Oklahoma City requires a building permit for every storm shelter, whether it is buried in the yard, set into the garage floor or bolted on top of a slab. The city also keeps a free shelter registry for first responders, open to any home inside city limits.

Cutaway illustration of a house with a storm shelter below the garage floor and a separate underground shelter in the back yard
Two common placements: below the garage floor and underground in the yard.

Oklahoma County’s record in two dates

The county chart below includes the F5 of May 3, 1999. It also shows an EF4 on May 10, 2010 that killed 2 people and injured 49 along its full path. Of the 27 tornadoes recorded in 2016–2025, 2 were rated EF3 or stronger. Oklahoma City has no public tornado shelters, say city officials quoted by KOKH Fox 25. They recommend sheltering in place, so the shelter plan is made house by house.

One permit rule for every shelter type

The Development Center’s storm shelter page states it plainly: a building permit is required to install a shelter above or below ground. That includes a steel safe room anchored to a garage slab.

The permit fee differs by shelter type, and the city’s own pages list different amounts. Ask the installer to confirm the fee for the type you pick and to show it in the written quote. The quote should also say who files the application.

In-ground and slope-top shelters had one more paper on the list: a letter regarding flotation (groundwater pushing a buried shelter upward). It was listed among the permit papers in a 2015 city reminder carried by News On 6. Ask the installer to confirm whether the letter is still required and who supplies it. A company that already pulls shelter permits in Oklahoma City can also tell you how setbacks, garage placement and the inspection steps apply to your lot.

The registry stops at the city line

Oklahoma City’s Storm Shelter Registry is free and voluntary. The information is passed to first responders so they know where to look after a storm. Only shelters inside Oklahoma City limits can be registered. The metro has many separate suburbs. A mailing address that says Oklahoma City does not settle which one your lot is in. Check that before you register, and before you or the installer apply for the permit.

Matching a shelter to an OKC home

Oklahoma City’s housing is newer than Tulsa’s or Lawton’s. About 30% of its homes, 93,554 of 306,366, were built in 2000 or later. That compares with about 14% in Tulsa and 16% in Lawton. Close to half, 47%, were built before 1980.

  • Outdoor underground: the lowest installed range of the shelter types in the table. If the lot is in a floodplain, SoonerSafe, the state rebate program, does not fund a below-ground safe room. Start by checking the flood map for your address.
  • In-garage underground: the $6,000–$15,000 installed range comes from HomeGuide (2024) and Angi (2026), two national guides. Get at least two written quotes from OKC installers.
  • Above-ground safe room: needs the same permit. If you price a steel unit on its own, budget separately for delivery, a concrete pad and anchoring.

Getting an Oklahoma City quote

Quotes are easiest to compare when each one lists these as separate lines:

  • the permit fee for that shelter type
  • dirt haul-off
  • delivery
  • anchoring

Any lights or outlets inside the shelter need a state-licensed electrician. Ask whether that work is included.

Use the form below to request a price for your Oklahoma City address. Ask the installer to:

  • look at the spot in person
  • confirm the address is inside city limits
  • handle the permit for your shelter type
  • put the fee, any flotation letter and the full installed price in writing