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.
For sale
$45,000,000
5547 Walnut Hill Ln, Dallas, TX 75229
6beds
13,800sqft
Single Family Residence
Built in 2025
2.03 Acres Lot
$-- Zestimate®
$3,261/sqft
$-- HOA
What's special
Verdant two-acre lotFluted fireplaceShimmering double-sided fireplaceWater lily pondOutdoor kitchenGlassy hallwayIndoor-outdoor shower
- 1 day
- 3,147
- 240
Likely to sell faster than
Zillow last checked:
Listing updated:
Listed by:
Alex Perry 0539273 214-926-0158,
Allie Beth Allman & Assoc. 214-521-7355,
Chad Barrett 0619458 214-714-7034,
Allie Beth Allman & Assoc.
Source: NTREIS,MLS#: 21370233
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 6
- Bathrooms: 10
- Full bathrooms: 6
- 1/2 bathrooms: 4
Primary bedroom
- Features: Closet Cabinetry, Dual Sinks, Double Vanity, En Suite Bathroom, Fireplace, Garden Tub/Roman Tub, Sitting Area in Primary, Separate Shower, Steam Shower, Walk-In Closet(s)
- Level: First
- Dimensions: 18 x 33
Bedroom
- Features: Closet Cabinetry, En Suite Bathroom, Walk-In Closet(s)
- Level: Second
- Dimensions: 16 x 17
Bedroom
- Features: Closet Cabinetry, En Suite Bathroom, Walk-In Closet(s)
- Level: Second
- Dimensions: 16 x 19
Bedroom
- Features: Closet Cabinetry, En Suite Bathroom, Walk-In Closet(s)
- Level: Second
- Dimensions: 16 x 17
Bedroom
- Features: Closet Cabinetry, En Suite Bathroom, Walk-In Closet(s)
- Level: Second
- Dimensions: 16 x 17
Bonus room
- Level: First
- Dimensions: 19 x 20
Bonus room
- Level: Basement
- Dimensions: 29 x 29
Den
- Level: First
- Dimensions: 15 x 23
Dining room
- Features: Fireplace
- Level: First
- Dimensions: 19 x 25
Exercise room
- Level: First
- Dimensions: 22 x 27
Game room
- Level: Second
- Dimensions: 20 x 21
Game room
- Level: First
- Dimensions: 20 x 21
Great room
- Level: First
- Dimensions: 19 x 25
Other
- Features: En Suite Bathroom, Walk-In Closet(s)
- Level: First
- Dimensions: 13 x 15
Kitchen
- Features: Built-in Features, Butler's Pantry, Dual Sinks, Eat-in Kitchen, Kitchen Island, Pot Filler, Stone Counters, Sink, Walk-In Pantry
- Level: First
- Dimensions: 12 x 25
Living room
- Level: First
- Dimensions: 20 x 27
Office
- Level: First
- Dimensions: 19 x 25
Sauna
- Level: First
- Dimensions: 0 x 0
Utility room
- Features: Built-in Features, Utility Room
- Level: First
- Dimensions: 9 x 12
Heating
- Central, Natural Gas
Cooling
- Central Air, Electric
Appliances
- Included: 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
- Laundry: Laundry in Utility Room
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 Ceiling(s), Walk-In Closet(s), Wired for Sound
- Flooring: Stone
- Windows: Window Coverings
- Has basement: Yes
- Number of fireplaces: 2
- Fireplace features: Gas, Gas Starter
Interior area
- Total interior livable area: 13,800 sqft
Video & virtual tour
Property
Parking
- Total spaces: 4
- Parking features: Garage, Garage Door Opener, Garage Faces Side
- Attached garage spaces: 4
Features
- Levels: Two
- Stories: 2
- Patio & porch: Patio, Covered
- Exterior features: Courtyard, Fire Pit, Lighting, Outdoor Kitchen, Outdoor Living Area, Outdoor Shower, Private Entrance, Private Yard, Sport Court, Uncovered Courtyard
- Pool features: Heated, In Ground, Pool
Lot
- Size: 2.03 Acres
- Features: Acreage, Back Yard, Interior Lot, Lawn, Landscaped, Pond on Lot, Many Trees, Sprinkler System
Details
- Additional structures: Outdoor Kitchen, Other
- Parcel number: 005516000001D0000
- Other equipment: Generator
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary/Modern,Detached
- Property subtype: Single Family Residence
Materials
- Frame
- Foundation: Pillar/Post/Pier
- Roof: Tar/Gravel
Condition
- Resale
- Year built: 2025
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Sewer Available, Water Available, Cable Available
Community & HOA
Community
- Features: Gated
- Security: Prewired, Security System Owned, Security System, Carbon Monoxide Detector(s), Security Gate, Gated Community, Smoke Detector(s), Security Lights
- Subdivision: Crespi Estates
HOA
- Has HOA: No
Location
- Region: Dallas
Financial & listing details
- Price per square foot: $3,261/sqft
- Tax assessed value: $13,685,350
- Annual tax amount: $304,733
- Date on market: 8/31/2026
- Cumulative days on market: 2 days
- Listing terms: Cash,Conventional
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 8/31/2026 | Listed for sale | $45,000,000$3,261/sqft |
Source: NTREIS #21370233 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $304,733 +67.9% | $13,685,350 +68.5% |
| 2024 | $181,513 +75% | $8,121,260 +79.7% |
| 2023 | $103,697 +7% | $4,518,800 +17% |
| 2022 | $96,921 +16.6% | $3,860,800 +22.6% |
| 2021 | $83,094 -2.8% | $3,149,910 |
| 2020 | $85,453 | $3,149,910 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.Climate risks
Neighborhood: 75229
Nearby schools
Schools provided by the listing agent
- Elementary: Pershing
- Middle: Benjamin Franklin
- High: Hillcrest
- District: Dallas ISD
Source: NTREIS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
