Title 24 Compliance Errors Checklist — The Items That Most Often Cause Corrections, Rejections, and Delays

If you’re looking for a Title 24 compliance errors checklist, you’re probably trying to prevent a permit delay—or you’ve already been hit with plan-check comments that feel like they came out of nowhere. In California, Title 24 energy compliance is part of the building code, which means documentation must be verifiable, internally consistent, and aligned with the plan set. Most “errors” are not mysterious software problems. They’re coordination problems: values on the energy forms don’t match the drawings, the project scope is classified incorrectly, or required information is missing from the permit package.

A good Title 24 compliance errors checklist does two things. First, it helps you catch preventable mismatches before you submit. Second, it gives you a fast way to diagnose what the plan checker is likely reacting to when they issue corrections. Think of this as a pre-flight inspection for your permit set: it’s easier to fix alignment issues before submittal than after a city moves your file into an “incomplete” status.

This page is intentionally more informative than salesy. It explains what to check, why it matters, and how the building department typically verifies compliance. If you’re under a tight deadline and want a professional review of your package, call (626) 365-1518.

How to Use This Title 24 Compliance Errors Checklist

Use the checklist in this order:

• Step 1: Confirm your plan set version is final enough to model (or at least internally consistent).
• Step 2: Check the “big ticket” regulated items (windows, insulation, HVAC, ventilation, and lighting for commercial).
• Step 3: Confirm the correct compliance pathway and project scope classification.
• Step 4: Verify the submittal package contains all required certificates and outputs.

When these four areas are solid, most plan-check corrections disappear.

Title 24 Compliance Errors Checklist: Document Control

These errors cause problems because the reviewer cannot confirm which version is “true.”

• Mixed plan revisions: Architectural sheets are a different revision date than mechanical/electrical sheets.
• Outdated schedules: Window/HVAC/lighting schedules were updated but the energy report uses the prior schedule values.
• Multiple PDFs submitted: The city portal contains both old and new plan sets, confusing the reviewer.
• Unclear scope notes: Plans do not clearly state whether the work is an addition, remodel, conversion, TI, or new construction.

Fix strategy: Submit one clean plan set revision. Remove older files. Make scope obvious on cover sheets or general notes where possible.

Title 24 Compliance Errors Checklist: Windows and Glazing

Window mismatches are one of the fastest ways to trigger corrections because reviewers can compare schedules to forms quickly.

• U-factor/SHGC mismatch: Energy forms list values that do not match the window schedule.
• Placeholder values: Window schedule says “TBD,” “per manufacturer,” or uses generic values that don’t align with the model.
• Glazing area changes: Elevations and floor plans show different window sizes than the modeled inputs.
• Orientation confusion: North arrow or orientation is inconsistent, affecting solar heat gain assumptions.
• Doors not accounted for: Exterior doors and glazed doors are not shown consistently between plans and forms.

Fix strategy: Create a clean window schedule with performance values and confirm the compliance forms match exactly.

Title 24 Compliance Errors Checklist: Insulation and Envelope Assemblies

Insulation errors often come from conflicting notes across details and sheets.

• Conflicting R-values: Wall/roof/floor insulation notes differ between sections, details, and schedules.
• Missing assemblies: Vaulted ceilings, raised floors, or garage separation walls aren’t specified.
• Unclear roof type: Attic vs. vaulted vs. roof deck insulation is not clearly indicated.
• Thermal boundary confusion: Plans do not clearly show what is conditioned vs. unconditioned space.

Fix strategy: Standardize envelope notes, confirm the thermal boundary, and ensure the energy model reflects the final callouts.

Title 24 Compliance Errors Checklist: HVAC and Mechanical Systems

HVAC is one of the most common sources of “report doesn’t match plans” comments.

• System type mismatch: Plans show one type (e.g., heat pump) while the report lists another (e.g., gas furnace).
• Efficiency mismatch: SEER2/EER/HSPF2/AFUE values on schedules don’t match the compliance forms.
• Equipment not specified: Mechanical schedule lacks clear efficiency ratings or model identification.
• Duct location unclear: Attic vs. conditioned space assumptions not shown consistently.
• Controls missing: Required control notes or thermostat/control descriptions are absent or unclear.

Fix strategy: Align mechanical schedules and notes with the compliance forms, and avoid “generic” placeholder efficiencies unless allowed and documented.

Title 24 Compliance Errors Checklist: Ventilation and Indoor Air Quality

Ventilation comments can be frustrating because they often appear as short phrases like “ventilation method unclear.”

• Ventilation strategy not shown: Plans don’t indicate how whole-building ventilation is achieved.
• Conflicting ventilation notes: Mechanical notes contradict energy documentation assumptions.
• Exhaust fan values missing: Key fan specifications or locations are not clearly described where needed.

Fix strategy: Make ventilation intent obvious on mechanical notes and ensure the modeled approach matches.

Title 24 Compliance Errors Checklist: Lighting and Controls (Commercial/TI)

Commercial projects are often rejected due to incomplete lighting documentation.

