ADU Specials in San Jose, CA
If you’re weighing the cost of a detached ADU, a room addition, or a garage conversion in San Jose, call (669) 444-4530 and ask what Sutton ADU San Jose is running this season. We keep offers simple and honest because that matches how we build: a written price before work starts, no surprise invoices, and a 365-Day Done Right Promise stamped on every project. Here’s what’s current, who it’s for, and how to claim it before it expires March 31, 2027.
Current Offers

Free Feasibility Walkthrough and Lot Assessment ($450 Value)
We’ll walk your San Jose lot, check setbacks (the required gap between your new structure and the property line), review access for equipment and materials, and tell you plainly whether an ADU makes sense on your specific parcel. You’ll leave with a written summary of what we found, what it likely means for your budget, and whether you’d be better served by a prefab line like Abodu or Cover, a custom build, or a Tuff Shed conversion. No pressure, no obligation, and you keep the written notes either way. Valid through March 31, 2027. Mention this offer when you call (669) 444-4530.
Complimentary Second Design Consultation for First-Time ADU Clients
Your first consultation with Sutton ADU San Jose covers your goals, your lot constraints, and which product line fits your budget, from Dvele and Mighty Buildings to Boxabl and Plant Prefab. If you need a second session to refine the plan after we deliver the initial written price, we’ll comp the follow-up visit. Every technician or consultant who comes to your door is background-checked and identity-verified under Threshold Verified standards; their name and photo are sent to you before arrival, and they show a photo ID badge at the door. Valid through March 31, 2027. Mention this offer when you call (669) 444-4530.
Senior and Military Courtesy: 5% Credit Toward Site Work
San Jose homeowners aged 65 and over, active-duty military, and veterans qualify for a courtesy credit applied to site preparation, foundation work, or utility trenching on any ADU or room addition project. This is a line-item credit on your written price, not a vague discount buried in the total, so you can see exactly where the money comes off. Combine it with any other current offer without asking twice. Valid through March 31, 2027. Mention this offer when you call (669) 444-4530.
Free Written Price with No Change Orders on Standard Detached ADUs
Every Sutton ADU San Jose project already includes a written price before any work begins, always, with no exceptions. This offer extends that same fixed pricing to the full build for standard detached ADUs, meaning the number we put in writing is the number you pay, provided the scope doesn’t change at your request. If a repair or element of the build fails within a year, the 365-Day Done Right Promise covers the second visit at no fee. Valid through March 31, 2027. Mention this offer when you call (669) 444-4530.
James Hardie Exterior Upgrade Consultation at No Charge
If your room addition or ADU plans call for a durable exterior that stands up to San Jose’s dry summers and wet winters, we’ll consult on James Hardie cladding systems at no cost. Our team has authorized experience with these siding systems and will walk you through board profiles, color options, and fire-resistance ratings that matter in Santa Clara County. You’ll get honest guidance on whether the upgrade justifies the cost for your specific build. Valid through March 31, 2027. Mention this offer when you call (669) 444-4530.
How to Redeem
Call (669) 444-4530 and tell our live-answer team which offer you’re claiming, and we’ll note it on your account before the visit. We’ll book the walkthrough or consultation at a time that works for you and send the name and photo of your technician before they arrive. When they show up in a clean, marked uniform with a photo ID at the door, mention the offer again so we can apply it to your written price that day.
Written by Miles Hartwell, Owner at Sutton ADU San Jose, serving San Jose homeowners with ADU builds, home additions, and room additions since 2006.


