If you make changes to impervious cover on your property, expect your drainage charge to change. However, there may be a lag time before changes are reflected in your charge. Changes that may affect your charge include increasing your parking, building an addition or adding a deck or shed. Removing impervious cover will reduce your charge. If you have removed impervious cover, please call 512-494-9400 to let us know, so we can adjust your charge for you sooner.
If you want an estimate of how changes to your property will affect your drainage charge, use the Drainage Charge Estimator.