Portland, ME Cannabis Regulations: Dispensary Zoning (2026)
Key Facts
- Retail/dispensary floor area cap
- 2,000 sq ft gross
- Cultivation canopy cap, I-L/I-Lb
- under 2,000 sq ft
- Cultivation canopy cap, I-M/I-Mb
- under 7,000 sq ft
- Governing section
- LUC § 6.4.23(C)-(D)
- Cap applies to
- both adult-use and medical dispensaries
Summary
Portland caps marijuana retail stores and registered dispensaries at 2,000 square feet of gross floor area, and separately limits marijuana cultivation facilities to under 2,000 square feet of plant canopy in the I-L/I-Lb zones and under 7,000 square feet in the I-M/I-Mb zones, per Land Use Code § 6.4.23(C)-(D).
C. Marijuana retail stores and registered dispensaries may not exceed a maximum gross floor area of 2,000 square feet. D. Marijuana cultivation facilities shall be limited to less than 2,000 square feet of plant canopy in the I-L/I-Lb zone and less than 7,000 square feet of plant canopy in the I-M/I-Mb zone.
Official source re-checked September 7, 2026: the cited page had not changed since it was quoted.
Full Breakdown
' That cap applies regardless of the underlying zone's general size limits for retail uses, and it applies identically to adult-use retail stores and to state-registered medical dispensaries, the code does not distinguish between the two license types for this purpose. Subsection (D) sets a parallel, though separate, limit on cultivation: facilities may hold less than 2,000 square feet of plant canopy in the I-L and I-Lb (light industrial) zones, and less than 7,000 square feet of plant canopy in the I-M and I-Mb (moderate industrial) zones, a canopy limit, not a building footprint limit, so a larger structure can house the same canopy cap plus processing, packaging, and storage space.
23(B), and on top of whichever zone's Table 6 use classification (permitted or conditional) governs the specific parcel. Subsection (E)'s dual-license rule means a dispensary that stays within the 2,000-square-foot cap can carry both its medical dispensary status and an adult-use retail store license at the same physical facility.
Violations & Fines
Exceeding the 2,000-square-foot gross floor area cap for a marijuana retail store or registered dispensary, or exceeding the 2,000- or 7,000-square-foot plant canopy limits for cultivation in the I-L/I-Lb or I-M/I-Mb zones, is a violation of § 6.4.23(C)-(D) subject to the same zoning enforcement as any other use-standard violation, including denial of the building permit or certificate of occupancy needed to operate.
Frequently Asked Questions
What is the size limit for a marijuana dispensary in Portland, Maine?
How much marijuana plant canopy can a cultivation facility have in Portland?
Does the 2,000-square-foot cap apply to both medical and adult-use marijuana retailers?
Sources & Official References
Other rules in Portland
Compare Portland to another location·View the Maine cannabis regulations overview
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