Sienna Annexation Goes Before Residents at a Missouri City Town Hall Tonight, With the City's Own Estimate at $88.54 More a Month for a Typical Household
Missouri City's proposal to annex 1,229 acres of Sienna - about 7,365 residents in MUD No. 3 - gets its public airing at 7 p.m. tonight. The city's planning comparison puts the potential combined cost increase at $1,062.48 a year for a representative household.

Some Sienna residents could pay more in taxes and fees and receive different police services under a proposal to bring their neighborhood into Missouri City - and tonight they get to put questions to the city directly. An informational town hall is scheduled for Tuesday, October 27, at 7 p.m. at Divine Savior Academy Sienna, 770 Waters Lake Boulevard, where residents can visit departmental booths, hear a presentation from city leadership and submit questions electronically or on written cards for a moderated question-and-answer session, FOX 26 Houston reported. The proposed annexation covers approximately 1,229 acres within Sienna Municipal Utility District No. 3, home to an estimated 7,365 residents. It applies only to that district - not the entire Sienna community - and includes portions of neighborhoods around Waters Lake Boulevard and Scanlan Trace, including sections of Waters Lake and Shipman's Landing.
The city's own numbers are the part residents will be reading most closely. Missouri City provided a planning comparison showing a potential combined increase of $88.54 per month, or $1,062.48 annually, for a representative household - an example that assumes a home valued at $513,422 before exemptions and monthly water usage of 10,000 gallons. The comparison uses the city's FY2028 planning tax rate, not a final adopted rate, and covers only the MUD/City portion of property taxes. Garbage collection is currently understood to be funded through MUD property taxes rather than billed separately; after annexation, garbage charges would appear on utility bills, and the existing $28.50 monthly fire protection fee would be eliminated. The city said its analysis identified no negative overall fiscal impact on the municipal government - a finding it notes is separate from the potential increase in individual household costs. Annexation would not add city property taxes to 2026 tax bills; city property taxes would first apply in fall 2027.
The service change with the sharpest edge is policing: the Missouri City Police Department would take responsibility for patrols, calls for service and criminal investigations on the annexation's effective date, with two additional officers planned in fiscal year 2027 and three more officers and a sergeant in fiscal year 2028, operating from Fire Station No. 5. Missouri City Fire & Rescue already serves the area and would continue, and Fort Bend County EMS would continue ambulance transport. City officials say the proposal follows a Strategic Partnership Agreement signed with Sienna MUD No. 3 in 2001. "This has been contemplated for more than two decades and is not a newly initiated proposal," the city said, and Interim City Manager Allen Bogard recommended proceeding at the October 5 City Council meeting. Two formal public hearings are scheduled in City Council Chambers at 1522 Texas Parkway, with City Council consideration and the proposed effective date tentatively scheduled for December 7, 2026. The annexation remains subject to council approval.



