Public Works and Buildings | Street Impact Fees
2. An impact fee shall not be assessed for the following types of development activity because the activity either does not create additional demand as provided in RCW 82.02.050 and/or is a project improvement (as opposed to a system improvement) under RCW 82.02.090: a. Miscellaneous non-traffic generating improvements, including, but not limited to, fences, walls, swimming pools, sheds, and signs;
for which the gross square footage of the building will not be increased by more than 100 square feet. For the terms of this requirement, “replacement” is satisfied by submitting a complete building permit application. 3. For a change in use of an existing building or dwelling unit, including any alteration, expansion, replacement or new accessory building, the impact fee for the new use shall be reduced by an amount equal to the current impact fee rate for the prior use; provided, that the applicant has previously paid the required impact fee for the original use. 4. For mixed use developments, impact fees shall be imposed for the proportionate share of each land use based on the applicable measurement in the impact fee rates set forth in SDC 21.08.050K. 5. Applicants seeking a building permit for a change in use shall be required to pay an impact fee if the change in use increases the existing trip generation by the lesser of five percent or 10 peak hour trips. 6. Except as provided in SDC 21.08.050C., impact fees shall be assessed and collected, at the option of the applicant, either: a. At the time of final plat (for platted development) or building permit application (for nonplatted development); or
b. Demolition or moving of a structure;
c. Expansion of an existing nonresidential structure that results in the addition of 100 square feet or less of gross floor area; d. Expansion of a residential structure provided the expansion does not result in the creation of any additional dwelling units as defined in SDC 21.04.040B.93. through SDC 21.04.040B.98.; e. Replacement of a residential structure with a new residential structure at the same site or lot when such replacement occurs within 12 months of the demolition or destruction of the prior structure. For the terms of this requirement, “replacement” is satisfied by submitting a complete building permit application; f. Replacement of a nonresidential structure with a new nonresidential structure of the same size and use at the same site or lot when such replacement occurs within 12 months of the demolition or destruction of the prior structure. Replacement of a nonresidential structure with a new nonresidential structure of the same size shall be interpreted to include any structure
b. At the time of building permit issuance;
which option shall be declared at the time of final plat (for platted development) or building permit application
578 | Title 21: Sammamish Development Code
Effective | January 1, 2022
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