5547 Walnut Hill Lane Dallas, TX 75229
- Dallas County
- Dallas TX
- 75229
- Local Area: Crespi Estates
Property Overview
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.
Featured spaces
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Property highlights
Year Built 2025
School District Dallas Isd
HOA No HOA
Pool Pool
Parking 4-car garage, 4 covered
Gated Gated community
Pond Private pond
Architecture ContemporaryModern,Detached
Acreage Estate 2.03 acres
Full Property Details
Property Details
Quick Details
- Price $45,000,000
- Status Active
- Bedrooms 6
- Bathrooms 10
- Square Feet 13,800 Sq Ft
- Lot Size 2.03 acres
- Lot Size Sq Ft 88,514
- Year Built 2025
- Price / Sq Ft $3261 / Sq Ft
- MLS # 21370233
Overview
- Property Type Residential
- Property Subtype Single Family Residence
- County Dallas
- Subdivision Crespi Estates
- Days on Market 19
Home Details
- Full Baths 6
- Half Baths 4
- Foundation Pillar Post Pier
- Roof Tar Gravel
- Flooring Stone
- Heating Central, Natural Gas
- Cooling Central Air, Electric
Kitchen & Interior
- 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
- Fireplaces 2
- Fireplace Features Gas, Gas Starter
Lot & Exterior
- Lot Features Acreage, Back Yard, Interior Lot, Lawn, Landscaped, Pond On Lot, Many Trees, Sprinkler System
- 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
Parking
- Parking Garage, Garage Door Opener, Garage Faces Side
- Garage Spaces 4
- Covered Parking 4
- Attached Garage Yes
Utilities
- Utilities Sewer Available, Water Available, Cable Available
- Water Public
- Sewer Public Sewer
Schools
- Elementary Pershing — Dallas ISD
- Middle Benjamin Franklin — Dallas ISD
- High Hillcrest — Dallas ISD
Listing Information
- MLS Board NTREIS
- List Date 09/04/2026
- Source Updated 09/01/2026
- Last Updated 10/08/2026
- Virtual Tour Available
Property Tax & CAD Valuation for 5547 Walnut Hill Lane
Dallas Central Appraisal District records for 5547 Walnut Hill Lane, Dallas, TX 75229 show a CAD market value of $15,506,830 and a net appraised value of $15,506,830. CAD values are used for property-tax purposes and may differ from the property's current list price or eventual sale price.
TAX INFO FOR NORMAL PEOPLE
A plain-English look at Dallas Central Appraisal District property-tax and appraisal records for 5547 Walnut Hill Lane, Dallas, TX 75229, including CAD market value, appraised value, exemptions, taxing entities, improvement records, and value history.
View Official Dallas Central Appraisal District Property Record
1. CAD Big Picture: Land + Improvements = Market Value
This shows what the CAD market value is made of. Appraisal districts usually separate value between the land and the improvements. Improvements may include the home, garages, shops, patios, pools, decks, storage, and other structures.
Land Value $6,096,000 + Improvement Value $9,410,830 = CAD Market Value $15,506,830
2. Improvement Details: Size, Type & Assessed Value
This is a breakdown of the improvements CAD has listed for the property and the square footage or area connected to those records. CAD improvement records may include the main living area, garages, shops, decks, patios, pools, storage, or other site improvements when available.
MAIN DWELLING
Value: $9,410,830 Total Area: 14983 Sqft Living Area: 12823 Sqft
| Additional Feature / Structure | Type / Details | Area / Quantity |
|---|---|---|
| CABANA | — | 1,170 Sqft |
| UNFINISHED SPACE | — | 481 Sqft |
| BASEMENT | — | 990 Sqft |
| OUTDOOR LIVING AREA | — | 1,113 Sqft |
| DECK | — | 396 Sqft |
| ROOM ADDITION | — | 176 Sqft |
| ATTACHED GARAGE | — | 1,320 Sqft |
| POOL | — | 1 pool |
3. Current Tax Exemptions & Statutory Limitations
Property tax bills reflect two distinct types of CAD adjustments: local taxing jurisdiction exemptions (which reduce taxable value below appraised value) and statutory appraisal limitations (which limit the annual growth of appraised value itself). Each taxing entity establishes its own exemption amounts and tax rates.
