Will a Title 24 Report Be Accepted by the Building Department?

Call (626) 365-1518 | Alternative Energy Systems

Building-department acceptance depends on whether the energy documentation is complete, accurate, appropriate for the project, and coordinated with the permit drawings. Will a Title 24 Report Be Accepted by the Building Department cannot be answered with an unconditional guarantee because the jurisdiction controls its own review and may request clarification or corrections.

A professionally prepared Title 24 report can support the energy-compliance portion of a California permit application. The report should be based on the current plans and should accurately document the proposed building envelope, windows, HVAC equipment, duct locations, ventilation, water heating, lighting, controls, and other applicable energy measures.

Acceptance can become more difficult when the report:

Uses outdated plans
Lists a different project address
Does not match the proposed floor area
Contains window information that conflicts with the drawings
Uses different insulation values from the plan details
Lists HVAC equipment that is no longer proposed
Omits required project information or forms
Does not reflect recent design revisions

Alternative Energy Systems brings more than 30 years of California energy-compliance experience to residential, multifamily, mixed-use, and commercial permit projects. AES reviews the project documents, identifies missing information, completes the applicable analysis, and helps coordinate the resulting forms with the current design.

Call (626) 365-1518 to submit your plans, request a Title 24 report, or receive help with energy-related plan-check corrections.

Will a Title 24 Report Be Accepted by the Building Department Automatically?

No Title 24 report should be treated as automatically accepted before the building department reviews it.

The jurisdiction may evaluate whether:

The correct forms were submitted
The documentation applies to the correct property
The project type and scope are identified accurately
The calculations use the current building design
The report matches the architectural plans
The mechanical information is consistent
The lighting information is complete when applicable
The required energy measures appear on the plans
Additional clarification or verification is needed

A report may be professionally prepared and still receive a correction when the plans change after the calculations are completed or when another part of the permit package shows inconsistent information.

The purpose of professional preparation is to reduce preventable discrepancies and provide the building department with a clear, project-specific compliance package. It does not remove the jurisdiction’s authority to review the documents.

What Does Building-Department Acceptance Mean?

Acceptance generally means that the jurisdiction has reviewed the submitted energy documentation and determined that it can proceed as part of the permit package.

That does not necessarily mean:

The entire permit has been approved
No corrections will be issued by another department
Every construction product has been approved
The building has passed inspection
All field-verification requirements have been completed
The project can be changed without revising the report

The complete permit application may also require review of:

Zoning
Architectural plans
Structural engineering
Fire and life-safety requirements
Accessibility
Mechanical plans
Electrical plans
Plumbing plans
CALGreen documentation
Other jurisdiction-specific requirements

The Title 24 report supports the energy-compliance portion of this larger process.

What Makes a Title 24 Report More Likely to Be Accepted?

A strong submission is based on complete project information and coordinated construction documents.

The report should:

Identify the correct project address
Use the current plan set
Reflect the correct conditioned floor area
Identify the applicable project scope
Include the appropriate energy calculations
Include the applicable compliance forms
Match the window and door schedules
Match the insulation and roof details
Match the proposed HVAC equipment
Match the duct and ventilation design
Match the water-heating specifications
Match commercial lighting and controls when applicable

The construction drawings should also show the energy measures used in the analysis.

A report cannot compensate for a permit set that contains conflicting information. Likewise, well-developed plans may remain incomplete when the applicable energy forms have not been prepared.

The Report Must Match the Current Plans

Plan coordination is one of the most important factors affecting acceptance.

The report and drawings should agree regarding:

Project address
Occupancy or building type
Conditioned floor area
Number of units or conditioned spaces
Building orientation
Window sizes and locations
Window performance values
Exterior-door information
Wall, roof, ceiling, and floor insulation
HVAC equipment
Duct locations
Ventilation systems
Water-heating equipment
Commercial lighting fixtures
Lighting controls

A correct energy calculation based on an outdated floor plan may still lead to corrections.

