Modern ADU at dusk
Simplified Construction

Modern Living
Simplified Construction

Preapproved plans & modular solutions for faster, more affordable residential construction

Preapproved Plans

Skip the lengthy design and approval process with our preapproved ADU plans

Faster Construction

Modular construction reduces build time by up to 50% compared to traditional methods

Cost Effective

Predictable pricing and efficient construction methods save you money

End-to-End Support

Expert guidance through every step of your ADU or Homekey project

Featured Designs

Preapproved ADU Plans

Browse our collection of preapproved ADU plans designed for quick permitting and efficient construction

The Studio
San Mateo County

The Studio

Compact and efficient studio ADU perfect for a home office or guest suite

400 sq ft
0 Beds
1 Bath
From $120,000
View The Studio
The One Bedroom
San Jose

The One Bedroom

Spacious 1 bedroom ADU with open concept living and full kitchen

650 sq ft
1 Bed
1 Bath
The Two Bedroom
San Mateo County

The Two Bedroom

Family-friendly 2 bedroom ADU with versatile living space

850 sq ft
2 Beds
1 Bath
Homekey modular housing project
California Homekey Program

Modular Solutions for Homekey Projects

Accelerate your Homekey project with our modular construction solutions designed specifically for affordable housing developments.

Rapid Deployment

Reduce construction timelines by up to 50% with factory-built modules

Cost Predictability

Fixed pricing models eliminate budget overruns common in traditional construction

Scalable Solutions

Easily scale from small developments to larger multi-unit projects

Program Compliance

Our designs meet all Homekey program requirements and accessibility standards

Efficient Building

Modular Construction Solutions

Factory-built precision with faster timelines and predictable costs

Built in a Controlled Environment

Our modular units are constructed in factory settings, ensuring consistent quality.

Assembled on Your Property

Modules are transported to your site and assembled in days, not months.

Customizable and Flexible

Choose from various finishes while maintaining the speed of modular construction.

Explore Modular Solutions
Modular construction process showing factory precision building
Interactive Tools

Plan Your Project

Use our interactive tools to explore options, estimate costs, and visualize your project

ADU Feasibility Tool

Check if your property is suitable for an ADU and understand zoning requirements

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Cost Calculator

Estimate your ADU or Homekey project costs based on size, features, and location

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Timeline Estimator

Get a detailed timeline for your project from planning to completion

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Financing Calculator

Compare financing options and calculate monthly payments for your project

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Virtual Design Customizer

Customize preapproved plans with finishes, fixtures, and layout options

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Success Stories

What Our Clients Say

Hear from homeowners and developers who have successfully completed their projects with AIAADU

Sarah Johnson

Sarah Johnson

Homeowner

"Working with AIAadu made building our ADU so much easier than we expected. The preapproved plans saved us months of back-and-forth with the city."

Michael Chen

Michael Chen

Property Developer

"The modular construction process was incredibly efficient. What would have taken 9 months was completed in just 4 months with exceptional quality."

Lisa Rodriguez

Lisa Rodriguez

Homekey Project Manager

"AIAadu's expertise in Homekey projects helped us navigate the complex requirements and deliver housing units on time and within budget."

200+
ADUs Completed
50+
Homekey Units
98%
Client Satisfaction
40%
Faster Than Traditional

Ready to Start Your Project?

Whether you're building an ADU or developing a Homekey project, we're here to simplify the process.