You have finally decided to build that patio. Or replace your crumbling driveway. Or add a retaining wall to stop your backyard from sliding into your neighbor’s pool.
You called a few contractors. You got quotes. You picked the design. You are ready to start.
Then someone mentions permits. And suddenly, everything stops.
Do you actually need a permit? Who do you call? How long does it take? What happens if you skip it?
If you are a homeowner in Nassau County, these questions are not optional. The County and its towns have some of the strictest building codes in New York State. Ignoring permits can cost you thousands in fines, stop-work orders, and even forced removal of your new masonry work.
At JC Masonry & Concrete, we are a licensed masonry company Nassau County homeowners have trusted for years. We handle permits for every project—so you do not have to guess.
Here is your complete 2026 guide to masonry permits in Nassau County.
First, Understand Nassau County’s Two-Layer System
Nassau County is unique. Unlike Suffolk County (where most towns handle everything), Nassau has a two-layer system:
- Nassau County Department of Public Works (DPW): Handles permits for driveways, curb cuts, sidewalks, and anything affecting the county road right-of-way.
- Your local town or village: Handles permits for patios, retaining walls, pools, sheds, and anything on your private property.
The towns in Nassau County include:
- Town of Hempstead (largest, includes Levittown, Wantagh, Merrick, Bellmore, Seaford, Massapequa, and many more)
- Town of North Hempstead (includes Great Neck, Port Washington, Manhasset, Roslyn, Westbury)
- Town of Oyster Bay (includes Syosset, Plainview, Hicksville, Bethpage, Farmingdale)
Additionally, over 60 incorporated villages (like Garden City, Rockville Centre, Floral Park, and Freeport) have their own building departments with their own rules.
Bottom line: Where you live determines what permit you need and who issues it.
Which Masonry Projects Require a Permit in Nassau County?
Here is the straightforward answer for common masonry projects. But read the fine print below—exceptions matter.
| Project | Permit Required? | Issuing Authority |
|---|---|---|
| Patio (under 200 sq ft, not attached to house) | Usually no | Town/Village |
| Patio (over 200 sq ft) | Yes | Town/Village |
| Patio (attached to house, any size) | Yes | Town/Village |
| Driveway (new or replacement) | Yes | Town/Village + County DPW (if on county road) |
| Retaining wall (under 3 ft tall) | Usually no | Town/Village |
| Retaining wall (3 ft to 4 ft tall) | Yes | Town/Village |
| Retaining wall (over 4 ft tall) | Yes + engineering stamp | Town/Village |
| Walkway (not in right-of-way) | Usually no | Town/Village |
| Walkway (in town/county right-of-way) | Yes | Town/Village or County DPW |
| Outdoor fireplace or kitchen (masonry) | Yes | Town/Village |
| Steps (more than 2 risers) | Yes | Town/Village |
| Pool deck (new or replacement) | Yes | Town/Village |
Permit Requirements by Town (2026)
Let us break down the specific rules for Nassau County’s three towns. Remember, villages within these towns may have stricter rules.
Town of Hempstead (Most of Central and South Shore)
The Town of Hempstead Building Department is the busiest on Long Island. They are strict but predictable.
Patios:
- Under 200 square feet AND not attached to house: No permit
- Over 200 square feet OR attached to house: Permit required ($150-$300)
- Requires site plan showing setbacks (minimum 3 feet from property lines)
Driveways:
- Replacement of existing driveway (same footprint): Permit required ($100-$200)
- New driveway or widening: Permit required + County DPW review if on county road
- Must meet town grading and drainage standards
Retaining walls:
- Under 3 feet tall: No permit
- 3-4 feet tall: Permit required ($200-$400)
- Over 4 feet tall: Permit + stamped engineering plans (add $1,000-$2,000)
Processing time: 2-4 weeks for most permits. Add 2-3 weeks if engineering is required.
Town of North Hempstead (Northwestern Nassau)
North Hempstead has additional environmental review requirements, especially near the waterfront.
