Your section's MUD, the LID and the city
Sienna has no single tax rate. Sections on HAR's tax tables pay Fort Bend County ($0.412 per $100, 2025), the drainage district ($0.01), Fort Bend ISD ($1.0569, 2025) and Sienna Parks and LID ($0.4125, 2025). Then the section's MUD is added: the developer lists MUDs 3, 4, 6, 7, 10 and 12 and a no-MUD section called the Woods, and FBCAD's 2024 table shows rates from $0.4075 to $1.05. HAR's tables show Shipman's Landing, Waters Lake and Sienna Acreage Estates also paying Missouri City ($0.570825, 2025). If the proposed Sienna MUD No. 3 annexation is approved, city taxes would start there in fall 2027. School districts exempt $140,000 of a homestead's value, and the seller's bill is not yours.
- The MUD number and any city levy are on the FBCAD account.
- Ask whether the MUD has new bonds authorized but not yet sold.
Before you make an offer: Pull the FBCAD account for the exact lot and total every unit's adopted rate before you compare Sienna homes.
Sources and tools: Fort Bend Central Appraisal District, Fort Bend County tax rates by unit, Sienna HOA and MUD list, Missouri City: Sienna MUD No. 3 annexation, Estimate your monthly ownership cost
