Title 24 Energy Compliance in Long Beach, CA

Title 24 Energy Compliance in Long Beach, CA

Title 24 energy compliance means your ADU’s drawings include a California Energy Commission-approved calculation set showing the building meets the state’s current residential energy standards – insulation values, window performance ratings, mechanical equipment efficiency, and lighting controls. In Long Beach, every newly permitted ADU requires a Title 24 report before the city will issue a building permit, full stop. Without it, the permit counter sends the application back, and the project sits until the documentation is in order.

At Ellery ADU Studio Long Beach, the Title 24 report is not a line item we outsource at the end of design and hand off to whoever answers the phone that day. It’s authored in parallel with the architectural drawings, so the insulation strategy, the window-to-wall ratio, and the HVAC specification are coordinated from the first draft – not patched in after the fact when a plan-check comment arrives. That coordination is part of what we mean when we describe our ADU Design & Permitting in Long Beach work as a single contract, not a relay race between separate firms.

If you have a written estimate from another firm and want a second opinion on what the Title 24 scope actually covers, call us at (562) 414-4842. The review is free, and we’ll tell you specifically what the report does and does not include.

When You Need Title 24 Energy Compliance

Title 24 compliance applies to more ADU scenarios in Long Beach than most homeowners expect when they first start planning.

• New detached ADUs on any Long Beach lot: A new structure of any size requires a full Title 24 energy package. California Health and Safety Code Section 18938 and the 2022 Building Energy Efficiency Standards (effective January 1, 2023) apply to every new residential occupancy – there is no square-footage floor that exempts a small backyard studio.
• Garage conversions adding conditioned floor area: When a previously unconditioned garage becomes heated and cooled living space, the project triggers Title 24 requirements for insulation, glazing, and mechanical systems. Long Beach Building and Safety will not approve a garage conversion permit set without the compliance documentation.
• Junior ADUs that add a new heating or cooling system: A JADU carved out of existing interior square footage with no mechanical changes may qualify for a simplified compliance path, but the moment a mini-split or new HVAC unit is added, a Title 24 report is required.
• Prefab and modular ADU installations: Units from brands like Abodu and Plant Prefab arrive with their own factory energy specs, but those specs still have to be translated into a site-specific Title 24 report that accounts for orientation on your Long Beach lot, local climate zone data (Long Beach falls within CEC Climate Zone 8), and any site-built components like covered porches, attached storage, or utility connections.
• ADU additions that expand existing permitted structures: Adding square footage to a previously permitted ADU restarts the energy compliance clock. The addition is evaluated as new construction under current standards, not grandfathered under the original permit’s energy report.
• Projects applying for the ADU amnesty program: Long Beach has processed unpermitted ADU legalization applications as the state’s amnesty provisions have expanded. Legalizing an existing structure still requires meeting current energy standards – or demonstrating equivalency – and that demonstration requires documentation.

Our Title 24 Energy Compliance Process

Below is the sequence we follow on every project. The steps are numbered because the order matters – a Title 24 report that is not coordinated with the architectural drawings produces plan-check corrections that cost time and money to resolve.

1. Site and orientation data collection. We record the lot address, parcel orientation (compass bearing of each wall face), proposed window locations and sizes, and the roof pitch and area. In Long Beach, a unit facing south toward Anaheim Street behaves differently under the energy model than one facing west toward the coast, where afternoon marine layer and ocean breeze complicate the cooling load calculation. We document what is actually on the site – not what a generic template assumes.
2. Climate Zone 8 energy modeling. Long Beach sits in CEC Climate Zone 8, which carries specific baseline assumptions about outdoor temperature ranges, humidity, and solar radiation. We run the compliance calculation using CEC-approved software (currently EnergyPro or an equivalent Title 24-certified tool) against those Zone 8 baselines. The output is the CF1R form – the Certificate of Compliance that becomes part of the permit set.
3. Insulation, glazing, and mechanical specification coordination. The report does not live in a vacuum. If the energy model requires R-21 wall insulation and dual-pane low-e windows with a specific U-factor, those specs appear in the architectural drawings and the finish schedule simultaneously. We don’t send two separate documents that contradict each other – which is the most common source of plan-check corrections on Title 24 submissions we’ve reviewed for clients who came to us mid-project.
4. Solar-ready and battery-ready documentation. The 2022 Energy Standards require most new ADUs to be solar-ready and, in some configurations, battery-ready. We prepare the mandatory solar zone diagram, the conduit routing documentation, and the electrical panel spec that satisfies this requirement. If the project is adding rooftop PV as part of the scope, we coordinate the solar system sizing with the energy model so the report reflects the actual installation.
5. Permit set integration and plan-check response. The Title 24 forms (CF1R, and later the CF2R and CF3R field verification forms) are incorporated into the full permit set before submission to Long Beach Building and Safety. If a plan checker returns a comment specific to the energy documentation, we respond in writing with corrected forms – under the same contract, at no additional charge, per Haven Standard Clause 5 (No Surprises).
6. Field verification and final CF3R. When construction reaches the relevant inspection milestones, the CF2R (Installation Certificate) and CF3R (Field Verification and Diagnostic Test) forms have to be signed by a certified HERS rater. We coordinate that inspection and make sure the signed forms are in the project file before the final building inspection is requested. Clients receive a copy of every signed compliance document as part of the photo record we provide at project close.