Patios:
- Under 150 square feet AND not attached: No permit
- Over 150 square feet OR attached: Permit required ($200-$350)
- Coastal properties may need additional wetland review (add 4-6 weeks)
Driveways:
- Any driveway work requires a permit ($150-$250)
- Must comply with stormwater management rules (no runoff onto roads)
Retaining walls:
- Under 2 feet tall: No permit
- 2-4 feet tall: Permit required ($250-$500)
- Over 4 feet tall: Permit + engineering + possible variance
Processing time: 3-5 weeks standard. 8-12 weeks for coastal properties.
Town of Oyster Bay (Eastern Nassau)
Oyster Bay has the most detailed application requirements but experienced contractors find them straightforward.
Patios:
- Under 200 square feet: No permit
- Over 200 square feet: Permit required ($150-$300)
- Requires two site plan copies and property survey
Driveways:
- Replacement: Permit required ($100-$200)
- New driveway: Permit required + County DPW review + traffic study for commercial properties
Retaining walls:
- Under 3 feet tall: No permit
- 3-4 feet tall: Permit required ($200-$400)
- Over 4 feet tall: Permit + engineering + soil report
Processing time: 2-3 weeks for standard permits. 4-6 weeks for engineered walls.
Incorporated Villages: The Wild Card
If you live in an incorporated village (like Garden City, Rockville Centre, Floral Park, Lynbrook, Malverne, Cedarhurst, Lawrence, or any of the 60+ others), your village has its own building department.
Village rules are often stricter than town rules. For example:
- Garden City: Permits required for ANY patio, any size. Setbacks are 5 feet (not 3 feet).
- Rockville Centre: Retaining walls over 18 inches require a permit.
- Floral Park: Driveway aprons must match village-approved materials.
How to check: Call your village building department directly. Or hire masonry contractors Nassau County who work regularly in your village. We know the local rules.
The County DPW: When You Need Their Approval
The Nassau County Department of Public Works (DPW) gets involved when your project affects a county road or right-of-way.
You need County DPW approval if:
- Your driveway connects to a county road (most major roads: Hempstead Turnpike, Jerusalem Avenue, Merrick Road, Sunrise Highway, etc.)
- You are installing or modifying a sidewalk in the county right-of-way
- You are installing a curb cut (new driveway entrance)
The County DPW process:
- Submit application with site plan and traffic study (for commercial)
- Pay fee ($250-$500 for residential)
- Wait for review (4-8 weeks)
- Receive permit or revision requests
- Schedule inspection after work is complete
Pro tip: Many homeowners do not know if their road is county or town. Look at the street sign. County roads have blue signs with white letters. Town roads have green signs.
What Happens If You Skip the Permit?
You might be tempted to save time and money by skipping the permit. Do not.
Consequences of unpermitted masonry work in Nassau County:
- Stop-work order: A building inspector can show up at any time (often tipped off by a neighbor). They will post a stop-work order on your door. You cannot work until you get a permit.
- Fines: The Town of Hempstead fines start at $500 per day for unpermitted work. Back-dated to the first day of construction.
- Forced removal: If your patio or retaining wall violates setbacks or zoning, the town can order you to remove it at your expense.
- Insurance problems: If someone is injured on unpermitted work, your homeowner’s insurance may deny the claim.
- Sale problems: When you sell your home, the buyer’s attorney will ask for permits for all major work. No permit? The buyer walks away or demands a huge discount.
Real example: A homeowner in Levittown built a beautiful 400-square-foot paver patio without a permit. A neighbor complained about drainage. The Town of Hempstead issued a stop-work order, fined the homeowner $3,000, and required a full survey and permit application. The patio was completed 6 months late and cost $5,000 more than budgeted.
What Information Do You Need to Apply for a Permit?
Whether you apply yourself or your masonry company Nassau County handles it, you will need:
For a patio or walkway:
- Property survey (showing property lines, house location, setbacks)
- Site plan (drawn to scale, showing patio location, dimensions, distance to property lines)
- Material specifications (paver type, base depth, drainage plan)
- Contractor license and insurance (if using a contractor)
For a driveway:
- All of the above, plus:
- Grading plan (showing slope and drainage direction)
- Curb cut details (if new or modified)
- County DPW approval (if on county road)
For a retaining wall:
- All of the above for patios, plus:
- Wall height and length
- Drainage details (weep holes, gravel, drain pipe)
- Engineered plans (for walls over 4 feet)
For a pool deck:
- Pool permit (separate from deck permit)
- Barrier/fencing requirements (Nassau County has strict pool safety codes)
Can Your Contractor Handle Permits for You?
