The home seller has the duty to disclose any known defects of which they are aware. If the seller is not sure whether or not to disclose something, then they should do so. If a buyer finds out after the fact that the seller did not disclose a material fact that would have influenced the buyer's decision to purchase, the buyer may be able to sue the seller, so it is always best to disclose!
Best of luck,
You must disclose any known material fact when it comes to a home or property being sold. That includes the surrounding area of the subject property. A good rule of thumb is "when in doubt, disclose!" Good luck!
If your home is part of an association and the association is suing the builder for repairs of defects, or if you are suing your builder for defects, that should be disclosed too, as this will impact the ability of a buyer to get a loan.