Title 24 Energy Compliance in Austin, TX
Title 24 energy compliance in Austin means proving your ADU design meets California’s building energy efficiency standards before the city will issue a permit or sign off on final inspection. The documentation package includes a compliance report (CF-1R), a registration with an approved HERS provider, and a final verification (CF-2R/CF-3R) once the work is complete. If you’re building a garage conversion, backyard unit, or room addition in Travis County, this paperwork has to be correct the first time, because the Austin permitting desk will not process your application without it.
Fielding ADU Austin handles Title 24 compliance for every project we permit. Reed Calloway has been running ADU builds through the Austin and Travis County permitting system long enough to know which energy calculations the reviewers actually check and which ones they ignore. Call (361) 309-9568 and we’ll tell you exactly what your project needs. If you’re still in the planning stage, start with our ADU Design & Permitting in Austin overview to see how compliance fits into the full build.

When You Need Title 24 Energy Compliance
If any of these apply to your project, you need Title 24 documentation before the city will issue permits:
- You’re building a new detached ADU. Every new residential structure in Austin, including backyard units under 1,000 square feet, must meet current California Energy Code (Title 24 Part 6) standards for insulation, windows, HVAC, lighting, and water heating.
- You’re converting a garage into living space. A garage conversion in neighborhoods like Allandale, Rosedale, or Crestview changes the building’s use classification, which triggers Title 24 requirements for the newly conditioned space.
- You’re adding a room or second story. Any addition that increases conditioned floor area requires an updated Title 24 compliance package showing the new total building envelope meets current standards.
- You’re replacing windows or HVAC as part of a remodel. If you’re swapping out glazing or mechanical systems, the new equipment must be documented through a compliance form even if the rest of the structure is untouched.
- Your previous contractor never filed the CF-2R or CF-3R. We see this a lot in Austin’s older neighborhoods like Hyde Park and Travis Heights, where a homeowner finished a conversion years ago and now can’t sell or refinance because the final Title 24 verification was never recorded.
- You’re installing solar panels alongside your ADU. Solar arrays interact with Title 24’s prescriptive requirements, and the compliance model has to account for on-site generation before the city will release the permit.
If you’re unsure whether your project triggers Title 24, call us. We’ll check your scope against the current code cycle and give you a straight answer in one phone call.
Our Title 24 Energy Compliance Process
Here’s how we handle Title 24 documentation for ADUs and room additions in Austin:
- Project intake and energy audit. We collect your drawings, window schedule, insulation specs, and mechanical equipment list. If you don’t have drawings yet, we can produce a design that meets Title 24 from the first draft, whether you’re building conventional with James Hardie siding or going prefab with an Abodu or Cover unit.
- Compliance modeling. We run your project through approved Title 24 software to determine the most cost-effective combination of insulation levels, window ratings, and HVAC efficiency that will pass. This step often saves homeowners thousands compared to over-building to a prescriptive package they don’t need.
- CF-1R documentation. We generate the Certificate of Compliance (CF-1R) and register it with a certified HERS provider. This document goes in your permit application and proves your design meets code.
- Permit submittal. We submit the full package, including the CF-1R, to the City of Austin. If the reviewer flags anything, we correct and resubmit at no additional charge.
- Field verification and final documentation. After construction, we coordinate the HERS rater’s field verification and record the CF-2R (installation verification) and CF-3R (final verification) so your project is fully closed out and documented for resale or refinance.

Title 24 Energy Compliance Pricing in Austin
Title 24 compliance documentation for an ADU or room addition in Austin typically costs between $600 and $1,400 when handled as part of a full design and permit package. If you’re filing standalone compliance for a completed project that was never documented, expect to pay more because the work has to be reverse-engineered from what’s already installed.
Here’s what affects the price:
- Project size and complexity. A 450-square-foot studio ADU is a simpler compliance model than a 1,200-square-foot two-bedroom unit with multiple HVAC zones and a solar array.
- Documentation quality. If you have a complete window schedule, insulation specs, and mechanical equipment list, our job is straightforward. If we have to track down missing information, the time goes up.
- Compliance pathway. The prescriptive approach (meeting each code requirement individually) is simplest to document. The performance approach (trade-offs between systems) requires more modeling but often saves money on materials.
- HERS rater fees. Field verification by a certified HERS rater typically adds $300 to $600, depending on the project’s location and the number of systems being verified.
- Corrections and resubmittals. If the city rejects a package prepared by someone else, we charge to review it, identify the issues, and file a corrected version.
The price goes in writing before we start. That number is what you pay. No travel fees, no re-modeling surcharges, no surprises at the final invoice. Call (361) 309-9568 for a written quote on your specific project.
What We Check On Every Title 24 Project in Austin
These are the specific energy systems and components our compliance package verifies, and the ones the City of Austin reviewers look at most closely:
- Building envelope insulation. Wall, floor slab, and attic insulation values have to hit code minimums for Austin’s climate zone. We spec the right R-values so you’re not paying for more insulation than the model requires.
- Window U-factor and solar heat gain coefficient (SHGC). Austin’s hot summers mean SHGC matters more here than in coastal California builds. We select glazing that balances code compliance with what’s actually comfortable in a Travis County August.
