PROJECT APPLICATIONS SUBMITTED AFTER December 31, 2016

If you have submitted an application for a project after December 31, 2016, or if you have submitted a subdivision application before December 31, 2016, but start construction after January 1, 2022 the following surface water design requirements apply:

See the Maps and GIS Data webpage for mapped flow control, water quality, landslide hazard drainage and erosion hazard areas as they relate to these requirements.

FORMS

SURFACE WATER DESIGN REQUIREMENTS FOR PROJECT APPLICATIONS SUBMITTED BEFORE December 31, 2016

If you have submitted an application for a project before December 31, 2016 the following surface water design requirements apply:

See the Maps and GIS Data webpage for mapped flow control, water quality, landslide hazard drainage (pre-2017) and erosion hazard areas as they relate to these requirements.

FORMS

OTHER RESOURCES

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