No standard exemptions or CAD reductions were detected in the current record.
Each taxing jurisdiction may apply its own exemptions, limitations, and taxable-value adjustments. The figures shown reflect the current CAD record. Specific exemption details are displayed when available from the source. A buyer’s exemptions and future tax obligations may differ.
4. Value After CAD Reductions
This is where CAD reductions, exemptions, limitations, or special-use valuation may affect the value used for tax calculations.
CAD Market Value $15,506,830 − All Current CAD Reductions $0 = Current Taxed Starting Point $15,506,830
This reflects the CAD net appraised value after current CAD reductions. Individual taxing units may use different taxable values when exemptions apply.
5. Who Taxes It?
These are the local entities included in the current CAD/tax estimate. A property tax bill can include a city, county, school district, municipal utility district, public improvement district, or other special district. Each entity may use its own taxable value, rate, and exemption treatment.
| Entity | Taxable Value | Rate (per $100) | Est. Tax (No Ex.) | Savings | Est. Tax (Current) |
|---|---|---|---|---|---|
|
City
DALLAS |
$15,506,830 | 0.6988 | $108,362 | — | $108,362 |
|
School District
DALLAS ISD |
$15,506,830 | 0.9938 | $154,112 | — | $154,112 |
|
County
DALLAS COUNTY |
$15,506,830 | 0.2155 | $33,417 | — | $33,417 |
|
College
DALLAS COLLEGE |
$15,506,830 | 0.1066 | $16,526 | — | $16,526 |
|
Hospital District
PARKLAND HOSPITAL |
$15,506,830 | 0.2120 | $32,874 | — | $32,874 |
Each taxing jurisdiction may apply its own exemptions, limitations, and taxable-value adjustments. The figures shown reflect the current CAD record. Specific exemption details are displayed when available from the source. A buyer's exemptions and future tax obligations may differ.
6. Estimated Tax Bottom Line
Est. Taxes (No Exemptions) $345,292 − Est. Tax Reductions / Savings — = Est. Taxes (With Current Exemptions) $345,292
The current CAD record does not establish an exemption tax savings calculation. A buyer’s future tax bill may differ.
7. CAD Values Over Time
YOY Change reflects the change in CAD Market Value from the prior appraisal year. Taxed / Appraised reflects the CAD net appraised value after CAD reductions, or the certified capped appraisal value where jurisdictions differ. Individual taxing units may use different taxable values when exemptions apply.
| Year | Land | Impr. | Market | Taxed / Appraised | YOY Change |
|---|---|---|---|---|---|
| 2021 | $3,149,910 | — | $3,149,910 | — | — |
| 2022 | $3,860,800 | — | $3,860,800 | — | +$710,890 / +22.57% |
| 2023 | $4,368,800 | $150,000 | $4,518,800 | — | +$658,000 / +17.04% |
| 2024 | $4,368,800 | $3,752,460 | $8,121,260 | — | +$3,602,460 / +79.72% |
| 2025 | $5,080,000 | $8,605,350 | $13,685,350 | — | +$5,564,090 / +68.51% |
| 2026 | $6,096,000 | $9,410,830 | $15,506,830 | — | +$1,821,480 / +13.31% |
8. List Price vs CAD Value
The current list price and the county’s CAD market value are not the same thing. CAD market value is used for property-tax context and may lag the open market, reflect prior protests, exemptions, caps, agricultural or special-use treatment, or other appraisal district methods.
How does the list price compare with the CAD value?
CAD values are appraisal-district values used for property-tax purposes and can differ from current asking prices and eventual sale prices.
Current List Price $45,000,000 − Current CAD Market Value $15,506,830 = Over CAD Value +$29,493,170 (+190.2%)
A sale price can become part of the appraisal district’s future evidence. A buyer’s future taxable value and tax bill may change after purchase, especially if exemptions, caps, or special-use valuation change.
For tax planning, buyers should confirm future taxable value, exemptions, and special-use treatment with the appraisal district, tax office, lender, CPA, or other qualified advisor.
LIFE AROUND CRESPI ESTATES
A curated look at local favorites, everyday stops, and lifestyle context near this property.