New Braunfels building permit framework — 2021 ICC
New Braunfels Building Safety administers permits under the 2021 ICC (effective October 23, 2023) and 2020 NEC. All permits through online portal at newbraunfels.gov/permitportal. Inspections: portal only (no email). NBU provides electric (majority of city); CenterPoint Energy provides gas to many but NOT all areas — verify availability at 830-643-6937. Texas TDLR for all trade contractors. Phone: 830-221-4000.
Zone 2A: hot summers (90°F+, May–September), ~34 inches rain annually, no frost depth, slab-on-grade dominant, Hill Country limestone geology. SHGC ≤ 0.25 (windows), R-38 minimum attic, cooling-dominated energy requirements.
One of America's fastest-growing cities: Hill Country lifestyle, Comal/Guadalupe River access, German heritage, between San Antonio and Austin on I-35. Large short-term rental market. CenterPoint Energy provides gas in many but not all areas — propane common in outer areas. 2021 ICC + 2020 NEC effective October 23, 2023.
Window replacement permit rules — Zone 2A SHGC requirements
Window replacement in New Braunfels is governed by the 2021 IRC, effective October 23, 2023. Most window replacement requires a building permit — strictly in-kind replacement in an unchanged rough opening may qualify as exempt maintenance under 2021 IRC Section R105.2, but confirm with Building Safety at 830-221-4000 before starting. Any rough opening modification always requires a building permit. All permit applications through the online portal at newbraunfels.gov/permitportal.
The 2021 IECC Zone 2A energy requirements for permitted window work in New Braunfels are: maximum U-factor 0.40 and maximum SHGC 0.25. The SHGC 0.25 maximum is the critical Zone 2A requirement. In New Braunfels's Hill Country climate, where summers regularly exceed 95°F and solar intensity is high at 29°N latitude, windows with high SHGC are a major source of cooling energy loss. Low-SHGC spectrally selective windows that allow visible light but block infrared solar heat gain are the standard for Zone 2A window replacement. SHGC 0.20 windows block approximately 80% of solar heat gain compared to clear glass — a significant reduction in cooling load for homes with substantial south- and west-facing window area.
New Braunfels does not require Florida-style product approval or California Title 24 HERS verification for window replacement. Simply verify that replacement windows are NFRC-rated with SHGC ≤ 0.25 and U-factor ≤ 0.40 on the product label before purchasing. The building inspector verifies NFRC compliance at the permit inspection. This simpler process — no state product database to cross-reference — makes window replacement permitting in New Braunfels more straightforward than in California or Florida markets.
New Braunfels has a significant inventory of older homes (1970s–1990s) with original single-pane aluminum or clear double-pane windows. These older windows have SHGC values of 0.55–0.86 — far above the Zone 2A maximum of 0.25. Replacing them with modern low-SHGC windows (SHGC 0.20) can reduce solar heat gain by 65–75%, meaningfully reducing summer cooling loads and NBU electric bills. For the city's large STR market, lower-SHGC windows also improve guest comfort during hot summer stays — a competitive advantage for STR operators in New Braunfels's active vacation rental market.
