- +1 (760) 774-5333
- jeff@jfkbuilder.com
- 74-710 Hwy 111, Ste 102, Palm Desert, CA 92260
- Mon - Fri 7:00am - 5:00pm Saturday 9:00am - 3:00pm
At Kellner Construction LLC, every ADU and casita we build centers on one goal: creating livable space that performs for decades. We are not here to offer shortcuts or rushed timelines. Our focus is on proper foundation work, accurate framing, and meticulous finish details that stand up to daily use. Every structure we deliver is treated with the same level of care, ensuring it functions efficiently, safely, and reliably from the first day forward.
Building a casita or ADU requires honest planning, reliable craftsmanship, and attention to every structural detail. We handle foundation work, framing, plumbing, and electrical with care and precision so your backyard guest house is safe, durable, and comfortable. Each step is completed properly, from permit coordination through final inspection, so you get a finished space that meets code and serves your family for years.
We evaluate your property layout, zoning requirements, and utility access to plan your casita construction.
We pour the foundation, assemble structural framing, and complete the rough-in plumbing and electrical work.
We install drywall, fixtures, and finishes, then conduct a complete walkthrough to verify quality.
Every casita and ADU project follows a clear code of practice. You’ll receive honest estimates, transparent timelines, and direct communication from start to finish. We don’t cut corners on materials or structural work, and every phase is explained in plain language so you stay informed and confident throughout the build.
We deliver usable square footage that fits your household's needs without relocating.
A completed casita opens the door to steady monthly rental revenue from long-term tenants.
Permitted accessory dwelling units add measurable resale value to your home.
Use your ADU as a guest house, home office, or aging-in-place suite.
Detached structures give visitors comfort without crowding your main living area.
Quality framing, foundation work, and materials ensure your casita performs for decades.
Casitas and ADUs require site-specific foundation design, engineered framing, proper utility rough-ins, and full compliance with local zoning. Every structure undergoes inspection at multiple stages to confirm structural integrity, electrical safety, and plumbing code adherence. Attention to setback rules, fire-rated assemblies, and energy-code insulation protects your investment and ensures occupancy approval without costly rework or delays.
Every casita and ADU project starts with detailed site evaluation and code compliance verification.
Every framing, foundation, and finish step is handled with precision to ensure structural integrity.
Quality lumber, concrete, and fixtures support long-term stability and weather resistance.
You receive clear explanations of permit timelines, construction phases, and project milestones throughout the build.
Most projects take three to six months from permit approval to final inspection. Timeline depends on the size of your unit, site conditions, and the complexity of your design choices.
You’ll need building permits, structural engineering plans, and possibly zoning variances depending on your lot. We help you navigate the application process and coordinate with local building departments throughout.
Yes, in most cases you can rent your ADU long-term or short-term depending on local ordinances. Check your city’s specific rental regulations before listing, as some areas restrict short-term vacation rentals.
A detached unit stands alone in your yard with separate utilities and entry. An attached unit shares a wall with your main house but has its own entrance and kitchen facilities.
We manage the complete construction from foundation pour through final finishes. That includes framing, plumbing, electrical rough-in, insulation, drywall, and exterior siding so you get a turnkey guest house.
Contact Kellner construction LLC for a detailed consultation, honest pricing, and casita or ADU construction built to last in Palm Desert.
