Highlands at Cranbury Brook

Highlands at Cranbury Brook is the condominium building in Cranbury Brook, the 55+ active-adult community Toll Brothers built in Plainsboro Township, Middlesex County. Listing remarks and the builder both use the fuller name, The Highlands at Cranbury Brook, even though the MLS subdivision tag shortens it to Highlands at Cranbury. The address is 100 Middlesex Boulevard, Plainsboro, NJ 08536, and this is one building rather than a street of homes: three floors, three elevators, flats reached from interior corridors. If you are weighing it against the detached side of the same community, our Cranbury Brook page covers the single-level villas. This page is about the condominium: what has closed, what the association charges, what the building and the clubhouse actually offer, and where a $330,000 flat sits in a township whose overall median is around $715,000.

The homes

Every home in our BrightMLS records here is a two-bedroom, two-full-bath flat, and sizes run from 1,164 to 1,455 square feet. The 1,455-square-foot plan is described in listing remarks as the largest model in the building, and it adds a den or office off the main living space, which is how a two-bedroom home here ends up with a third room. Interiors are what a 2007 and 2008 Toll Brothers build suggests: 42-inch cabinetry, granite or Corian counters, hardwood through the entry, kitchen, dining and living rooms, walk-in closets in both bedrooms, an en-suite bath off the primary with a corner soaking tub and a separate stall shower, and a stacked washer and dryer inside the unit rather than a shared laundry room. Most homes have a balcony, or a patio on the first floor, and the ones buyers ask about face the interior courtyard. The third floor is marketed as the penthouse level and top-floor units are advertised on that basis, though our own closed-sale record is too thin to put a number on the difference. There are no garages: every record we have for this building shows zero garage spaces, so parking is outside, and which elevator a unit sits near is a real difference between otherwise identical homes.

Setting

The building sits on Middlesex Boulevard in Plainsboro Township, with a Plainsboro 08536 address despite the Cranbury Brook name. Cranbury Township is a separate municipality several miles away, and a buyer searching by town will not find this building under Cranbury. Listing remarks here consistently describe shopping, restaurants and the library as within walking distance, with Princeton and the commuter train a short drive out. Princeton Junction station on the NJ Transit Northeast Corridor line handles the run toward Midtown Manhattan, which at this address usually matters more for children and grandchildren visiting than for a daily commute, and the Route 1 corridor covers everyday errands north and south. Homes fall in the West Windsor-Plainsboro Regional School District. That is the headline on most Plainsboro pages and it is not the point here: this is age-restricted housing, so the district shapes the tax bill and supports resale demand rather than deciding who moves in.

Amenities and lifestyle

The building carries three elevators and a community gathering room of its own, and residents also use the Cranbury Brook clubhouse, which listing remarks describe as having a seasonal outdoor pool, an exercise room, and meeting, card, game and billiard rooms. That is the practical difference between this and an ordinary condominium conversion: single-floor living with an elevator to your door, a social calendar attached to it, and grounds somebody else maintains. Association dues on the most recent closings ran $508 to $532 a month, with older records in the building between $471 and $543, so budget in that band and ask the association for the current figure and what the reserve study says. The age restriction is the standard active-adult rule, at least one resident 55 or older. The community documents govern who else may live in the home, so ask for the bylaws before you go under contract rather than after.

Market position

Four homes closed in the 24 months to September 2026, from $310homes, so this is the accessible end of the local market rather than a premium tier. The pace is genuinely quick when the price is right: two of the five went under contract in three days or less, and three of the five closed above the seller original asking price. The other two closed after price cuts, and the ceiling is easy to see. One unit came out at $349,000 in September 2025 and expired unsold after 227 days on market, while another that started at $349,000 cut to $330,000 and sold. Read those together and the message is that under about $340,000 this building moves, and above it, it sits. Ignore any sale-to-list ratio you see on closed records here, because the closed list price in the data is the closing price; the original asking prices are the honest comparison. Turnover is thin at five sales in two years, so pricing rests on a handful of true comparables and on unit-level differences: floor, view, square footage, and how recently the kitchen and baths were redone.