For example, the report may show one window configuration while the elevations show a later design. The mechanical schedule may list one HVAC model while the report uses another. The architectural sections may show a different insulation assembly from the one used in the analysis.

These differences should be corrected before permit submittal whenever possible.

Use the Correct Project Address and Identification

Basic identification errors can create unnecessary questions during plan review.

Verify:

Street address
Unit or suite number
Client or project name
Residential or commercial designation
New construction, addition, alteration, or conversion scope
Plan date or revision date

Do not submit a report copied from another property or based on a similar project.

Title 24 calculations are project-specific. A report prepared for another building should not be assumed to apply merely because the square footage or project type appears similar.

Submit the Applicable Forms

The forms required for a project depend on the occupancy, construction scope, building systems, and selected compliance approach.

A new home may not use the same documentation as:

A detached ADU
A garage conversion
A residential addition
An HVAC replacement
A commercial tenant improvement
A lighting alteration
A new nonresidential building

AES reviews the project scope to determine what analysis and documentation may apply.

Submitting incomplete or unrelated forms can result in corrections even when parts of the energy analysis are otherwise accurate.

Window Information Must Be Consistent

Window discrepancies are a common source of coordination problems.

The report, plans, elevations, and window schedule should agree regarding:

Window identification numbers
Width and height
Quantity
Location
Orientation
U-factor
Solar heat gain coefficient
Glazed exterior doors

Before submitting the permit package, check for:

Windows appearing on elevations but not on the schedule
Different sizes shown on separate sheets
Missing performance values
Products changed after the report was prepared
New windows added during design revisions

A revised window design may require updated calculations and forms.

Insulation and Roof Details Must Match

The report should reflect the actual proposed building-envelope assemblies.

Review the plans and report for consistency involving:

Exterior wall insulation
Continuous insulation
Roof insulation
Ceiling insulation
Attic configuration
Vaulted ceiling assemblies
Raised-floor insulation
Floors over garages or unconditioned spaces
Roofing characteristics

A general plan note stating “insulate per code” may not communicate the project-specific assembly used in the calculations.

The construction sections and details should identify the insulation values and locations represented in the report.

Mechanical Information Must Be Coordinated

The report may evaluate heating, cooling, ducts, ventilation, and other mechanical features.

The documentation should agree regarding:

System type
Number of systems
Heating efficiency
Cooling efficiency
Heat-pump information
Equipment location
Ducted or ductless configuration
Duct location
Duct insulation
Ventilation equipment
Areas served by each system

Mechanical equipment is sometimes selected or changed after the initial energy analysis. When that happens, send the updated specifications to AES before submitting the old report with the new mechanical schedule.

Water-Heating Information Must Be Current

Water-heating details can also affect the report.

Verify:

Equipment type
Fuel or energy source
Efficiency
Storage, tankless, or heat-pump configuration
Equipment location
Individual or central service
Distribution information when applicable

A change from one water-heating system to another may require the documentation to be reviewed or revised.

Commercial Lighting and Controls Must Match the Electrical Plans

Commercial and nonresidential projects may require detailed lighting information.

The building department may review:

Lighting floor plans
Fixture schedules
Fixture identification numbers
Fixture wattage
Fixture quantities
Room or space use
Occupancy sensors
Automatic shutoff controls
Daylighting controls
Exterior lighting
Control notes and diagrams

The report, fixture schedule, and electrical plans should describe the same lighting design.

Missing wattage, undefined controls, or fixtures changed after the analysis can lead to correction comments.

For related commercial services, review Title 24 compliance services and Title 24 energy analysis.

Will a Residential Title 24 Report Be Accepted?

A residential report can support permit review when it accurately represents the proposed project and includes the applicable documentation.