Yes. And they should.
Licensed masonry contractors Nassau County homeowners trust will handle the entire permitting process as part of their service. At JC Masonry & Concrete, we:
- Determine which permits you need (town, village, county, or multiple).
- Prepare all application materials (site plans, surveys, specifications).
- Submit applications and pay fees (we bill you for fees at cost).
- Schedule inspections (footing, base, final).
- Get the certificate of occupancy/completion for your records.
You should never pay a contractor who says “you don’t need a permit” or “just build it and we will be fine.” That contractor is not licensed, not insured, or both.
2026 Permit Fees in Nassau County
Fees vary by town and project size. Here are typical ranges:
| Permit Type | Town of Hempstead | Town of North Hempstead | Town of Oyster Bay |
|---|---|---|---|
| Patio (200-500 sq ft) | $150-$250 | $200-$300 | $150-$250 |
| Driveway (replacement) | $100-$200 | $150-$250 | $100-$200 |
| Retaining wall (3-4 ft) | $200-$400 | $250-$500 | $200-$400 |
| Retaining wall (over 4 ft) | $300-$600 + engineering | $400-$800 + engineering | $300-$600 + engineering |
| Walkway (right-of-way) | $100-$150 | $150-$200 | $100-$150 |
| Pool deck | $150-$300 | $200-$350 | $150-$300 |
Additional costs:
- Property survey (if you do not have one): $500-$1,500
- Engineering plans (for walls over 4 feet): $1,000-$2,500
- County DPW review (if applicable): $250-$500
- Village permit (if applicable): $100-$500 (varies widely)
How Long Does the Permit Process Take?
Patience is required. Here are realistic timelines for Nassau County in 2026:
| Project Type | Town Only | Town + Village | Town + County DPW |
|---|---|---|---|
| Simple patio (under 500 sq ft) | 2-4 weeks | 3-6 weeks | N/A |
| Driveway replacement | 2-4 weeks | 3-6 weeks | 6-10 weeks |
| Retaining wall (under 4 ft) | 3-5 weeks | 4-8 weeks | N/A |
| Retaining wall (over 4 ft) | 6-10 weeks | 8-12 weeks | N/A |
| Patio in coastal/village area | 4-8 weeks | 6-10 weeks | N/A |
Plan ahead. Do not call a contractor in May expecting a patio for Memorial Day. Start the permit process in January or February for spring construction.
Inspections: What Gets Checked?
After your permit is issued, your town or village will inspect your project at specific milestones.
For a patio:
- Base inspection: After excavation and stone base compaction, before laying pavers or pouring concrete.
- Final inspection: After completion. Inspector checks setbacks, drainage, and workmanship.
For a retaining wall:
- Footing inspection: After excavation and rebar placement, before pouring concrete footing.
- Drainage inspection: After gravel and pipe installation, before backfill.
- Final inspection: After wall completion.
For a driveway:
- Base inspection: After excavation and stone base.
- Final inspection: After pour or paving.
If you fail an inspection, you correct the issue and schedule a re-inspection (usually 1-2 weeks later).
Why Choose JC Masonry & Concrete for Your Nassau County Project?
We are not just builders. We are masonry contractors Nassau County homeowners trust to navigate the complex permit process.
When you hire JC Masonry & Concrete, you get:
- Permit expertise. We have worked in every Nassau County town and dozens of villages. We know the rules, the forms, and the inspectors.
- Licensed and insured. We carry full liability and workers’ compensation. Our license number is current and verifiable.
- Fixed pricing. Our quotes include permit fees (we bill at cost) and inspection coordination. No hourly billing for permit running.
- Schedule management. We start the permit process before we dig a single hole. Your project happens on time.
- Peace of mind. No stop-work orders. No fines. No surprises when you sell your home.
Ready to Start Your Masonry Project?
Do not let permits scare you away from the backyard you deserve. The process is manageable—especially with an experienced masonry company Nassau County homeowners recommend.
Contact JC Masonry & Concrete today for a free consultation. We will visit your property, discuss your vision, and explain exactly which permits you need and how long they will take. Then we handle everything while you wait for your beautiful new patio, driveway, or retaining wall.