Buying Land in Cumberland County, Maine

Maine's most populous county, and honestly its most urban

Cumberland County, seated in Portland, is Maine's most populous county by a wide margin -- roughly 303,000 residents at the 2020 Census, close to a fifth of the entire state's population, packed into about 835 square miles. Portland itself is Maine's largest city, and the county's inner ring -- South Portland, Westbrook, Falmouth, Cape Elizabeth, Scarborough -- is largely built out with full municipal water, sewer, and zoning infrastructure. If you're evaluating land in or near Portland, treat this like buying in any established New England small city: existing zoning districts, established lot lines, and municipal utilities are the norm, not raw-land due diligence.

Portland is mid-rewrite of its own zoning code -- check the current version, not an old map

Portland is currently working through "ReCode Portland," described by the city as its first full rewrite of its land-use code in more than half a century. The project's first enacted phase already simplified the city's accessory dwelling unit (ADU) rules and significantly relaxed parking minimums specifically to lower the cost of multifamily development -- changes substantial enough that, per Mainebiz reporting, some pre-construction developments saw allowable unit counts jump dramatically once new vertical-construction rules applied. Because this rewrite is actively in progress, don't rely on an older zoning map or a real-estate listing's description of "what you can build" for a Portland parcel -- confirm current zoning and any pending code changes directly with the city's planning department before making assumptions about buildable use.

Genuinely rural land exists here too -- mainly in the county's outer towns

Cumberland County isn't uniformly urban. Its western and northwestern towns -- Standish, Baldwin, Sebago-area communities, and towns toward the New Hampshire border -- carry a real rural, forested, lake-country character, and this is where raw or undeveloped land buyers are most likely to find the kind of parcel this site generally covers: larger lots, well-and-septic infrastructure rather than municipal water and sewer, and zoning aimed at low-density residential, agricultural, or recreational use rather than urban infill. Even here, each town runs its own separate zoning ordinance -- there's no unifying "rural Cumberland County" zoning code -- so confirm the specific town's rules directly rather than assuming they mirror a neighboring town's.

Cumberland County also has real coastline and island communities (Casco Bay's islands, Cape Elizabeth, Freeport toward the Sagadahoc County line), where Maine's Mandatory Shoreland Zoning Act's statewide 250-foot buffer applies on top of whatever the local town's zoning otherwise allows -- the same rule described on the state hub, layered onto this county's more built-up coastal towns rather than the remote coastline found further Down East.

A second, separate Portland mandate: inclusionary zoning's real affordable-housing requirement

ReCode Portland isn't the only major Portland zoning fact worth knowing before planning a residential project here. Separately, Portland's inclusionary zoning ordinance requires 25% of units in any new residential building of 10 or more units to be set aside as affordable housing, or a per-unit fee-in-lieu instead -- a fee that started at $150,000 in 2020 and has risen to roughly $182,830 per unit by 2025 reporting. This is a documented, consequential requirement: independent analysis found permitted residential units dropped roughly 82% in the year after the rule was tightened in November 2020, and the city itself launched a formal review of the ordinance in December 2025 amid developer concerns it's stalling housing production. See our dedicated housing-mitigation-requirements page for Cumberland County for the full mechanics and current status.

What to check before buying land in Cumberland County

For a Portland or inner-suburb parcel, confirm current zoning directly with the city or town's planning department given ReCode Portland's active rewrite, and expect municipal water/sewer to already be present rather than needing well-and-septic due diligence. For an outer-town parcel toward Sebago Lake, Standish, or Baldwin, treat it like ordinary rural Maine land -- confirm the specific town's zoning ordinance, check for shoreland zoning if it's near water, and expect a state-licensed Site Evaluator process for septic design rather than a county health department.