646 Science St, Pittsburgh, PA 15210
What's special
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.
- 182 days
- 1,419
- 81
Travel times
Living Room
Kitchen
Primary Bedroom
Zillow last checked:
Listing updated:
Catherine Blandi 724-934-3400,
HOWARD HANNA REAL ESTATE SERVICES 724-934-3400
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 3
- Full bathrooms: 3
Heating
- Forced Air, Gas
Cooling
- Central Air, Electric
Appliances
- Included: Some Gas Appliances, Convection Oven, Dryer, Dishwasher, Disposal, Microwave, Refrigerator, Stove, Washer
Features
- Wet Bar, Kitchen Island, Window Treatments
- Flooring: Hardwood, Tile
- Windows: Multi Pane, Window Treatments
- Basement: Walk-Out Access
- Number of fireplaces: 2
Interior area
- Total structure area: 3,252
- Total interior livable area: 3,252 sqft
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Built In, Garage Door Opener
- Has attached garage: Yes
Features
- Levels: Three Or More
- Stories: 3
- Pool features: None
Lot
- Size: 4,530 Square Feet
- Dimensions: 0.104
Details
- Parcel number: 0003N00220000000
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary,Three Story
- Property subtype: Single Family Residence
Materials
- Concrete, Steel
- Roof: Other
Condition
- Resale
- Year built: 2020
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
Community & HOA
Community
- Security: Security System
Location
- Region: Pittsburgh
Financial & listing details
- Price per square foot: $366/sqft
- Tax assessed value: $537,400
- Annual tax amount: $13,295
- Date on market: 4/15/2026
Price history
| Date | Event | Price |
|---|---|---|
| 4/15/2026 | Listed for sale | $1,190,000$366/sqft |
Source: | ||
| 10/13/2025 | Listing removed | $1,190,000$366/sqft |
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| 9/30/2025 | Listed for sale | $1,190,000-0.8%$366/sqft |
Source: | ||
| 9/20/2025 | Listing removed | $1,199,999$369/sqft |
Source: | ||
| 6/18/2025 | Price change | $1,199,999-5.9%$369/sqft |
Source: | ||
| 4/3/2025 | Listed for sale | $1,275,000-8.3%$392/sqft |
Source: | ||
| 10/7/2024 | Listing removed | $1,390,000$427/sqft |
Source: | ||
| 9/23/2024 | Listed for sale | $1,390,000$427/sqft |
Source: | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $13,226 +6.8% | $537,400 |
| 2024 | $12,382 +387.1% | $537,400 |
| 2023 | $2,542 | $537,400 |
| 2022 | $2,542 | $537,400 |
| 2021 | $2,542 +20994.6% | $537,400 +20569.2% |
| 2020 | $12 -2% | $2,600 |
| 2019 | $12 -79.1% | $2,600 |
| 2018 | $59 +73.3% | $2,600 +73.3% |
| 2017 | $34 +378.2% | $1,500 |
| 2016 | $7 | $1,500 |
Monthly payment
Estimated market value
Not available
Estimated sales range
Not available
Not available
Climate risks
Explore flood, wildfire, and other predictive climate risk information for this property on First Street®️.