What Chino Homeowners Say About Ellery ADU Studio Chino
We’ve been designing, permitting, and building ADUs in Chino since 2015, and we’ve learned that the best marketing is a homeowner who can walk you through their slab pour, their permit timeline, and exactly what they paid. Nadia Ellery runs every project with the Haven Standard: written price upfront, photo documentation every visit, and a 365-Day Done Right Promise in writing. The reviews below come from real Chino-area projects - garage conversions in College Park, detached units near Ayala High School, JADUs in the older neighborhoods east of Central Avenue. We’re proud of the work, and we’re proud these homeowners agreed to share what happened.
Recent Reviews
“We’d already been quoted $18,000 for drawings by another firm that wouldn’t even confirm if the city would approve a 560-square-foot garage conversion on our College Park lot. Nadia came out, measured the setbacks herself, and had her architect flag the utility trenching issue before we signed anything. Final price was $127,000 all-in, drawings through final inspection, and the only change was us adding a mini-split upgrade - which she priced in writing on the spot. The photo record from every inspection visit meant I could show my husband what the electrician actually did without him taking off work.”
- Paige H., College Park, Chino
“Our detached ADU near Ayala High hit a snag when Chino Building found the original 1957 sewer lateral didn’t match the as-builts. Nadia didn’t eat the cost or come back with a surprise - she pulled the microfilm at City Hall herself, documented the discrepancy in the photo record, and we handled the sewer replacement as a separate line item with its own written price. The 365-Day Done Right Promise wasn’t just paper. When the stucco cracked at month eight, she had her crew out with the exact batch number from the original mix. No argument, no deductible.”
- Angela L., near Ayala High School, Chino
“I got three quotes for converting our attached garage into a JADU for my mother. Two were ‘call us when you’re ready to start’ with no paper. Nadia’s was the only one with a permit set, a site plan showing the parking replacement per Chino’s ADU ordinance, and a fixed price of $89,500. She even noted that our east-facing windows would need solar heat gain coefficient adjustment for the inland heat - nobody else mentioned it. The live person answering at 9 PM when I had a question about the insulation inspection didn’t hurt either.”
- Tracy A., east of Central Avenue, Chino
“We were leaning toward a prefab unit and had spoken to Abodu directly. Nadia explained that Ellery could coordinate the Abodu system within the same design-build contract, so if the crane pad failed or the utility tie-in ran over, it was her problem, not ours versus theirs. She was right - the pad needed rebar we hadn’t anticipated. She absorbed it under Clause 5, No Surprises. The documented photo record showed the before, the rebar pour, and the crane set in sequence. My insurance agent actually asked for the photos to update our policy.”
- Carmen S., Chino
“After a bad experience with a general contractor on our main house remodel, I was skeptical of any ‘one contract’ promise. Nadia put her license number on the proposal, ran background checks on every crew member she named, and showed me the uniform policy. Our garage conversion ADU in the older grid near Chino Avenue came in at $134,000, permit-ready in eleven weeks, built in four months. The written price before work started meant I could compare apples to apples - and when I did, hers was the only quote that didn’t grow by 20% after demo.”
- Paige H., Chino
“I brought Nadia a written estimate from another ADU specialist for a free second opinion. She found that the competitor hadn’t accounted for Chino’s fire separation requirement between the main house and the new detached unit - a $7,400 line item that would have surfaced mid-permit. She redid the whole scope, came in $3,000 higher upfront but $4,400 cheaper real cost, and we signed that week. The 365-Day Done Right Promise got tested when the tankless water heater threw an error code at month six. Her plumber was there the next morning, part in hand, no service charge.”
- Angela L., Chino
Why Customers Trust Us
Every review above points to the same structure: the Haven Standard, which Nadia Ellery has applied to 900-plus ADUs since 2015. Written price before any work starts - Clause 1 - means you’re not funding someone’s learning curve. The documented photo record on every visit means you see what was found and what was done, not a summary of how it felt. The 365-Day Done Right Promise means if the finished ADU doesn’t match the permitted drawings, we make it right, in writing, before your project starts.
We’re not a referral network or a designer who disappears after plans. We’re a design-build studio: one contract covering ADU Design & Permitting, Garage Conversion ADU, New Detached ADU, Junior ADU & Interior Conversion, and ADU Site Prep & Utilities. If the architect’s dimension conflicts with the framer’s layout, we resolve it. If the prefab module from Abodu, Cover, or Dvele doesn’t align with the site prep, we coordinate it. No finger-pointing.
Our crews are background-checked, uniformed, and their license numbers appear on every page of your proposal. A live person answers calls 24 hours a day - no voicemail queue, no callback that doesn’t materialize. And if you already have a written estimate in hand, we’ll give you a free second opinion. We’ve caught missing fire separation line items, underestimated sewer laterals, and permit timelines that ignored Chino’s actual plan-check queue.
Call (909) 323-1107 to schedule your free estimate. We’ll name a number you can plan around, put it in writing, and start documenting from day one.
Written by Nadia Ellery, Owner at Ellery ADU Studio Chino, serving Chino since 2015.