Sienna Management District
District Consultants
Attorney
Allen Boone Humphries Robinson LLP
3200 Southwest Freeway, Suite 2600, Houston, Texas 77027
(713) 860-6470
Bookkeeper
Municipal Accounts & Consulting, L.P.
1281 Brittmoore Road, Houston, Texas 77043
(713) 366-3034
Engineer
LJA Engineering, Inc.
1904 W. Grand Parkway North, Suite 100, Katy, Texas 77449
(713) 953-5113
Financial Advisor
Baird
700 Milam Street, Suite 1300, Houston, Texas 77002
(832) 871-5295
Landscape Architect
TBG Partners
3050 Post Oak Blvd., Suite 1100, Texas 77401
(713) 439-0027
Operator
Si Environmental, LLC
6420 Reading Road, Rosenberg, Texas 77471
(832) 490-1570
Tax Assessor / Collector
Tax Tech, Inc.
873 Dulles Avenue, Suite A, Stafford, Texas 77477
(281) 499-1223
Website / Communications
Off Cinco
23501 Cinco Ranch Blvd., Suite H120-177, Katy, Texas 77494
Upcoming Meetings
Tuesday, March 17, 2026 at 1:00 PM
Suite 2400, Angelina Room
The Board meets the third Tuesday of each month at the offices of Allen Boone Humphries Robinson LLP, 3200 Southwest Freeway, 24th Floor, Guadalupe Room. Meetings generally begin at 1:00 p.m. and are open to the public.
The Board welcomes and encourages District residents to attend.