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Retaining Wall Builders in Edmond, OK

Walls are priced by the face, not the length, and the four-foot line is where the cost curve bends.

$22 – $95 per sq ft of wall facePlanning range, not a quote
Timber pergola over a raised deckTimber pergola over a raised deck
The short version

Edmond exempts a retaining wall no more than four feet tall. Above that it is a different project with a different budget.

Pergola beside a swimming poolPergola beside a swimming pool

The City of Edmond's published exemption list covers a retaining wall no more than four feet tall. Over that height it needs a permit, and in practice it needs engineering, a reinforced footing and a drainage design behind it. That is why a six-foot wall does not cost fifty percent more than a four-foot wall.

Walls are quoted per square foot of wall face, which catches people out. A 40-foot wall averaging three feet high is 120 square feet of face, not 40 feet of anything. As a planning range, modular block runs about $30 to $42 per square foot of face, natural stone $50 to $70, and structural concrete in between.

The lines that blow a wall budget are almost always the ones behind it: the footing, the drainage, and the engineering when the height crosses the threshold.

Worth knowing

Four things that move this number

  • Four feet is the Edmond exemption ceiling. Design to it deliberately or budget for what sits above it.
  • Drainage behind the wall is not optional. Water pressure is what pushes walls over.
  • A seating wall is priced per linear foot and is a different product from a structural retaining wall, even when it looks similar.
  • Terracing two short walls can be cheaper and better looking than one tall one, and it may keep you under the threshold.

Whatever you build, if it burns gas or draws power the utilities are separately permitted work in Edmond. The city requires a permit for any gas piping, new or altered, and for electrical beyond replacing a switch or receptacle.

The range

What this costs in the OKC metro

Priced by the face, not the length. Over four feet it needs a permit in Edmond and usually an engineer.

What you are buildingPlanning rangeUnit
Retaining wall
Priced by the face, not the length. Over four feet it needs a permit in Edmond and usually an engineer.
$22 – $95per sq ft of wall face

Planning ranges for the Oklahoma City metro market, not quotes. They cover the work installed and exclude the permit, which is set by whichever building department has jurisdiction. A quote follows a site visit.

Get a number for your own back garden

Published ranges get you close. A site visit gets you a price, because where the meter and the panel sit changes the job more than the finish does.

Questions

Retaining Walls

When does a retaining wall need a permit in Edmond?

The city's published exemption is a retaining wall no more than four feet tall. Above that, a permit is required. Confirm the measuring point for your wall with Building and Safety, because how the height is measured matters.

What does a retaining wall cost?

By the square foot of wall face, as planning ranges: modular block roughly $30 to $42, structural concrete $38 to $50, natural stone or boulder $50 to $70. A short decorative seating wall is usually quoted per linear foot instead.

Do I need an engineer?

Over four feet, expect to. Under it, usually not, though a wall holding back a slope with a surcharge on top of it is a different question from a wall holding a flower bed.

Why is drainage such a big deal?

Because saturated soil is far heavier than dry soil and pushes far harder. Most failed walls are drainage failures wearing a masonry costume.