Title 24 Reports for Los Angeles Permit Projects
Need a Title 24 report in Los Angeles? Title 24 Calcs prepares permit-ready energy compliance reports for all LA project types. We serve homeowners, contractors, architects, and developers. Most residential reports are ready within 1–2 business days.
Los Angeles is one of the most active permit markets in California. The Los Angeles Department of Building and Safety (LADBS) requires a Title 24 report for nearly all new construction, additions, and many alterations. We prepare reports that meet LADBS plan check requirements and the current 2025 California energy code.
Jump to your project type:
New ConstructionADU & JADURoom AdditionRemodel & AlterationCommercial
| 1–2Business day turnaround for most residential reports | $250Starting price for eligible residential projects | 2025All reports use the current California energy code |
Los Angeles Department of Building and Safety
201 North Figueroa Street, Los Angeles, CA 90012
Phone: (213) 473-3231 | www.ladbs.org
Los Angeles Title 24 Climate Zones Explained
Los Angeles spans three California Title 24 climate zones. Your zone affects insulation minimums, window U-factors, solar PV sizing, and HVAC requirements. In fact, using the wrong zone is one of the most common causes of LADBS plan check corrections.
| Climate Zone | LA Areas Covered | Key Characteristics |
|---|---|---|
| Zone 6 | Coastal LA, Santa Monica, Venice, Brentwood, Pacific Palisades, Malibu | Mild marine climate. Lower heating loads. Strict window U-factor requirements. |
| Zone 9 | San Fernando Valley, Sherman Oaks, Encino, Studio City, Burbank, North Hollywood | Hotter summers. Higher cooling loads. More demanding HVAC and insulation requirements. |
| Zone 10 | East LA, Pomona, Azusa, Covina, West Covina, El Monte | Inland heat exposure. Highest summer cooling loads in the LA metro area. |
Not sure which zone applies to your address? Simply include your project address when you submit and we will confirm your zone before we start your report.
Title 24 for New Home Construction in Los Angeles
New single-family homes in Los Angeles must comply with the 2025 Title 24 energy code. This applies to all permits submitted on or after January 1, 2026. Under the new code, heat pumps for space and water heating are now the prescriptive baseline. Solar PV and battery readiness also apply to most new LA homes.
We prepare the full CF1R compliance package for LADBS submittal. This includes energy calculations, mandatory measures, and all HERS verification forms. Our reports are accepted at LADBS plan check without corrections in the vast majority of cases.
What We Need to Get Started
- Floor plan with dimensions and north arrow
- Exterior elevations
- Window and door schedule
- Heating, cooling, and water heating equipment type
- Project address for climate zone confirmation
See our residential new construction service page for full details.
Los Angeles Title 24 ADU and JADU Reports
Los Angeles is one of the most active ADU markets in California. LADBS requires a Title 24 ADU report for all new ADUs and JADUs. Furthermore, the 2025 code now applies to all ADU permits submitted on or after January 1, 2026.
ADU compliance depends on how LADBS classifies your project. A new detached ADU follows new construction rules. An attached ADU or garage conversion may be classified as an alteration instead. This changes which requirements apply. We confirm the right compliance path before we start your report.
ADU Types We Cover in Los Angeles
- Detached ADUs — new standalone units on existing residential lots
- Attached ADUs — additions connected to the primary home
- Garage conversions — existing garages converted to living space
- JADUs — junior ADUs created within the existing floor area of the home
ADUs under 500 sq ft may qualify for a water heating exception under the 2025 code. An electric tankless heater may work instead of a heat pump water heater. We will confirm whether your ADU qualifies when you submit.
See our ADU Title 24 service page for more details.
Los Angeles Title 24 for Room Additions
A room addition in Los Angeles that adds conditioned floor area triggers Title 24 compliance. Under the 2025 code, the addition must meet updated insulation values for all new walls, ceilings, and windows. Moreover, any new HVAC or ducts must also meet the 2025 efficiency and leakage standards.
LADBS plan check reviewers look closely at addition reports. Correct insulation values, proper climate zone assignments, and accurate window specs all matter. We prepare addition reports that pass LADBS plan check without correction notices.
See our residential addition service page for more information.
Los Angeles Title 24 for Remodels and Alterations
Not every remodel needs a Title 24 report. However, many do. LADBS commonly requires a Title 24 alteration report for these scopes of work:
- HVAC replacement — replacing a furnace or AC unit in Los Angeles often requires load calculations, duct testing, and a Title 24 report.
- Window replacement — new windows in Climate Zones 6, 9, and 10 must meet 2025 U-factor minimums. This needs a fenestration compliance report.
