Katy vs Richmond
How do stormwater management rules compare between Katy, TX and Richmond, TX?
Katy and Richmond have similar restriction levels.
Katy, TX
Fort Bend County
Katy requires a stormwater pollution prevention plan and TPDES coverage for any construction site disturbing one or more acres, including post-construction BMPs maintained by the property owner.
View full Katy rules →Richmond, TX
Fort Bend County
Richmond's UDC and Public Infrastructure Design Manual require new and redeveloped sites to provide stormwater detention and drainage improvements meeting city design standards before approval.
View full Richmond rules →Key Facts Comparison
| Fact | Katy | Richmond |
|---|---|---|
| Threshold | 1 acre disturbed | - |
| Required permit | TPDES TXR150000 | - |
| Plan | SWPPP plus post-construction | Drainage plan required |
| Maintenance | Owner responsibility | - |
| Contact | Stormwater 281-391-4876 | - |
| Manual Section | - | PIDM 7.7 Detention |
| Standard | - | No-net-increase runoff |
| Reviewer | - | Public Works |
Highlighted rows indicate differences between cities.
Katy FAQ
Does my single-lot home build need a SWPPP?
Only if it disturbs at least one acre or is part of a larger common plan of development. Smaller standalone lots typically don't trigger TPDES coverage in Katy.
Who maintains BMPs after construction?
The property owner is solely responsible for the operation and maintenance of structural and non-structural BMPs installed on their site, per Katy's stormwater article.
What if my project crosses the one-acre threshold mid-build?
You must stop, prepare and obtain SWPPP approval, and file TPDES coverage before continuing. Operating without coverage is a city and state violation.
Richmond FAQ
Does my Richmond project need stormwater detention?
Most new development and significant redevelopment in Richmond must provide on-site stormwater detention so post-development runoff does not exceed pre-development rates, per Section 7.7 of the design manual.
Who reviews stormwater plans in Richmond?
The Public Works Department, in coordination with Planning and Zoning, reviews drainage and detention designs as part of site development plan approval under the Unified Development Code.
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