Maryland sits at the intersection of three major commercial airports, a dense network of military installations, and one of the most active federal regulatory frameworks in the country. The state’s disclosure obligations cover both commercial aircraft noise and, specifically, military operations — making Maryland one of the more complex disclosure environments for residential real estate professionals.
The Law: Maryland’s Residential Property Disclosure Statement
Maryland requires sellers to complete a Maryland Residential Property Disclosure and Disclaimer Statement. The state’s disclosure framework requires sellers to disclose known conditions affecting the property, with a focus on physical conditions “in the property.”
Military operations — specific statutory obligation: Maryland explicitly requires sellers to disclose to buyers known military operations affecting real property, including:
- Flight operations
- Testing of munitions
- Other military activities which may subject the property to high noise levels
This military-specific provision is separate from general noise disclosures and creates an affirmative obligation for sellers with knowledge of nearby military air operations — even when those operations occur entirely off-site.
Commercial aircraft noise: Maryland’s general disclosure framework — combined with agent licensing obligations and NAR Code of Ethics duties — creates a parallel obligation for commercial airport noise. Courts in neighboring jurisdictions (including relevant case law affecting the DCA/BWI/IAD corridor) have found agents liable under general “material facts” duties for failing to surface known noise impacts.
Key law references:
- Maryland Residential Property Disclosure and Disclaimer Statement
- Maryland Code — Military operations disclosure requirement
- Maryland Real Estate Commission licensing and disclosure standards
The DC Metro Airport Triangle
Maryland’s residential real estate market is uniquely shaped by three major commercial airports operating within a roughly 35-mile triangle:
BWI (Baltimore/Washington International Thurgood Marshall): BWI is the closest major airport to Baltimore and the primary Southwest Airlines hub for the region. It operates a comprehensive Part 150 noise compatibility program with active sound insulation and mitigation initiatives. The BWI Noise Abatement Office maintains detailed community noise maps and actively communicates with affected neighborhoods.
DCA (Reagan National): While DCA is in Virginia, its flight paths heavily affect Maryland properties — particularly in Prince George’s County, parts of Montgomery County, and communities along the Potomac and Anacostia corridors. DCA is one of the most noise-contested airports in the country, with organized community opposition and ongoing FAA proceedings.
IAD (Dulles International): IAD’s noise influence extends into Montgomery and Frederick counties in Maryland. As Dulles has grown, so has the residential development in its surrounding corridors — including areas that weren’t heavily populated when current noise maps were drawn.
Military Installations Creating Disclosure Obligations
Maryland has several active military air installations that trigger the state’s military operations disclosure requirement:
| Installation | Location | Operations |
|---|---|---|
| Andrews AFB (Joint Base Andrews) | Prince George’s County | Air Force One; active fighter and transport operations |
| Naval Air Station Patuxent River | St. Mary’s County | Naval aviation test center; experimental aircraft operations |
| Martin State Airport (175th Wing) | Baltimore County | Maryland Air National Guard; A-10 Warthog operations |
Joint Base Andrews is particularly relevant for Prince George’s County residential sales. Air Force One and supporting operations generate flight patterns that affect communities in Camp Springs, Clinton, Morningside, and adjacent neighborhoods. Maryland’s military operations disclosure requirement creates a direct obligation to surface this information.
NAS Patuxent River tests experimental aircraft — noise profiles that are unpredictable and can significantly exceed commercial aviation levels. Southern Maryland properties within relevant distance carry a specific disclosure obligation under Maryland’s military operations provision.
Practical Checklist for Maryland Realtors
Before listing or making an offer within 15 miles of any Maryland airport or military installation:
- Military operations check: If the property is near Andrews, Patuxent River, or Martin State, determine whether the seller has knowledge of military flight operations affecting the property. Maryland law specifically requires disclosure of known military flight operations that subject the property to high noise levels.
- BWI noise program: The BWI Noise Abatement Office maintains detailed community noise information. For properties near BWI, check their published noise maps and document the property’s estimated DNL level.
- DCA flight path impacts on Maryland: Properties in Prince George’s County and parts of Montgomery County are under active DCA approach and departure corridors. Pull the Reagan National Airport noise exposure maps even for Maryland properties — the flight paths don’t respect state lines.
- IAD corridor check: For Montgomery and Frederick County properties near Dulles, pull IAD noise exposure maps and check for recent NextGen-related flight path changes.
- Andrews AFB AICUZ: Verify whether the property falls within any Joint Base Andrews AICUZ designation. Military compatibility zone designations create specific land use restrictions and disclosure triggers.
- Patuxent River test operations: For St. Mary’s County properties, note that NAS Patuxent River tests prototype and experimental aircraft. Noise events may not follow predictable commercial aviation patterns.
- Use aircraftnoisereport.com for property-level noise data in Maryland’s complex multi-airport, multi-military environment. Particularly valuable for properties under DCA flight paths that don’t trigger Virginia-side disclosure obligations.
- Document your disclosure research: What airports and installations are within relevant distance, what noise data you found, what you communicated — especially for the military operations provision where personal knowledge is the trigger.
The Prince George’s County Example
Prince George’s County sits between BWI, Andrews AFB, and DCA. Residential properties in communities like Greenbelt, Lanham, Laurel, and Camp Springs may be under flight paths from more than one of these facilities simultaneously. Maryland’s military operations disclosure provision, combined with general material facts duties for commercial airport noise, creates overlapping obligations that require careful documentation.
Get a Property-Level Aircraft Noise Report
Before your next Maryland transaction near an airport or military installation, run a report at aircraftnoisereport.com. Essential for one of the most aviation-dense residential markets in the country.
This post is for informational purposes only and does not constitute legal advice. Consult a licensed Maryland real estate attorney for guidance on specific disclosure obligations.