- Lighting changes — significant lighting scope changes in existing LA homes trigger compliance documentation.
- Water heater replacement — switching to a heat pump water heater triggers ventilation and electrical readiness requirements.
Not sure if your Los Angeles remodel needs a report? Submit your project details and we will confirm the scope before you pay.
Commercial
Commercial Title 24 Reports in Los Angeles
We prepare commercial Title 24 reports for all nonresidential project types in Los Angeles. LADBS requires NRCC forms for new commercial construction, tenant improvements, and large HVAC or lighting upgrades.
Nonresidential Envelope — Los Angeles
We prepare nonresidential envelope reports for insulation, roofing, wall assemblies, glazing, and exterior envelope compliance. These are required for new commercial buildings and envelope-affecting tenant improvements submitted to LADBS.
Nonresidential Mechanical — Los Angeles
We prepare nonresidential mechanical reports for HVAC systems, ventilation, heating, and cooling equipment. Under the 2025 code, ASHRAE Guideline 36 controls are now mandatory for VAV systems in Los Angeles commercial buildings.
Nonresidential Lighting — Los Angeles
We prepare nonresidential lighting reports for interior lighting, exterior lighting, controls, and lighting power density. Note that the Tailored Method no longer exists in the 2025 code.
Commercial Project Types We Serve in LA
- Office buildings and tenant improvements
- Retail and restaurant spaces
- Warehouses and industrial buildings
- Mixed-use developments
- Schools and healthcare facilities
- Multifamily buildings over three stories
Why Los Angeles Contractors Choose Title 24 Calcs
LADBS plan check is one of the most thorough review processes in California. A poorly prepared Title 24 report leads to correction notices, permit delays, and extra costs. We prepare reports that are accurate, complete, and ready for LADBS plan check the first time.
| Fast Turnaround Most LA residential reports are ready in 1–2 business days. Rush options are available for urgent LADBS submittals. | 2025 Code Compliant All reports use CEC-approved software updated to the 2025 Title 24 standards effective January 1, 2026. |
| All Project Types We cover new homes, ADUs, room additions, remodels, alterations, and all nonresidential building types in Los Angeles. | Clear Communication We respond quickly and support you through the LADBS plan check process from order to approval. |
Los Angeles Neighborhoods We Serve for Title 24
We prepare Title 24 reports for projects throughout the City of Los Angeles and all LADBS jurisdiction areas. This includes the San Fernando Valley, Westside, Central LA, East LA, and the Harbor area.
We regularly serve projects in Downtown Los Angeles, Hollywood, Silver Lake, Echo Park, Los Feliz, Koreatown, Mid-City, West Los Angeles, Brentwood, Pacific Palisades, Venice, Culver City, Studio City, Sherman Oaks, Encino, Tarzana, Woodland Hills, Northridge, Chatsworth, Sylmar, San Pedro, Watts, and Boyle Heights.
We also serve projects in nearby cities including Santa Monica, Glendale, and other surrounding communities. See our full Cities We Serve page for the complete list.
Frequently Asked Questions — Title 24 Los Angeles
Does LADBS require a Title 24 report for every permit?
Not for every permit. However, LADBS requires a Title 24 report for most new construction, room additions, ADUs, and many alterations. If your project adds conditioned space or replaces mechanical systems, a report is likely required. Submit your project and we will confirm before you pay.
Which Title 24 climate zone is Los Angeles in?
Los Angeles spans Climate Zones 6, 9, and 10. Coastal areas like Santa Monica and Venice fall in Zone 6. The San Fernando Valley falls in Zone 9. East LA and areas near Pomona fall in Zone 10. Your specific zone depends on your project address.
Does the 2025 Title 24 code apply to my Los Angeles project?
Yes, if you submitted your permit on or after January 1, 2026. The 2025 code is now in effect for all LADBS permit applications. It covers heat pump requirements, updated insulation values, solar PV rules, and expanded HERS verification.
How long does it take to get a Title 24 report in Los Angeles?
Most residential reports are ready within 1–2 business days after we receive your plans. Commercial reports typically take 2–3 business days depending on scope. Rush options are also available for urgent LADBS submittals.
Can I get a Title 24 ADU report for a Los Angeles project?
Yes. We prepare ADU Title 24 reports for all ADU and JADU types in Los Angeles. This includes detached ADUs, attached ADUs, garage conversions, and junior ADUs. Turnaround is typically 1–2 business days.
How much does a Title 24 report cost in Los Angeles?
Pricing starts at $250 for eligible residential projects. ADU reports, room addition reports, and commercial projects are quoted based on scope. See our pricing page for current rates.