If you're listing a home in Sterling this year, which piece of paper actually carries your legal obligation to mention Dulles airport noise: the county zoning file, your HOA's resale packet, or the state disclosure form you sign at the closing table? The honest answer is that the correct piece of paper has changed twice in under three years, and the version currently in force asks less of you as a seller and more of your buyer than either side probably assumes.
That matters because most of what's written online about Sterling and Dulles noise disclosure is frozen at one step of a three-step timeline. Get the wrong step, and you either skip a real obligation or hand your buyer a form that reads like it settles the question when it doesn't.
Three Versions of the Same Rule
January 17, 2023. The Loudoun County Board of Supervisors adopted changes to the Airport Impact Overlay District, the zoning designation that flags properties near Washington Dulles International Airport where aircraft noise is expected at specified levels. The revised map affected roughly 59,000 properties. The county drew three tiers: no new residential development is allowed in the loudest zone (Ldn 65 and above), new homes built in the Ldn 60-65 zone need acoustic treatment plus a developer disclosure and an avigation easement, and a newly added one-mile buffer beyond that required a written disclosure notice with every sale, new or resale.
July 1, 2024. That last piece, the resale disclosure, ran into a new state law. Virginia Code 15.2-983.1 prohibits a locality from enforcing a mandatory disclosure on anyone who lists or sells residential property after the initial developer sale. Loudoun's Board of Supervisors voted on June 18, 2024, to comply, partially suspending enforcement of the resale notice while keeping the developer disclosure requirement in place for brand-new homes sold within the district. If you bought a resale in Sterling anytime after that date, no county ordinance required your seller to hand you a noise notice, even if your address sat inside the buffer.
July 1, 2025. The obligation resurfaced, just somewhere else. The 2025 Virginia Residential Property Disclosure Act, enacted that March, added language to the statewide Residential Property Disclosure Statement, the form nearly every Virginia seller signs. It tells buyers they need to exercise "due diligence" to determine whether a property sits within a public use airport's aircraft noise zone. The law also directed the Virginia Department of Aviation to build a noise zone map resource for the Real Estate Board. As of today, this is the operative mechanism for Sterling closings, and it's a different kind of mechanism than the one it replaced.
Where the Obligation Lives Today
The pre-2024 county notice was specific. It named the actual noise tier for the actual parcel, using language along the lines of a notice stating the property sits within a defined Ldn range and close to a named airport. A seller in the one-mile buffer had to say so, in writing, about their own house.
The 2025 state language is generic. It's boilerplate on a statewide form, telling every Virginia buyer, regardless of whether their specific address is anywhere near an airport, that they're responsible for checking. The seller's paperwork burden went down. The buyer's research burden went up. Nobody eliminated the noise. They moved who has to go looking for it.
That's the piece most Sterling sellers and their buyers haven't caught up to. A seller can be in full compliance with the current form language and still not have told a buyer anything specific about their own house.
What This Means If You're Selling in Sugarland Run, Cascades, or Countryside
If your home sits in one of Sterling's established communities inside zip codes 20164 or 20165, the county's zoning map, not the state form, is still the only place that tells you whether your specific parcel falls in a noise tier. The state disclosure statement won't do that work for you or your buyer. Loudoun County maintains an interactive mapping system where you can look up a parcel directly.
Existing homeowners associations aren't required to mention airport noise in resale disclosure packages, but they're permitted to include a voluntary statement if the community's declaration already references it. If you're in an HOA-governed section of Sterling, it's worth asking your management company whether that language exists in your packet before you assume the state form covers it.
None of this changes what a buyer will hear standing in your driveway during a showing. It changes only what's written down and who's responsible for writing it. A seller who volunteers the specific tier information, when it applies, is offering more than the law currently requires, and that tends to head off the kind of post-closing frustration that shows up as a call to a real estate attorney rather than a five-star review.
What This Means If You're Buying
The due diligence language on the state form is a prompt, not an answer. If you're under contract on a home in Sterling, particularly anything near Route 28 or the airport's approach paths, the practical move is to check the county's AIOD map yourself rather than take the absence of a specific notice as evidence the house is outside a noise tier. The form's generic wording is compliant either way.
New construction is a partial exception. Developers selling a first-time home within the Ldn 60-65 zone still have to disclose it, arrange acoustic treatment, and record an avigation easement, because that requirement was never part of the resale enforcement Loudoun suspended in 2024. If you're buying new construction in a Sterling development like Kincora, that disclosure obligation should still show up in your paperwork from the builder.
The Timing Argument
Sterling's resale market gives buyers more room to do this kind of homework than it did a year ago, even if it doesn't feel that way in the moment. Over the three months ending May 2026, homes in Sterling sold after a median 24 days on the market, up from 19 days the year before, and the typical home still drew about three offers, according to Redfin. Longer market time cuts both ways. It gives a motivated buyer a few extra days to pull the county map and confirm a parcel's noise tier before writing an offer, but it doesn't change the fact that a seller's disclosure form won't do that confirming for them.
Quick Answers for Sterling Closings
Does this mean the noise disclosure went away for resales? No. It moved from a county-enforced, parcel-specific notice to a generic due diligence line on the statewide disclosure form, effective July 1, 2025.
How do I find out if my specific address is inside the AIOD? Loudoun County's online mapping system lets you search a parcel directly rather than rely on the general zone descriptions.
Does my HOA have to tell me? Only new developments are required to include noise language in their declarations. Existing HOAs in communities like Sugarland Run or Cascades may include it voluntarily, but it isn't mandatory, so it's worth asking directly.
Is new construction handled differently? Yes. Developer disclosure, acoustic treatment, and easement requirements for new homes in the Ldn 60-65 zone were never affected by the 2024 resale suspension and remain in force.
If you're weighing a sale or purchase in Sterling and want someone to walk the actual parcel-level details with you rather than the generic version, Anne C. Baumgartel can go through what applies to your specific address alongside a current home valuation. Request a free consultation and home valuation to start the conversation before you're staring at the disclosure form for the first time.
