Lago Vista, Texas Building Permit Guide

Lago Vista’s Development Services department issues building and trade permits inside the city limits, and every application, payment and inspection request is filed online in MGO Connect. Most applicants must hold a current City contractor registration, and a new house is charged a $400 review fee plus $0.50 per square foot under the fee schedule Council adopted on May 21, 2026.

What requires a permit in Lago Vista?

Lago Vista struck the residential code’s list of permit-exempt work (IRC section R105.2) from its adopted codes. Its building ordinance requires a City permit to build, enlarge, alter, repair, move, convert or demolish any building, structure or manufactured home, and to install plumbing, electrical, mechanical or irrigation systems. Owners planning small repairs are told to contact the City first to find out whether a permit is needed.

A building permit does not cover fences, pools or irrigation; each needs its own permit. Grading, fill and removing trees other than Ashe junipers also need City approval.

Who issues permits in Lago Vista?

Development Services processes all building-related permits, manages inspections and handles plats, zoning, business licences and certificate of occupancy changes inside city limits. It also staffs the Planning and Zoning Commission, the Building and Standards Commission and the Board of Adjustment. Plan review for new one- and two-family homes is done by a reviewer from the City’s approved third-party list, while City staff still check zoning, height, setbacks, impervious cover and outdoor lighting.

MGO Connect, contractor registration and owner permits

Applications, uploads, payments and inspection requests all go through MGO Connect. The City publishes a step-by-step guide for each common permit type and for MGO tasks such as creating an account, uploading a file and paying online. Plan review fees are paid before plans go out for review, and the permit is released in MGO once review is approved and the remaining fees are paid.

• Contractor registration: since January 1, 2023 most permits can only be issued to a contractor registered with the City. Register in MGO before applying, uploading a $10,000 indemnity bond, a liability insurance certificate naming the City of Lago Vista as holder, and a disclosure of adverse judgments on construction contracts. The annual fee is $500 for general, residential and demolition or home-moving contractors and $250 for home improvement and tree removal contractors; licensed electrical, plumbing, mechanical, gas, pool, well and septic trades are fee exempt. Registrations expire on December 31.
• Homeowners: an owner can take out permits for work on a primary residence that has a homestead tax exemption, with documentation and an affidavit naming the registered contractors who will do the work.
• Commercial and multifamily: these projects need site development review and approval, usually with a professional engineer, and a Planning and Zoning Commission design review if it was not part of the zoning approval.

Lago Vista permit fees

Ordinance 26-05-21-01 replaced the old Appendix A with a stand-alone fee schedule adopted on May 21, 2026, in force from June 1, 2026. Selected building fees:

Starting work before the permit is issued doubles the fee. If you withdraw or never build, the City refunds the permit fee less 50%, but a separate plan review fee is never refunded. Water and wastewater impact fees are $3,486 and $2,630 per service unit.

Trade permits and fire review in Lago Vista

Plumbing, electrical and mechanical permits are issued after or alongside the building permit, and only to state-licensed master plumbers and electricians, licensed mechanical contractors or someone the master designates in writing. Each trade must also register with the City and file a copy of its state licence.

For a water heater, HVAC unit or panel change-out, the small jobs application must state the size and whether the equipment is like for like; a final inspection is usually the only one needed.

Documents for a new home in Lago Vista

Since October 27, 2023, new one- and two-family homes must have their construction plan review approved by a City-approved third-party reviewer before the permit application is filed. The City’s New Single Family Permit Guide lists what to upload:

Lots needing a septic system must include the on-site sewage facility permit from the Lower Colorado River Authority, TCEQ’s septic agent for Lago Vista, with the plans, and lots in the 1% annual chance floodplain need an elevation certificate and a surveyor’s benchmark letter before the permit is issued.

How to get a Lago Vista building permit

Lago Vista inspections

Request inspections in MGO Connect: open the permit project, go to Tasks, choose New Request and pick the inspection type and date. A request is refused when the day is full, a holiday, a day the City does not inspect, or when the project has not reached that stage. The signed permit and approved documents must be on site whenever work is going on.