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Title 24 Energy Compliance Pricing in Long Beach

Title 24 compliance for an ADU in Long Beach typically runs $800 to $2,200 when it’s prepared as a standalone document by an energy consultant. At Ellery ADU Studio Long Beach, the Title 24 report is included within our ADU Design & Permitting services – it’s not a separate line item you’re invoiced for after the drawings are done. The written price you receive before any work starts, per Haven Standard Clause 1, covers the energy report, the permit set, the plan-check responses, and the coordination of the HERS field verification.

For reference, here is how the variables that affect Title 24 cost break down when priced independently:

• ADU size (square footage): A 400 sq ft studio requires a simpler energy model than a 1,000 sq ft two-bedroom unit. Larger floor areas with more envelope surfaces, more glazing, and more mechanical zones take longer to model accurately.
• Number of HVAC systems: Each separately ducted or ductless zone adds calculation complexity. A single mini-split serving one room is straightforward; a two-zone system with supplemental ventilation requires additional modeling inputs.
• Solar and battery-ready documentation scope: If the project is adding rooftop PV, the solar system sizing has to be modeled within the Title 24 calculation, which adds time.
• Plan-check correction cycles: An energy report that doesn’t coordinate with the architectural drawings often triggers plan-check corrections. Each correction cycle costs time and, if you’re paying separately for the energy consultant’s time, money. Our integrated approach eliminates most of these cycles.
• HERS rater coordination: The CF3R field verification fee in the Los Angeles metro area typically runs $250 to $500 depending on the scope of diagnostic testing required (duct leakage, air infiltration, refrigerant charge verification). We coordinate the rater; you know the cost before the project starts.

All pricing at Ellery ADU Studio Long Beach is written before any work begins. If you have a quote from another firm that separates the energy compliance cost from the design fee, call (562) 414-4842 and we’ll walk through How Much Does ADU Design & Permitting Cost? (2026 Price Guide) - Long Beach, CA with you – no charge for that conversation.

What Happens When Title 24 Compliance Is Wrong

Long Beach Building and Safety reviews Title 24 submissions carefully, and the consequences of an incomplete or miscalculated report ripple through the project timeline in predictable ways. Plan-check corrections specific to energy compliance add two to four weeks to the review cycle on average, because the city’s energy plan checker reviews corrections on a separate queue from the primary plan check.

Further down the project, a field verification failure – where the installed insulation, glazing, or mechanical equipment doesn’t match the CF1R – requires either a corrected installation or an amended compliance report. Either path delays the final inspection. In Long Beach’s coastal neighborhoods like Belmont Shore or Naples, where lot sizes are constrained and construction windows are tight due to HOA restrictions or shared-wall conditions, a delayed final inspection has direct financial consequences: the unit can’t be rented until it’s finaled, and the loan clock keeps running.

The 365-Day Done Right Promise that governs every Ellery project includes the permit documentation. If the finished ADU is not built to the permitted drawings – including the energy specs – we make it right. That commitment is in writing before the project starts, not offered as a goodwill gesture afterward.

Title 24 and Long Beach’s Climate Zone 8 Reality

Climate Zone 8 covers most of Long Beach and the coastal Los Angeles basin. It’s a moderate climate by California standards – mild winters, summers tempered by marine layer – but the energy model still has to account for real variables that affect performance. Afternoon west-facing glazing in Bixby Knolls heats up differently than the same window size in a north-facing unit in Signal Hill. The marine influence that keeps Long Beach cooler than Pomona in July also affects the ventilation credit the energy model can claim.