- HVAC efficiency. Ducted and ductless systems have minimum efficiency ratings under Title 24. We verify the unit you’re installing meets current code before you buy it.
- Lighting. Title 24 requires high-efficacy lighting in kitchens, bathrooms, garages, and outdoor fixtures. We check the counts and make sure the model reflects them.
- Water heating. Tankless systems, heat pump water heaters, and standard tank units all have different compliance implications. We document what’s actually going in.
- Ventilation. Whole-house ventilation requirements under ASHRAE 62.2 are part of Title 24 compliance. If your ADU needs a ventilation fan, the model has to show it.
This is the material our team reviews on every Austin project, whether it’s a detached unit behind a house in Brentwood or a garage conversion in East Austin. We don’t cut corners on the parts of the compliance model the city actually enforces.
Prefab and Modular Units: Title 24 Requirements in Austin
If you’re building a prefab ADU from a manufacturer like Abodu, Cover, or a Tuff Shed-based conversion, the Title 24 path works differently. The factory usually provides a pre-approved compliance package for the standard model, but the site-specific conditions in Austin, including orientation, shading, and foundation type, still require local verification and documentation.
We’ve shepherded prefab units through the Austin permitting process, and we know which manufacturers provide complete Title 24 documentation and which require additional local modeling. A unit that passes factory compliance doesn’t automatically pass City of Austin review if the site conditions change the energy model.
We also work with conventional builds using James Hardie siding and standard framing. In those cases, the compliance package is built from scratch, and we optimize the envelope design to hit Title 24 targets without wasting money on unnecessary upgrades.
Why Fielding ADU Austin Handles Title 24 In-House
Most contractors in Austin outsource Title 24 documentation to a third-party energy consultant. That’s fine when it works. The problem is when the consultant and the builder disagree about what’s getting installed, and the homeowner gets stuck in the middle with a rejected permit application.
We handle Title 24 documentation in-house as part of our ADU Design & Permitting service. That means one point of contact from the first energy model to the final HERS verification. Reed Calloway reviews every compliance package before it goes to the city, because he’s the one who has to answer for it if the reviewer bounces it back.
That’s the same approach we take across every part of the build. A written price before any work starts. A one-year written guarantee on workmanship. Background-checked, uniformed crew on site every day. A live person answering the phone at noon or midnight. We don’t ask you to take any of that on faith, because it’s all in writing.
We operate under The Garrison Standard, which started with the parent organization in 2006 and still means the same thing today: show up in the window, put the price in writing, build it by the book, leave the site clean, and stand behind it for a full year. The home page lays out the full scope, but the short version is this: if the work isn’t done right, we come back and make it right at no charge.
FAQs – Title 24 Energy Compliance
How long does Title 24 compliance take in Austin?
For a typical ADU or room addition, the Title 24 compliance package takes 5 to 10 business days from the time we have your complete drawings and equipment specs. If you need it faster, call (361) 309-9568 and we’ll tell you what’s possible on your timeline.
What happens if my project fails Title 24 inspection?
If a HERS rater or city inspector identifies a compliance failure, we correct the issue and resubmit the documentation. This is where the written guarantee matters: if the failure is due to our workmanship, we fix it at no charge. If it’s a material substitution made without our knowledge, we’ll document the as-built condition and file an updated compliance package at a fair documented rate.
Do I need Title 24 compliance for a garage conversion or just new ADUs?
Yes, garage conversions in Austin require Title 24 documentation because you’re converting unconditioned space into conditioned living space. The code treats the conversion as a change of use, and the newly conditioned area has to meet current energy standards for insulation, windows, mechanical systems, and lighting.
Can you fix Title 24 paperwork that another contractor never filed?
Yes. We regularly take on projects in Austin where a previous contractor completed construction but never filed the CF-2R or CF-3R. We inspect the as-built conditions, generate the missing documentation, and file it with the appropriate HERS provider. This is common in older neighborhoods where homeowners discover the gap when they’re trying to sell or refinance. Call (361) 309-9568 for an assessment of what’s missing.
Is Title 24 the same as a city energy code or a HERS rating?
No. Title 24 Part 6 is the California Energy Code, which is the energy efficiency standard Austin enforces when issuing residential building permits. A HERS rating is the verification system that confirms the installed work matches the Title 24 compliance model, done by a certified HERS rater.
How much does Title 24 compliance cost on top of a permit?
Title 24 documentation typically adds $600 to $1,400 to a standard ADU permit package in Austin, plus $300 to $600 for HERS rater verification. Permit fees themselves are paid to the City of Austin separately. If you’re getting a quote from us for a full design and permit package, the Title 24 cost is already included in the written price.
Get Your Title 24 Compliance Package Started
If you’re planning an ADU, garage conversion, or room addition in Austin, don’t wait until the city rejects your permit application to get the energy compliance right. Call (361) 309-9568 today and we’ll tell you what your project needs, what it costs, and when we can start. The conversation takes ten minutes. The estimate is free. And the price we quote is the price you’ll pay, in writing, before any work begins.
Written by Reed Calloway, Owner at Fielding ADU Austin, serving Austin.


