Newly completed, The Onyx is among the most significant residential offerings ever brought to market in Westlake Hills. Defined by rare elevation, sweeping downtown Austin views, and exceptional execution, this architectural estate delivers scale, presence, and privacy at a level few homes achieve.
A secure, gated, and privately walled arrival sets the tone for the residence. Spanning approximately 11,000 square feet on nearly an acre, the home was built by Paradisa Homes with an uncompromising focus on proportion, durability, and enduring quality. Walls of glass frame the living environment throughout, including a custom Fleetwood Edge sliding system—the largest of its kind—opening to uninterrupted city and Hill Country views.
Interior volumes are striking, with ceilings reaching up to 18 feet and light moving intentionally throughout the day. The kitchen is anchored by a 12-foot Milano marble island with Gaggenau appliances, complemented by a fully equipped catering kitchen with Thermador appliances and a glass-enclosed wine vault with approximately 600-bottle capacity.
An entire level is dedicated to the owner’s suite, featuring a private lounge, office, dual walk-in closets, safe room, and a spa-like bath with soaking tub, oversized rain shower, and floor-to-ceiling glass framing downtown views.
Additional amenities include a private theater, fitness studio with steam shower, library, full bar opening to the pool, elevator, and a fourth-floor Sky Parlor designed for indoor-outdoor entertaining. Outdoor living includes a resort-style pool and spa, cabana with swim-up bar, outdoor kitchen, pool bath, and expansive lawns. A detached guest house offers a kitchen, living space, and en-suite bedroom. Garage parking accommodates 6–12 vehicles with lift capability. Located in Eanes ISD and minutes from downtown Austin.
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Listing Snapshot
Price
$15,900,000
Days On Site
29 Days
Bedrooms
7
Inside Area (SqFt)
10,912 sqft
Total Baths
11
Full Baths
8
Partial Baths
3
Lot Size
0.89 Acres
Year Built
2025
MLS® Number
8453325
Status
Active
Property Tax
$61,774.77
HOA/Condo/Coop Fees
N/A
Sq Ft Source
Public Records
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Recent Activity
4 weeks ago
Listing first seen on site
4 weeks ago
Listing updated with changes from the MLS®
General Features
Acres
0.89
Attached Garage
Yes
Direction Faces
Northwest
Disclosures
Seller Disclosure
Foundation
Slab
Garage
Yes
Garage Spaces
6
Levels
Three Or More
Parking
AttachedDetachedGarage
Parking Spaces
12
Property Condition
New Construction
Property Sub Type
Single Family Residence
Security
Prewired
Sewer
Aerobic Septic
Special Circumstances
Standard
Utilities
Electricity AvailablePhone Available
Water Source
Public
Interior Features
Appliances
Built-In RefrigeratorDishwasherDisposalFreezerGas RangeIce MakerInstant Hot WaterMicrowaveDouble OvenRangeWine Cooler
Listing courtesy of Kuper Sotheby's Int'l Realty Bridget@BridgetRamey.com
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by MLS GRID. The Austin Board of REALTORS®, ACTRIS and their affiliates provide the MLS and all content therein "AS IS" and without any warranty, express or implied.
Last checked - 2026-02-27 12:38 AM CST
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Neighborhood & Commute
Source: Walkscore
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