• Missing LPD calculations: Lighting power density calculations are not provided or don’t match the fixture schedule.
• Controls not documented: Occupancy sensors, automatic shutoff, dimming/daylighting controls not shown or specified.
• Space types not labeled: Without clear space type labeling, allowances can’t be verified.
• Daylighting zones missing: Required daylighting zones and controls are not identified.

Fix strategy: Provide fixture schedules, control sequences, space type labels, and align with the compliance package.

Title 24 Compliance Errors Checklist: Scope and Compliance Pathway

Scope errors are common when projects sit in the “gray area,” such as significant remodels, conversions, or mixed-use work.

• Addition modeled as new construction (or vice versa): The pathway does not match the permit scope.
• Mixed-use not separated correctly: Residential and nonresidential spaces documented improperly.
• Tenant improvement scope unclear: Regulated vs. unregulated work not clearly defined.
• Common areas misclassified: Corridors, lobbies, shared spaces not treated correctly.

Fix strategy: Confirm the jurisdiction’s interpretation of scope when needed and ensure the model and forms reflect that scope clearly.

Title 24 Compliance Errors Checklist: Submittal Package Completeness

Even a correct model can be rejected if the submission is incomplete.

• Missing compliance certificates: Required certificates and outputs are not included with the permit package.
• Unclear file labeling: City staff can’t identify which files are “current.”
• Signatures/author info missing: Required identifying information is absent where applicable.
• Supporting outputs missing: The jurisdiction expects supporting outputs or attachments that weren’t provided.

Fix strategy: Build a “reviewer-friendly” upload set with clear naming and a complete compliance package.

What to Do If You Already Have Corrections

If you’re using this Title 24 compliance errors checklist after the city issued comments, treat the checklist like a diagnostic tool:

• Match each city comment to one checklist category (windows, insulation, HVAC, lighting, scope, completeness)
• Correct the underlying mismatch (not only the symptom)
• Regenerate the compliance forms after updates
• Resubmit as one coordinated package

This approach reduces the chance of a second correction cycle.

How to Get a Professional Review Before You Resubmit

If you want a fast, expert second set of eyes on your package, we can review your documents using this Title 24 compliance errors checklist approach and help you produce a clean resubmittal set.

Call (626) 365-1518, upload your plans and city comments through our contact page, or email info@title24energy.com with “Checklist Review” in the subject line.

We’re Ready To Take Your Call

Most Title 24 permit delays come from preventable documentation mismatches. If you run this Title 24 compliance errors checklist before submittal—or use it to diagnose city comments—you can usually cut down resubmission cycles and keep your project moving.

Call (626) 365-1518 today for help reviewing your package and correcting compliance errors the right way.

 

Frequently Asked Questions About Title 24 Compliance Errors Checklist

1. What is a Title 24 compliance errors checklist?

It is a structured list of common issues that cause plan-check corrections, rejections, or verification problems in Title 24 energy documentation.

2. Do errors always mean the building is non-compliant?

No. Many “errors” are documentation alignment issues rather than performance failures.

3. What is the most common compliance error?

Mismatch between the energy forms and the plan set (windows, insulation, HVAC, or lighting).

4. Why do window values cause so many corrections?

Because reviewers can compare U-factor/SHGC values quickly and mismatches are easy to verify.

5. How do insulation notes cause corrections?

Conflicting or missing R-values across sheets prevent reviewers from confirming the modeled assemblies.

6. What HVAC issues are most common?

System type and efficiency mismatches between mechanical schedules and compliance forms.

7. Are ventilation issues common?

They can be. “Ventilation method unclear” often appears when plan notes do not match modeled assumptions.

8. Do commercial projects have different common errors?

Yes. Lighting power density, controls documentation, and space type labeling are frequent commercial issues.

9. What is an LPD issue?

LPD stands for lighting power density, and errors occur when calculations are missing or exceed allowed limits.

10. Can a wrong compliance pathway cause rejection?

Yes. If the project scope is misclassified (addition vs. remodel vs. TI), the report may be rejected.

11. Why does mixing plan revisions cause problems?

Because the report may match one set of sheets but not the version the city is reviewing.

12. Should I regenerate forms after making changes?

Yes. Regenerating a complete compliance package is often required for plan-check approval.

13. Do small changes require report updates?

Often yes. Changes to windows, insulation, HVAC, or lighting can require updated compliance documents.

14. What should be included in the submittal package?

The correct compliance certificates, supporting outputs, and the current plan set with consistent schedules.

15. Can missing files trigger rejection?

Yes. Even a compliant project can be rejected if required documents are missing or unclear.

16. How can I use this checklist for resubmissions?

Match each city comment to a checklist category, correct the root mismatch, regenerate forms, and resubmit cleanly.

17. Can contractors use this checklist?

Yes. Contractors can use it to confirm that installed equipment and plans align with the compliance documents.

18. Can architects and designers benefit from this checklist?

Yes. It helps catch documentation conflicts early and reduces plan-check revisions.

19. Can you review my documents using this checklist approach?

Yes. With your plans, forms, and city comments, a targeted review can identify the mismatch and recommend corrections.

20. How do I get help with Title 24 compliance errors?

Call (626) 365-1518 or upload your plans through the contact page to get started.