What is concrete block paving and why is it so common?
Concrete block paving is a surface made from factory-produced concrete units laid tightly together on a bed of grit, locked by sand-filled joints and held at the edges by kerbs. It is common because it balances cost, appearance and repairability better than most alternatives for domestic and light commercial areas.
Unlike a poured slab, a block paved surface is not one rigid piece. Loads from cars and people are spread from block to block through the joints, so the surface tolerates small movements in the ground without cracking across. If a service pipe underneath needs attention, or a section settles, the blocks can be lifted, the base corrected and the same units put back. On a Spanish villa where water, irrigation and electrical lines often run under the drive, that is a practical advantage.
Concrete pavers are also predictable. Because they are manufactured to a standard, the dimensions, finish and tolerances of one pallet match the next, which makes laying faster and the finished surface more even than with irregular materials. For areas that will be driven on daily, this consistency is often worth more than the character of natural stone.
Which formats and finishes can you choose from?
The main families are rectangular blocks, interlocking shapes such as the double-T, large-format units and mixed-size systems. Within each family there are different thicknesses, surface finishes and colour blends, so the same layout can look very different depending on the product.
- Rectangular blocks: the most versatile shape, suited to herringbone, stretcher bond and basket-weave patterns
- Double-T and other interlocking shapes: units whose profile keys into the neighbouring blocks, often chosen for heavily used yards
- Large-format blocks: bigger units that give a calmer, more contemporary look on patios and courtyards
- Mixed-size or multi-format systems: several sizes from the same range laid in a random-looking but repeating layout
- Blended colours: pavers with shades mixed through the batch, which hide dust and tyre marks better than a single flat colour
Many concrete pavers are produced in two layers, known in Spain as bicapa: a structural core and a thinner, finer top layer that carries the colour and texture. The top layer gives a denser, more uniform face, while the core provides the body of the block. When comparing products, ask whether the paver is single-layer or double-layer and what thickness the manufacturer specifies for vehicle use.
The finish also matters in practice. Smooth faces look crisp but show wear and stains sooner on a busy drive; textured or tumbled faces disguise marks and sit more naturally beside rustic stone walls. A short look at samples on site, in the actual light of your plot, usually settles the question faster than a catalogue.
How is the right block chosen for cars, vans or foot traffic?
The heavier and more frequent the traffic, the thicker the block, the stronger the base and the more interlocking the pattern should be. A garden path, a family drive and a yard used by delivery vans are three different specifications, even if the paver looks the same from above.
For pedestrian paths and terraces, a thinner block on a modest sub-base is generally sufficient. For a private drive where cars turn and brake, a thicker block, a herringbone pattern and a deeper compacted base are the usual combination. Where vans or occasional heavier vehicles are expected, the base design becomes the main concern, and a bound layer may be considered. The exact thickness for each use should follow the manufacturer's data for the chosen product, which we check before ordering.
Pattern plays its part. Herringbone at forty-five or ninety degrees locks the blocks in two directions and copes well with turning wheels, while stretcher bond running across the direction of travel is more vulnerable to creeping. Our guide to laying patterns shows each option and where it fits. If the area is mainly a drive or a communal parking area, our sister site for block paved driveways covers vehicle access in more depth.
How do you lay concrete block paving on a slope or under trees?
On a slope, the key is firm edge restraint at the bottom, a well-compacted base and controlled water run-off so the bed is not washed out. Under trees, the issue is roots: the base has to be built so that roots are not cut carelessly and future growth is anticipated.
Sloping drives are common on hillside plots from Benahavís to the Axarquía. Water running down a paved slope gathers speed and looks for weak joints, so intermediate channels or cross-drains are often included to break up the flow. The blocks are laid from the bottom upwards against a solid kerb, and the pattern is chosen so that the joints do not form continuous lines running downhill.
Laying a drive under mature trees calls for a conversation before any digging. Some roots can be bridged or protected, others make paving in that spot a poor idea. Our article on why block paving is not right for every property discusses those situations frankly, and if existing paving has already been lifted by roots, the sister site's page on paving damaged by tree roots explains the repair options.
What does the base under concrete block paving look like?
A typical build-up consists of compacted natural ground, a layer of compacted granular sub-base, a thin bed of grit, the pavers and jointing sand. The depth of each layer depends on the ground and the traffic, and the edging must be in place before the blocks are laid.
