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Build a Greenhouse Cost

Build a Greenhouse Cost

National average
$13,000 - $20,000
(building a 12’x12’ conventional greenhouse with a cedar frame and polycarbonate sheet)
Low: $5,000 - $10,000

(clear the area, PVC frame, polyethylene film)

High: $25,000 - $35,000

(galvanized steel frame and glaze with tempered glass)

Cost to build a greenhouse varies greatly by region (and even by zip code).
Get free estimates from General Contractors in your city.

The average cost of building a greenhouse is $13,000 - $20,000.

How much does it cost to build a greenhouse?

A greenhouse is a structure that is designed to help plants grow year-round. It affords protection from the elements while allowing sunlight to flow through its confines. Greenhouses are always constructed of a transparent material such as glass or plastic. These include polyethylene 1, corrugated fiberglass 2, PMMA acrylic glass, and polycarbonate 3 sheets. Structures range in size from small garden sheds to large, industrial greenhouses.

Building a greenhouse costs on average $13,000 to $20,000, with the average homeowner spending around $16,500 on building a greenhouse measuring 12'x12' that is constructed from polycarbonate sheets and a cedar wood frame.

Building a greenhouse costs
National average cost$16,500
Average range$13,000 - $20,000
Minimum cost$5,000
Maximum cost$35,000


Cost breakdown

The costs for the project will include:

  • Excavation and site preparation - costs will vary according to the level 2 of work necessary, but all such projects would require the leveling of the site in order to receive the concrete and the drilling of a well with a 6" diameter feed and a horse power pumping 1 mechanism (unless the pre-existing well or water supply could be easily tapped into and channeled to the greenhouse. This might be problematic in areas of heavy frost, however);

  • Concrete - the knee walls and flooring of the greenhouse would demand roughly 3.5 cubic yards of concrete. This is priced at an average of $75 per cubic yard, and with labor would cost around $540;

  • Materials - the greenhouse described here would demand a heavy steel frame, 8' walls constructed of multi-wall polycarbonate or glass, roofing vents, and electronic exhaust fans. The average pricing on a 144 square foot greenhouse using such materials is $2700;

Enhancement and improvement costs

Heating - greenhouses located within areas that receive freezing weather might require the addition of a heating unit. These come as electric and propane models, and the average price for a unit sized to meet the needs of the structure described here would be less than $250;

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Remodeling Terms Cheat Sheet

Definitions in laymen's terms, cost considerations, pictures and things you need to know.
See full cheat sheet.
1 Polyethylene: A resilient, pliable, synthetic resin made by polymerizing ethylene and primarily used for containers, packaging, corrosion-resistant piping, and insulation
glossary term picture Fiberglass 2 Fiberglass: Plastic that is reinforced with glass fibers. The fibers may be mixed randomly throughout the plastic, or come in the form of a flat sheet, or be woven into a fabric
3 Polycarbonate: Thermoplastic polymer with high impact strength used in a variety of applications such as compact disks and bulletproof windows

Cost to build a greenhouse varies greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.

Steel and glass greenhouse construction on a residential lot

Labor cost by city and zip code

Compared to national average
Alpena, AR
-48%
Armonk, NY
+55%
Athens, GA
-9%
Atlanta, GA
+24%
Aurora, CO
+10%
Bastrop, TX
-22%
Bradenton, FL
-8%
Buffalo, NY
-1%
Chicago, IL
+40%
Cincinnati, OH
+6%
Cleveland, OH
+7%
Columbus, OH
+5%
Dallas, TX
+10%
Denver, CO
+1%
Detroit, MI
+16%
Dickinson, TX
+31%
Durham, NC
-1%
El Paso, TX
-28%
Elmore, OH
-22%
Fort Worth, TX
+6%
Hinesville, GA
+8%
Houston, TX
+24%
Las Vegas, NV
+7%
Lexington, KY
+1%
Los Angeles, CA
+11%
Madison, AL
-13%
Mason, MI
+8%
Medford, OR
-21%
Miami, FL
+1%
Millville, PA
-5%
Minneapolis, MN
+25%
Missoula, MT
-21%
Naples, FL
-3%
New Orleans, LA
+35%
Norfolk, VA
-6%
Orlando, FL
+2%
Owasso, OK
-15%
Peyton, CO
-4%
Philadelphia, PA
+40%
Phoenix, AZ
0%
Reading, PA
+4%
Sacramento, CA
+8%
Saint Paul, MN
+20%
San Diego, CA
+11%
San Jose, CA
+33%
Santa Fe, NM
-26%
Sewanee, TN
-49%
Smyrna, GA
+10%
Spokane, WA
-17%
Sumter, SC
-24%
Labor cost in your zip code
Last modified:   
Methodology and sources