If you are searching for a adu construction contractor in Cathedral City, CA, Niem Construction delivers the experience, licensing, and local knowledge your project demands. Positioned between Palm Springs and Rancho Mirage, Cathedral City offers a diverse, family-friendly community with an active downtown district, a growing arts scene, and some of the most accessible home prices in the western Coachella Valley. With a diverse community of approximately 55,000 residents and affordable single-family homes, older block-construction properties from the 1960s through 1980s, and newer developments offering modern floor plans at competitive price points, homeowners here need a contractor who understands both the construction requirements and the design expectations of this community.
We have completed hundreds of residential projects across Cathedral City, La Quinta, Palm Desert, Indian Wells, and the greater Coachella Valley over the past 17 years. Every adu construction project in Cathedral City is managed by our licensed in-house team — not subcontracted out — with clear timelines, written estimates, and direct communication from start to finish. We are fully licensed (CSLB), insured, and rated 5.0 stars by our clients.
Our ADU Construction Process in Cathedral City
Every adu construction in Cathedral City follows the same proven process we have refined over 17 years of Coachella Valley construction. Here is exactly what to expect when you hire Niem Construction.
Feasibility Study & ADU Design
We evaluate your property, confirm ADU eligibility under California law and local zoning, and design a unit that maximizes livable space within your lot's allowable footprint.
Permit Application & Plan Review
We submit complete construction plans to the building department, navigate ADU-specific regulations, and secure all required permits. California law mandates 60-day permit processing for ADUs.
Site Work & Foundation
Grading, utility trenching, and foundation work begin. For detached ADUs, we install new sewer, water, electrical, and gas connections from the main property.
Framing Through Finish
Framing, roofing, exterior, rough plumbing, electrical, HVAC, insulation, drywall, flooring, cabinetry, and all interior finishes are completed by our team.
Final Inspections & Certificate of Occupancy
We coordinate all required inspections, address any city corrections, and obtain your Certificate of Occupancy so the ADU is legally permitted and ready for use or rental.
ADU Construction Cost in Cathedral City
Accurate pricing depends on your specific scope, materials, and site conditions. Below are typical adu construction cost ranges in Cathedral City based on our recent project history in the Coachella Valley.
| Scope of Work | Typical Cost Range |
|---|---|
| Junior ADU — conversion of existing space (up to 500 sq ft) | $40,000 – $80,000 |
| Detached ADU — standard build (400–800 sq ft) | $120,000 – $200,000 |
| Large detached ADU — premium build (800–1,200 sq ft) | $200,000 – $320,000+ |
These ranges reflect Cathedral City-area pricing. Your actual cost depends on square footage, material selections, structural changes, and permit requirements. We provide free, detailed estimates with no obligation — call (760) 534-8663 or request an estimate online.
ADU Construction Permits in Cathedral City
Most adu construction projects in Cathedral City require ADU-specific building permits per California state law (AB 68, SB 13), plus electrical, plumbing, and mechanical permits. Cathedral City issues residential permits through its Community Development Department with typical review timelines of 7 to 14 business days, making it one of the faster jurisdictions in the valley. Niem Construction handles the complete permitting process — applications, plan reviews, and all required inspections — so you never have to visit the building department or manage paperwork yourself.
Explore more: Learn more about our ADU Construction services, or browse related services including Room Additions, Garage Conversions, Custom Build-Outs. Ready to start? Contact us for a free estimate or call (760) 534-8663.