Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Cambria Home Additions & ADU: The Long Beach Owner’s Guide
Cambria home additions and ADU projects in Long Beach typically run $45,000 – $130,000 for a permitted addition, with ADU construction landing between $90,000 – $220,000 depending on size, foundation work, and finish level. We plan, permit, and build these projects with Cambria quartz surfaces specified from day one, and we carry the full Cambria design line book in our Long Beach office so you can touch samples before a single line is drawn.
Most Long Beach owners realize their existing space has stopped working for them the week a second child starts walking, or the month an aging parent moves in and the hallway suddenly feels like a bottleneck. The part that failed isn’t a mechanical piece, it’s the floor plan itself. The good news: a home addition or detached ADU in Long Beach is a solved problem when you work with a contractor who understands coastal setbacks, soil conditions, and the city’s ADU ordinance. Graham Stein has been navigating those exact requirements for well over a decade, and the same two-person crew stays on your job from the first day to the last.
Key takeaways:
- A Cambria-specified home addition or ADU in Long Beach costs $45,000 – $220,000 depending on scope.
- Written price before any work starts, every time, no change orders that surprise you later.
- Cambria quartz is specified, ordered, and templated by us; we handle the fabricator coordination so the slabs arrive matched to your design.
- 365-Day Done Right Promise on every completed project.
- Live person answers the phone 24/7 at (562) 512-7086.
Which Cambria Models This Applies To
Cambria doesn’t make “parts” in the traditional sense; it makes quartz slabs in 60+ designs that get fabricated into countertops, waterfall islands, backsplashes, and shower surrounds for your new addition or ADU. The compatibility question is really about which Cambria designs work for your specific application. Not every design is rated for every use. For example, Cambria’s Gloss finish is not recommended for high-traffic kitchen islands in homes with young kids, because fine scratches show more readily than they do on the Matte finish. In Long Beach, where sunlight pours through west-facing windows for hours each day, we steer families toward designs with subtle veining and lighter tones rather than dark high-contrast slabs that show etching and hard-water spotting faster.
Cambria designs are grouped into families: Marble looks, granite looks, concrete looks, and solid colors. Within each family, slab sizes are consistent (roughly 132″ x 65″ for jumbo slabs), but the edge profile and thickness you choose (typically 2cm or 3cm) changes the fabrication cost and the look. For ADU kitchens where counter space is modest, we often specify 2cm slabs with a built-up edge to make them visually heavier without the full 3cm cost. On a large home addition island, 3cm with a waterfall edge is the standard we recommend. These are real decisions, and we walk you through them with the physical Cambria samples in hand, not a PDF.
One thing to know: Cambria is not sold as aftermarket stock. There is no “OEM vs aftermarket” decision the way there would be for a faucet cartridge or a cabinet hinge. What you’re buying is a specific slab, cut to your design, from Cambria’s fabrication network. We handle that ordering and templating process from end to end, including the final measure after your cabinets are set, because a template taken before cabinet installation is the single most common cause of botched countertop installs we’re called to fix in Long Beach.
Styles & brands we work with
Signs Your Home Has Outgrown Its Current Footprint
A failed floor plan shows up differently than a failed part, but the symptoms are just as identifiable. Here’s what we hear from Long Beach families before they call us:
- You’re walking sideways between furniture and walls. Not a design preference, a circulation failure. When doorways under 32″ and hallways under 36″ force constant sidestepping, the footprint has stopped functioning for the people in it. This is the most common trigger for a bedroom extension or a family room addition in the Long Beach cottages and bungalows we renovate.
- A parent or adult child is moving in, and the bathroom isn’t accessible. Adding an ADU with a zero-threshold shower and a Cambria shower surround solves this without anyone giving up dignity or privacy. The alternative, a shared hall bathroom, is what most families tell us they were trying to avoid.
- You’re paying for storage units instead of square footage. When the garage has become a $400-a-month closet, a garage conversion or a small home addition with real closets pays for itself faster than most people think. We convert garages all over Long Beach, and the $30,000 – $80,000 range often pencils out against five years of storage fees.
- The dishwasher, the kids’ homework, and the dinner prep all happen on the same 4-foot stretch of counter. A kitchen addition with a Cambria island in the $45,000 – $130,000 home addition range gives the family a working surface that doesn’t require rotating shifts. We hear this exact scenario from families in Belmont Shore and Naples every month.
