Detached ADUs from $180k. A father-and-sons licensed GC handles your design, city permits, and construction — with a free, honest feasibility walk-through before you spend a dollar.
Permits approved in ≤60 days by CA law · Fees waived under 750 sq ft in most IE cities
Tell us where you are — we'll walk your lot and give you a straight answer, even if it's "don't build."
Prefer to talk? Call or text (909) 208-8655
These are honest 2026 ranges for our area — not teaser rates. Your free walk-through gets you an exact number for your lot.
| Project type | Typical investment | Timeline | Best for |
|---|---|---|---|
| Garage Conversion ADU | $90,000 – $150,000 | 3–5 months | Fastest payback — the structure already exists |
| Attached ADU | $150,000 – $250,000 | 6–10 months | Shares a wall; cheaper utility runs |
| Detached ADU (new build) | $180,000 – $280,000 | 9–14 months | Max privacy & rental value, up to 1,200 sq ft |
We measure your garage or yard, check utilities and setbacks, and tell you honestly what your lot allows.
Plans drawn to your budget — sized under 750 sq ft when it saves you fees.
California law forces approval within 60 days. We handle every submittal and correction.
Our family builds it — garage conversions are typically move-in ready in 3–5 months total.
The most common ways IE homeowners fund an ADU: a HELOC on existing equity, a renovation/construction loan, or cash-out refinance. We'll walk you through what builders see working — and connect you with local lenders who do ADU projects every week.
Jesse Landeros has built and remodeled IE homes since the '90s. Now with his sons Josh and Justin, Landeros & Sons puts three names on your project — which is exactly why it gets done right. When you call, you talk to us. When we show up, it's us.
No. California law prohibits cities from requiring replacement parking when a garage is converted to an ADU.
Detached ADUs up to 1,200 sq ft are allowed on most single-family lots, with 4-foot side and rear setbacks. We often design at 749 sq ft or less to waive impact fees.
State law requires cities to approve complete ADU applications within 60 days — and new 2026 law (SB 543) forces a completeness check within 15 business days. Cities like Fontana also offer pre-approved plans that go even faster.
Yes — and you can rent out both your main home and the ADU. Owner-occupancy requirements were permanently removed by state law.
We check your garage structure or yard, ceiling heights, electrical panel, sewer path, setbacks, and city rules — then give you a realistic cost range and timeline on the spot. No charge, no pressure.
One visit. Real numbers. A straight answer.