Financing is where many projects stall. Not because homeowners are careless, but because construction financing works differently than purchasing a home. Funds are released in stages, documentation matters, and financing structure affects scheduling.
This article explains common financing paths in a practical way.
The Two Main Financing Buckets
Most homeowners fall into one of two categories:
- Using existing equity through a HELOC or cash-out refinance
- Using a construction-style loan with draw schedules
HELOCs
HELOCs can work well when you have sufficient equity and want flexibility.
Common surprises include variable rates, line limits that do not match project scope, and exposure if hidden conditions arise.
HELOCs offer flexibility but shift more planning responsibility to the homeowner.
Construction Loans
Construction loans involve defined budgets, draw schedules, and lender inspections.
They work well when structure and oversight are preferred but come with heavier paperwork and timing considerations.
San Diego-Specific ADU Financing
For eligible homeowners, the San Diego Housing Commission offers an ADU finance program with construction-to-permanent loans, technical assistance, and program requirements tied to income and rent restrictions.
It is not free money and not for everyone, but it can be strong when it fits.
How Financing Affects Construction
Financing affects:
- When selections must be finalized
- Inspection scheduling
- Material ordering
- Payment timing to trades
Draw timing should always be reflected in the construction schedule.
What Lenders Typically Require
Most lenders look for:
- Clear plans
- A defined scope
- Contractor information
- A realistic budget
The clearer the documentation, the smoother the process.
FAQ
Should financing be figured out before design?
Early clarity helps avoid redesign later.
Are HELOCs always cheaper?
Not always. Terms and rates vary.
Do construction loans slow projects down?
They can if draw timing is not planned.