Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Belgard Home Additions & ADU: The Sacramento Owner's Guide
Belgard home additions and ADU construction in Sacramento typically runs $45,000 – $130,000 for a full addition, while a detached ADU built with Belgard pavers, retaining walls, and hardscape integration lands between $90,000 – $220,000 depending on square footage, foundation type, and site prep. We install Belgard-compatible hardscape and structural elements as part of larger addition and ADU builds, and we can usually get your project scoped and priced within one site visit. Most homeowners discover they need us when the existing hardscape around a planned addition starts shifting, or when they realize the new structure requires retaining walls, permeable pavers, or paver driveways that the original Belgard product line was never designed to support.
Which Belgard Models This Applies To
The Belgard product line that intersects with home additions and ADUs in Sacramento splits into three broad families: pavers and slabs (Cambridge Cobble, Holland Stone, Mega-Arbel, Lafitt), retaining walls (Diamond Pro, Weston Stone, BelAir Wall), and permeable pavers (Aqua Roc, Eco Dublin). The compatibility gotcha most Sacramento homeowners hit: a Belgard paver rated for a patio is not automatically rated for a driveway or an ADU foundation approach. You need a minimum 80mm paver thickness for vehicular loads in our clay-heavy soil, and the base prep differs from what Belgard's standard patio installation guide shows. For retaining walls, residential walls over 36 inches in Sacramento County require an engineered design and a permit, regardless of which Belgard block you pick. We can read the lot plan, the soil report, and the Belgard spec sheet together so the wall or paver driveway that frames your ADU does not become the reason the inspector red-tags the whole project.
Styles & brands we work with
Signs Your Belgard Home Additions & ADU Is Failing
- Pavers sinking or heaving at the edge of the existing patio or driveway. In East Sacramento and Land Park, we regularly see this where the original base was only 2 – 3 inches of road base over expansive clay. Clay swells with winter rain and shrinks in summer heat, and the pavers telegraph the movement.
- Retaining wall leaning or bowing outward. A Belgard wall that has not moved in five years can start leaning the month you break ground on an addition, because excavation changes how water flows across the property. The wall needs drainage relief, not just re-stacking.
- Water pooling against the foundation of the new or existing structure. Belgard permeable pavers are designed to drain, but they only work if the base below them is prepared for infiltration. A standard base traps water and sends it sideways toward the house.
- Cracks running through paver surfaces near the planned ADU site. This usually means vehicle or equipment load exceeded the paver spec during construction access. An 80mm paver handles a car; a concrete truck needs steel plates and a different access route.
- Belgard wall caps loosening or shifting. Caps are the first thing to come loose when a wall is not pinned or adhered per Belgard's installation spec. It looks like a cosmetic issue, but it is often the first sign that the wall body is moving behind it.
See the difference
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After
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AfterReplacement Cost & What's Included
For a home addition with Belgard hardscape integration in Sacramento, you are looking at $45,000 – $130,000 for the building itself, and the Belgard work (paver driveway, retaining wall, patio around the addition) typically adds $7,000 – $18,000 for paver driveways, $3,500 – $11,000 for paver patios, and $4,500 – $12,000 for walkways, depending on square footage, access, and whether we are fixing a failed base or building new. An ADU with Belgard site work runs $90,000 – $220,000 all in. What drives the range: the size of the structure, whether the existing hardscape base can be salvaged, drainage requirements, and whether the city requires an engineered retaining wall plan. Every job gets a written, line-item price before we start. The number on day one is the number on the invoice. And the work carries our 365-Day Done Right Promise: if it is not done right, we make it right, backed in writing.
DIY or Call Us?
You can absolutely check a few things yourself before calling: look at whether water is pooling against the existing hardscape, measure the paver thickness where you are planning the addition, and check your lot map for existing drainage easements near the ADU site. What you should not do is dig out and rebuild a Belgard retaining wall over 36 inches, reset pavers on a failed base, or pour any concrete for an addition without a soil check. Those are where DIY jobs go wrong in Sacramento, and by the time we are called in, the repair costs double because the bad base has to be torn out before the good work starts. If you are planning an addition or ADU and want the Belgard site work done right the first time, call us at (279) 300-1177 and ask for a free estimate. Trevor Nash will walk the site, tell you straight what the Belgard scope involves, and put the price in writing.
FAQs
A properly installed Belgard paver driveway with an 80mm paver and an 8 – 10 inch compacted base will typically last 20 – 30 years in Sacramento's climate. The failure point is almost never the paver itself; it is the base. If you inherited a driveway where the base was skimped, you may see movement in 5 – 7 years. Call (279) 300-1177 and we will tell you what you actually have under the surface.
In most cases, yes. If the pavers are structurally sound and match the pattern you want, we can lift, clean, re-grade the base, and reset them as part of the larger project. The caveat is that pavers that have already cracked from load stress should not be reused in vehicular areas. We will give you a straight answer on site.
A typical paver patio or retaining wall component runs 3 – 7 working days. A full home addition with hardscape integration is a 3 – 6 month project, and an ADU with site work runs 5 – 9 months from first inspection to final walk. Permitting timelines with the city of Sacramento and Sacramento County vary, and we manage every permit for you. We will give you a written schedule along with the written price before any work begins.
We stock the most common Belgard paver lines and wall block used in Sacramento additions and ADU builds, including Cambridge Cobble, Holland Stone, and Diamond Pro wall systems. Specialty Belgard products and hard-to-match colors are ordered from regional Belgard distributors, typically within 3 – 10 business days. If you need to match an existing Belgard installation, bring us a photo and a paver measurement, and we will source the exact match.
Written by Trevor Nash, Owner, Penhallow Remodeling Sacramento at Penhallow Remodeling Sacramento, serving Sacramento and nearby areas.
