Palm Springs • Desert energy code & historic sites
Window Replacement in Palm Springs, CA
Palm Springs has a stricter state energy rule for replacement windows than most of California, plus a historic site system that treats window changes seriously. Here's what the 2025 Title 24 text says, how permits and historic review work, and what we couldn't confirm, with sources.
Last updated . Facts last checked against sources in October 2026.
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Palm Springs specifics
Four things that shape a Palm Springs window project.
A solar heat gain limit for replacement windows
The California Energy Commission's 2025 Title 24 update adds a maximum SHGC of 0.23 for alterations that replace or add fenestration in Climate Zone 15 (§150.2(b)1). Palm Springs is reported to be in Zone 15, so confirm your address with the CEC lookup and ask for each window's NFRC SHGC value.
Glazing-only replacement and permits
A search extract of the city's permit pages says replacing window glazing alone doesn't require a building permit. That covers glass, not frames, so confirm with the Building Department whether a frame or opening change needs a permit. Applications go through the city's online portal.
Class 1 historic sites and districts
A Class 1 historic site is a resource designated by City Council, and contributing structures in a historic district are regulated as Class 1 sites. Alterations need a Certificate of Appropriateness: minor alterations go to the Historic Preservation Officer and major ones to the Historic Site Preservation Board. Modifying windows is a major alteration if it involves 25% or more of the street-facing elevation's lineal footage or more than 50% of other elevations.
No window rebate found
The city's sustainability page lists a Home Energy Assessment rebate of up to $100, which is not a window rebate, and we found no Southern California Edison window rebate for Palm Springs. Palm Springs also offers Mills Act contracts for Class 1 sites.
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$3,000 to $10,000
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Midpoint of published ranges: $6,500
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Code & historic review
What applies to a desert window replacement
The city's pages were blocked, so confirm permit and historic details with the departments directly.
Energy code
The 2025 update covers alterations that replace fenestration, and the state's mandatory U-factor of 0.40 has an exception for fenestration in fire hazard severity zones. The state's 0.30 U-factor figure is a new-construction prescriptive value, not the replacement-window requirement, and we didn't verify whether the fire-zone exception also affects the SHGC rule.
- Ask for the NFRC SHGC for each window before ordering
- Ask your installer to document compliance for Climate Zone 15
- Palm Springs Building Department: (760) 322-8398
Historic sites and Mills Act
If your home is a Class 1 site or a contributing structure in a historic district, a Certificate of Appropriateness is part of any exterior alteration. We found no city rule specifically on replacing mid-century aluminum or steel windows, so ask Planning. Mills Act contracts for Class 1 sites can reduce property taxes in exchange for preservation commitments.
- Ask Planning whether your home is a Class 1 site or in a district
- Ask whether your window changes count as minor or major
- Check the Mills Act program if your home qualifies
What this means for your windows
Practical steps for a Palm Springs window project
Start with our general guide to vetting a window installer.
Shop on SHGC, not just brand
A low SHGC is the performance number the 2025 code names for Zone 15. Ask each quote for the NFRC value, and use our vinyl windows guide to check the rest of the quote.
Decide between glazing-only and full replacement
Glazing-only replacement may avoid a permit, but a full unit may not. See our retrofit vs. full-frame guide for what each approach changes.
Historic owners: plan for review
Changes to windows on historic sites can need Board review. See our vinyl vs. fiberglass guide for how materials differ and compare warranties in our brand comparison.
Pricing varies widely by home, product and installer. For national price ranges see our 2026 window replacement cost breakdown.
FAQ
Palm Springs window replacement questions
What is the Title 24 rule for replacement windows in Palm Springs?
The California Energy Commission's 2025 update sets a maximum SHGC of 0.23 for alterations that replace or add fenestration in Climate Zone 15 (§150.2(b)1). Palm Springs is reported to be in Zone 15, so confirm your address with the CEC lookup and ask your installer for the NFRC value.
Do I need a permit to replace windows in Palm Springs?
A search extract of the city's pages says replacing window glazing alone doesn't need a building permit. That covers glass only, so confirm with the Building Department at (760) 322-8398 whether a frame or opening change needs one.
What if my home is a historic site?
Alterations to Class 1 sites, including contributing structures in historic districts, need a Certificate of Appropriateness. Minor alterations go to the Historic Preservation Officer and major ones to the Historic Site Preservation Board. Modifying windows is major if it involves 25% or more of the street-facing elevation's lineal footage or more than 50% of other elevations.
Does Palm Springs offer a Mills Act program?
Yes. Palm Springs offers Mills Act contracts for Class 1 sites, with possible property tax relief calculated by Riverside County in exchange for maintenance and preservation.
Is there a rebate for windows in Palm Springs?
We found no window rebate. The city lists a Home Energy Assessment rebate of up to $100, and we found no Southern California Edison window rebate for Palm Springs. The federal 25C credit ended for installs after December 31, 2025.
County guide
Sources & last checked October 2026
Codes, permits and incentives change. Confirm with your local building department and installer before you sign.
- California Energy Commission: What's New for 2025, single-family
- California Energy Commission: climate zone tool
- City of Palm Springs: building permits
- City of Palm Springs: Class 1 and Class 2 historic sites
- City of Palm Springs: historic resources and Mills Act
- City of Palm Springs: energy efficiency
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