Riverside County · Climate Zone 15

Title 24 reports in Palm Springs.

CF1R and NRCC energy compliance for Palm Springs projects: new homes, ADUs, additions, remodels and commercial work. From $200, back in two business days, with plan-check corrections included.

Architectural illustration of a modern California home in Climate Zone 15, Low Desert
Palm Springs · Zone 15Low Desert · Cooling-driven design
15
Climate zone
Palm Springs
CEC reference city
Cooling
Design driver
2
Business-day turnaround
What the zone means here

Palm Springs is in Climate Zone 15, Low Desert

The hardest cooling climate in California. Every square foot of west-facing glass costs you.

Where Palm Springs projects usually lose margin: The toughest zone to pass. Expect a performance run, low-SHGC glazing, and ducts in conditioned space.

Every compliance run for a Palm Springs project uses the CEC weather file for Palm Springs, the reference station for Zone 15. That file, not the address, is what the energy budget is calculated against, which is why getting the zone right matters more than anything else about location.

Read Zone 15 in full →
Typical Palm Springs scope
A

ADUs and conversions

From $200. Most are exempt from the solar PV requirement; envelope and equipment rules still apply in full.

B

Additions and remodels

From $300. Modelled as two zones, existing and addition, so the new floor area is judged on its own standard.

C

New homes

From $300, including solar PV and battery sizing to the 2025 code.

D

Commercial & TI

Quoted on a call. NRCC envelope, mechanical and lighting plus the performance run.

Confirm it yourself

Palm Springs climate zone lookup

Pre-set to Zone 15. Enter any other Palm Springs-area ZIP to check a specific address.

California building climate zones 11121216341351496108157

Schematic: nodes are placed for legibility, not survey accuracy. Zone boundaries follow ZIP code lines.

Climate Zone

Enter a city or ZIP code, or click any numbered node on the map, and we'll tell you the zone, what drives the design there, and where projects usually lose margin.

Zone assignment is set by the California Energy Commission and follows ZIP code boundaries. A handful of cities straddle two zones. If yours is one of them we will confirm it from the address for free.

Questions

Title 24 in Palm Springs

How much does a Title 24 report cost in Palm Springs?

The same published rates as everywhere else in California: from $200 for an ADU or garage conversion, and $300 for an addition or remodel. Commercial NRCC work and multifamily are quoted on a call. Palm Springs projects are not priced differently. The calculator on this site gives you the exact number.

Which climate zone is Palm Springs in?

Palm Springs sits in California Climate Zone 15, Low Desert. The compliance model runs against the CEC weather file for Palm Springs, and design is driven mainly by cooling.

Zone assignment follows ZIP code boundaries, so a large city can span more than one zone. Send us the project address and we'll confirm it free.

Do you work with Palm Springs building departments?

Yes. Reports are produced to the state standard, which is what every California jurisdiction plan-checks against, and the forms sheet is sized to drop straight into your plan set. If Palm Springs plan check comes back with a comment on the energy documents, the correction is included at no charge.

Also serving

All 58 California counties and all 16 climate zones. See the full list.

A low desert house clad in vertical timber battens with curved roof planes, rooftop solar panels and Joshua trees under a pale sky
Palm Springs · Riverside CountyClimate Zone 15 · Low Desert
Ready when you are

Have a Palm Springs project? Send the plans.

Fixed price and a delivery date the same day, then signed forms in five business days.

Or call (909) 914-0305 and you'll get the engineer, not a receptionist.