Houston Site Plan – $89 24-Hour Delivery, Built for Chapter 42 and Chapter 19
Houston has no zoning code. That sounds like it should make permitting simpler. It doesn't — it means the rules that determine where your structure can sit come from a different source entirely, and most site plan templates don't know where to look.
The correction letter read: “Building line setback not consistent with Chapter 42 requirements for block size. Floodplain development permit required — property within Special Flood Hazard Area. Finished floor elevation does not reflect 2018 Chapter 19 freeboard requirements.”
Three separate problems, three separate code chapters, and none of them are “zoning” — because Houston doesn’t have any. The contractor’s crew was scheduled. The plan went back into the queue.
Houston is the largest US city without a zoning ordinance. In its place, Chapter 42 of the city code governs setbacks based on block length and lot configuration — not zoning districts. Chapter 19 governs floodplain development, and it changed substantially in 2018: a 2-foot freeboard requirement above the 500-year Base Flood Elevation, and a ban on slab-on-grade construction within the 100-year floodplain. Roughly one in three Houston properties falls within some floodplain designation, which means Chapter 19 isn’t a rare edge case — it’s a routine check.
We draft Houston site plans against Chapter 42’s block-based setback rules and Chapter 19’s current floodplain standards — not a zoning-district template that doesn’t apply here at all.
- Free revisions if Houston Permitting Center returns comments
- 24-hour turnaround for most residential plans
- Fixed price — $89 to $249
Why Houston Is Structurally Different From Every Other City We Cover
No zoning means no zoning districts — setbacks come from Chapter 42, based on your block. In most US cities, setback requirements are a function of which zoning district a parcel falls into. Houston has no zoning districts. Instead, Chapter 42 of the city’s land development ordinance sets setback requirements based on block length and lot configuration. The building line — the front setback — is 25 feet from the front property line for residential lots on blocks longer than 600 feet, and 10 feet for lots on blocks shorter than 600 feet. Side yards are typically 5 feet minimum for single-family structures, or 10% of lot width (with a 5-foot minimum) for larger structures. There’s generally no minimum rear setback for single-family homes under Chapter 42 itself — though deed restrictions frequently impose one. A site plan that pulls setback figures from a generic zoning table doesn’t reflect how Houston actually determines these distances.
Deed restrictions can be more restrictive than the city code — and they’re private, not public. Because Houston has no zoning, many neighborhoods rely on subdivision deed restrictions to control land use, building size, setbacks, and whether ADUs are permitted at all. These restrictions are recorded with the Harris County Clerk and may be enforced by a homeowners association, separate from anything the city checks. A site plan can be fully compliant with Chapter 42 and still violate a deed restriction that the city permitting process doesn’t review. We flag when a property is in a subdivision with recorded deed restrictions so homeowners know to check them — even though enforcing them isn’t part of our drafting scope.
Chapter 19’s 2018 amendments raised the bar significantly — and apply to roughly a third of the city. The City Council’s 2018 revisions to Chapter 19 increased flood protection elevation requirements: new construction and substantial improvements now need 2 feet of freeboard above the 500-year Base Flood Elevation, not just the 100-year BFE. The amendments also expanded compensatory storage requirements for fill placed within the 500-year floodplain — previously this was only required in the 100-year floodplain. And critically, Harris County eliminated slab-on-grade construction within the 100-year floodplain entirely. New buildings in that zone must use pier-and-beam foundations, with open space beneath the structure to let floodwater pass through. A project proposing slab-on-grade in the 100-year floodplain needs a FEMA Letter of Map Revision before a permit application can even be submitted.
A floodplain development permit is a separate permit from the building permit. If a property falls within Houston’s Special Flood Hazard Area, Chapter 19 requires its own floodplain development permit application — submitted with elevation certificates, drainage analysis, and FFE compliance documentation showing the structure meets the 2-foot freeboard standard. This isn’t a box on the building permit form. It’s a parallel application process, and a site plan that doesn’t identify the floodplain status and address Chapter 19’s documentation requirements means the floodplain permit application can’t move forward — which means the building permit can’t either.
What Real Houston Correction Comments Say
“Building line setback does not reflect Chapter 42 requirements for lots on blocks exceeding 600 feet in length. Front setback shown at 10 feet; 25-foot building line required for this block configuration. Resubmit with corrected setback.”
Chapter 42’s setback figures depend on block length, not a zoning table. We determine the applicable block configuration for the specific parcel and apply the correct building line — 25 feet or 10 feet — before the plan is drafted.
“Property located within FEMA Special Flood Hazard Area per current FIRM. Floodplain development permit required under Chapter 19, separate from building permit application. Elevation certificate and finished floor elevation documentation not provided.”
We check FEMA flood maps for every Houston parcel and identify Special Flood Hazard Area status. When it applies, the site plan reflects the floodplain development permit requirement and includes the FFE documentation Chapter 19 requires.
“Finished floor elevation shown does not include 2-foot freeboard above 500-year Base Flood Elevation per 2018 Chapter 19 amendments. Revise FFE and resubmit.”
We calculate FFE against the post-2018 standard — 2 feet above the 500-year BFE, not the 100-year BFE that older guidance referenced.
“Proposed construction within 100-year floodplain shown as slab-on-grade foundation. Slab-on-grade prohibited within 100-year floodplain per Harris County requirements. Pier-and-beam foundation required, or FEMA Letter of Map Revision must be obtained prior to permit submission.”
For parcels in the 100-year floodplain, we flag the foundation type requirement before the plan is finalized — pier-and-beam construction, or the LOMR process if slab-on-grade is the intent.
“Side yard setback shown at 3 feet. Chapter 42 requires 5-foot minimum side yard for single-family structures. Resubmit with corrected dimension.”
We apply Chapter 42’s side yard minimums — 5 feet for single-family, or 10% of lot width for larger structures — rather than figures from a zoning-based template.
“Tree and shrub requirements per Chapter 33 not addressed for proposed development.”
Where Chapter 33 landscaping requirements apply, we add the required notation — relevant primarily for larger residential and multi-family projects.
What Every Houston Site Plan We Deliver Includes
| Element | Why It Matters in Houston’s No-Zoning Framework |
|---|---|
| Property lines from Harris County Appraisal District records | HCAD account number referenced; legal dimensions, not GIS approximations |
| Building line setback per Chapter 42 block configuration | 25 ft for blocks over 600 ft, 10 ft for blocks under 600 ft — determined from the specific block, not a zoning table |
| Side yard setbacks per Chapter 42 | 5 ft minimum for single-family, or 10% of lot width for larger structures |
| Fire separation notation | 5-foot minimum between buildings on the same lot and adjacent lots per Fire Code |
| Floodplain designation from current FIRM | 100-year and 500-year floodplain boundaries identified; Special Flood Hazard Area status flagged |
| Finished floor elevation per post-2018 Chapter 19 standard | 2-foot freeboard above 500-year BFE calculated and shown |
| Foundation type notation for floodplain parcels | Pier-and-beam requirement flagged for 100-year floodplain properties; slab-on-grade flagged as requiring LOMR |
| Deed restriction notation (where applicable) | Subdivisions with recorded deed restrictions flagged for homeowner awareness — not enforced by us, but relevant to project feasibility |
| Drainage and grading per Chapter 19 | Flow direction and compensatory storage notation for fill within floodplain boundaries |
| Parking per Chapter 26 | Required parking shown where applicable |
| North arrow, engineering scale, legal description | Required on every sheet |
Real Houston Case Study — Pearland Garage Addition, Floodplain and Setback Errors Compounded
Project: Detached garage addition, Pearland (Harris County)
What the homeowner submitted: A basic site plan showing property lines and the proposed garage footprint, with setback dimensions pulled from a generic residential template assuming zoning-based setback rules.
What came back:
- “Building line setback does not reflect Chapter 42 building line requirements for this block. Front setback shown does not match required 25-foot building line for lots on blocks exceeding 600 feet.”
- “Property located within FEMA Zone AE per current FIRM. Floodplain development permit required. Existing impervious surface plus proposed garage requires compensatory storage calculation per Chapter 19.”
- “Finished floor elevation not addressed. Property within 100-year floodplain — pier-and-beam foundation required unless FEMA Letter of Map Revision obtained.”
What the homeowner lost: Five weeks waiting for a surveyor to provide elevation certificate data and determine whether a LOMR was feasible for the slab-on-grade design the contractor had already planned.
What we did when the homeowner came to us: Verified the block configuration and applied the correct 25-foot building line per Chapter 42. Confirmed the parcel’s location in FEMA Zone AE within the 100-year floodplain. Calculated finished floor elevation at 2 feet above the 500-year BFE per the post-2018 Chapter 19 standard. Flagged the foundation requirement — since a LOMR wasn’t feasible for this parcel’s elevation profile, the plan was revised to show pier-and-beam foundation, which the homeowner then coordinated with their contractor before resubmission. Added the compensatory storage calculation for the proposed impervious surface increase within the floodplain boundary.
Outcome: The revised site plan, submitted alongside the floodplain development permit application with elevation documentation, cleared review on the next cycle. The foundation change added cost to the project, but it was identified before construction began rather than after a failed inspection.
Houston's Permit Process — Two Applications, Not One, for Floodplain Properties
For roughly two-thirds of Houston properties — those outside any FEMA floodplain designation — the permit process is a single building permit application reviewed against Chapter 42 setbacks, Chapter 26 parking, and Chapter 33 landscaping where applicable.
For the remaining third — properties within a Special Flood Hazard Area — there’s a second, parallel process: the Chapter 19 floodplain development permit. This requires its own submission package: elevation certificates, structural plans demonstrating finished floor elevation compliance, drainage analysis, and — where fill is proposed within the floodplain — mitigation design showing compensatory storage.
These two processes don’t run in isolation. The Development Services Division reviews the floodplain development permit application against Chapter 19 standards, and that approval is generally required before the building permit can be issued for floodplain-affected work.
A site plan that doesn’t identify floodplain status at the outset means a homeowner discovers the second application exists only after the first one stalls — which is exactly the five-week gap in the Pearland case study above.
Pricing
| Service | Price |
|---|---|
| Basic Site Plan — property lines, Chapter 42 setbacks, existing/proposed structures, north arrow, scale | $89 |
| Enhanced Plan — adds floodplain designation, impervious surface calculation, easements, utility locations | $159 |
| Premium Plan — adds full Chapter 19 floodplain development permit documentation, FFE calculation with freeboard, foundation type analysis, compensatory storage calculation | $249+ |
✅ Free revisions if Houston Permitting Center returns comments
✅ 24-hour turnaround for most residential plans outside the floodplain
✅ No survey required for most projects — we use HCAD records and FEMA FIRM data
✅ Floodplain development permit documentation included for qualifying parcels
FAQs — Houston Site Plans
Setback requirements in Houston come from Chapter 42 of the city’s land development ordinance, which bases the building line (front setback) on block length — 25 feet for lots on blocks over 600 feet, 10 feet for shorter blocks — and side yard minimums on lot configuration, typically 5 feet for single-family structures. There’s generally no minimum rear setback under Chapter 42 itself for single-family homes, though subdivision deed restrictions may impose one. We determine the applicable Chapter 42 standards for your specific block before drafting.
No. Deed restrictions are private covenants recorded with the Harris County Clerk, typically enforced by a homeowners association or through civil action between property owners — not by the city’s permitting process. A project can be fully compliant with Chapter 42 and still violate a deed restriction. We flag when a property is in a deed-restricted subdivision so you’re aware, but verifying and complying with the specific restriction’s terms is outside our drafting scope.
We check current FEMA Flood Insurance Rate Maps (FIRMs) for every Houston parcel as part of the drafting process. Approximately one in three Houston properties falls within some floodplain designation. If your property is in a Special Flood Hazard Area, the site plan reflects that status and includes the documentation Chapter 19 requires for the separate floodplain development permit application.
The City Council’s 2018 amendments increased the freeboard requirement to 2 feet above the 500-year Base Flood Elevation (previously based on the 100-year BFE with a lower freeboard), expanded compensatory storage requirements to cover fill placed in the 500-year floodplain (previously only the 100-year floodplain triggered this), and — through related Harris County requirements — eliminated slab-on-grade foundations within the 100-year floodplain in favor of pier-and-beam construction. We calculate against the current post-2018 standard for every floodplain-affected parcel.
Slab-on-grade is prohibited within the 100-year floodplain under current Harris County requirements — pier-and-beam foundation is required instead, unless a FEMA Letter of Map Revision (LOMR) can be obtained to remove the parcel from the floodplain designation. A LOMR is a separate process with FEMA, not something resolved at the site plan stage. We flag this requirement before the plan is finalized so the foundation type can be coordinated with your contractor before construction documents are completed — not after.
If your property is within a Special Flood Hazard Area per the current FIRM, yes — Chapter 19 requires a floodplain development permit as a separate application from the building permit, with its own elevation certificate and drainage documentation requirements. For properties outside any floodplain designation, only the standard building permit applies. We identify which category your property falls into and draft accordingly.
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Project Types We Cover
Official Houston Permit Resources
- Houston Permitting Center — 1002 Washington Avenue, Houston, TX 77002. Apply online through the iPermits portal.
- City of Houston Planning and Development Department — Chapter 42 land development regulations, no-zoning framework: houstontx.gov/planning
- Houston Code of Ordinances, Chapter 19 (Floodplain) — Floodplain development permit requirements, freeboard standards, foundation requirements: available via Municode
- Houston Code of Ordinances, Chapter 42 — Building line and setback requirements based on block configuration
- Harris County Appraisal District (HCAD) — Parcel records, block and lot configuration data: hcad.org
- Harris County Clerk — Recorded deed restrictions: cclerk.hctx.net
- FEMA Flood Map Service Center — Current FIRMs, floodplain designations, BFE data: msc.fema.gov
A Plan Built for a City With No Zoning — Which Means Built for Chapter 42 and Chapter 19, Not a Zoning Table
Based on Houston Code of Ordinances Chapter 42 (land development) and Chapter 19 (floodplain, as amended 2018), Harris County floodplain requirements, and Houston Permitting Center submittal standards as of June 2026.