Next year the impact fees on new development in two local school districts will increase slightly, but one will drop drastically.

School impact fees are based on a school’s capital facilities plan and is designed to offset the impact of growth to a district by requiring new development to pay for the facilities that will be associated with the families that move in to the homes.

The fees apply to residential development only and can only be applied by the district to capital projects, not operations or maintenance.

For the Renton School District, which compromises the majority of the city, single-family home impact fees will increase by $102 per dwelling unit to $5,643 per home. For multi-family development, the fee will be $1,385, an increase of $25 from 2015.

Approximately 5 percent of the city falls in the Issaquah School District. For development in that area, the impact fees on a single family home will increase by $75 to $4,635 while multi-family developments will see an increase of $76 per unit to $1,534.

Another small section of the city falls within the borders of the Kent School District, where developers will get a discount compared to this year. Impact fees on single-family residential homes will drop by Nearly $500 to $4,990 while the multi-family fee will be reduced to $2,163, down a whopping $1,215 from this year.

The ordinance was approved Nov. 23.