| Variable | How it affects your New Braunfels window replacement permit |
|---|---|
| Zone 2A — SHGC 0.25 max, U-factor 0.40 max | Maximum SHGC 0.25 limits solar heat gain in Zone 2A's intense summer sun. U-factor ≤ 0.40. Verify NFRC-rated specs on window product label before purchasing. Same Zone 2A requirement as College Station TX and Sugar Land TX. |
| No product approval database required | No Florida-style product approval or California Title 24 HERS verification. Simply verify NFRC-rated SHGC ≤ 0.25 and U-factor ≤ 0.40 on product label. Building inspector verifies at inspection. Simpler than FL or CA markets. |
| In-kind exemption — confirm with Building Safety | Strictly in-kind replacement in unchanged rough opening may be permit-exempt. Confirm at 830-221-4000 before starting — don't assume exemption without verification. Rough opening changes: always require permit. |
| Bedroom egress requirements | 2021 IRC R310: min 5.7 sq ft net clear opening, 24-in height, 20-in width, 44-in max sill height. Measure before ordering bedroom replacement windows. |
| Online portal — no email inspections | All permits through newbraunfels.gov/permitportal. Inspections scheduled through portal only since August 2024. No email inspection requests accepted. |
| STR market energy upgrade value | Low-SHGC windows improve summer guest comfort at STR properties in New Braunfels's hot climate. Reduced cooling load also lowers NBU electric costs for STR operators. |
What window replacement costs in New Braunfels
Window replacement costs in New Braunfels/Comal County: Vinyl double-pane low-E (Zone 2A SHGC ≤ 0.25): $310–$510 per window installed. Fiberglass double-pane: $520–$820 per window. Whole-house (14 windows, vinyl): $4,340–$7,140. Permit fees: $85–$155. Contact Building Safety at 830-221-4000 for current fee schedule.
What happens if you skip the window replacement permit in New Braunfels
Non-compliant windows with SHGC above 0.25 create ongoing cooling cost increases in Zone 2A's long hot season. Texas seller disclosure laws apply to known defects. Building Safety enforces permit requirements. STR operators with non-compliant windows face ongoing energy costs and guest comfort issues.
What SHGC is required for windows in New Braunfels?
2021 IECC Zone 2A: maximum SHGC 0.25 — limits solar heat gain that drives cooling costs in Zone 2A's intense summer sun. Verify NFRC-rated SHGC ≤ 0.25 on window product label before purchasing.
Does window replacement in New Braunfels require a permit?
Most window replacement requires a permit. Strictly in-kind replacement in unchanged rough opening may be exempt — confirm with Building Safety at 830-221-4000 before starting. Rough opening modifications always require a permit.
What are the bedroom egress requirements in New Braunfels?
2021 IRC Section R310: minimum 5.7 sq ft net clear opening; 24-inch minimum clear height; 20-inch minimum clear width; 44-inch maximum sill height. Measure before ordering any bedroom replacement windows.
How much can low-SHGC windows save on NBU electric bills in New Braunfels?
Upgrading from original single-pane aluminum windows (SHGC ~0.85) to SHGC 0.20 double-pane reduces solar heat gain by ~77%. On a New Braunfels home with significant south/west window exposure, annual cooling savings at NBU electric rates can reach $300–$500. Payback period: typically 10–16 years for energy savings alone.
Does New Braunfels require Florida product approval or California HERS for windows?
No — neither Florida product approval nor California Title 24 HERS verification is required. Simply verify NFRC-rated SHGC ≤ 0.25 and U-factor ≤ 0.40 on the product data sheet before purchasing. Building inspector verifies at the permit inspection.
How do I apply for a window replacement permit in New Braunfels?
Through the online permit portal at newbraunfels.gov/permitportal only. No paper or email applications. Schedule inspections through the portal as well — no email inspection requests accepted since August 2024. Contact Building Safety at 830-221-4000 for guidance.
New Braunfels Building Safety Division — contact and process
Building Safety: 550 Landa St., 830-221-4000. Online portal at newbraunfels.gov/permitportal only. Inspections: portal only (since August 2024). Residential review: ~10 business days. TDLR at tdlr.texas.gov. NBU electric: nbutexas.com. CenterPoint Energy gas: 830-643-6937 (verify availability at your address). Call 811 before digging. Owner-builder allowed on homestead not intended for sale within 12 months. New Braunfels's extraordinary growth — one of the fastest-growing US cities — has created an active permitting environment with experienced Building Safety staff well-versed in guiding both homeowners and contractors through the 2021 ICC permit requirements. Contact Building Safety at 830-221-4000 for guidance on any project before submitting permits.