Residential projects may include:

New single-family homes
New multifamily buildings
Detached ADUs
Attached ADUs
Garage conversions
Room additions
Second-story additions
Major remodels
Window or envelope alterations
HVAC-related permit projects

Residential calculations may evaluate:

Conditioned floor area
Building orientation
Wall, roof, ceiling, and floor assemblies
Window area and performance
Heating and cooling equipment
Duct locations
Mechanical ventilation
Domestic water heating
Applicable residential lighting measures

The report should be prepared from the residential plans being submitted to the jurisdiction.

Will an ADU Title 24 Report Be Accepted?

An ADU report should be based on the exact accessory dwelling unit shown in the permit drawings.

AES may need:

ADU floor plan
Exterior elevations
Building sections
Roof plan
Window and exterior-door schedule
Insulation details
HVAC specifications
Ventilation information
Water-heating details

For an attached ADU or garage conversion, the plans should distinguish:

Existing conditioned space
Existing unconditioned space
New conditioned living area
New or altered walls
Existing systems that remain
New or replaced equipment

An ADU report prepared from preliminary plans may require revision if the windows, floor area, roof, insulation, HVAC system, or water-heating design changes.

Visit the ADU Title 24 page for additional information.

Will an Addition or Remodel Report Be Accepted?

An addition or remodel report should identify the energy-related portions of the proposed work clearly.

The plan set may need to show:

Existing floor area
New conditioned floor area
Removed and proposed walls
New windows and doors
New insulation
Roof and ceiling changes
Existing or proposed HVAC systems
Duct extensions
Ventilation changes
Water-heating changes

Corrections may result when the report evaluates one scope while the plans show additional work.

Describe the complete project before the calculations begin.

Will a Commercial Title 24 Report Be Accepted?

Commercial acceptance depends on whether the report and supporting plans address the applicable nonresidential scope accurately.

Commercial projects may include:

New nonresidential buildings
Office tenant improvements
Retail build-outs
Restaurant improvements
Warehouse alterations
Mixed-use projects
Commercial HVAC replacements
Interior lighting alterations
Exterior lighting projects
Multifamily common-area improvements

Commercial documentation may involve:

Building-envelope calculations
Mechanical systems
Ventilation
Service water heating
Interior lighting power
Exterior lighting
Lighting controls

Commercial projects often require coordination among architects, mechanical engineers, electrical designers, contractors, owners, and property managers.

Conflicting information among the separate design disciplines can result in plan-check comments.

Why Might the Building Department Reject or Correct a Report?

A building department may request corrections when:

The required forms are missing
The project address is incorrect
The report applies to an older plan version
The floor area does not match the plans
The window schedule conflicts with the calculations
Insulation details are missing or inconsistent
Mechanical equipment differs between documents
Ventilation information is incomplete
Water-heating specifications do not match
Commercial lighting power is incomplete
Lighting controls are not documented
The project scope changed after the report was prepared
Additional clarification is requested

A correction does not always mean the entire energy analysis is unusable.

The issue may require:

A corrected project reference
An updated product specification
A revised plan note
An updated compliance form
A recalculation based on changed plans
Coordination among the design documents

AES can review the complete correction notice and determine what energy-related response is needed.

What Should You Send After Receiving Corrections?

Send AES:

The complete building-department correction notice
The latest architectural plan set
Current mechanical plans
Current electrical and lighting plans
The previously submitted Title 24 report
Updated product and equipment specifications
A written summary of changes already made

Do not send only one sentence copied from the correction notice when the complete document is available.

The surrounding comments can provide important context and help determine whether the issue affects the forms, calculations, plan notes, or another design discipline.

What Happens if the Plans Change After the Report Is Prepared?

The report may need to be revised whenever a design change affects information used in the analysis.

Changes may include:

Conditioned floor area
Building geometry
Window sizes
Window performance values
Exterior doors
Insulation values
Roof or ceiling assemblies
HVAC equipment
Duct locations
Ventilation systems
Water-heating equipment
Commercial lighting fixtures
Lighting controls
The overall permit scope

Submit the latest plans and a written change summary so AES can identify which calculations and forms require revision.

