How much does Title 24 compliance cost?
Answered by Netanel Presman, General Contractor (CSLB #1105249) · Updated
Short answer
Title 24 compliance documentation (CF-1R forms from a California Certified Energy Analyst) costs $500-$2,500 per project depending on scope. The physical equipment required to pass Title 24 2025 — heat pump HVAC, heat pump water heater, solar PV, high-performance windows — typically adds $5,000-$25,000 over a minimum code-compliant gas baseline.
In detail
Title 24, Part 6 compliance has two cost buckets that homeowners often conflate:
- Documentation cost — a California Certified Energy Analyst (CEA) prepares and signs the CF-1R form (residential compliance documentation). LADBS and every other California AHJ requires this before issuing the permit. Typical 2026 rates:
- Small addition / single-room remodel: $500-$900
- - ADU or whole-house remodel: $900-$1,800
- - Custom new home or complex addition: $1,500-$3,500
- Equipment cost premium — the 2025 Title 24 update (effective January 1, 2026) preferences electrification. The cost difference versus a minimum-code-2022 gas baseline:
- Heat pump HVAC vs gas furnace + AC: $3,000-$8,000 more
- - Heat pump water heater vs gas tankless: $1,500-$4,000 more
- - Solar PV sized to projected load (new construction, ADU): $8,000-$18,000
- - High-performance windows (U-factor to code): $500-$2,000 per window
- - Battery storage (multifamily only for now): $6,000-$15,000
The good news is federal tax credits under the Inflation Reduction Act cover 30% of heat pump equipment cost (up to a cap), and PG&E / SCE / SDG&E offer additional rebates of $2,000-$5,000 for heat pump installations. Net cost can be roughly cost-neutral or even cheaper than the gas alternative once incentives apply.
When compliance is the most expensive:
- Older home where the existing gas furnace footprint can't accommodate a heat pump air handler (requires ducted replacement).
- Tight lot where solar PV sizing requires structural roof reinforcement.
- Historic districts where high-performance windows must match original design.
AskBaily's California scoping includes a Title 24 line item in every quote, pulls applicable IRA tax credits and utility rebates, and flags whether the project is an addition (triggers Title 24) versus a like-for-like repair (may not).
Sources
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