Maryland Building Permit Costs by County
| County | Base Permit | Impact Fees | Total Estimate | Notes |
|---|---|---|---|---|
| Montgomery County | $4,500–$11,000 | $10,000–$22,000 | $14,500–$33,000 | Bethesda / Chevy Chase — highest in MD |
| Howard County | $3,800–$9,500 | $9,000–$20,000 | $12,800–$29,500 | Columbia / Ellicott City |
| Anne Arundel County | $3,500–$9,000 | $8,500–$19,000 | $12,000–$28,000 | Annapolis / Glen Burnie + Bay access |
| Prince George's County | $3,000–$8,000 | $7,500–$16,000 | $10,500–$24,000 | DC suburb — eastern side |
| Frederick County | $2,500–$6,500 | $6,500–$14,000 | $9,000–$20,500 | Frederick city — MD value option |
| Baltimore County | $2,500–$6,500 | $6,000–$13,000 | $8,500–$19,500 | Baltimore County (not city) |
| Harford County | $2,200–$5,500 | $5,500–$12,000 | $7,700–$17,500 | Bel Air / Aberdeen — NE MD |
| Carroll County | $2,000–$5,000 | $5,000–$11,000 | $7,000–$16,000 | Westminster — MD rural value |
| Charles County | $2,000–$5,000 | $5,000–$11,000 | $7,000–$16,000 | Waldorf — southern MD suburb |
| Wicomico County | $1,500–$3,800 | $2,500–$6,000 | $4,000–$9,800 | Salisbury — Eastern Shore value |
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Frequently Asked Questions
How much does a building permit cost in Maryland?
A building permit for new construction in Maryland costs $12,000–$38,000 total depending on county. Montgomery County (Bethesda, Chevy Chase) is the most expensive at $14,500–$33,000 due to DC proximity and high-quality school districts. Wicomico County (Salisbury, Eastern Shore) is the most affordable major market at $4,000–$9,800. Maryland has some of the highest impact fees in the Mid-Atlantic, driven by DC suburb growth and Chesapeake Bay infrastructure requirements.
What is the Chesapeake Bay Critical Area and how does it affect Maryland permits?
Maryland's Chesapeake Bay Critical Area Law regulates construction within 1,000 feet of tidal waters and wetlands throughout the Chesapeake Bay watershed. New construction in this area requires Critical Area review, which adds 4–12 weeks and $300–$2,000 in fees. Properties in Anne Arundel, Calvert, Charles, Dorchester, Queen Anne's, St. Mary's, and Talbot Counties are most commonly affected. Critical Area regulations restrict impervious surface, require vegetated buffers, and may limit building footprint.
What is MDE review and when does it apply in Maryland?
MDE (Maryland Department of the Environment) review applies to construction involving wetlands, floodplains, or areas with groundwater impacts. An MDE Nontidal Wetland Permit is required for any fill or disturbance of non-tidal wetlands — common on properties with drainage features, stream corridors, or low-lying areas. MDE review adds 4–16 weeks and $100–$3,000 depending on scope. Always have a wetland delineation conducted ($800–$2,500) before purchasing Maryland property with any drainage features.
Montgomery County vs Frederick County permit costs?
Montgomery County permits run $14,500–$33,000 total vs Frederick County at $9,000–$20,500 — a difference of up to $12,500. Frederick County offers excellent MARC commuter rail access to DC and Baltimore at significantly lower permit costs and land prices. For buyers who don't require a specific Montgomery County school district, Frederick County is one of Maryland's best build values — growing rapidly but not yet at Montgomery County fee levels.
How long does it take to get a building permit in Maryland?
Montgomery County takes 7–13 weeks. Howard County takes 6–11 weeks. Anne Arundel County takes 6–10 weeks. Frederick County takes 5–9 weeks. Baltimore County takes 5–9 weeks. Chesapeake Bay Critical Area review adds 4–12 weeks. MDE wetland review adds 4–16 additional weeks where applicable. Maryland's combined permit complexity (state + county + Bay requirements) makes it one of the more complex Mid-Atlantic states for new construction permitting.
Related Maryland Build Guides
Maryland has complex environmental permits
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