Renovation & repair · decision guide
Driveway Paving: Permits, Impervious Surface Rules, and 25-Year Cost
The per-square-foot install quote is only part of the number. Whether you need a permit, how wide your local code allows, and which material actually costs less over 25 years all change the real answer — before or after the crew shows up.
A new driveway generally needs a permit; a like-for-like resurface usually doesn't. Some cities also cap driveway width and total lot coverage, and charge a stormwater fee based on your impervious surface — so a wider driveway can raise an ongoing bill, not just the one-time cost. And asphalt's lower install price doesn't mean lower cost over the driveway's full life.
Do you need a permit?
The model residential building code, IRC R105.2, requires a permit for driveways serving a one- or two-family home. In practice, most jurisdictions treat replacing an existing driveway in the same footprint with a similar material as maintenance, exempt from a new permit — but that exemption is not universal, and it disappears the moment you change the footprint, widen the driveway, or switch from gravel to a paved surface. A reputable contractor should know your jurisdiction's rule; ask them to confirm rather than assume.
Skipping a required permit isn't just a compliance risk — an unpermitted driveway can complicate a future home sale if it surfaces during a buyer's inspection or title search.
Impervious surface: the rule that changes your driveway's size, not just its price
A driveway is impervious surface — pavement that stormwater cannot soak through — alongside your roof, patio, and any deck. Many municipalities run a stormwater utility fee based on how much impervious surface a property carries, and some, like the City of Raleigh, require a survey or plot plan showing existing and proposed impervious-surface calculations as part of a residential stormwater permit.
Two limits show up repeatedly across jurisdictions, per doineedapermit.org's compiled 2026 guide, though the specific numbers vary by city and zoning district:
- Driveway width caps — commonly 12–20 feet for a residential driveway, specifically to limit how much of the lot gets paved.
- Total lot coverage caps — commonly 40–60% of the parcel across all impervious surfaces combined, which a large driveway can push a property toward or over.
If you're planning to widen a driveway, add a parking pad, or pave over what used to be lawn, check your local stormwater and zoning rules before finalizing the design — permeable pavement is accepted, and sometimes required, in jurisdictions with tighter runoff rules, particularly in the Northeast and Pacific Northwest.
25-year cost: asphalt vs. concrete, not just the install quote
Angi and HomeAdvisor put a new asphalt driveway at $7–$13 per square foot installed and a new concrete one at $8–$18 per square foot for standard finishes. Asphalt looks like the cheaper choice — and it is, upfront. But the two materials age completely differently, per This Old House: asphalt typically lasts 20–30 years and needs resealing every few years (Angi's dedicated sealing pages price that at roughly $1.25–$1.50 per square foot per application); concrete typically lasts 50 years or more and needs comparatively little routine maintenance.
| Over 25 years, a 600 sq ft driveway | Asphalt | Concrete |
|---|---|---|
| Install (midpoint $/sq ft) | $6,000 (@ $10) | $7,800 (@ $13) |
| Resealing (every ~3 yrs, ~7 cycles @ $1.35/sq ft) | ≈ $5,700 | Not required |
| Approx. 25-year total, materials only | ≈ $11,700 | ≈ $7,800 |
Illustrative arithmetic on a 600 sq ft driveway using the midpoints of the sourced per-square-foot ranges above; actual quotes vary by region, base condition, and finish. Concrete's 50+ year lifespan means it likely won't need full replacement inside a 25-year window at all, where asphalt at the low end of its lifespan might.
The reversal is real: asphalt is the cheaper material to install and the more expensive one to own across a 25-year horizon once resealing is priced in. That doesn't make concrete the right answer for every climate — asphalt handles freeze-thaw flexing better in cold regions, which is a separate, non-cost reason some homeowners choose it anyway.
Run your numbers
Price your own driveway install and sealing
Compare asphalt and concrete for your square footage, plus lifetime sealing cost — no signup.
Where your gutters discharge matters to a new driveway too — runoff dumped at the edge of a fresh paved surface is a common cause of early edge cracking and erosion underneath it.
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Frequently asked questions
Do I need a permit to pave a new driveway?+
Under the model residential building code (IRC R105.2), a new driveway serving a one- or two-family home generally requires a permit. Replacing an existing driveway in the same footprint with a similar material is typically treated as maintenance and exempt in most jurisdictions — but 'most' isn't universal, so check with your local building department before assuming either way.
Can a stormwater fee change the cost of my driveway project?+
Yes, in municipalities that charge a stormwater utility fee, since that fee is typically based on how much impervious surface (roofs, driveways, patios, decks) a property has. Expanding a driveway can raise your ongoing stormwater fee, not just the one-time paving cost, and some jurisdictions cap total lot coverage or require a permeable surface in certain zones.
Is asphalt or concrete cheaper over the driveway's full lifespan, not just to install?+
Asphalt costs less to install per square foot but needs resealing every few years and typically lasts 20-30 years. Concrete costs more upfront but needs little routine maintenance and typically lasts 50+ years. Run the numbers over a comparable time horizon rather than comparing only the install quote — the cheaper material to install is not always the cheaper one to own.
What's the maximum driveway width allowed by most cities?+
Many jurisdictions cap residential driveway width at roughly 12-20 feet, and some cap total impervious lot coverage at 40-60% of the parcel, specifically to limit stormwater runoff. These limits vary significantly by city and lot zoning, so check your local code before finalizing a driveway design wider than a single car width.
Methodology
Install and sealing cost ranges are national 2026 estimates from Angi and This Old House and vary by region, base condition, and finish. The 25-year comparison is illustrative arithmetic built from those sourced per-square-foot ranges, not a separate published figure. Permit and impervious-surface rules are drawn from IRC R105.2, the City of Raleigh's published stormwater permitting FAQs, and a compiled 2026 guide to driveway permits; exact requirements, fees, and caps vary by jurisdiction, so confirm with your local building or stormwater department before finalizing a design.
Sources
- Angi — How Much Does an Asphalt Driveway Cost? [2026 Data] — accessed 2026-09-01
- This Old House — Determining Which Driveway Surface Is Best for You — accessed 2026-09-01
- Angi — How Much Does It Cost to Seal an Asphalt Driveway? [2026 Data] — accessed 2026-09-01
- City of Raleigh — Stormwater FAQs for Residential Permitting — accessed 2026-09-02
- doineedapermit.org — Complete Guide to New Driveway Permits (2026) — accessed 2026-09-02