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BZA limits impervious coverage after DC Enclosures seeks larger increase; board approves with cap

Cobb County Board of Zoning Appeals · January 15, 2026
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Summary

DC Enclosures requested an increase in lot impervious coverage and setback reductions for a sunroom/deck replacement; the board approved work but limited impervious coverage to the zoning maximum (40%) and encouraged mitigation planning with Stormwater Management.

DC Enclosures, representing a Palisades Court homeowner, requested a larger impervious-coverage allowance and setback reductions to replace an aging deck with a new deck and sunroom. The applicant said the deck is unsafe and the work would allow safer outdoor space and family use.

Cobb Stormwater Management noted the lot type (RA-4) typically allows 40% impervious coverage and said increases could be acceptable if the applicant demonstrates on-site mitigation. The applicant supplied a survey and agreed to work with stormwater on mitigation options such as underground piping, rain gardens or permeable pavers. The board approved the variance while limiting total impervious coverage to 40% and encouraging the applicant to meet stormwater staff to finalize mitigation during permitting. Vote was 5–0.