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true architectural original in the heart of Upper Montclair, 303 Upper Mountain Avenue is a one-of-a-kind residence where art, design, and exceptional space come together. Set on over half an acre, this distinctive home unfolds across three finished levels, offering 6 bedrooms, a home office, 3.1 baths, and remarkable indoor-outdoor living. Inside, Italian limestone floors, original moldings, dramatic architectural curves, custom built-ins, stained glass, and curated lighting create a home unlike any other. The Living Room is anchored by a working fireplace with a sculptural porcelain surround by renowned ceramic artist Paula Winokur. The expansive kitchen features 40 custom cabinets, granite counters, Monogram appliances, a Bosch 800 Series dishwasher, wine cooler, butler's pantry, and a striking custom sculpture created from materials original to the home. The Primary Suite offers an oversized walk-in closet and spa-like bath with steam shower and jetted tub. There are 2 additional bedrooms on this floor, one currently used as a dressing room (easily converted) and another bath. Soaring ceilings, skylights, a spiral staircase, lofted spaces, and three levels of deck space add to the home's extraordinary character. A 2-car attached garage, circular drive, abundant parking, and mostly fenced .54-acre property complete the offering all moments from Up. Montclair Village, Anderson Park, restaurants, shopping and boutiques, and NYC transportation.
| DAYS ON MARKET | 4 | LAST UPDATED | 9/11/2026 |
|---|---|---|---|
| YEAR BUILT | 0 | COMMUNITY | 100 |
| GARAGE SPACES | 2.0 | COUNTY | ESSEX |
| STATUS | Active | PROPERTY TYPE(S) | Single Family |
| ADDITIONAL DETAILS | |
| AIR | Central Air |
|---|---|
| AIR CONDITIONING | Yes |
| AREA | 100 |
| BASEMENT | Exterior Entry, Unfinished, Yes |
| CONSTRUCTION | Other |
| FIREPLACE | Yes |
| GARAGE | Yes |
| HEAT | Baseboard, Forced Air, Hot Water, Natural Gas |
| PARKING | Garage Door Opener, Attached |
| POOL DESCRIPTION | None |
| TAXES | 35075 |
MORTGAGE CALCULATOR
TOTAL MONTHLY PAYMENT
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All information deemed reliable but not guaranteed. Last date updated: 9/14/26 1:01 PM PDT Source: New Jersey Multiple Listing, Inc.
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