How Much Does a Title 24 Report With Energy Calculations Cost?

Call (626) 365-1518 | Alternative Energy Systems

The price of California energy-compliance documentation depends on more than the number of forms delivered at the end of the process. How Much Does a Title 24 Report With Energy Calculations Cost is best answered after reviewing the project plans, proposed construction, building size, energy systems, calculation complexity, requested turnaround, and whether revisions or plan-check corrections are involved.

A Title 24 report is supported by project-specific energy calculations. The consultant must review the design, identify the applicable building components and systems, enter the relevant project information, evaluate the proposed compliance measures, and prepare forms that can be coordinated with the permit plans.

For that reason, there is no single price that accurately applies to every home, ADU, addition, remodel, multifamily property, commercial tenant improvement, lighting project, or new nonresidential building.

Alternative Energy Systems provides project-specific quotes after reviewing enough information to understand the work involved. AES brings more than 30 years of California energy-compliance experience to residential, multifamily, mixed-use, and commercial projects.

Call (626) 365-1518 to describe your project, submit the current plans, and request pricing based on the report and energy calculations your permit project requires.

How Much Does a Title 24 Report With Energy Calculations Cost for Your Project?

The cost depends on the amount of professional review, modeling, calculation, documentation, and plan coordination required.

Pricing may be affected by:

Residential or commercial property type
New construction, addition, conversion, or alteration
Building size and number of conditioned areas
Building shape and orientation
Complexity of walls, roofs, ceilings, and floors
Window area, orientation, and performance
Number and type of HVAC systems
Duct location and design
Mechanical ventilation
Water-heating systems
Commercial lighting and controls
Available plans and specifications
Selected compliance method
Requested turnaround
Previous calculations or reports
Plan-check corrections
Design changes and requested revisions

A project-specific quote is generally more reliable than a price based only on the property address or estimated square footage.

Two buildings of similar size can require substantially different levels of analysis. One may have a simple envelope, complete plans, standard windows, and one clearly specified HVAC system. The other may have several roof types, large glazing areas, multiple mechanical systems, incomplete specifications, and an existing report that must be compared with revised plans.

What Are Title 24 Energy Calculations?

Title 24 energy calculations evaluate the energy-related features of a proposed California building project. The calculations support the determination of whether the design addresses the applicable energy-efficiency requirements.

Depending on the project, the analysis may consider:

Conditioned floor area
Building orientation
Exterior wall construction
Roof and ceiling assemblies
Floor assemblies
Insulation values
Window sizes and orientations
Window U-factors
Window solar heat gain coefficients
Exterior doors
Roofing characteristics
Heating equipment
Cooling equipment
Duct locations
Mechanical ventilation
Domestic or service water heating
Residential lighting measures
Commercial lighting power
Lighting-control systems
Other applicable compliance measures

The calculations are not separate from the report in the sense that they are unrelated services. The calculations are the technical analysis used to prepare the project-specific compliance documentation.

For additional information about the analysis, visit the Title 24 energy calculations page.

What Is Included in the Cost of a Report With Energy Calculations?

The exact scope should be confirmed in the project quote. Depending on the project, the service may include:

Review of the proposed project scope
Review of current architectural plans
Review of window and exterior-door information
Review of insulation and building-envelope details
Review of HVAC equipment and duct information
Review of ventilation requirements
Review of water-heating systems
Review of commercial lighting and controls when applicable
Identification of missing or conflicting project details
Completion of the applicable energy calculations
Evaluation of proposed compliance measures
Preparation of project-specific compliance forms
Identification of measures that must be coordinated with the plans

The final deliverable should reflect the actual proposed construction rather than a generic description of the property.

Before accepting a quote, ask which calculations, forms, reviews, and revision services are included.

Why Energy-Calculation Complexity Affects the Cost

The amount of calculation work depends on how much information must be evaluated and how many building features interact within the analysis.

