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(951) 476-3715Corona, CA 92881
Contact Ellery ADU Studio Corona - Free ADU Estimate in Corona
Call us at (951) 476-3715 and you’ll reach a live coordinator who connects you with our local Corona team. There’s no hard sell, no deposit to book an assessment, and no obligation beyond the conversation. We’ll find a time that works, often within the same week, and you’ll have a written estimate with a real price range before we ever break ground.
What Happens When You Call
Step 1: We answer and listen. A live coordinator picks up, notes your Corona address, your timeline, and what you’re trying to solve. Whether you need a detached unit for rental income or an attached conversion for family, we start with the actual problem, not a script.
Step 2: We schedule an on-site assessment. A local estimator visits your property in Corona, El Cerrito, Home Gardens, or wherever you are in our service area. They’ll measure, photograph, and flag the site conditions that affect permitting and construction. You’ll get a real arrival window, not “sometime Tuesday.”
Step 3: You receive a written line-item estimate. Within 48 hours of the visit, we deliver a flat-price proposal with every cost broken out: design, permit set, site work, structure, utility tie-ins, and finish. This is Clause 1 of our Haven Standard - the price is fixed before anyone starts.
Step 4: We permit, build, and document. Once you approve, we handle the Corona permit submission, schedule inspections, and execute the work. Every phase gets photographed and logged. You receive a closing packet with readings, photos, and warranty documentation. No surprises, no gaps.
Why Corona Homeowners Call Us First
- We know Corona’s permitting rhythm. We’ve worked with the Corona Building Division long enough to understand their current review timeline and common plan-check corrections. That local knowledge keeps your project from stalling in the queue.
- Every pro on your job is required to carry the license and insurance California demands. We verify coverage before anyone steps on your property. License numbers appear on your written estimate for your records.
- Our price is the price. Clause 1 of the Haven Standard means flat pricing with written scope. No change orders triggered by “unforeseen conditions” we should have caught in assessment. No door upsell. No “while we’re in here” additions.
- We guarantee the workmanship. Every ADU we build in Corona carries a written warranty documented in your closing packet. If something fails because of how we built it, we fix it. That’s Clause 5 of the Haven Standard - no surprises includes the unpleasant ones.
Before
AfterOur Service Area Around Corona
We draw most of our ADU projects from Corona itself, but we regularly assess and build across the surrounding communities. Typical response times: Corona and El Cerrito within 1-2 days; Home Gardens, Norco, and El Sobrante within 2-3 days; Eastvale, Mira Loma, and Temescal Valley within 2-3 days; Chino, Pedley, Chino Hills, and Riverside within 3-4 days. If you’re nearby but don’t see your neighborhood listed, call anyway. Corona’s ADU market extends in every direction, and we’ve likely already worked in your area.
Frequently Asked Questions - Booking & Estimates
Yes. The on-site assessment and written estimate cost nothing and carry no obligation. We believe you shouldn’t pay to find out whether a project makes sense for your budget. Call (951) 476-3715 to schedule yours.
We typically schedule assessments in Corona within 3-7 days of your call, depending on current project volume. The coordinator will offer specific windows when you call. Call (951) 476-3715 to check this week’s availability.
No. Our assessment fee structure doesn’t change based on when we visit. Evening and Saturday appointments are available because many Corona homeowners work during standard hours. Call (951) 476-3715 to request a time that fits your schedule.
Your property address, a rough idea of your budget range, and your goal for the ADU - rental income, family housing, home office, or future sale value. If you have a survey, existing plans, or correspondence with the city, keep them handy for the estimator’s visit. Call (951) 476-3715 when you’re ready to start the conversation.
We accept checks, wire transfers, and major credit cards. Payment is structured around construction milestones tied to permit approvals and inspections passed, not arbitrary calendar dates. Your written estimate spells out the exact schedule. Call (951) 476-3715 for details specific to your project scope.
Call or Request a Callback
(951) 476-3715
Our phone is answered 24 hours a day, every day. If you prefer, ask the coordinator to schedule a callback at a specific time. No pressure, no deposit to talk, no obligation beyond the estimate. Nadia Ellery and our Corona team are ready when you are.
Written by Nadia Ellery, Owner at Ellery ADU Studio Corona, serving Corona and surrounding communities as part of the Ellery ADU Studio network established in 2015.