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.
For sale
$1,190,000
646 Science St, Pittsburgh, PA 15210
3beds
3,252sqft
Single Family Residence
Built in 2020
4,530 Square Feet Lot
$-- Zestimate®
$366/sqft
$-- HOA
What's special
Sophisticated finishesMiele stainless dishwasherFront-facing balconyOversized windowsAbundance of natural lightBacklit mirrorsGreat room
- 71 days |
- 999 |
- 41 |
Zillow last checked:
Listing updated:
Listed by:
Catherine Blandi 724-934-3400,
HOWARD HANNA REAL ESTATE SERVICES 724-934-3400
Source: WPMLS,MLS#: 1748570
Originating MLS: West Penn Multi-List
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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
Estimated market value
Not available
Estimated sales range
Not available
Not available
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 |
Source: | ||
| 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 | $1,500 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: Allentown
Nearby schools
GreatSchools rating
- 4/10Pittsburgh Grandview K-5Grades: K-5Distance: 0.2 mi
- 3/10Pittsburgh South Hills 6-8Grades: 6-8Distance: 1.2 mi
- NAPittsburgh ConroyGrades: K-12Distance: 2.4 mi
Schools provided by the listing agent
- District: Pittsburgh
Source: WPMLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
A local agent can set up tours, give advice and negotiate with sellers.
A local lender can help you make sure your offer is ready when you are.
- Pennsylvania
- Allegheny County
- Pittsburgh
- 15210
- Allentown
- 646 Science St