New Braunfels Building Safety can be reached at 830-221-4000 for all permit-related questions. All permit applications are submitted through the online portal at newbraunfels.gov/permitportal, which is available 24/7. Inspection requests must also be scheduled through the portal — the Building Safety Division no longer accepts emailed inspection requests as of August 19, 2024. Residential permit review takes approximately 10 business days for first response on complete applications. Texas TDLR contractor licenses are verified at tdlr.texas.gov. New Braunfels Utilities (NBU) provides electric, water, and sewer service for the majority of the city — contact nbutexas.com for service questions. CenterPoint Energy provides natural gas to many but not all parts of New Braunfels (830-643-6937); verify gas availability at your specific address before planning any gas-dependent project. Call 811 at least 48 hours before any ground-penetrating work in New Braunfels for utility safety clearance. The 2021 ICC codes and 2020 NEC, effective October 23, 2023, represent New Braunfels's current construction standards.
Permit portal: newbraunfels.gov/permitportal | Plan review: ProjectDox
Inspections: online portal only (no email) | New Braunfels Utilities (NBU): nbutexas.com
CenterPoint Energy gas (most areas — verify): 830-643-6937 | TDLR: tdlr.texas.gov
New Braunfels in the context of Texas and this guide
New Braunfels occupies a distinctive position among the Texas cities in this guide series. College Station TX adopted the 2024 ICC effective January 1, 2026 — one code cycle ahead of New Braunfels's 2021 ICC (effective October 23, 2023). Sugar Land TX also adopted the 2024 ICC effective January 21, 2026. New Braunfels's 2021 ICC adoption represents solid current-code compliance for a rapidly growing Texas city — well above the 2018 ICC still used by some Texas jurisdictions. The 2020 NEC adopted alongside the 2021 ICC is two editions behind the 2023 NEC used by Sugar Land and College Station, but more current than the 2017 NEC found in many Texas communities.
The most distinctive features of the New Braunfels permit environment relative to other Texas cities in this guide are: the explicit cosmetic work exemption list (which the city publishes on its website); the gas service availability variable (CenterPoint Energy does not serve all of New Braunfels — propane and all-electric systems are common in outer areas); and the NBU municipal utility structure (city-owned electric utility providing solar net metering integration). The online permit portal at newbraunfels.gov/permitportal and the ProjectDox plan review software reflect the city's investment in efficient digital permitting — appropriate for one of the nation's fastest-growing cities. The online-only inspection request requirement (since August 2024) eliminates the email-based backlog that previously created inspection scheduling delays. All of these features combine to make New Braunfels's Building Safety Division a responsive and well-organized permitting authority for the city's extraordinarily active construction market. Contact Building Safety at 830-221-4000 for specific guidance on any permit requirement, required documentation, or current review timelines before submitting any application through the online portal.
The Building Safety Division at New Braunfels City Hall (550 Landa St., 830-221-4000) is staffed with experienced plans examiners and building inspectors with years of trade experience and code training. The division's strong service orientation — reflected in its comprehensive FAQ page, explicit cosmetic exemption lists, and owner-builder guidance — reflects the city's commitment to making the permitting process accessible to New Braunfels homeowners and contractors alike. Residential permit applications submitted through the online portal at newbraunfels.gov/permitportal typically receive a first response within approximately 10 business days. The ProjectDox plan review system allows online upload and coordination of plans and documents throughout the review process. Inspection requests are scheduled through the same online portal — no emailed inspection requests have been accepted since August 19, 2024. Texas TDLR contractor licensing is verified at tdlr.texas.gov. New Braunfels Utilities (NBU) provides electric, water, and sewer service to the majority of the city at nbutexas.com. CenterPoint Energy provides natural gas at 830-643-6937, but gas service is not available at all New Braunfels addresses — confirm gas availability before designing any gas-dependent construction scope. Call 811 at least 48 hours before any ground-penetrating work throughout New Braunfels for utility safety clearance.