Projects using manufactured components – James Hardie fiber cement siding, for instance – benefit from the thermal resistance values those products carry, and we incorporate those values into the compliance calculation rather than using default assumptions. The difference between a default wall assembly and one that accurately reflects the specified cladding can shift the energy calculation enough to reduce the required mechanical system size, which has a direct effect on construction cost.

This is the kind of coordination that happens naturally when the design team and the energy compliance team are the same group of people working from the same drawings. It’s the operational logic behind the studio being structured as a design-build practice rather than two separate contracts.

FAQs – Title 24 Energy Compliance

Is a Title 24 report required for every ADU in Long Beach, or only new construction?

A Title 24 energy report is required for any ADU project that creates new conditioned square footage or adds or replaces a mechanical system in Long Beach. That includes new detached ADUs, garage conversions, and additions to existing ADUs. The only partial exception is a Junior ADU that involves no structural changes and no new heating or cooling equipment – but the moment a mini-split or new water heater is added, the requirement applies. Long Beach Building and Safety will not issue a permit for a conditioned ADU without the CF1R compliance form in the permit set. Call (562) 414-4842 if you’re not sure which path your project falls under – we’ll give you a direct answer.

What is a HERS rater, and do I have to hire one separately?

A HERS (Home Energy Rating System) rater is a third-party inspector certified by the California Energy Commission to verify that the installed building components match what the Title 24 report specified. They sign the CF3R field verification form, which is required before Long Beach will issue a final inspection approval. You do not hire one separately when you work with Ellery ADU Studio – we coordinate the HERS inspection as part of the project scope, and the cost is included in the written price you receive before work starts.

How long does the Title 24 report take to prepare?

A Title 24 compliance report for a standard Long Beach ADU – a single-zone, single-story unit in the 400 to 800 sq ft range – takes five to ten business days to prepare once the architectural drawings are finalized. Because we develop the energy report in parallel with the drawings rather than after them, that timeline doesn’t add to the overall permit preparation schedule. Projects with more complex mechanical systems or rooftop PV integration take longer to model accurately, and we’ll give you a specific timeline in writing before work starts.

What documents does Ellery provide when the Title 24 process is complete?

At permit submission, clients receive the CF1R Certificate of Compliance as part of the full permit set. When construction reaches the relevant milestones, we coordinate the CF2R Installation Certificate (signed by the contractor at installation) and the CF3R Field Verification form (signed by the HERS rater after inspection). All three documents go into the project’s photo record, which every Ellery client receives at project close – a physical paper trail showing the energy compliance chain from design through final inspection. These are the documents you’ll need if you ever refinance, sell, or add to the ADU years from now.

Key Takeaways

• Every permitted ADU in Long Beach requires a Title 24 energy report – garage conversions, new detached units, and prefab installations all fall under this requirement.
• Long Beach sits in CEC Climate Zone 8, which shapes the baseline assumptions in every energy calculation. Local orientation, glazing placement, and cladding specs all affect the model output.
• At Ellery ADU Studio Long Beach, the Title 24 report is prepared in parallel with the architectural drawings under the same contract – not outsourced after the design is done.
• The written price you receive before any work starts, per Haven Standard Clause 1, includes the energy report, permit set, plan-check responses, and HERS rater coordination.
• At project close, you receive the CF1R, CF2R, and CF3R documents as part of your project photo record.
• The 365-Day Done Right Promise applies to the full permitted scope, including energy specifications.
• Call (562) 414-4842 for a free second opinion on any written estimate – we’ll tell you exactly what the Title 24 scope covers and what it doesn’t.

Nadia Ellery and the team at Ellery ADU Studio Long Beach have produced Title 24 compliance packages for more than 900 ADU projects since 2015, every one of them integrated into the permit set from the first drawing revision rather than appended at the end. If you’re starting an ADU project in Long Beach – or stuck mid-project because a Title 24 correction came back from plan check – search ADU Design & Permitting Near Me in Long Beach, CA and call (562) 414-4842. A live person answers, there’s no voicemail queue, and the first conversation costs nothing.

Written by Nadia Ellery, Owner at Ellery ADU Studio Long Beach, serving Long Beach.