• Layout: corner pins flagged, string lines and foundation staked, erosion controls and culverts in, and the permit card posted, together with plumbing rough and the form survey.
• Foundation: needs the engineer’s inspection report and the surveyor’s form survey before it can be scheduled.
• Frame: includes building height verification certified by a land surveyor, with plumbing top-out and mechanical and electrical rough.
• Insulation and energy: third-party duct and air leakage test reports are uploaded before finals are scheduled.
• Finals: the gas final cannot be booked together with the building final; landscaping, permanent erosion control and every fee, including tree replacement fees, must be complete before the certificate of occupancy.

Re-inspections cost $150 for the first, $300 for the second and $500 from the third on; after-hours inspections are $300 and weekend or holiday inspections $350.

Local Lago Vista rules to plan for

• Permit life: accessory permits last 6 months, residential and site permits 12 months, and multifamily or commercial permits over 5,000 sq ft 24 months. A permit is void if work stops for 2 months; six-month extensions cost the original permit fee or the renewal fee, whichever is greater, up to 36 months in total.
• Garages: every new single-family home or duplex unit must be designed with a garage of at least 400 sq ft.
• Fences and retaining walls: only wrought iron is allowed beside the golf course, and front and corner side yards are limited to wrought iron, 3 ft privacy or rail fences. Retaining walls of 48 inches or more need an engineer’s design, and from 72 inches the backfill must also be tested by a geotechnical firm.
• Accessory buildings: may not be taller than 9 ft.
• Floodplain: the first habitable floor must be at least 1 ft above the base flood elevation, confirmed by a FEMA elevation certificate as soon as that floor is built.
• Water and sewer: each home or commercial building application triggers a utility extension estimate for City water and sewer, which the City can waive if a current estimate exists.
• Watershed: the City has adopted the LCRA Highland Lakes Watershed Ordinance, and a nonpoint pollution permit has its own City guide.

Texas building code

Texas has no single statewide building code: state law makes the International Residential Code the base code for homes in cities and the International Building Code the base for commercial buildings, with each city choosing the edition and its own amendments, while the National Electrical Code and the energy code apply statewide. Outside city limits most counties issue no building permits for homes. Texas building code rules

Lago Vista permit search and official resources

• Lago Vista — Development Services
• Lago Vista — Permitting
• MGO Connect Permitting Portal guides
• Permit and Planning Application Guides
• New Single Family Permit Guide
• Contractor Registration Application
• Approved third-party plan reviewers
• Lago Vista Fee Schedule page
• Ordinance 26-05-21-01 and adopted fee schedule
• Commercial and multifamily development
• Code of Ordinances, Chapter 3 Building Regulations

Lago Vista permit FAQ

How much is a building permit for a new house in Lago Vista?

A $400 review fee plus $0.50 per square foot, or a $500 review fee plus $0.50 per square foot in the floodplain, under the schedule adopted May 21, 2026. Trade permits ($150 each for residential) and re-inspections are extra.

Do I need a permit for a fence or shed in Lago Vista?

Yes. Fences need a $200 permit and only certain fence types are allowed in front yards and beside the golf course. Sheds and accessory buildings need a permit from 30 sq ft, cost $200 up to 120 sq ft, and may not exceed 9 ft in height.

Do contractors have to register in Lago Vista?

Yes, for most permits. Registration runs to December 31 and costs $500 a year for builders or $250 for home improvement contractors, with a $10,000 bond and insurance naming the City; licensed trades are fee exempt.

Can a homeowner pull a permit in Lago Vista?

Only for a primary residence with a homestead exemption, using an affidavit that lists the registered contractors who will do the work.

Who reviews plans for a new house?

A reviewer from the City’s approved third-party list does the construction review before you apply; Development Services then checks zoning, height, setbacks, impervious cover and lighting.

Which codes does Lago Vista use?

The 2021 International Building, Residential, Fire and Existing Building Codes and the 2023 National Electrical Code, with local amendments in Chapter 3 of the Code of Ordinances.

How do I schedule an inspection in Lago Vista?

Open the permit in MGO Connect, go to the Tasks tab and submit a New Request with the inspection type and date.

Simplify Lago Vista permitting with Alliance Permitting

Alliance Permitting is a permit documentation and submission company in Texas. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Lago Vista permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.