- You’ve looked at moving, and the numbers don’t work. Long Beach home prices and mortgage rates often make a $90,000 – $220,000 ADU or a $45,000 – $130,000 addition the better financial move than a new house. Graham Stein keeps a pencil sketch of these trade-offs on graph paper at his kitchen table, and he’ll walk you through the same math before you commit to anything.
See the difference
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AfterReplacement Cost & What’s Included
In Long Beach, expect the following ranges for the work we complete with Cambria surfaces specified:
- Home Addition (bedroom, family room, kitchen extension): $45,000 – $130,000, with the range driven by foundation type, roof tie-in complexity, and finish level. A single-story bump-out on a concrete slab is at the lower end; a second-story addition with re-engineering falls higher.
- ADU Construction (detached): $90,000 – $220,000. The spread exists because a basic 400-square-foot studio ADU with a galley kitchen costs dramatically less than a two-bedroom 800-square-foot ADU with a full Cambria island and a tiled bath.
- Garage Conversion to Living Space: $30,000 – $80,000, depending on whether the slab needs leveling, the electrical service needs an upgrade, and whether you’re adding a kitchenette or a full bath.
Every one of those ranges includes a written, itemized price before any work starts. No estimates that grow after the crew arrives. No change orders that appear when the slab ordering deadline hits. Included on every job: shoe covers and drop cloths at the door, quiet tools during family rest hours where possible, pet-safe product choices where available, and a photo of the clean-up before the crew leaves each day. The 365-Day Done Right Promise covers every completed project.
Cambria slab pricing is included as a line item, not buried in “miscellaneous.” You’ll see the exact design name, the square footage, and the per-foot fabrication rate. You’ll also see the permit fees, the engineering cost, and the dumpster charges as their own lines. If you want to compare Cambria pricing against Silestone or Caesarstone for the same layout, we’ll show you all three side by side.
DIY or Call Us?
For a home addition or ADU, the honest answer is: this is not a DIY job. Permitting, foundation work, structural engineering, electrical, plumbing, and countertop templating all require licensed professionals. Long Beach requires permits and inspections for additions and ADUs, and doing the work unpermitted can block a future sale of your home. This isn’t a scare tactic; it’s the reason we pull permits on every job and pass every inspection before we ask for the final check.
What you can do before you call us: measure your lot’s available side and rear yard space, check your property’s zoning on the city’s GIS map, and think hard about how the space needs to function five years from now, not just six months. Then call (562) 512-7086. We’ll schedule a walkthrough, and Graham will bring the same graph-paper diligence to your project that he’s brought to every Long Beach addition and ADU he’s built since learning the trade at Los Angeles Trade-Technical College.
FAQs
Cambria quartz is non-porous and resists staining, scratching, and bacterial growth; with basic care, it lasts 20 – 30 years or more. In Long Beach’s salt air and hard water, we recommend wiping down with warm water and a mild soap, and avoiding abrasive cleaners that dull the finish. Cambria’s warranty covers the slab for as long as you own the home, and we’ll walk you through registering it after install.
Small chips and scratches can sometimes be filled or polished by a fabricator, but deep cracks or burns usually require a section replacement or a full slab replacement. If you have a damaged Cambria surface in an existing Long Beach kitchen, call us at (562) 512-7086 and we’ll send someone to look at it. We’ll give you a written price for the repair or replacement before any work begins.
A typical Long Beach home addition takes 4 – 8 months from design approval to final inspection; an ADU generally takes 6 – 12 months depending on permit review times and site conditions. We’ll give you a written timeline in your scope of work, and the same crew stays on your job from the first day to the last, so you’re never explaining your project to a new face every week.
We keep the full Cambria design line book and physical samples in our Long Beach office, and we bring the shortlist to your house so you can see the slabs in your actual light. Cambria’s website will show you photos, but quartz looks different under your kitchen’s lighting than it does in a showroom. Call (562) 512-7086 to schedule a time and we’ll bring the samples to you.
If you’re ready to get a real number for your Long Beach home addition or ADU, call us at (562) 512-7086. A live person answers, and we’ll schedule your free estimate. The price we write down on day one is the price on the invoice when we’re done.
Written by Graham Stein, Owner, Elmstead Remodeling Long Beach at Elmstead Remodeling Long Beach, serving Long Beach and nearby areas.
