The four-story townhouse at 106 Dupont Street in Greenpoint is nothing to write home about. In fact, it’s straight up boring, and it’d be fair to assume the interior was, too. But the building, which was gut renovated in 2006, actually holds some cool apartments inside. It was separated into three units: a super lofty, top-floor duplex with three bedrooms; a middle floor-through apartment with two bedrooms; and a first-floor, floor-through unit with two bedrooms and a private garden. The listing is marketing this as a good investment for “an end-user who wants to collect great rental income,” as it’s currently occupied by tenants. But they’ll have to cough up a lot of cash first: the property is asking $3.78 million.