Houses
This New Modern Mansion in Dallas’s Preston Hollow Has a Custom Pool and 11,858 Square Feet — Listed at $6,695,000
A contemporary house on Walnut Hill Lane in Dallas, Texas, is listed at $6,695,000 and marketed as “Modern Luxury in Preston Hollow.” Zillow’s headline shows 5 bedrooms, 7 bathrooms and 11,858 square feet. Facts & Features break the baths down as six full and one half. The lot is listed at 0.96 acres; the marketing text calls it a “1-Acre Lot.” We are reporting both figures rather than rounding the lot on our own.
Zillow labels the listing New construction, and Facts & Features say Under Construction. The year built is shown as 2024. It appeared in active for-sale results, with no under-contract label, Treat it as listed for sale, and treat construction as unfinished until you walk the house. After 6 days on Zillow it had 1,137 views and 154 saves. The details section also reports 69 cumulative days on market — not the same as the site-age counter.
Quick Look: The Listing Details
| Address | 4625 Walnut Hill Ln, Dallas, TX 75229 |
| List price | $6,695,000 |
| Status | Listed for sale; Zillow also says New construction / Under Construction |
| Year built | 2024, per Zillow |
| Bedrooms | 5 |
| Bathrooms | 7 (6 full, 1 half), per Zillow |
| Interior | 11,858 sq ft |
| Lot | 0.96 acres on Zillow; the description says a 1-acre lot |
| Garage | 5-car, per the listing, with an EV charger |
| HOA | Facts & Features: No |
| Zillow activity | 1,137 views, 154 saves after 6 days; also 69 cumulative days on market |
| Taxes shown | Assessed value $8,023,830; annual tax amount $170,086 |
A Modern House Behind Trees in Preston Hollow
The listing pitches “ultimate privacy” from a tall aluminum fence and 100 mature trees in Preston Hollow (Dallas ZIP 75229). Outdoors, it claims a custom pool with a spa, granite decking, a fully equipped outdoor kitchen, and a granite-paved driveway to a five-car garage with aluminum-glass doors, metallic epoxy floors and an EV charger.
Inside: High Ceilings, Glass and a Media Room
The description opens with soaring 12-to-24-foot ceilings and “elegant marble and premium hardwood floors.” The gallery shows a double-height great room, a long modern kitchen, a dining area beside a floating stair, and glass walls toward the rear yard. A 6-by-9-foot ceramic pivot entry door is called out as a signature detail, along with energy-efficient lighting, European cabinetry and Thermador appliances.
For entertaining, the listing describes a media room with an 8K 3D laser projector and Scandinavian recliners, plus a game room with a bar, and mentions 4K security cameras. Those systems should be demonstrated, not assumed from the brochure.
The master suite is said to include a large sauna. Gallery photos show a primary bedroom, a long vanity, and a bath with a freestanding tub, a glass shower and a glass-enclosed sauna looking onto the garden.
New Construction — and Why the Timeline Still Matters
A 2024 year built and an “Under Construction” label can both be true if punch-list items remain or a final certificate of occupancy has not been issued. We are not going to guess. Ask for the schedule, remaining work, warranties and occupancy approvals before treating the house as complete. Finished-looking photos are not a substitute for inspection.
Price and Days on Market
The current asking price is $6,695,000, shown as listed on Nov. 7, 2026 under NTREIS #21430668. Zillow’s price history also shows earlier listings of the address: removed on Nov. 5, 2026 at $6,695,000 (MLS #21375346); a price change to $6,695,000 on Sept. 8, 2026; listed at $6,250,000 on Sept. 2, 2026; and removed on July 2, 2026 at $6,499,000 (MLS #21155595). That helps explain 6 days on this posting versus 69 cumulative days on the market. No Zestimate was available.
Estimated Jumbo Mortgage Payment (Illustration Only)
Financing this purchase would be a jumbo loan. For 2026, the FHFA baseline conforming loan limit for a one-unit home is $832,750. Published summaries of the FHFA county file state that no Texas county is a high-cost exception, so that baseline is the usual jumbo threshold in Dallas — confirm the current FHFA figure for Dallas County if you are financing.
Assumptions used in this example
This is an illustration, not a quote. We used a purchase price of $6,695,000; a conventional 20% down payment of $1,339,000; a loan of $5,356,000; a 30-year fixed term; and an example rate of 7.11% — the Freddie Mac Primary Mortgage Market Survey average for the week of Nov. 12, 2026, for conventional conforming purchase loans with 20% down and excellent credit. Jumbo loans are priced separately, and lenders often want strong credit, reserves and a larger down payment on a house still under construction. