Before You Build in Mission, TX: Permit & Rule Checklist (2026)
Everything you need to know before starting a home improvement project
Building a fence, installing a pool, or adding a shed? Each project has its own set of local permits and rules in Mission. This guide consolidates fence, pool, ADU, shed, fire pit, and landscaping regulations into one checklist so you know what to expect before you start.
Quick Permit Checklist
At-a-glance overview of permit categories in Mission. Click any card for details.
Fences & Walls
1 rule on file
Swimming Pools
1 rule on file
ADUs & Granny Flats
2 rules on file
Sheds & Outbuildings
1 rule on file
Fire Pits & Outdoor Structures
2 rules on file
Landscaping & Tree Removal
1 rule on file
Fences & Walls
Some RestrictionsHeight limits, materials, permits, and shared fence rules.
Height Limits
Some RestrictionsFence height limits in Mission are governed by Appendix A – Zoning. No statewide height preemption applies. Typical residential standards in South Texas: 6 ft rear/side, 4 ft front yard.
Swimming Pools
Heavy RestrictionsPool permits, safety fencing, and drainage requirements.
Fencing Requirements
Heavy RestrictionsMission regulates residential pool barriers through the building code adopted in Chapter 18, Article II of the City Code, which incorporates the International Residential Code (IRC) and its Appendix AG (swimming pool, spa, and hot tub safety). For multifamily, condominium, and HOA-owned pools, Texas Health & Safety Code Chapter 757 (Pool Yard Enclosure Act) imposes additional statewide barrier rules.
ADUs & Granny Flats
Some RestrictionsAccessory dwelling unit rules and garage conversion permits.
ADU Rules
Some RestrictionsNo statewide ADU mandate in Texas. Mission's zoning code (Appendix A) governs ADU allowances. Contact Mission Planning & Zoning to verify what's permitted in your district.
Garage Conversions
Some RestrictionsGarage conversions require building permits and must comply with Mission's zoning and building codes. Check ADU provisions for potential as additional dwelling.
Sheds & Outbuildings
Some RestrictionsShed permits, setback limits, and outbuilding size rules.
Shed Rules
Some RestrictionsAccessory structures in Mission require building permits above applicable size thresholds. Setbacks and height limits governed by zoning code.
Fire Pits & Outdoor Structures
Some RestrictionsFire pit placement, outdoor burning restrictions, and permits.
Fire Pit Rules
Some RestrictionsRecreational fire pits may be permitted with proper safety precautions and in compliance with Mission fire code. Contained fires with approved fuel sources allowed when no burn ban is in effect.
Outdoor Burning
Some RestrictionsOpen burning of waste in Mission is generally prohibited. Hidalgo County Fire Marshal issues burn bans during drought. Enclosed cooking fires are permitted.
Landscaping & Tree Removal
Few RestrictionsTree removal permits, heritage tree protections, and water rules.
Tree Removal & Heritage Trees
Few RestrictionsNo statewide tree removal permit in Texas. Mission may require permits for right-of-way or protected trees. Verify with the city's planning department.
General Permit Tips
When do you typically need a permit?
Most cities require permits for structural work, including fences over a certain height, pools, ADUs, and sheds above a size threshold. Even projects that seem minor can trigger permit requirements, so it is always best to check first.
How to apply for a building permit
Visit your local building department or their website. Most jurisdictions accept online applications. You will typically need a site plan, project description, and may need contractor information. Processing times vary from same-day for simple projects to several weeks for larger builds.
Common permit violations to avoid
Building without a permit, exceeding approved dimensions, and ignoring setback requirements are the most common violations. Penalties can include fines, required removal of the structure, and complications when selling your home.
Permit Guides for Nearby Cities
Looking for rules beyond permits? View all ordinances we track for Mission.