A simple project may have:

A straightforward building shape
One conditioned area
A standard roof assembly
A complete window schedule
One clearly specified HVAC system
Complete insulation information
No previous corrections or revisions

A more complex project may have:

Several connected building sections
Multiple stories
Several roof and ceiling conditions
Numerous window types and orientations
Mixed existing and proposed construction
Multiple HVAC systems
Different duct locations
Central and individual water-heating systems
Commercial lighting zones and controls
Incomplete plans requiring additional coordination

More complicated projects can require additional review and data entry before the calculations can be completed accurately.

How Building Geometry Affects Energy-Calculation Pricing

The shape of the building can affect the amount of information used in the analysis.

Geometry-related factors may include:

Number of stories
Number of exterior walls
Building orientation
Several building wings
Multiple ceiling heights
Vaulted ceilings
Attic and non-attic roof assemblies
Raised floors
Floors over garages or unconditioned spaces
Mixed conditioned and unconditioned areas

A simple rectangular project may require less geometric coordination than an irregular building with several rooflines, offsets, additions, and attached existing construction.

Square footage matters, but it does not fully describe the calculation workload.

How Windows Affect the Cost of Energy Calculations

Windows and glazed doors can influence the energy analysis because their sizes, orientations, quantities, and performance values must be represented accurately.

The consultant may need to review:

Window identification numbers
Window width and height
Quantity
Orientation
U-factor
Solar heat gain coefficient
Frame type when relevant
Glazed exterior doors
Differences between plans, schedules, and elevations

A project with a complete and coordinated window schedule can generally be reviewed more efficiently than one with missing performance values or conflicting window sizes.

Extensive glazing or several different window conditions may also require more detailed analysis than a project with fewer standard openings.

How Insulation and Roof Assemblies Affect Pricing

The consultant must understand the proposed thermal boundary of the building.

The analysis may include:

Exterior wall insulation
Continuous insulation
Roof insulation
Ceiling insulation
Attic conditions
Vaulted ceiling assemblies
Floor insulation
Walls between conditioned and unconditioned spaces
Roofing and cool-roof characteristics when applicable

Projects with several wall or roof assemblies may require more coordination than projects using one clearly defined construction type.

A note stating “insulate per code” may not contain enough project-specific information to complete the calculations. Missing assembly details can increase the amount of communication needed before the report is finalized.

How HVAC Systems Affect the Cost

Heating and cooling systems can affect both the calculation scope and the forms prepared for the project.

The consultant may need to evaluate:

System type
Number of systems
Heating efficiency
Cooling efficiency
Heat-pump characteristics
Equipment capacity when applicable
Equipment location
Ducted or ductless configuration
Duct location
Duct insulation
Existing or proposed equipment
Systems serving separate building areas

A building with one complete equipment schedule may involve less coordination than a project with several systems, undecided equipment, or conflicting information between the architectural and mechanical plans.

How Ventilation and Water Heating Affect Pricing

Mechanical ventilation and water-heating systems may also be included in the analysis.

Ventilation information may involve:

Whole-building ventilation
Local exhaust
Outdoor-air systems
Proposed airflow
Ventilation equipment
Operating controls

Water-heating information may involve:

Equipment type
Fuel or energy source
Efficiency
Storage or tankless configuration
Heat-pump water heaters
Equipment location
Individual or central systems
Distribution information when applicable

Multifamily and commercial projects may require additional coordination when several units, tenant spaces, or central systems are involved.

How Much Does a Residential Title 24 Report With Energy Calculations Cost?

Residential pricing depends on the proposed building design and the information available.

Residential projects may include:

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

The calculations may evaluate:

Conditioned floor area
Building orientation
Wall and roof assemblies
Window area and performance
Heating and cooling equipment
Duct location
Ventilation
Domestic water heating
Applicable residential lighting measures

A quote should therefore be based on the residential plans rather than the word “house,” “ADU,” or “addition” alone.

How Much Does an ADU Report With Energy Calculations Cost?

ADU pricing depends on whether the unit is detached, attached, or converted from existing space.

The quote may be influenced by:

ADU size
Detached or attached construction
Existing or new conditioned space
Number and size of windows
Wall and roof assemblies
HVAC system type
Ducted or ductless equipment
Ventilation
Water-heating equipment
Completeness of the plans

A detached ADU with a complete plan set may involve a different level of analysis from a garage conversion where existing wall, floor, roof, and mechanical conditions are unclear.

