HOME ADDITION TITLE 24 COMPLIANCE
Addition CF1R Service
CHEERS-registered Title 24 documentation for home additions of any size. $500 flat fee, 2-3 day turnaround.
Get a Free QuoteTitle 24 Compliance for Home Additions
Home additions trigger Title 24 in two ways: the new addition follows new-construction standards, and the existing home may trigger "alterations" rules where you touch envelope, lighting, water heating, or HVAC. Getting the scope right matters — over-applying alterations rules wastes money; under-applying causes plan-check rejections.
New Addition Compliance
The addition itself follows new-construction Title 24 standards: insulation, fenestration U-factor and SHGC, mechanical efficiency, water heating.
Existing-Home Alterations
Where construction touches the existing home (re-roofing, new HVAC ducts, replaced water heater), alterations rules apply. We scope this correctly.
Two-Story Addition Analysis
Two-story additions interact with the existing home's thermal envelope at the new floor-to-existing-roof junction. Specific expertise required.
Lighting & Water Heating Triggers
Existing-home alterations to lighting (LED upgrades) or water heating (replacement) trigger their own Title 24 requirements.
Get the Addition Scope Right
A poorly-scoped addition CF1R either over-complies (wasting your client's money on insulation upgrades that aren't required) or under-complies (causing plan-check rejection and project delays). We get the scope right because we do this every week.
Addition CF1R Pricing
Flat-fee pricing tied to scope. No hourly surprises.
Single-Story Addition
$500 flat fee for single-story additions of any size. Includes new-addition compliance, alterations analysis, CHEERS registration.
Two-Story Addition
$600 flat fee for two-story additions due to additional envelope analysis at the floor-to-roof junction.
Addition + Major Remodel
$700 flat fee when an addition is combined with substantial remodel work in the existing home (kitchen, primary suite, etc.).
How Our CF1R Service Works
A 4-step productized workflow — most projects complete in 2-3 business days from plan upload to delivered CF1R.
Upload Plans
EnergyPro Analysis
CHEERS Registration
Email Delivery
Why Our Addition CF1R Service
Addition CF1Rs require precise scope analysis. Get it right and you save the homeowner thousands; get it wrong and you delay the project.
Correct Alterations Scoping
We know which existing-home components are "altered" and which aren't — saving over-compliance costs while passing plan-check.
Performance Path Optimization
Performance path lets us trade efficiency between addition and existing-home components. We optimize the trade.
Climate-Zone Specific Strategy
A Bay Area Zone 3 addition has different optimal strategies than a Sacramento Zone 12 addition. We tune by zone.
Addition CF1R FAQs
Some videos showcasing our recent work.
What Our Customers Say
Our clients are at the heart of everything we do at 9Builders, and their feedback reflects our dedication to quality and service. From beautiful remodels to innovative new builds, hear how we've transformed their spaces and exceeded their expectations.
Tommy, Yuna, and their entire team were amazing from start to finish. We hired them for a big project that included foundation work, a structural retrofit, replacing the PGE main service line, and installing a new 200-amp panel. It was a pretty major job, and honestly, we couldn't have asked for a better crew to handle it. Everyone was professional, polite, and knew exactly what they were doing. They showed up on time, cleaned up every day, and were super respectful of our space.
I hired 9Builders to work on my backyard and they did an amazing job. They built a nice structure that looks really great and added so much to my yard. The team was friendly and kept everything clean while they worked. The work was done quick and looked really good. Now they're working on the front of my house to add an extension, and I'm impressed how fast they worked. They finished the foundation in just two days...
9Builders transformed our kitchen into a beautiful, functional space. They listened to our ideas, offered great suggestions, and delivered high-quality work. The team was professional and respectful throughout.