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Maryland Statewide Rule

Maryland Solar: HOA Limits Fail the 5 Percent and 10 Percent Test

Some RestrictionsApplies statewide across Maryland (2026)

Key Facts

Governing statute
Md. Code, Real Prop. § 2-119
Cost test
A restriction is unreasonable if it raises installation cost by at least 5% over the initially proposed installation
Production test
A restriction is unreasonable if it cuts generation by at least 10% below the initially proposed installation
Where the right applies
Roof or exterior walls the owner owns or has the exclusive right to use; not common areas and not ground mounts
Proof requirement
Documentation satisfactory to the association from an independent solar design specialist who is NABCEP certified or has attested by affidavit to 30 systems designed in the prior 3 years
Systems covered
Solar collectors and other solar energy devices for electricity generation, space heating, space cooling, or water heating
Common areas
The association may prohibit or restrict installations there, and the board may install a system on common elements notwithstanding the governing documents
Historic carve-out
Does not apply to property listed in, or found eligible by the Director of the Maryland Historical Trust for, the Maryland Register of Historic Properties
Last verified: September 1, 2026Source: Maryland General Assembly

Summary

Maryland Real Property § 2-119 bars any deed covenant, declaration, contract, security instrument, or condominium or homeowners association bylaw from imposing unreasonable limitations on installing a solar collector system on the roof or exterior walls of improvements the owner owns or has the exclusive right to use. Maryland is one of the few states that defines unreasonable numerically: a restriction is unreasonable if applying it to the particular proposal raises installation cost by at least 5 percent over the initially proposed installation or cuts energy generation by at least 10 percent below the initially proposed installation. The burden of proof sits with the owner, who must supply documentation satisfactory to the community association prepared by an independent solar panel design specialist certified by the North American Board of Certified Energy Practitioners or who attests by affidavit to having designed at least 30 solar collector systems in the prior 3 years. The section does not reach common areas, ground mounts, or historic property.

(b) (1) A restriction on use regarding land use may not impose or act to impose unreasonable limitations on the installation of a solar collector system on the roof or exterior walls of improvements, provided that the property owner owns or has the right to exclusive use of the roof or exterior walls. (2) For purposes of paragraph (1) of this subsection, a restriction on use is unreasonable if application of the restriction on use to a particular proposal: (i) Increases the installation cost of the solar collector system by at least 5% over the projected cost of the initially proposed installation; or (ii) Reduces the energy generated by the solar collector system by at least 10% below the projected energy generation of the initially proposed installation. (3) (i) The owner shall provide documentation that is satisfactory to the community association to show that the restriction is unreasonable under paragraph (2) of this subsection. (ii) The documentation required under subparagraph (i) of this paragraph shall be prepared by an independent solar panel design specialist who: 1. Is certified by the North American Board of Certified Energy Practitioners; or 2. Has attested by affidavit to designing at least 30 solar collector systems in the course of trade within the prior 3 years.

Source: Maryland General AssemblyView official code

Full Breakdown

Section 2-119 is drafted as a limit on private land-use restrictions rather than as an HOA statute, which is why its reach is wider than the Maryland Homeowners Association Act. Subsection (a)(2) defines a restriction on use to include any covenant, restriction, or condition in a deed, a declaration, a contract, the bylaws or rules of a condominium or homeowners association, a security instrument, or any other instrument affecting the transfer or sale of real property or any other interest in real property. That sweeps in a Title 11 condominium regime, a Title 11B homeowners association, a lender's covenant in a security instrument, and a bare subdivision deed restriction in a community with no association at all.

What counts as solar is defined in subsection (a)(3): a solar collector system means a solar collector or other solar energy device whose primary purpose is to provide for the collection, storage, and distribution of solar energy for electricity generation, space heating, space cooling, or water heating. Solar water heating and solar space cooling are inside the definition, not just photovoltaic panels. What is missing is any mention of a clothesline, and Maryland handles line drying separately in Real Property § 14-130, so the solar definition should not be stretched to cover it.

The location limit is the first thing a Maryland homeowner should check. Subsection (b)(1) protects installation "on the roof or exterior walls of improvements, provided that the property owner owns or has the right to exclusive use of the roof or exterior walls." A ground-mounted array in a yard is not described, and neither is an installation on a roof the association owns and maintains. A condominium unit owner whose roof is a general common element does not get the benefit of subsection (b)(1) for that roof.

Subsection (b)(2) is the provision that makes Maryland unusual. A restriction on use is unreasonable if application of the restriction to a particular proposal increases the installation cost of the solar collector system by at least 5 percent over the projected cost of the initially proposed installation, or reduces the energy generated by at least 10 percent below the projected generation of the initially proposed installation. The comparison is always against the owner's own initially proposed installation, so the analysis is proposal-specific: a rule requiring panels to be moved from a south-facing front slope to a rear slope may be lawful on one Maryland roof and unlawful on the next.

