

Coachella Valley
ADU & New Construction Home Builder
Licensed & Insured General Contractor Specializing in ADUs, New Home Construction, Rebuilds, and Additions Throughout the Coachella Valley.
Services
Every project starts with a vision and often a big investment. We work with homeowners and investors across the Coachella Valley to plan, design, and build ADUs, garage conversions, ground-up homes, and property additions. Whether you’re converting your garage into an income-producing asset or developing a detached ADU, we guide you through every step of the process. Beyond construction, we take pride in educating our clients so you understand the numbers, the timeline, and the long-term value behind your build.



Project Costs
No two projects are the same, and pricing can vary depending on site conditions, zoning, design, and city requirements. During your consultation, we provide ballpark estimates to help you understand the investment range. You can also select from pre-designed layouts to save on costs, or fully customize your build based on your vision.
Detached ADU

600 Sqft+
1or 2 Bed/Bathroom
All - Inclusive
From $180,000
Plans and Permitting Only
From $10,500
Conversion + Small Addition

400-500 Sqft
Studio or 1Bed I 1 Bathroom
All - Inclusive
From $120,000
Plans and Permitting Only
From $8,500
New Ground Up Construction

1,400 Sqft
3 Bed 2 Bathroom
All - Inclusive
From $340,000
Plans and Permitting Only
From $19,500
Straight Garage Conversion

320-440 Sqft
Studio I 1 Bathroom
All - Inclusive
From $105,000
Plans and Permitting Only
From $7,500
*Starting prices based on flat lot, adequate access, and standard inclusions. Excludes permit, plan check, and impact fees; third-party reports (survey, soils, etc.); landscaping/hardscape plans. Final pricing subject to site conditions and jurisdictional requirements.
Our Process
We’ve streamlined the construction process to make your project clear, organized, and stress-free from start to finish.
Step 1 Schedule a Consultation
(15 Minutes)
We start with a quick 15-minute phone consultation, booked here. This one-on-one conversation is directly with me where we’ll discuss your vision, property details, feasibility, and overall goals. It’s a simple first step to understand what you’re looking to build and how we can help bring it to life
Step 2 Design & Feasibility
(1-2 Month)
After our initial consultation, we move into the planning phase. We coordinate with local architects and designers to begin developing plans that align with your vision, property layout, and budget. During this stage, we evaluate feasibility including zoning, setbacks, utilities, and structural requirements to ensure your project is both realistic and build-ready before moving forward.
Step 3 Plans, Permits, and Approvals
(2-3 Months)
Once your plans are finalized, we move into the permitting phase. Our team coordinates engineering, plan check submittals, and city approvals to ensure everything meets local building requirements. We stay involved throughout the process, helping navigate revisions and keeping your project moving forward toward construction.
Step 4 Construction & Project Delivery
(4-6 Months)
Once permits are secured, we break ground and begin construction. Our team manages the entire build from start to finish — keeping timelines on track and quality at the forefront. When complete, your project is fully finished and ready to enjoy or put to use.
Our Commitment
ERCER Inc. stands at the forefront of general contracting, specializing in ADUs, home additions, and new constructions. Our unique dual role as contractors and investors allows us to maximize the value of your property while ensuring your vision is realized.

