Introduction
In 2026, successful multifamily development is driven by strategy alignment, not construction volume.
Why Ground-Up ADUs Favor Hold Strategies
Ground-up ADUs struggle as flip vehicles due to:
- High construction costs
- Long timelines
- Appraisal friction
- Income seasoning requirements
Selling newly built ADUs typically makes sense only after a 2+ year hold.
The “Free Dirt” Advantage
When you buy an existing property, you already own the land. Adding units allows you to monetize that land without repurchasing it — effectively creating free dirt.
This strategy:
- Improves cash flow
- Supports refinance valuations
- Compounds over time
When AB 1033 Matters Here
AB 1033 adds long-term optionality, allowing ADUs to potentially be sold separately as condominiums — subject to local approval.
Official bill text:
https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202320240AB1033
This is not a short-term strategy, but it meaningfully enhances parcel value.
If You’re Flipping, Convert Instead
Conversions consistently outperform ground-up construction:
- Lower cost
- Faster execution
- Cleaner appraisals
- Easier exits
Examples include garage conversions, layout reconfigurations, and underutilized space.
Final Takeaway
Build ADUs for cash flow and refinance. Flip through conversions and renovations.
The information in this blog is for general informational purposes only and should not be your sole basis for financial or investment decisions. While ACI Apartments uses reliable sources for data and analysis, you should verify all information independently. This blog is not a comprehensive report on all changes to local, state, or federal laws affecting property owners and managers. Laws may have changed or been misinterpreted since publication. Always consult legal counsel or a licensed CPA before making decisions. ACI Apartments is not liable for actions taken based on this content. Information was gathered from CoStar and SDMLS.