To request pricing, provide:

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

Visit the ADU Title 24 page for related information.

How Much Does an Addition Report With Energy Calculations Cost?

Addition pricing can depend on both the new conditioned space and the relationship between the addition and the existing residence.

The analysis may require information about:

Existing floor area
New conditioned floor area
Altered exterior walls
New windows and doors
Roof and ceiling assemblies
Existing HVAC capacity
Extended ductwork
New mechanical equipment
Ventilation changes
Water-heating changes

A small addition is not automatically a simple calculation. Large window areas, unusual roof construction, or incomplete existing-building information can affect the amount of work required.

How Much Does a Remodel Report With Energy Calculations Cost?

Remodel pricing depends on which energy-related components are altered.

A remodel may affect:

Conditioned floor area
Exterior walls
Windows and doors
Insulation
Roofing
HVAC equipment
Ductwork
Ventilation
Water heating

A cosmetic interior remodel may have a different energy-compliance scope from a project that replaces windows, opens exterior walls, changes mechanical systems, and expands conditioned space.

Describe the complete work when requesting pricing so the quote reflects the actual project.

How Much Does a Commercial Report With Energy Calculations Cost?

Commercial and nonresidential pricing depends on the building use, project scope, systems, lighting design, plan quality, and coordination required among the different construction documents.

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 calculations may involve:

Building-envelope performance
Mechanical equipment
Ventilation
Service water heating
Interior lighting power
Exterior lighting
Lighting-control systems
Other applicable nonresidential measures

A commercial quote should be based on the full scope rather than only the tenant-space square footage.

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

How Commercial Lighting Calculations Affect the Cost

Commercial lighting analysis may require detailed information about fixtures, wattage, room uses, lighting zones, and controls.

The consultant may need:

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

A small tenant improvement with a complete fixture and control schedule may require less coordination than a larger project with several lighting zones, multiple control types, and incomplete electrical plans.

How Plan Quality Affects the Cost of the Calculations

Complete and coordinated plans help the consultant identify the project information without repeated requests for clarification.

Helpful documents may include:

Cover sheet and project data
Site plan
Existing and proposed floor plans
Exterior elevations
Building sections
Roof plans
Wall, roof, ceiling, and floor details
Window and door schedules
Mechanical plans
Electrical plans
Lighting plans and schedules
Equipment specifications

Additional review may be necessary when plans contain:

Conflicting floor areas
Several unidentified plan versions
Missing dimensions
Window schedules that do not match the elevations
Undefined insulation assemblies
Incomplete HVAC schedules
Missing ventilation details
Missing commercial lighting controls

Incomplete plans do not necessarily prevent AES from reviewing the project, but the missing information may affect the quote, schedule, and number of revisions required.

Does the Compliance Method Affect the Cost?

The applicable compliance approach may affect the analysis required for a particular project.

Some projects can be evaluated using clearly defined prescriptive measures. Others may require a more detailed performance-based analysis that considers how several building components and systems interact.

Factors may include:

Project type
Building design
Window area and performance
Insulation assemblies
Roof characteristics
Mechanical efficiency
Water heating
Commercial lighting and controls

AES must review the project before determining which approach and calculations are appropriate.

Does Expedited Turnaround Affect the Price?

The requested schedule may affect pricing when priority or expedited service is available.

Before requesting a fast turnaround, provide:

The complete current plan set
Window and door information
Insulation and roof details
HVAC specifications
Ventilation information
Water-heating information
Commercial lighting documents when applicable
The requested completion date
The planned permit-submittal date

Expedited scheduling does not eliminate the need for complete project information. Missing specifications and conflicting plans may prevent the calculations from being completed accurately by the requested date.

Call (626) 365-1518 to discuss availability and project timing.

Do Revisions to the Energy Calculations Cost Extra?

Revision pricing depends on what changed and the scope of the original agreement.

A minor correction may involve less work than a redesign that changes several components used in the calculations.

Revisions may be needed when the project changes:

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

When requesting revision pricing, submit the latest plans and a written summary of all changes.

Ask how revisions are handled before authorizing the initial report so the responsibilities and potential costs are clear.

