What matters for project planning
Neither the comprehensive plan nor the flood guidance governs remediation itself, but one detail in the guidance is genuinely diagnostic. The city notes that debris caught in local creeks restricts flow and worsens flooding and streambank erosion -- and on the steep, wooded lots common here, that is frequently the upstream half of a recurring moisture problem. A crawl space that has begun taking water after years of staying dry often traces to something that changed outside the house: a blocked channel, an eroded bank, or runoff from a neighboring lot that was regraded. It is worth walking the drainage path before concluding the building is at fault, because cleaning inside will not outlast a cause sitting outside.
Official sources
Verify the property, not just the city
This general background can't confirm one parcel's flood zone, applicable overlay district, permit requirements, or hidden construction—check those specifics with the City of Sandy Springs and your provider before work begins.
Sources reviewed June 20, 2026. External requirements and maps can change.