Do not submit an old report with substantially revised drawings and assume the building department will accept the combination.

Can a Previously Accepted Report Be Reused?

A previously accepted report may provide useful background, but it should not be reused automatically.

AES may need:

The previous report
The plans used to prepare that report
The current plan set
Updated window information
Updated insulation details
Current HVAC specifications
Current water-heating information
Updated commercial lighting documents
A written summary of project changes

Prior acceptance applied to the project information reviewed at that time. It does not automatically establish acceptance of a different design, revised scope, or new permit application.

Does HERS Verification Affect Acceptance?

Some residential projects may include measures requiring field testing or verification.

The Title 24 consultant prepares the energy analysis and applicable forms. Field testing and verification are completed separately by the appropriate professional.

The report may identify measures involving:

Duct systems
Airflow
Mechanical equipment
Other performance-sensitive features

A report is not a substitute for required field testing, construction inspection, or installation verification.

The project team should understand:

Which measures require verification
Who is responsible for arranging it
When it must occur
What documentation must be completed

For related information, review Title 24 vs. CALGreen.

Does AES Guarantee Building-Department Acceptance?

No professional should promise unconditional approval of a complete permit application.

The building department controls:

Its review procedures
Its interpretation of the submitted documents
Its correction comments
Its processing schedule
Its final permit decision

AES can prepare project-specific energy documentation, identify missing information, coordinate the report with the plans, and assist with energy-related corrections.

AES cannot control:

Other design disciplines
Unreported project changes
Incomplete information supplied by the project team
Building-department processing times
Corrections unrelated to the energy documentation
Construction that differs from the approved plans

The goal is to provide accurate, coordinated energy documentation that gives the project a stronger basis for plan review.

How Can You Improve the Chance of Acceptance?

Before submitting the report:

Use the Current Plans

Confirm that AES received the same plan set being submitted to the building department.

Review the Project Address

Make sure the address, unit, suite, and project name are correct.

Compare the Windows

Confirm that sizes, quantities, locations, and performance values match.

Compare Insulation and Roof Details

Verify that the plan sections show the assemblies used in the calculations.

Compare Mechanical Equipment

Confirm that the report and mechanical schedule list the same systems.

Review Ventilation and Water Heating

Check that the current equipment and configurations are documented.

Review Commercial Lighting

Confirm that fixture wattage, quantities, room uses, and controls match the electrical plans.

Include the Applicable Forms

Make sure the complete energy-compliance package is included with the permit set.

Report Design Changes Promptly

Notify AES before submitting revised plans with an outdated report.

Respond to Corrections Completely

Send the full correction notice and latest plans rather than addressing comments in isolation.

When Should You Request the Report?

Request the report after the project has enough detail to identify the building envelope and major systems, but before the permit package is treated as final.

Early review can help identify unresolved information involving:

Windows
Insulation
Roof construction
HVAC equipment
Duct locations
Ventilation
Water heating
Commercial lighting
Lighting controls

Waiting until the intended permit-submittal date leaves less time to resolve conflicts and update the drawings.

Before sending files, review what AES will need from you.

Why Choose Alternative Energy Systems?

Alternative Energy Systems provides professional Title 24 report and energy-calculation support for homeowners, contractors, architects, designers, developers, property managers, and commercial clients throughout California.

AES brings more than 30 years of California energy-compliance experience to:

New residential construction
New commercial construction
ADUs and garage conversions
Additions and remodels
Multifamily improvements
Commercial tenant improvements
HVAC and lighting projects
Plan-check corrections
Revisions to existing reports and calculations

AES reviews the actual project instead of relying on generic documentation. The goal is to prepare an energy-compliance package that reflects the current plans and provides clear support during plan review.