How Much Do Plan-Check Correction Calculations Cost?

The cost of correction support depends on the building-department comments and whether the calculations, forms, plans, or specifications must be revised.

Correction comments may involve:

Missing compliance forms
Differences between calculations and plans
Incomplete window specifications
Missing insulation information
Mechanical-equipment discrepancies
Ventilation questions
Water-heating information
Commercial lighting power
Lighting controls
Outdated calculations

Submit the complete correction notice rather than one isolated comment.

AES may also need:

The latest architectural plans
Current mechanical plans
Current electrical and lighting plans
The previously submitted report
Updated specifications
A summary of revisions already completed

The complete package helps determine whether the correction requires a limited clarification or substantial recalculation.

Are HERS Testing Costs Included?

The energy report may identify residential measures that require field testing or verification. However, preparing the report and performing field verification are separate parts of the compliance process.

The Title 24 consultant prepares the energy analysis and applicable forms. Required field testing or verification is completed separately by the appropriate professional.

Ask whether the project quote includes only the report and calculations or any additional coordination services. Do not assume that field testing, registration, inspections, or other outside services are included unless they are identified in the proposal.

Not every project has the same verification requirements. The completed report can help the contractor and owner understand whether additional measures may apply.

For a comparison of related requirements, review Title 24 vs. CALGreen.

Can a Previous Report Reduce the Cost?

A previous report may provide useful information, but AES must determine whether it matches the current design.

The review may need to determine:

Whether the previous report applies to the same project
Whether the old plan set is available
Whether the conditioned floor area changed
Whether windows or insulation changed
Whether mechanical equipment changed
Whether water heating changed
Whether commercial lighting changed
Whether the permit scope expanded

Submit:

The previous report
The plans used for the previous calculations
The latest plan set
A written change summary
Updated product and equipment specifications
Existing correction comments

A previous report should not be reused automatically when the current plans describe a different project.

What Information Is Needed for an Accurate Quote?

To receive a useful quote for a Title 24 report with energy calculations, provide:

Project address
Permit jurisdiction
Residential or commercial property type
Description of the proposed work
Current architectural plans
Approximate building or project size
Window and exterior-door schedule
Insulation and roof information
HVAC specifications
Duct-location information
Ventilation details
Water-heating information
Commercial lighting documents when applicable
Requested turnaround
Previous reports
Plan-check correction notices

AES can review partial information and identify what is still needed. However, a quote based on current plans is generally more accurate than one based on a brief verbal description.

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

Can You Request Pricing With Preliminary Plans?

Preliminary plans can be reviewed to help define the likely scope.

The quote may need to be adjusted if the project later changes substantially.

Preliminary design decisions that may affect the work include:

Final conditioned floor area
Building geometry
Window sizes and quantities
Insulation assemblies
Roof design
HVAC systems
Duct locations
Ventilation
Water heating
Commercial lighting
Lighting controls

Tell AES which details remain undecided so the preliminary status of the project is understood.

What Should You Ask Before Accepting a Quote?

Review the proposed scope before authorizing the service.

Ask:

Does the quote include the energy calculations?
Which report forms are included?
Which plans were reviewed?
What information is still missing?
Does the quote cover residential or commercial calculations?
How is turnaround determined?
How are design changes handled?
How are calculation revisions handled?
How are plan-check corrections handled?
Are field tests or outside services included?
What happens if the project scope expands?
When is payment required?

A clearly defined quote can help prevent misunderstandings about the report, calculations, revisions, and additional services.

Should You Choose the Lowest Price?

The lowest quote may not always include the same level of review, calculation, documentation, and revision support.

When comparing providers, consider:

California energy-compliance experience
Experience with your project type
Quality of the plan-review process
Whether project-specific calculations are included
Communication about missing information
Plan-coordination support
Revision procedures
Correction-response assistance
Clarity of the proposed deliverables

An inexpensive report that does not match the current plans may create additional costs through revisions, resubmittals, or construction changes.

No report can guarantee complete permit approval. The documentation supports the energy-compliance portion of the permit application, but the full project remains subject to review by the applicable building department.

Why Choose Alternative Energy Systems?

