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5547 Walnut Hill Lane

Dallas, TX 75229 · View on map ↓

6Beds
6 + 4Baths
13,800Sqft
$45,000,000
MLS# 21370233

Overview

6 / 6 + 4 / 4
Bed / Bath / Gar
13,800
Sq Ft
2025
Year Built
2.032 acres
Lot Size
19
CDOM
Single Family
Type

Description

Dallas has never seen a home like Casa de Ondas. The award-winning architectural masterpiece, with over 14,000 square feet of interiors, was custom-built and conceptualized over four years, bringing together acclaimed design talent from across the globe. Marking the acclaimed international architecture firm SAOTA’s first Dallas project, this sculptural triumph rises from a verdant two-acre lot within Preston Hollow’s coveted Crespi Estate, an exclusive gated community of just four residences. Its wavy roof, inspired by surrounding tree canopies, creates a striking dialogue between architecture and nature as shifting light casts soft shadows across locally quarried limestone. Past the water lily pond, a soaring pivot door opens to a glassy hallway and dramatic double-volume living space, the heart of the home for everyday living and extraordinary entertaining. It flows to more than 5,000 square feet of covered terraces, a custom pool and spa, and lush gardens, blurring the line between indoors and out. A shimmering double-sided fireplace, sumptuous bar with an 8,000-pound marble island hand-chiseled in Italy, brass-wrapped temperature-controlled wine cellar, and chef’s kitchen with Miele appliances, designer pantry and Taj Mahal slabs elevate every gathering. The lower level reveals a hotel-quality underground speakeasy, second bar, golf simulator with privacy switch-glass views into the four-car collector’s garage, while outdoors a custom pool slide, volleyball and sport courts, outdoor kitchen and fire pit invite endless enjoyment. The main-level primary suite offers an indoor-outdoor shower, solid-stone freestanding tub, fluted fireplace and oversized Poliform closet. An expansive gym with steam room, sauna and massage room completes the wellness experience. Immersed in hand-selected plantings with no neighbor in sight, Casa de Ondas is a once-in-a-lifetime work of art where architecture, nature and extraordinary living move as one.

Mortgage Calculator

$
%
20% · $9,000,000
0%50%
Principal & Interest$227,544(71%)
Property Tax (est. 2%)$75,000(23%)
Homeowner's Insurance (est.)$18,750(6%)
Est. Monthly Payment$321,294/mo
Est. Monthly$321,294

Estimate only — contact a lender for actual rates and terms. Property tax estimate based on 2% of purchase price.

Rooms

Primary Bedroom
18 x 33 / 1
Bedroom
16 x 17 / 2
Bedroom
16 x 17 / 2
Bedroom
16 x 17 / 2
Bedroom
16 x 19 / 2
Living Room
20 x 27 / 1
Kitchen
12 x 25 / 1
Dining Room
19 x 25 / 1
Bonus Room
29 x 29 / B
Bonus Room
19 x 20 / 1
Den
15 x 23 / 1
Exercise Room
22 x 27 / 1
Game Room
20 x 21 / 1
Game Room
20 x 21 / 2
Great Room
19 x 25 / 1
Guest Quarters
13 x 15 / 1
Office
19 x 25 / 1
Sauna
0 x 0 / 1
Utility Room
9 x 12 / 1
Appliances
Built In Gas Range, Built In Coffee Maker, Built In Refrigerator, Convection Oven, Double Oven, Dishwasher, Disposal, Gas Range, Ice Maker, Microwave, Range, Refrigerator, Some Commercial Grade, Tankless Water Heater, Vented Exhaust Fan, Warming Drawer, Wine Cooler
Interior Features
Wet Bar, Built In Features, Chandelier, Decorative Designer Lighting Fixtures, Double Vanity, Dumbwaiter, Eat In Kitchen, High Speed Internet, Kitchen Island, Multiple Master Suites, Open Floorplan, Pantry, Smart Home, Cable Tv, Vaulted Ceilings, Walk In Closets, Wired For Sound
Flooring
Stone
Laundry
Laundry In Utility Room
Window Features
Window Coverings
Fireplaces
2 · Gas, Gas Starter
Heating
Central, Natural Gas
Cooling
Central Air, Electric
Utilities
Sewer Available, Water Available, Cable Available
Architectural Style
Contemporary Modern, Detached
Construction
Frame
Roof
Tar Gravel
Foundation
Pillar Post Pier
Exterior Features
Courtyard, Fire Pit, Lighting, Outdoor Kitchen, Outdoor Living Area, Outdoor Shower, Private Entrance, Private Yard, Sport Court, Uncovered Courtyard
Patio / Porch
Patio, Covered
Pool
Heated, In Ground, Pool
Security
Prewired, Security System Owned, Security System, Carbon Monoxide Detectors, Security Gate, Gated Community, Smoke Detectors, Security Lights
Levels
Two
Stories
2
Garage Spaces
4
Attached Garage
Yes
Covered Spaces
4

Schools

Elementary
Pershing (Dallas ISD)
Middle
Benjamin Franklin (Dallas ISD)
High
Hillcrest (Dallas ISD)

Price & Status History

DateEventPrice
8/31/2026Listed for sale
Source: NTREIS #21370233
$45,000,000

Nearby Properties

Listed by Alex Perry · Allie Beth Allman & Assoc.
Co-listed by Chad Barrett
Source: NTREIS · MLS#: 21370233

Information deemed reliable but not guaranteed. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange (IDX) program of NTREIS. Real estate listings held by brokerage firms other than Sirka.com are marked with the IDX logo and detailed information about them includes the name of the listing brokers.

© 2026 North Texas Real Estate Information Systems, Inc. All Rights Reserved.

6bed
10bath
4car
$45,000,000
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