Simonton, Texas requires city construction approval, and new homes need a certificate of occupancy after a successful final inspection.123 Fort Bend County handles septic applications, permits, fees and appeals inside Simonton.4 Occupied RVs outside licensed parks are limited to 7 days in any month on private property, excluding manufactured home parks.5
At a glance
- Building permit
- City application, review, approval and applicable fee1
- Zoning
- We could not confirm general zoning; ask Simonton City Hall6
- Septic permits
- Fort Bend County handles applications, permits, fees and appeals4
- RV living
- Outside licensed parks: occupied RVs limited to 7 days per month on private property, excluding manufactured home parks5
- Occupancy approval
- New homes and newly installed mobile homes need a city certificate of occupancy3
- Tiny homes and setbacks
- We could not confirm specific rules; ask Simonton City Hall before buying6
Who to call
Building permits
City of Simonton Building Permit Department / City Hall
City construction applications, published building checklists and certificate-of-occupancy forms; starting contact for planning and floodplain questions
35011 FM 1093
Septic permits
Fort Bend County Environmental Health Department
County contact for Simonton septic applications, permits and inspections
4520 Reading Rd., Suite A-800, Rosenberg, Texas 77471
Contact details are copied from each office’s official page and were checked against it on October 11, 2026.
Off-grid gear
Going off-grid in Simonton means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Simonton, TX?
Simonton construction applicants must submit an application for city review and approval and pay the applicable fee.1 Simonton publishes a residential permit application and labels its floodplain building permit application as required for all construction in Simonton.6 Ask the Building Permit Department which forms cover your proposed house, addition or other work before starting.6
Simonton construction permits last 12 months; an extension of up to 6 months is available if requested before expiration and substantial construction has commenced.1 The city council sets the fee schedule by resolution, so request the current schedule for your project.7
Who issues building permits in Simonton, and how do you apply?
Start with the City of Simonton Building Permit Department through City Hall; the city accepts permit applications by email at [email protected].6 The city forms page publishes new-home plan-review and inspection checklists, remodel/addition information and a certificate-of-occupancy application.6 Use those project-specific materials when preparing your submission.6
Simonton requires a certificate of occupancy before habitation of new residential construction and newly installed mobile homes, with a successful final inspection by the city building code official first.32 Permanent utility connections must wait until the certificate is issued, including electric, water, sewer or septic, and gas connections.8
Does Simonton have zoning, lot-size or setback rules?
We could not confirm whether Simonton has a general zoning ordinance or establish city lot-size, setback, minimum dwelling-size or accessory-dwelling requirements; ask City Hall to identify the rules for your parcel and intended use.6
Simonton does regulate subdivision and development platting: preliminary and final plats, or a development plat for a single unplatted lot, require approval unless an exception applies.9 Construction and utility connections in an unapproved subdivision are prohibited except as specifically permitted.9 Agricultural-use land has a subdivision-platting exemption, but that exemption concerns platting and does not establish permission to occupy an RV or bypass construction approval.1051
How do septic permits work inside Simonton?
Simonton routes all on-site sewage facility applications, permits, fees and appeals through Fort Bend County; a license is required before installation or substantial modification.4 The city administrator coordinates with Fort Bend County as the authorized septic agent for Simonton.11 Contact Fort Bend County Environmental Health about the application for your site.412
Texas generally requires a permit and approved plan to construct, alter, repair, extend or operate a septic system, and local authorities may impose stricter requirements.13 The state exemption for a single-family dwelling on at least 10 acres also requires a licensed site evaluation, all system parts at least 100 feet from property lines, on-site disposal, no nuisance or groundwater pollution, and no other dwelling on the tract; ask the county whether local requirements allow the exemption.13
Can you live in an RV or tiny home in Simonton?
Simonton generally prohibits RV occupancy outside a city-licensed RV park, with a private-property exception of no more than 7 days in any month; manufactured home parks are excluded from that exception.5 Storing or parking an RV outside a park requires no occupants, no temporary or permanent utility connections, and no parking on or extending over public property.5 Those conditions make an RV on a vacant lot unsuitable as an ongoing residence while building.5
Licensed parks also have occupancy limits by RV type, including 4 months in any consecutive 12-month period for motor homes, travel trailers and fifth wheels.14 We could not confirm a specific tiny-home occupancy rule; ask City Hall how the proposed structure would be classified before buying it.6
Building a home in Simonton: what are the steps?
- Ask Simonton City Hall which construction applications and plan-review materials fit your project, and resolve any required plat approval before construction.69
- Ask Fort Bend County Environmental Health to review your septic proposal before installation, and obtain the required septic approval.412
- Submit the city construction application, obtain approval and pay the applicable fee before proceeding.1
- For a home in the designated floodplain, address elevation, foundation and no-fill requirements in the site plan; Simonton requires an elevation survey before the certificate of occupancy.15
- Complete the city final inspection and obtain the certificate of occupancy before habitation and permanent utility connections.238
What should you check before buying land in Simonton?
For Simonton land in the designated floodplain, new or substantially improved or repaired homes must be elevated and use pier-and-beam foundations to the extent allowed by applicable law; fill is prohibited on a lot used to construct a foundation or structure there.15 Ask City Hall to review the proposed site plan before budgeting for foundation work.156
Simonton adopts county driveway and culvert requirements on county easements and rights-of-way; where a culvert is missing, the landowner pays for the culvert and the county Road and Bridge permit fee.16 We could not confirm the private-well approval requirements inside Simonton; ask City Hall which office must approve your water source.6 For land outside city limits, consult the Fort Bend County guide: county development-permit requirements apply to unincorporated land.17
Watch-outs
- Simonton RV occupancy on private land outside licensed parks is limited to 7 days per month, excluding manufactured home parks; do not plan a longer construction stay without asking City Hall about lawful alternatives.56
- Simonton’s agricultural subdivision exemption addresses platting, while city construction approval remains a separate requirement.101
- Simonton building permit fees are non-refundable.6
Sources
- ecode360.com (Simonton), quoted and re-checked
- Simonton Code of Ordinances, § 8-21 Required construction permit; certificate of occupancy (Simonton), quoted and re-checked
- Simonton Code of Ordinances, § 8-21 Required construction permit; certificate of occupancy (Simonton), quoted and re-checked
- Article IV: Septic Systems (Simonton), quoted and re-checked
- Simonton Code of Ordinances, § 16-104 Recreational vehicles outside RV parks (Simonton), quoted and re-checked
- City of Simonton Building Permit Department / City Hall (simontontexas.gov)
- ecode360.com (Simonton), quoted and re-checked
- Simonton Code of Ordinances, § 8-21 Required construction permit; certificate of occupancy (Simonton), quoted and re-checked
- Simonton Code of Ordinances, § 26-4 Special provisions (Simonton), quoted and re-checked
- Simonton Code of Ordinances, § 26-4 Special provisions (Simonton), quoted and re-checked
- Article IV: Septic Systems (Simonton), quoted and re-checked
- Fort Bend County Environmental Health Department (fortbendcountytx.gov)
- Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule), quoted and re-checked
- Simonton Code of Ordinances, § 16-104 Recreational vehicles outside RV parks (Simonton), quoted and re-checked
- Simonton Code of Ordinances, § 8-24 Foundations and § 8-27 Site plan (Simonton), quoted and re-checked
- Simonton Code of Ordinances, § 12-115 Driveway culverts (Simonton), quoted and re-checked
- Development Permits | Fort Bend County, quoted and re-checked
Written October 11, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.