Mighty Buildings ADU Site Prep & Utilities Nationwide

Mighty Buildings ADU Site Prep & Utilities in Burbank: What to Know First

We provide independent Mighty Buildings ADU site prep and utilities in Burbank, typically completing foundation and utility tie-in work within 4-6 weeks of permit approval, with every project quoted at a written price before any work begins under Haven Standard Clause 1. The number goes on paper first. Everything else follows from that.

Call (747) 322-4648

This page is for Burbank homeowners who have purchased or are considering a Mighty Buildings unit - the M Series for studio and one-bedroom configurations, or the larger B Series two-bedroom - and need the site preparation, utility connections, and finish work that the factory-built shell does not include. We also specify and coordinate Abodu, Cover, and Dvele systems, but this page addresses what we have learned from Mighty Buildings jobs specifically.

Call (747) 322-4648 to schedule your free estimate. We will give you a written cost range before the site visit.

How Mighty Buildings Products Fail - and How We Fix Them

• M Series units: undersized electrical service entry for Burbank’s 100-amp minimum ADU requirement. The M Series ships with a 60-amp panel standard, which works in jurisdictions with lower thresholds but fails Burbank plan check every time. We upgrade to a 100-amp Siemens or Square D load center with proper grounding to Burbank’s 2023 NEC adoption, pulling the electrical permit as part of our single contract.
• B Series units: plumbing lateral misalignment with Burbank’s older clay sewer mains. The B Series rough-in lands at a standard 18-inch depth, but Magnolia Park and the hillside neighborhoods above Glenoaks often have original 6-inch clay lines at 24 inches or deeper, with significant root intrusion. We camera the line first, then specify either a deeper trench or a sewage ejector system - documented in the permit set before we break ground.
• Both series: foundation settling on Burbank’s expansive clay soils after the first rainy season. Mighty Buildings’ lightweight composite panels reduce dead load, which is an advantage for shipping, but that same lightness means less soil compression and more seasonal movement on the Verdugo Hills clay. We specify a 12-inch engineered fill base with 3/4-inch crushed aggregate and a 4-inch post-tensioned slab minimum, not the 4-inch floating slab that some contractors pour.
• M Series HVAC: mini-split line set routing conflicts with the unit’s integrated mechanical chase. The factory chase is sized for a standard 9k BTU head, but Burbank’s Title 24 compliance often requires a 12k BTU unit for south-facing installations. The larger line set does not bend to the factory radius without kinking. We relocate the chase entry point in the field, document the change in the as-built set, and pressure-test to 500 psi before insulation.
• B Series gas line: factory stub location incompatible with SoCalGas meter-setback requirements in Burbank’s R-1 zones. The B Series stub exits at 12 inches above grade, but Burbank requires 18 inches minimum and 24 inches preferred for seismic flex loop clearance. We extend with Schedule 40 black iron, not flexible CSST, because Burbank’s inspector will red-tag CSST without an additional bonding inspection. The permit set shows the revised routing before we call for inspection.

Our Mighty Buildings ADU Site Prep & Utilities Process

1. 1
   Site survey and utility locate. We mark underground lines, verify the Mighty Buildings unit serial number against the approved set, and photograph existing conditions. You receive the photo record within 24 hours.
2. 2
   Permit set revision for site-specific conditions. Nadia Ellery reviews the factory drawings against Burbank’s current ADU checklist, flagging any M Series or B Series detail that conflicts with local amendment. The revised set is submitted before excavation.
3. 3
   Foundation and rough utility installation. We pour to the engineered spec, stub out electrical, plumbing, and gas to the factory connection points with 6 inches of tolerance for final alignment. No change orders - the scope is locked at signing per Haven Standard Clause 5.
4. 4
   Unit delivery coordination and set. We meet the Mighty Buildings delivery crew, verify crane placement on the prepared slab, and witness the weatherproofing of all utility penetrations. Any factory damage is documented before acceptance.
5. 5
   Final utility connection and testing. We complete electrical panel tie-in, water heater and fixture set, gas appliance connection, and pressure or voltage testing to Burbank inspection standards. All tests are photographed and logged.
6. 6
   Burbank final inspection and 365-Day Done Right Promise activation. We walk the inspector, address any corrections under our contract, and deliver the final permit card, photo record, and written warranty documentation.

Before

After

What Mighty Buildings ADU Site Prep & Utilities Costs in Burbank

Mighty Buildings site prep and utility work in Burbank typically runs $45,000-$85,000 all-in, depending on the series and site conditions. This range includes the foundation, all utility rough and final, and the permit set revision - a single contract at a single written price.

What moves the price: soil conditions requiring engineered fill, depth to sewer main, distance to electrical transformer, and whether the existing main panel has capacity or needs upgrade. We identify these variables in the first site visit and give you the number in writing before you decide. Call (747) 322-4648 for your free estimate.

Why Burbank Homeowners Call Ellery ADU Studio Burbank for Mighty Buildings Work

We have pulled permits and framed units in Magnolia Park as often as anywhere else in Burbank, and we have learned what the factory drawings assume that the field does not deliver. Our crew is background-checked and uniformed; our license number appears on every page. The 365-Day Done Right Promise is in writing before the project starts - if the finished ADU is not built to the permitted drawings, we make it right. A live person answers calls 24/7, and we offer a Free Second Opinion on any written estimate already in hand. We specify Abodu, Cover, and Dvele systems as well, which means we are not guessing when a Mighty Buildings detail looks unfamiliar - we have the multi-brand context to know whether it is standard or an outlier.

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