Wow, Williamsburg! Our tour of NYC open houses for September 12 and 13 starts with this sumptuous, mint-condition townhouse. Its 4 bedrooms and 3.5 baths are spread out over three spacious floors, plus a private rear deck and yard. A top-notch makeover perfectly blends the historic roots of the building with a sleek European style, including imported fixtures and tiles. New triple-pane windows, a zoned heat/AC system controlled by Nest, and other modern features make this a super-smart home. Joe Messina at Compass is the seller’s agent.

This Brooklyn Heights 1-bedroom has so much going for it, starting with three exposures for great light and views. There’s also a separate office space for a work-at-home ease, two working fireplaces, a shared garden, in-unit laundry, a king-size bedroom, and parking on-site. It’s located in a lovely and pet-friendly prewar co-op that’s right near Brooklyn Bridge Park. Gregory Rositano and Kyle Gregory at Engel and Volkers are the seller’s agents.

Heading over to Manhattan, this generously sized 2-bedroom is a great deal for anyone looking for a central Midtown home or pied-à-terre. Just one block from Central Park, the formidable apartment features a foyer entry, a large living room with high beamed ceilings, plenty of decorative moldings, and an in-unit washer/dryer. The elegant prewar co-op is pet friendly and offers a courtyard. Listed by Barbara Lawrence at Elegran.

Here’s a great investment play in SoHo. This 2-bed-with-terrace is set in a prewar co-op that allows subletting from day one — a rare feature that makes this a very smart buy. The warm interior features a thoughtful makeover, with a sliding door to the master bedroom, a high-end open kitchen with dishwasher, an in-unit washer/dryer, and a coveted second half-bath. There’s plenty of room on the terrace for alfresco entertaining. Listed by Pat Lehman at Compass.

Our final NYC open house for September 12 and 13 is a whitewashed loft that delivers downtown drama on of the most sought-after streets in Greenwich Village. In addition to its gorgeous industrial era styling, 250 Mercer is a pet-friendly co-op with generous sublet and purchasing rules. This duplex unit offers soaring ceilings, 10-foot-tall windows, a dishwasher in the kitchen, and more than 1,000 square feet of living space. Christopher Au at the Level Group is the seller’s agent.