The sub-base, usually a crushed granular material called zahorra in Spain, is spread and compacted in layers to the correct levels and falls. The laying bed is screeded to an even thickness so that every block sits on the same support; it is not used to correct levels, which is the job of the sub-base. After laying, jointing sand is brushed in and the surface is vibrated with a plate compactor fitted with a protective pad, then topped up with more sand.
Where the ground is weak or the area is heavily used, a bound layer such as soil-cement or a concrete slab can be added. Our page on the concrete base for paving explains when that is worth doing, and the guide to layers and base describes each layer in detail with a cross-section.
Can you resurface a car park or communal area with concrete blocks?
Yes. Car parks, communal paths and shared entrances are well suited to concrete block paving because sections can be lifted for services and repaired without breaking out the whole surface. For communities of owners, the work normally needs approval by the owners' meeting first.
On a larger shared area, the planning focuses on keeping part of the space usable while work progresses, marking out bays or walkways with contrasting blocks if wanted, and coordinating drainage with existing gullies. Under Spain's Horizontal Property Law, work on common elements needs a resolution of the owners' meeting under article 17; the community administrator confirms the exact majority for a given job. The guide to permits and rules summarises these points.
If the existing surface is asphalt or broken concrete, it has to be removed and the rubble taken to an authorised route before new paving goes down. That process is described on our page about replacing old paving. Old kerbs and drains are checked at the same time, because they set the levels for the new surface.
What affects the cost of concrete block paving?
Cost depends mostly on the area, the state of the ground, the depth of base needed, access for machinery and the paver chosen. Edging, steps and cutting around drains or manhole covers also add time. Patterns with many cuts, such as herringbone against curved borders, take longer to lay as well.
Figures for the whole network are kept on one site to avoid contradictions. See block paving prices per square metre for the current reference, or use the paving cost calculator for a rough band. The article on what a paving quote should include helps you check that two quotes describe the same job. Send us a photo and the approximate m² – free, no-obligation quote.
Frequently asked questions
What thickness of concrete paver do I need for a driveway?
A driveway used by cars generally calls for a thicker block than a garden path, combined with a deeper base and an interlocking pattern. The exact thickness should follow the manufacturer's recommendation for vehicle traffic for the specific product, which we check before quoting.
What does bicapa mean on a paver specification?
Bicapa means a double-layer paver: a structural concrete core with a finer top layer that carries the colour and surface texture. The top layer gives a denser, more uniform face. Single-layer pavers have the same mix throughout their full thickness.
Which standard covers concrete block paving in Spain?
Concrete paving blocks are covered by UNE-EN 1338, with the Spanish national complement UNE 127338. The standard defines requirements and test methods, so it gives a common reference when comparing products from different manufacturers or reading a technical data sheet.
Is herringbone really better for drives?
Herringbone laid at forty-five or ninety degrees interlocks the blocks in two directions, which helps resist the forces of turning and braking wheels. Other patterns can perform well with good edging and base, but herringbone is the usual first choice for vehicle areas.
Will the colour of concrete pavers fade in the sun?
Strong sun and weathering gradually soften the surface colour of most concrete pavers. How much depends on the product and finish. Blended colours tend to hide the change better than single flat shades. A faded but sound surface can later be renovated rather than replaced.
Can concrete block paving be laid on a steep slope?
It can, with a firm kerb at the bottom, a well-compacted base and measures to break up water running downhill, such as cross channels. The pattern is chosen so joints do not form continuous downhill lines. Very steep drives need individual assessment before paving is chosen.
What is jointing sand for?
Jointing sand fills the gaps between blocks so that loads are shared across the surface and the pavers lock together. Without full joints, blocks can rock and shift. Sand is brushed in, vibrated down and topped up, and may need refilling after the first heavy rains.
Can I reuse my existing concrete pavers?
If the existing blocks are intact and still available to match, they can sometimes be lifted, cleaned and relaid on a corrected base. Broken or very worn blocks are replaced. We assess this at the visit, because reuse depends on condition and quantity.
Why do some blocks show white marks after laying?
White deposits on new concrete pavers are often efflorescence, salts carried to the surface by moisture. It is a common phenomenon with concrete products and usually reduces with weathering. We point it out at handover so it is not mistaken for damage.
Do you supply the pavers or can I buy my own?
Both options are possible. We can supply pavers that suit the use and style, or lay material you have bought yourself, provided it is suitable and enough is delivered to the site. The quote states clearly who supplies which materials.