Paver Installation in Orinda, CA

Usually yes for anything beyond a like-for-like replacement. Any work that touches the public-street connection — curb cuts, driveway aprons, sidewalk modifications — requires an Encroachment Permit from Public Works. A like-for-like paver replacement that doesn't touch the curb usually doesn't need a building permit, but expansions, grade changes, and any project that alters site drainage may. We pull the Encroachment Permit on every project that needs one and handle the entire submittal at the city counter.

Properties inside the Ridgeline & Environmental Preservation Overlay District have to disclose the overlay on planning applications, and projects that affect ridge silhouettes, mature trees, or natural drainage patterns get additional Planning Department review. We confirm overlay status before scoping, design within the constraints, and submit the package as part of the project — you don't navigate it on your own.

Yes. On developed property, Orinda requires a tree permit for any oak species 12 inches in diameter or larger. Excavation inside the drip line — even for a paver subbase — typically triggers review. We coordinate arborist sign-off, hand-dig where machine excavation isn't safe for roots, and design the patio edge to respect the canopy. The April 2025 ordinance update (Ord 25-03) added review factors but didn't change the diameter thresholds.

A grading permit is required if the project moves 50 cubic yards or more of earth, or creates a cut slope steeper than 2:1 horizontal-to-vertical at heights over 7 feet. Most paver driveways and patios on hillside lots cross one or both thresholds. The permit requires a geotechnical report on most steep sites, which we coordinate. Budget 4–6 weeks of permitting time on hillside projects of any meaningful scope.

Wilder and Orindawoods both have active HOA design review with their own architectural guidelines — submittal package, sometimes a review meeting, and a stamp before town permitting. Orinda Country Club has club-level architecture review for many member parcels. We've been through these processes many times — we draft the submittal package, walk it through to approval, and then file with the city as part of the project.

Almost certainly not. Full Provision C.3 review is triggered at 10,000 square feet of impervious surface created or replaced, and most single-family residential projects fall well below that. But Orinda's creek-proximity lots and the city's overall watershed sensitivity mean pervious paver systems are still a recognized compliance pathway and good neighbor practice — especially in Sleepy Hollow and Lost Valley where homes back onto Lauterwasser or San Pablo Creek tributaries.

Within 10 feet of a property line — or in any required setback, whichever is greater — retaining walls are limited to 4 feet in height. Elsewhere on the lot, walls can go up to 8 feet. Anything taller requires an Exception Permit. Walls over 3 feet require a building permit and engineered plans. We coordinate the structural engineer and the permit submittal; you don't manage the engineering chain.

Because the ground underneath moves with the seasons, and a standard 4-inch base cannot absorb it. Orinda is the type locality of the Orinda Formation — montmorillonite-rich expansive clay with documented landslide history and significant seasonal soil movement, so standard 4-inch aggregate base prep fails here within a few wet seasons. Our Orinda build spec uses a 6–8 inch compacted Class II aggregate base installed in lifts, geotextile separation fabric over compacted subgrade, edge restraints, and polymeric sand joints. Pavers flex with the soil; concrete cracks and asphalt ruts. That's why a properly built paver install on Orinda clay outlasts both alternatives by decades.