The evidentiary burden runs against the owner and is unusually formal. Under subsection (b)(3)(i), the owner shall provide documentation that is satisfactory to the community association showing that the restriction is unreasonable under the 5 percent or 10 percent test. Subsection (b)(3)(ii) requires that documentation to be prepared by an independent solar panel design specialist who is either certified by the North American Board of Certified Energy Practitioners or who has attested by affidavit to designing at least 30 solar collector systems in the course of trade within the prior 3 years. A homeowner's own spreadsheet, or a quote from the installing contractor who is not independent, does not meet subsection (b)(3).

Common areas are governed by a separate rule that runs the other way. Subsection (b)(4)(i) allows a community association to prohibit or restrict installation of a solar collector system in the common area or common elements, and (b)(4)(ii) allows it to set reasonable restrictions on the number, size, place, or manner of placement or installation of a system installed there. Subsection (b)(4)(iii) then gives the board an affirmative power: notwithstanding the governing documents, and provided the installation is not otherwise prohibited by applicable law, the board of directors has discretion to install a solar collector system in the common area or common elements. A Maryland board can put solar on the clubhouse without a membership vote.

Maryland also codifies the solar easement, which is the tool for protecting sunlight across a neighbor's land. Under subsection (c), an owner who has installed or intends to install a system may negotiate for a written solar easement, defined in (a)(4) as an interest in land conveyed or assigned in perpetuity that limits the use of land to preserve receipt of sunlight for the owner's system. The instrument must describe the easement's dimensions in measurable terms, including vertical or horizontal angles in degrees or the hours of the day on specified dates when direct sunlight to a specified surface may not be obstructed; state the restrictions on vegetation, structures, and other objects that would impair passage of sunlight; and state the terms for revision or termination. It must be recorded in the land records of the county where the property is located. Nothing in § 2-119 creates such an easement automatically; it has to be negotiated and recorded.

Subsection (d) removes the whole section from historic property that is listed in, or determined by the Director of the Maryland Historical Trust to be eligible for inclusion in, the Maryland Register of Historic Properties. Maryland attached the identical carve-out to its clothesline right at § 14-130(b) and its low-impact landscaping right at § 2-125(d).

Violations & Penalties

Section 2-119 operates by making the offending restriction unenforceable rather than by fining anyone, so the sequence in a Maryland dispute is documentary. The owner submits the proposal, the association applies a restriction, and the owner then commissions the independent specialist's documentation required by subsection (b)(3) showing the 5 percent cost increase or 10 percent generation loss. Because that documentation must be "satisfactory to the community association," a Maryland owner should expect the association to contest its sufficiency, and should keep the initially proposed installation's cost and production estimates on file, since both prongs measure against that baseline.

10 controls the process and forbids any fine, voting suspension, or other infringement until the board serves a written cease-and-desist demand allowing at least 15 days to abate and then a notice of the right to a hearing allowing at least 10 days to request one, with the proposed sanction stated in the notice. 10(c) allows suit for damages or injunctive relief with counsel fees to the prevailing party. In a condominium the parallel procedure is Real Property § 11-113. Real Property § 11B-115(c) additionally places a Title 11B violation within the enforcement duties and powers of the Division of Consumer Protection of the Office of the Attorney General under Title 13 of the Commercial Law Article.

Frequently Asked Questions

Can a Maryland HOA ban rooftop solar panels?
No. Real Property § 2-119(b)(1) provides that a restriction on use regarding land use may not impose or act to impose unreasonable limitations on installing a solar collector system on the roof or exterior walls of improvements the owner owns or has the exclusive right to use, and the definition of restriction on use expressly includes condominium and homeowners association bylaws and rules.
What makes a restriction unreasonable in Maryland?
A numeric test. Under § 2-119(b)(2), a restriction is unreasonable if applying it to the particular proposal increases installation cost by at least 5 percent over the projected cost of the initially proposed installation, or reduces energy generated by at least 10 percent below the projected generation of that installation.
Who has to prove the 5 percent or 10 percent effect?
The owner. Section 2-119(b)(3) requires the owner to provide documentation satisfactory to the community association, prepared by an independent solar panel design specialist certified by the North American Board of Certified Energy Practitioners or who has attested by affidavit to designing at least 30 solar collector systems in the course of trade within the prior 3 years.
Does the law cover a ground-mounted array or a shared roof?
No. The protection in § 2-119(b)(1) is limited to the roof or exterior walls that the property owner owns or has the right to exclusively use. Installations in the common area or on common elements fall under § 2-119(b)(4), which lets the association prohibit or restrict them.
Can I stop a neighbor's tree from shading my panels?
Only by agreement. Section 2-119(c) lets an owner negotiate a written solar easement, which must state the dimensions in measurable terms such as angles in degrees or the hours on specified dates when sunlight may not be obstructed, list the restrictions on vegetation and structures, state how it may be revised or terminated, and be recorded in the county land records. Maryland does not create the easement automatically.
Are historic properties covered?
No. Section 2-119(d) exempts restrictions on use on historic property listed in, or determined by the Director of the Maryland Historical Trust to be eligible for inclusion in, the Maryland Register of Historic Properties.

Sources

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