Learn more on the About Us page or review the company’s professional background on the clients page.

Prepare Your Title 24 Report for Plan Review

Call (626) 365-1518 | Alternative Energy Systems

Understanding Will a Title 24 Report Be Accepted by the Building Department requires a review of the actual project. The report must contain the applicable calculations and forms, match the current drawings, and reflect the proposed windows, insulation, HVAC equipment, ventilation, water heating, lighting, and controls.

Alternative Energy Systems can review your residential or commercial project, identify missing information, prepare the applicable energy analysis, coordinate the report with the plans, and assist when the building department issues energy-related corrections.

Call (626) 365-1518 to:

Describe your project
Submit the current plans
Request a project-specific Title 24 report
Ask which documents should be provided
Discuss the anticipated turnaround
Request help with correction comments
Request revisions to an existing report

You may also begin through the contact page. When the service and payment amount have already been arranged, payment can be completed through the AES payment page.

Do not submit an outdated or uncoordinated report and assume it will be accepted. Call Alternative Energy Systems at (626) 365-1518 for professional help preparing the energy documentation for your current permit plans.

Frequently Asked Questions: Will a Title 24 Report Be Accepted by the Building Department?

Will a Title 24 Report Be Accepted by the Building Department?

A properly prepared and coordinated report can support building-department review, but acceptance cannot be guaranteed. The jurisdiction controls its review and may request clarification or corrections.

Is every professionally prepared report automatically accepted?

No. The report must apply to the correct project, include the applicable forms, and match the current permit plans.

Does acceptance mean the entire permit is approved?

No. The building department may still review zoning, architecture, structural engineering, fire safety, accessibility, mechanical, electrical, plumbing, CALGreen, and other requirements.

What is the most important factor affecting acceptance?

The report, calculations, forms, specifications, and construction drawings should describe the same project.

Can the report be accepted if the plans changed?

The report may need revision when the plans change. Submit the updated drawings and a written change summary for review.

Can I use a report prepared for another property?

No. Title 24 documentation should be based on the actual property and proposed design.

Can I reuse an old report?

An old report should be compared with the current plans. Changes to floor area, windows, insulation, HVAC, water heating, lighting, or project scope may require revision.

What window information must match?

Window sizes, quantities, locations, orientations, U-factors, solar heat gain coefficients, and glazed-door information should be coordinated.

What mechanical information must match?

The report and plans should identify the same system types, efficiencies, equipment locations, duct conditions, and ventilation systems.

What commercial lighting information is reviewed?

The jurisdiction may review fixture wattage, quantities, space uses, occupancy sensors, automatic controls, daylighting controls, and exterior lighting information.

Why might the building department issue corrections?

Corrections may result from missing forms, outdated plans, inconsistent specifications, incomplete notes, mechanical conflicts, lighting-control issues, or differences between the report and drawings.

What should I send AES after receiving corrections?

Send the complete correction notice, latest plans, previous report, updated specifications, and a written summary of changes already made.

Does AES guarantee acceptance?

No. AES can prepare and coordinate the energy documentation, but the building department controls its review and final decisions.

Does a report guarantee permit approval?

No. The report supports the energy-compliance portion of the application. The complete permit package remains subject to jurisdictional review.

Does the report include building-department submission?

Do not assume that AES submits the complete permit package unless that service has been arranged. The architect, designer, contractor, owner, or permit coordinator may manage submission.

Does the report include HERS testing?

The report may identify verification measures, but field testing and inspections are separate activities performed by the appropriate professional.

Can AES revise a rejected or corrected report?

AES can review the complete correction notice and current plans to determine whether calculations, forms, specifications, or plan notes require revision.

How can I reduce the chance of corrections?

Submit one current plan set, provide complete specifications, coordinate all energy measures, and report design changes before permit submittal.

How do I request a report?

Call Alternative Energy Systems at (626) 365-1518, describe the project, and submit the current plans for review.