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

AES brings more than 30 years of 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 documents before determining the work required. This allows the quote and energy analysis to reflect the proposed construction rather than a generic building description.

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

Request Pricing for a Report With Energy Calculations

Call (626) 365-1518 | Alternative Energy Systems

Understanding How Much Does a Title 24 Report With Energy Calculations Cost begins with reviewing the actual project plans. Building type, size, geometry, windows, insulation, mechanical systems, lighting, documentation, turnaround, and revisions can all affect the quote.

Alternative Energy Systems can review your residential or commercial project, identify the information needed for the calculations, define the proposed report scope, and provide pricing based on the work involved.

Call (626) 365-1518 to:

Describe your project
Ask which plans and specifications should be submitted
Request a quote for the report and energy calculations
Discuss the anticipated turnaround
Request pricing for plan-check corrections
Request revisions to existing calculations and forms

You may also begin through the contact page. If service has already been arranged, payment can be completed through the AES payment page.

Do not rely on a generic report price that does not account for the energy calculations your project requires. Call Alternative Energy Systems at (626) 365-1518 and request a quote based on the current plans.

Frequently Asked Questions: How Much Does a Title 24 Report With Energy Calculations Cost?

How Much Does a Title 24 Report With Energy Calculations Cost?

The cost depends on the project type, size, geometry, building envelope, energy systems, available plans, requested turnaround, and whether revisions or plan-check corrections are involved.

Are energy calculations included in a Title 24 report?

The project-specific calculations support the compliance measures and forms prepared for the report. Confirm the exact calculations and deliverables included in the project quote.

Why is there no universal price?

Every building design is different. Window area, insulation, roof construction, HVAC systems, ventilation, water heating, lighting, and plan quality can affect the amount of analysis required.

Does square footage determine the entire cost?

No. Square footage is one factor. Building geometry, number of systems, project type, calculation complexity, documentation, corrections, and revisions can also affect the quote.

How much does an ADU report with calculations cost?

ADU pricing depends on whether the project is attached, detached, or converted from existing space, along with its size, envelope, windows, HVAC system, ventilation, water heating, and plan completeness.

How much does an addition report with calculations cost?

Pricing depends on the new conditioned area, relationship to the existing building, windows, insulation, roof assemblies, HVAC systems, and available project information.

How much does a remodel report with calculations cost?

The price depends on which energy-related components change, including conditioned space, windows, exterior walls, insulation, roofing, HVAC equipment, ducts, ventilation, and water heating.

How much does a commercial report with calculations cost?

Commercial pricing depends on occupancy, project size, envelope, mechanical systems, ventilation, service water heating, lighting, controls, and the amount of coordination required.

Does commercial lighting analysis affect the cost?

Yes. Fixture wattage, quantities, space uses, lighting zones, occupancy sensors, daylighting controls, exterior lighting, and the quality of the electrical documents may affect the work required.

Does expedited service affect pricing?

The requested turnaround may affect the quote when expedited scheduling is available. Submit the complete plans and desired completion date for review.

Do calculation revisions cost extra?

Revision pricing depends on what changed and the original service agreement. A minor clarification may require less work than substantial changes to the building envelope, systems, or project scope.

Are plan-check correction calculations included?

Correction support may be a separate or additional service. Submit the complete correction notice and current plans so AES can determine the work required.

Does the price include HERS testing?

The report may identify measures requiring field verification, but report preparation and field testing are separate parts of the compliance process unless a proposal states otherwise.

Can a previous report reduce the price?

A previous report may provide useful background, but AES must compare it with the current plans and determine whether the calculations and forms remain applicable.

What should I submit for a quote?

Submit the current plans, project description, address, jurisdiction, window schedule, insulation details, HVAC specifications, ventilation, water heating, commercial lighting documents, requested schedule, and any previous reports or corrections.

Can I request pricing with preliminary plans?

Yes. Preliminary plans can be reviewed, but the quote may change if the building size, geometry, systems, windows, or overall scope changes substantially.

Does the report guarantee permit approval?

No. The report and calculations support the energy-compliance portion of the application, but the complete project remains subject to review by the applicable building department.

How do I request a quote?

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