About this home

Timeless elegance meets modern luxury in this masterfully reimagined, Fully Renovated 6-bedroom, 4.5-bath Classic Custom Colonial. Spanning four expansive levels of finished living space, this Westfield masterpiece showcases unparalleled craftsmanship, exquisite custom millwork, and high-end finishes at every turn.The main level welcomes you with a bright home office, an elegant dining room, and a gourmet Chef's Kitchen that flows seamlessly into a cozy living room anchored by a warm fireplace.Bathed in natural light, the serene sunroom offers a tranquil retreat perfect for morning coffee or afternoon relaxation. Upstairs, the second floor features spacious secondary bedrooms and a luxurious primary suite retreat, complete with his-and-hers walk-in closets and a spa-like bath.The third floor provides additional private bedrooms, offering the perfect layout for guests, au pair living, or a second home office.Incredible functionality awaits in the fully finished lower level, which boasts an open-concept recreation area, a dedicated gym or flex room, a private bedroom, and a full bath. The standout laundry room elevates everyday convenience with custom cabinetry, quartz countertops, and a premium washer and dryer setup. Positioned on a beautifully manicured lot with a detached two-car garage, 555 Mountain Ave offers an unbeatable location for the modern commuter situated less than a mile from vibrant downtown Westfield, premier shopping, fine dining, and the NYC train station.

Facts and features

Schools

• Franklin Elementary School

  elementary · 1-5 · 0.6 mi

  9

• Roosevelt Intermediate School

  middle · 6-8 · 0.8 mi

  7

• Westfield Senior High School

  high · 9-12 · 1.2 mi

  8

• Presbyterian Nursery School & Kindergarten

  elementary · PK-K · 0.5 mi

• Lincoln Early Childhood Center

  elementary · K · 1.5 mi

• Wilson Elementary School

  elementary · 1-5 · 0.4 mi

  9

Price history

• Oct 1, 2026 · Listed$2,295,000
• Oct 1, 2026 · Listed$2,295,000
• Jun 5, 2025 · Sold$1,725,000
• May 27, 2025 · Listing Removed—
• Apr 1, 2025 · Listed$1,300,000
• Jul 3, 1990 · Sold$420,000
• Jun 19, 1987 · Sold$390,000

Tax history

• 2025$21,251 tax · $939,400 assessed
• 2024$20,880 tax · $927,200 assessed
• 2023$20,454 tax · $927,200 assessed
• 2022$20,027 tax · $927,200 assessed
• 2021$20,055 tax · $927,200 assessed
• 2020$20,008 tax · $927,200 assessed
• 2019$19,934 tax · $927,200 assessed
• 2018$23,725 tax · $255,200 assessed

Home value

$1,868,800

• Cotality$1,868,800
• Quantarium$2,247,732
• Collateral Analytics$1,735,000

Where it is