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Single family home for sale at 646 Science St, Mt Washington, PA 15210 | MLS# 1780702 | Listing updated on 2026-10-24
Photo 1 of Single family home for sale at 646 Science St, Mt Washington, PA 15210 | MLS# 1780702 | Listing updated on 2026-10-24
Photo 2 of Single family home for sale at 646 Science St, Mt Washington, PA 15210 | MLS# 1780702 | Listing updated on 2026-10-24
Photo 3 of Single family home for sale at 646 Science St, Mt Washington, PA 15210 | MLS# 1780702 | Listing updated on 2026-10-24
Photo 4 of Single family home for sale at 646 Science St, Mt Washington, PA 15210 | MLS# 1780702 | Listing updated on 2026-10-24
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$1,090,000

Monthly Est:$5,425

  • Beds Icon3 Beds
  • Beds Icon
    3 Baths
  • Beds Icon3,252sqft

646 Science St, Mt Washington, PA 15210

$5,425/moEst:

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  • Single Family Residence

  • Built in 2020

  • $-- HOA

  • 0.1 acre lot

  • $335/sq.ft

Description

Welcome to 646 Science Street, a striking modern 3-bedroom, 4-bath residence meticulously designed by Cipriani Studios, ideally located in the heart of Mt. Washington. From the moment you enter through the dramatic pivot entry door, the home makes an immediate impression with clean architectural lines, sophisticated finishes, oversized windows, and an abundance of natural light. The first floor features a stunning open-concept layout, highlighted by the gourmet kitchen, great room, and dining area, creating a seamless space ideal for entertaining and everyday living. This level also includes a powder room, access to a large rear deck constructed of low-maintenance materials, and a front-facing balcony, offering multiple outdoor spaces to relax and entertain. Designed for effortless smart living, the home is equipped with Control4 automation, 18 Paradigm in-ceiling speakers, motorized blinds, Ecobee thermostats, and a Vector security system. Fry Reglet trim is thoughtfully utilized throughout to create the illusion of floating floors and showcase the home’s refined modern aesthetic. The chef’s kitchen is a true centerpiece, featuring Calacatta quartz countertops with a waterfall edge, abundant cabinetry, a 42" Sub-Zero French-door refrigerator, 48" Wolf gas range with griddle and pot filler, Wolf wall oven and microwave, and a Miele stainless dishwasher. An adjacent wet bar accented with bold Broadway Black Velvet quartz includes a Marvel professional beverage center and a dual-zoned under-counter wine unit, adding both function and dramatic style. Upstairs, the spacious primary suite is a private retreat featuring floor-to-ceiling windows, a dramatic 18’ x 12’ tiled accent wall, and access to a private balcony. The suite also includes a large walk-in closet with an in-suite washer and dryer. The spa-like primary bath, enhanced by backlit mirrors, offers a heated Kohler soaking tub with bubble massage and a fully customizable 7-spray Kohler digital shower system, controlled by an in-shower digital touchpad. Two additional bedrooms are located on this level, each offering generous closet space and striking feature walls. The hall bath is beautifully appointed with a dual vanity featuring vessel sinks and a single, backlit mirror, providing both style and functionality. The entrance level enhances everyday convenience and flexibility, offering a full bath, an additional laundry area, ample storage, and direct access to the patio. A striking floating staircase with iron cable railings and LED-backlit treads provides architectural continuity throughout the home. Additional highlights include a two-car garage with EV outlet, a Generac generator, and an extraordinary rooftop terrace prepped with water and gas and featuring an integrated Weber gas grill. From this elevated outdoor retreat, enjoy breathtaking panoramic views of the city of Pittsburgh and the surrounding landscape, unforgettable sunsets, and front-row views of the city’s iconic firework displays. A rare opportunity to own a residence that seamlessly blends cutting-edge design, luxury finishes, smart technology, and exceptional indoor-outdoor living.

  • Houzeo last checked: 12 hours ago
  • Listing updated: October 24, 2026 at 5:32 am
  • Listing Provided by: Catherine Blandi (724) 934-3400 DRE #RS212488L | HOWARD HANNA REAL ESTATE SERVICES (724) 934-3400
  • Source: West Penn MLS-PA | MLS#: 1780702 West Penn MLS-PA

Property Details

  • Status

    Active

  • Type

    Single Family Residence

  • No. of Stories

    3

  • County

    Allegheny South County

  • City

    Mt Washington

  • Neighborhood

    --

  • Year Built

    2020

  • HOA Fees

    -

  • Finished Area

    3,252 sqft

  • Lot Size

    0.1 acre lot

  • Basement Area

    - sqft

  • MLS Name

    West Penn MLS

  • MLS Number

    1780702

  • MLS Status

    Active

  • Days on Market

    10

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Location

Facts & Features

Rooms

  • Bedrooms & bathrooms

    Bedrooms: 3

    Bathrooms: 3

  • BonusRoom

    Level: Lower

    Area: 276.00 Square Feet

    Dimensions: 23x12

  • Bedroom3

    Level: Upper

    Area: 120.00 Square Feet

    Dimensions: 12x10

  • Bedroom2

    Level: Upper

    Area: 169.00 Square Feet

    Dimensions: 13x13

  • PrimaryBedroom

    Level: Upper

    Area: 300.00 Square Feet

    Dimensions: 20x15

  • DiningRoom

    Level: Main

    Area: 192.00 Square Feet

    Dimensions: 16x12

  • Kitchen

    Level: Main

    Area: 192.00 Square Feet

    Dimensions: 16x12

  • LivingRoom

    Level: Main

    Area: 672.00 Square Feet

    Dimensions: 32x21

  • BonusRoom

    Level: Main

    Area: 338.00 Square Feet

    Dimensions: 26x13

  • EntryFoyer

    Level: Main

    Area: 180.00 Square Feet

    Dimensions: 15x12

Interior

  • Appliances

    Some Gas Appliances, Convection Oven, Dryer, Dishwasher, Disposal, Microwave, Refrigerator, Stove, Washer

  • Interior Features

    Wet Bar, Kitchen Island, Window Treatments

  • Flooring

    Hardwood, Tile

  • Heating

    Forced Air, Gas

  • Window Features

    Multi Pane, Window Treatments

  • Sewer

    Public Sewer

  • Cooling

    Central Air, Electric

Construction

  • Year Built

    Year Built: 2020

  • Home type

    Single Family Residence

  • Roof

    Other

  • Construction Materials

    Concrete, Steel

  • Architectural Style

    Contemporary, Three Story

  • Property Condition

    Resale

Utilities & Energy

  • Basement

    Walk Out Access

  • Pool Features

    None

  • Parking Features

    Built In, Garage Door Opener

  • Water Source

    Public

  • Security Features

    Security System

Price History

DateEventPrice

10/23/2026

Source: mls_logoWest Penn MLS-PA #1780702

Listed for Sale

$1,090,000 -8.40%

$335/sqft

04/15/2026

Source: mls_logoWest Penn MLS-PA #1748570

Off Market

$1,190,000

$366/sqft

04/15/2026

Source: mls_logoWest Penn MLS-PA #1748570

Listed for Sale

$1,190,000

$366/sqft

Nearby Homes

Based on information from the West Penn Mutli-List, INC through Nov 02, 2026, 02:15PM. Information is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. © 2026 West Penn Multi-List, Inc. All Rights Reserved. 

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