Allen City Hall (1st Floor), 305 Century Parkway, Allen, TX 75013
Phone: (214) 509-4130 · Email: bpplanreview@allentx.gov
CSS Portal: cityofallen.org/permits →
Allen TX solar permit rules — the basics and HOA solar rights
Solar PV installations in Allen require a building permit (racking attachment) and an electrical permit (inverter interconnection), both through the CSS portal at cityofallen.org. All permits submitted electronically. Phone: (214) 509-4130. Texas TDLR-licensed Master Electricians hold electrical permits. City-registered contractors for the building permit scope. Homeowner's Affidavit option available for DIY.
Texas solar HOA rights are important for Allen homeowners in HOA communities. Texas Property Code Section 202.010 prohibits HOAs from outright banning solar panel installations. HOAs may regulate the installation for aesthetic purposes (location, placement to minimize street visibility) but cannot prohibit a solar installation entirely. This is a meaningful protection in Allen's high-HOA environment — your HOA cannot refuse solar, but it can require design accommodations.
After city inspections pass, the solar installer submits Oncor Electric Delivery's interconnection application (as the TDU for ERCOT North Texas). Your chosen Retail Electric Provider (REP) then handles billing credits for exported power. Verify current Oncor interconnection requirements and your REP's solar billing terms before finalizing system design.
Texas Property Code Section 11.27 provides a 100% property tax exemption for the added value of solar energy devices. This applies to Collin County (Allen) property tax assessment. Texas has no state income tax, so there is no state solar income tax credit. The federal ITC is the primary tax incentive.
| Variable | How it affects your Allen solar permit |
|---|---|
| CSS portal: all permits electronic | Building permit (racking) + electrical permit (inverter) through CSS at cityofallen.org. Homeowner's Affidavit option for DIY. |
| Texas HOA solar rights (Prop Code 202.010) | HOAs cannot prohibit solar in Texas. HOAs may regulate placement/appearance (minimize street visibility). Install proceeds even over HOA aesthetic objections. |
| Oncor TDU interconnection | Oncor Electric Delivery (not CenterPoint) is the TDU for Allen in ERCOT North Texas. Submit interconnection application to Oncor after city inspections. REP handles billing credits. |
| Texas property tax exemption (Prop Code 11.27) | Solar added value exempt from Collin County property assessment. Apply through Collin County CAD after installation. |
| ~5,200–5,500 kWh/kW production | North Texas (inland DFW) solar production: excellent. High clear-sky days and strong irradiance. Better than coastal Texas markets. |
What solar costs in Allen
Installed: approximately $2.60–$3.40 per watt before incentives. 7 kW system: $18,200–$23,800. Texas property tax exemption applies. Federal ITC when applicable. Contact (214) 509-4130 for permit fee.
Common questions about Allen TX solar permits
How do I apply for a solar permit in Allen TX?
CSS portal at cityofallen.org. All permits submitted electronically. Phone: (214) 509-4130. Building permit (racking) + electrical permit (inverter). Texas TDLR-licensed electrician or Homeowner's Affidavit for DIY.
Can my Allen HOA block solar panel installation?
No. Texas Property Code Section 202.010 prohibits HOAs from refusing to allow solar panel installations. HOAs may regulate the installation to address aesthetic concerns — for example, requiring panels to be placed where they are less visible from the street — but they cannot prohibit the installation altogether. This protection applies to all Texas HOA communities, including those in Allen.
Does Texas have a solar property tax exemption for Allen homeowners?
Yes. Texas Property Code Section 11.27 provides a 100% exemption on the added assessed value of solar energy devices installed on residential property. This applies to Collin County (Allen) property tax assessment. Apply through the Collin County Central Appraisal District after installation.
How does solar interconnection work in Allen TX?
Oncor Electric Delivery is the TDU (Transmission & Distribution Utility) for Allen in ERCOT North Texas. After city CSS inspections pass, submit Oncor's interconnection application. Oncor provides Permission to Operate (PTO) after reviewing the interconnection. Your chosen Retail Electric Provider (REP) then handles billing credits for exported solar power under net metering or a solar buyback plan.
What is Allen TX's annual solar production estimate?
Approximately 5,200–5,500 kWh per kW of installed DC capacity annually per NREL PVWatts for North Texas. DFW's inland location provides excellent clear-sky irradiance. This is better than coastal Texas (more cloud cover) and comparable to other top production markets in the southern US.
Oncor Electric and Texas ERCOT in Allen TX
Understanding Allen's electricity infrastructure requires understanding Texas's deregulated ERCOT market. Oncor Electric Delivery is the Transmission & Distribution Utility (TDU) for the Dallas-Fort Worth area, including Allen. Oncor owns and operates the poles, wires, transformers, and meters in Allen. A separate Retail Electric Provider (REP), chosen by the homeowner from the competitive ERCOT market, handles billing and retail service. For all construction-related permit and service work — panel upgrades, meter disconnects, service entrance changes, solar interconnection — coordinate with Oncor, not your REP. This is exactly the ERCOT framework as the Houston area, except Allen uses Oncor rather than CenterPoint as the TDU.
Atmos Energy provides natural gas distribution throughout Allen. Gas line permits, pressure tests, and service modifications coordinate with Atmos Energy. Texas Senate Bill 1202 (effective 2023) provides for third-party review and inspection of home backup power installations in Texas, including Allen. For generator and battery storage installations, contact Allen Building Services at (214) 509-4130 for current SB1202 third-party review guidance.
North Texas post-tension slabs — what every Allen homeowner must know
Post-tension slabs are the dominant foundation type throughout the DFW metroplex, and Allen is no exception. Allen's housing stock — primarily built from the mid-1980s onward during the city's rapid suburban growth — was constructed almost universally on post-tension slab foundations. The North Texas black cotton clay soil is extremely expansive, swelling and shrinking significantly with seasonal moisture changes. Post-tension slabs resist this clay movement better than conventional slabs by using high-strength steel tendons embedded in the concrete and tensioned after curing.
The renovation consequence: there is no below-floor access to plumbing in Allen homes. Every drain pipe runs through or below the concrete slab. When any drain must be relocated, the slab must be saw-cut. Before any slab cutting in Allen, a ground-penetrating radar (GPR) specialist must scan the slab to map post-tension cable locations. The plumber then designs the saw-cut path between cables, never through them. Cutting a PT cable releases the tendon's tension suddenly, causing immediate slab cracking or failure in the affected area — a serious structural event, not a cosmetic issue. The GPR scan ($400–$800) is a mandatory cost that prevents a far more expensive structural repair. Contact the City of Allen Building and Permitting Division at (214) 509-4130 for permit questions related to plumbing work in Allen's PT slab environment.
City of Allen Building & Permitting Division. Texas contractor licensing: tdlr.texas.gov. Contact (214) 509-4130 for current permit fee schedule. HOA approval separate. Not engineering advice.