Belgian Block Driveway Apron: Layout, Installation, Asphalt Transitions and Permits

A Belgian block driveway apron is the section of driveway nearest the street paved with rectangular granite blocks (often called Belgian block or cobblestone) instead of asphalt or concrete. It's popular for the classic look and because the heavy blocks, set in concrete, resist the turning and plowing forces that tear up asphalt at the entrance. A durable install sets the blocks in a concrete bed over a compacted stone base, with mortared or tight joints, a solid edge where it meets the asphalt, and a slope that drains toward the gutter. Because the apron often sits in the public right-of-way, check permit rules first.

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What Belgian Block Is

Traditional Belgian block is quarried granite cut into roughly rectangular blocks with split or sawn faces, historically used for streets. Today it's sold new and reclaimed in several sizes, commonly around 4 by 7 by 10 inches ("jumbo" sizes are larger). Colors range from gray to pink, charcoal and mixed. Concrete look-alike blocks are also available at lower cost.

Why an Apron?

• Durability at the entrance, where cars turn, brake and scuff
• Plow resistance: blocks set in concrete handle blades better than asphalt edges
• Curb appeal: a defined entrance frames the driveway
• Clean transition from street to driveway, especially where the street is reconstructed often

Common Layouts

Layout	Look	Notes
Full apron field	Whole entrance in block	Most material and labor; most dramatic
Border band	One to three rows across the entrance	Budget-friendly; defines the entry
Running bond	Staggered joints	Strong and traditional
Fan or arc pattern	Curved rows	Decorative; more cutting
Block curb plus asphalt apron	Blocks along the sides only	Protects edges; lower cost

If you like the look along the whole driveway, our guide to an asphalt driveway with a brick border covers borders set beside asphalt.

Installation Basics

1. Get permits if the apron is in the right-of-way or involves the curb. See our curb cut guide.
2. Excavate deep enough for base, concrete bed and block height.
3. Compact a crushed stone base in lifts.
4. Set blocks in a concrete bed. Contractors commonly place a layer of concrete and set each block into it, tapping to grade with a rubber mallet. Strings and a level keep lines and slope true.
5. Fill joints with mortar or a suitable jointing compound, tooled neatly. Some installers use tight joints with polymeric materials, but mortared joints are common for vehicular aprons.
6. Cure before traffic, following the concrete supplier's guidance.
7. Pave or patch the asphalt up to the block edge.

Setting blocks in sand alone, as with some patios, tends to shift under turning cars at a driveway entrance.

Joining the Apron to Asphalt

The joint between blocks and asphalt is where problems start. Best practices:

• A straight, solid line of blocks set in concrete as the edge restraint
• Asphalt compacted tight against the blocks, finished flush or very slightly above so water runs toward the gutter, not into the joint
• Seal the joint with a flexible crack sealant after the asphalt cures
• Avoid a step that snowplows can catch

If you're paving the driveway at the same time, estimate asphalt with our driveway asphalt calculator, subtracting the apron area.

Drainage at the Street

The apron should keep the gutter line flowing. Many towns require a specific drop from the driveway to the gutter or a depressed curb profile. Slope the apron so water runs toward the street, not back toward the garage, and don't block the gutter with a raised lip.

How Many Blocks?

Count blocks per square foot based on the block size and joint width. For example, with 4 by 10 inch faces laid flat plus roughly 1/2-inch joints, each block covers about 4.5 × 10.5 = 47 square inches, so about 3 blocks per square foot. A 12 by 6 foot apron (72 square feet) would need about 220 blocks plus extra for cuts and breakage. Suppliers can confirm counts for their block sizes.

Reclaimed vs New Block

Reclaimed Belgian block, pulled from old streets, has weathered faces and irregular sizes that many people love for historic homes. It can vary more in height, which means more work setting it level. New block is more uniform and easier to set in straight lines. Either way, look at a pallet before buying so the color and size mix match what you want.

Cost Factors

Costs vary by region and year. The main drivers are block type (new granite, reclaimed granite or concrete look-alike), area, pattern complexity, excavation depth, concrete and base quantities, permit and right-of-way requirements, and whether curbs or sidewalks are involved.

Maintenance

• Inspect mortar joints each spring and repoint cracked areas
• Seal the asphalt-to-block joint as needed
• Replace or reset any loose blocks promptly
• Use a plastic snow shovel or plow shoes to reduce scraping
• Remove weeds from joints early
• Clean with a stiff brush and water; avoid harsh acid cleaners on mortar unless the product is suitable

Belgian Block vs Concrete or Asphalt Aprons

Concrete aprons are durable and common, especially where towns require them in the right-of-way. Asphalt aprons are cheapest and quickest but most vulnerable to turning damage and plows. Belgian block costs more but combines durability with a distinctive look.

Bottom Line on Belgian Block Driveway Aprons

A Belgian block apron adds curb appeal and toughness at the entrance where driveways take the most abuse. Set blocks in concrete over a compacted base, keep the asphalt joint tight and sealed, maintain drainage toward the gutter, and check permit rules before you dig.