Cultivation facility build-out costs

How much does a cultivation build-out cost per square foot?

Published ranges run from about $150 to $600 per square foot for indoor facilities. The spread is wide because sources measure different things. All of the figures below are trade estimates from firms that design or build grows, not independent surveys.

Source	Figure	What it covers
Next Big Crop (updated January 2025)	$250 to $600 per square foot	All-in: design and engineering $2 to $8, equipment $50 to $300, construction $100 to $300
Terrapin Construction Group (March 2025)	$200 to $450 per square foot; $150 to $350 value-engineered	Hard construction costs across major systems
IIPR Q2 2026 supplement	$283 per rentable square foot	A REIT’s invested capital across its portfolio at 30 June 2026, including purchase price and landlord-funded improvements

Watch the denominator. Some figures are per square foot of building, some per square foot of canopy. Canopy is usually a fraction of the building, so a per-canopy-foot number will look much higher for the same project.

Next Big Crop attributes the low end of its equipment range to conventional HVAC, HID lights, and fixed benches, and the high end to LED, multi-tier racking, and automation. It also notes that design costs run higher in metropolitan Northeast markets.

Where does the money go?

Into air, power, and light. Terrapin’s March 2025 breakdown of hard costs by system:

System	Range per square foot
HVAC and environmental controls	$25 to $60
Electrical, lighting and power	$20 to $45
Shell and structure (insulated metal panels)	$18 to $35
General conditions and contractor fee	$12 to $22
Flooring, benches, and racking	$10 to $27
Plumbing and irrigation	$8 to $18

Items that sit outside most per-square-foot quotes:

• Utility service upgrades. Transformers, switchgear, and the utility’s own lead time.
• Security. Cameras, access control, alarms, and recording storage. Rules vary: California exempts cultivation-only premises from its video surveillance regulation, while many states apply full coverage.
• Odour control. Carbon filtration is a common local permit condition.
• Water treatment and wastewater.
• Post-harvest space. Dry rooms, trim, packaging, and vault storage.
• Permits, impact fees, and local conditions of approval.
• Working capital to carry payroll and power through the first harvests. See how much a cultivation license costs for fees and a full start-up budget.

Which rules drive the design?

Energy and fire codes, more than the cannabis regulator. Massachusetts shows how specific this can get. Under 935 CMR 500.120(11):

• Horticultural lighting power density may not exceed 36 watts per square foot, or 50 for Tier 1 and Tier 2 cultivators, unless all fixtures are on the DesignLights Consortium qualified list at a set efficacy margin.
• HVAC and dehumidification must meet building and energy code, with a certification from a Massachusetts licensed mechanical engineer.
• Facilities generating 80% or more of annual on-site energy from renewable or clean sources are exempt from the lighting and HVAC limits.

A cap like that pushes designs toward LED, which raises first cost and lowers operating cost. If the facility includes extraction, fire-code requirements add another layer; see extraction facility requirements. Local zoning conditions are covered in zoning, buffers, and conditional use permits.

Build new or buy an existing facility?

Compare the asking price with replacement cost, then adjust for what you are actually getting.

Illustrative: replacement cost check

Line	Amount
Existing 20,000 square foot indoor facility, asking price for building, improvements, and equipment	$3,000,000
Asking price per square foot	$150
Cost to build equivalent new, at an assumed $300 per square foot	$6,000,000
Asking price as a share of replacement cost	50%
Buyer’s allowance for HVAC replacement and deferred maintenance	$600,000
Adjusted cost to buyer	$3,600,000, or 60% of new

Illustrative only. The $300 figure is an assumption inside the published ranges above. A discount to replacement cost looks attractive, but it is only a bargain if the facility can produce at a cost per pound below the current wholesale price. Test that with the cultivation cost-per-pound calculator and the method in cultivation valuation: per square foot and per pound.

Reasons to buy existing:

1. Power is already there.
2. Permits, certificate of occupancy, and local approval are in hand.
3. Time. Revenue can start a crop cycle after closing, not after a construction schedule.
4. In oversupplied states, sellers accept a fraction of cost. See how oversupply and price compression affect value.

Reasons to build:

1. Older rooms may be inefficient by design: HID lighting, single-tier layouts, undersized dehumidification.
2. Unpermitted work is common in early-generation grows and becomes the buyer’s liability.
3. A new licence in a growing market may not have existing facilities to buy.

Why built cost is not market value

Special-purpose improvements lose value quickly when the tenant or the market fails. IIPR reported in August 2026 that four former 4Front properties totalling 488,000 square feet had only tentative arrangements with prospective tenants, and it sold a Texas land parcel at a $4.9 million loss. Grow rooms are worth the most to another licensed grower in the same state, and much less to anyone else.

For sellers, this means a build-out budget is supporting evidence, not a price. Keep the records anyway: stamped plans, closed permits, equipment lists with serial numbers and purchase dates, commissioning reports, and utility bills. Buyers use them to confirm replacement cost and condition, and equipment lenders need them; see equipment financing for cultivation and extraction.

Build-out diligence checklist for buyers

1. Electrical service size, utility account history, and any demand charges.
2. HVAC make, age, service records, and whether capacity matches the lighting load.
3. Building permits and final inspections for every phase of work.
4. Fire sprinkler and alarm sign-offs.
5. Environmental and mould history.
6. Actual yields per square foot against design, from track-and-trace records.
7. Who owns the improvements under the lease, and what must be restored at surrender. See landlord consent and cannabis lease clauses.

This is general education, not engineering, legal, or appraisal advice.