Mack Engineering

Cherokee County Commercial Land Disturbance Permits: 20 Questions Owners Ask Us

If you are planning a retail building, office, flex warehouse, medical office, restaurant or self-storage project in unincorporated Cherokee County, the land disturbance permit (LDP) is the gate between a zoning approval and a building permit. These are the twenty questions we field most often from owners, brokers and tenants, answered from the county’s own…

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ADUs in Milton and Alpharetta, GA: Design Variables, Feasibility, Stormwater, Utilities and Fire Flow

A detached guest house, in-law suite or pool house with a bedroom is one of the most requested projects we see in North Fulton. It is also one of the most frequently abandoned, usually after a homeowner has already paid for drawings. The reasons are rarely architectural. They are zoning, stormwater, septic, and fire access.…

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Structural Engineering for Residential Renovations: Why Stamped Framing and Foundation Plans Pay for Themselves

Most renovation problems that show up a year after move-in are not workmanship problems. The drywall seam that cracks every winter, the hardwood floor that developed a hump along the old wall line, the pocket door that will not latch, the sag you can see when you sight down the new beam: these are load…

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NPDES Plans in Cherokee County, GA: What It Really Means

Quick answer: In Cherokee County, “NPDES plan” means the Erosion, Sedimentation and Pollution Control (ES&PC) plan required by Georgia’s NPDES construction stormwater general permits (GAR100001, GAR100002 or GAR100003) for any project disturbing one acre or more, or part of a larger common development. The plan must be prepared, signed and sealed by a GSWCC Level…

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Building ADUs in Atlanta, GA: The Variables to Understand Before You Spend Money on Design

Quick answer: As of October 2026, the City of Atlanta allows one detached accessory dwelling unit of up to 750 square feet and 20 feet in height on lots zoned R-4, R-4A or R-5. Attached and basement ADUs, 1,000-square-foot units and 24-foot heights are proposals that have not been adopted. Before paying for architectural design,…

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Forsyth County LDP Plans: What You Need to Know (Cumming, GA)

Quick answer: In Forsyth County, no excavation, grading, filling, clearing or grubbing may begin without a Land Disturbance Permit issued under the Unified Development Code and Soil Erosion Ordinance 73. Plans are submitted to Planning and Community Development by 5:00 p.m. on Mondays, a plan review meeting with every reviewing department follows nine business days…

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Land Development Tips and Tricks: Shop for Property With Your Engineer, Not After

Quick answer: The cheapest engineering on a land development project is the engineering you buy before you own the land. Developers who shop for property with their civil and stormwater engineer on retainer screen parcels in days, pay for full feasibility only on finalists, and negotiate contract contingencies around real limits. Developers who order feasibility…

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Top Construction Management Services for Residential Developers

Quick answer: The construction management services that matter most to residential developers are pre-construction constructability and budget review, permitting and agency coordination, bid packaging and contractor procurement, schedule control, erosion control and NPDES compliance oversight, field quality observation, cost and change order control, utility coordination, lender and investor reporting, and closeout. Together they keep a…

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