Allen leaders map growth plan, infrastructure reinvestment at State of City

Allen leaders used the city’s State of the City stage at the Allen Public Library to make a blunt case for what comes next: growth will continue, but the city says it has to pay first for the places residents already use every day.

The discussion on May 21 centered on two pressures that now define Allen’s planning. City officials highlighted more than $10 million in infrastructure improvements approved in recent council meetings for older parts of town, including work tied to the Oak Hill neighborhood, the Greengate neighborhood and two lift stations. That spending, paired with new development, reflects how Allen has shifted from a fast-growing suburb to a mature city that must maintain streets, utilities, libraries and neighborhood amenities already in place.

Allen’s population was estimated at 113,447 on July 1, 2025, up from the Census Bureau’s 2020 base of 104,655, and council unanimously approved an updated 2045 Comprehensive Plan on April 29, 2025 to map out how the city will grow over the next 15 to 20 years. The plan gives the city a framework for managing where development goes, how much infrastructure it will require and how Allen can keep growth from overwhelming existing neighborhoods.

The library itself was used as an example of that philosophy. The Allen Public Library reopened Dec. 8, 2025 after a $19.9 million renovation and expansion that added 18,000 square feet. During construction, library services were temporarily housed at the former Rountree Elementary School campus from September 2024 to September 2025. In remarks at the reopening, Mayor Baine Brooks called the library “the heartbeat of the city.”

On the other side of the ledger, officials pointed to the SH 121 corridor as the clearest sign that Allen’s tax base is still expanding. Sloan Corners, a nearly 500-acre mixed-use project at US-75 and SH 121, is expected to add more than $2 billion to the city’s tax base and support 30,000 new jobs once fully built out. Allen City Council approved an economic development incentive agreement for the project on Jan. 28, 2026.

City leaders also highlighted future projects including High Five entertainment, the Katy Trail Ice House, the next phases of Sloan Corners and downtown revitalization efforts in Downtown Allen. That downtown work is being advanced through the Allen Economic Development Corporation, Allen Community Development Corporation, City Council, the Downtown Design Review Board and the downtown TIF district.

The message from the library event was straightforward: Allen wants the jobs, the tax base and the new investment. The harder task is making sure the roads, utilities and neighborhoods can absorb the growth without losing the character that brought people there in the first place.