The city that skipped zoning. The permitting that never forgives a shortcut.

The absence of a zoning map does not mean the absence of land use control. It means the control is distributed, private, and easy to miss. Roughly a large share of the city sits under active deed restrictions filed with Harris County by neighborhood associations, and where they exist, they govern what you can build. A commercial use can sit legally beside a single-family home in one block and be flatly prohibited in the next, and nothing on a public zoning map will tell you which is which.

That is why JDJ treats deed restriction research as core due diligence in Houston, not a formality at the end. The wrong assumption here is not a delay. It is a project that cannot be built as designed.

Stormwater Detention (Infrastructure Design Manual, Chapter 9)
Detention requirements were sharply increased. Recent guidance moved most sites toward roughly 0.75 acre-feet of detention per acre of disturbed area, a large step up from the prior standard, with simplified flat rates for smaller sites and Harris County Flood Control criteria applying to larger projects. A 2025 supplement to the Infrastructure Design Manual also introduced flexibility, including a de minimis impact credit for small-scale improvements and recognition of prior approved drainage plans for phased developments.

Chapter 33 — Landscaping, Trees, Sidewalks & Preservation
Tree and shrub requirements, the Sidewalk Network Ordinance (including a fee-in-lieu option), and the framework for historic preservation and Conservation Districts, which allow qualifying neighborhoods to protect community character.

Chapter 19 — Floodplain Management

After Hurricane Harvey, Houston strengthened its floodplain rules significantly. New residential construction in the mapped floodplain must be elevated well above the 500-year flood elevation, one of the most demanding standards in the country. Substantial improvements, generally those exceeding fifty percent of a structure's market value, can trigger full flood compliance, and work in the regulatory floodway requires a no-rise demonstration.

Chapter 26 — Off-Street Parking
Parking minimums for most uses, updated alongside the 2023 Chapter 42 amendments to support missing-middle housing types.

Major Thoroughfare and Freeway Plan (MTFP)
A long-range right-of-way plan updated annually on a January-to-September cycle. It affects dedication and setback obligations along designated corridors, so it belongs in early feasibility, not late design.

• Detention rules updated (2025). A supplement to the Infrastructure Design Manual revised stormwater detention requirements, adding a de minimis impact credit and formal recognition of prior approved drainage plans for phased projects, giving qualifying developments a clearer path and helping avoid costly redesigns.
• Permit Activity Reports transitioned (December 2025). The Planning and Development Department stopped supplying links to Public Works permit activity reports. Current permit information now comes through Houston Public Works and the Houston Permitting Center's permit search tools.
• 2026 No Zoning Letter and Boundary Map (January 2026). The City reissued its annual confirmation of no-zoning status and its ETJ boundary map, the baseline document behind Houston's land development framework.
• 2026 Major Thoroughfare and Freeway Plan cycle underway. The annual MTFP amendment process runs January through September, with pre-submittal, application, and public comment windows that can affect right-of-way obligations along designated corridors.