Tech Prefab Provides
a Turn-Key ADU Solution
We Build & Deliver a Custom-designed ADU to your Home – Just provide the land & we do the rest. Feasibility, design and construction services - Everything you need to build your ADU project.
Earn Income / Expand Your Home with a Customized ADU
What is ADU?
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An accessory dwelling unit (ADU) is a legal term for a secondary house that shares the building lot of a larger, primary house.
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An additional residential building that occupies the same lot as a primary residence.
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The establishment and use of an ADU will fall under different zoning rules and regulations depending on where you live.
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An ADU has its own kitchen, living area, and a separate entrance.
Why build an ADU?
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Add space & comfort for your family & friends
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Appreciate your property's value by 20%-30%
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Generate $1,500-2,000 rental income per month
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Create new housing in your town & city
Successful Project
New 1-story Detached ADU
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A 416 sqft new ground-up one-story detached ADU
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One bedroom, a common living and kitchen area, and a bathroom
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End-to-end Program
Feasibility & Zoning
$0
Free Feasibility & Zoning Research Services. Request Now
Custom Design
7%
Prefab building competences lower the design cost from 10-12% to 7%, but still fully customizable
Fabricate & Assembly
$190/sqft
Rough-in Labor cost in the Bay area, foundation included!
CONSTRUCTION COST
$140,000
* including design and engineering fee
$1,800
RENTAL ESTIMATE
* estimated by location
MORTGAGE ESTIMATE
$460
* 30 Year / 5% interest rate/ 20% down payment
CASH-ON-CSAH RETURN
30%
Easier to Build
Number of ADUs allowed:
AB68 & AB881 Update: Properties that convert existing space to create ADUs may be eligible for one ADU -AND- one JADU.
Lot size:
AB68 & AB881 Update: Properties will not be subject to minimum lot standards by ordinance or of the applicable zoning district.
ADU size:
AB68 & AB881 Update: Properties will be allowed up to 850 square feet for a one-bedroom or up to 1,000 square feet for a two-bedroom ADU.
Setback:
AB68 & AB881 Update: The maximum required setback for a detached new construction ADU shall be no more than 4 feet from the rear or side property lines.
Ownership:
SB13 Update: Owner-occupancy requirements for ADUs will be voided statewide for 5 years.
Happy Client Journey
"After quoting from almost all prefab and modular builders in the Bay Area, I chose TechPrefab. I believe their approach is a perfect hybrid of prefab and stick-build. I was so impressed when I really saw how they put those wall panels together. It saves a lot of time and money. "
——Neel M
Our Floorplans
TechPrefab's unique panelized approach makes your future ADU fully customizable. See our proven successful floorplans with our clients.
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BASELINE COST
$100k
Size 310sqft
Bedroom 1
Bathroom 1
Width 19'8"
Depth 15'9"
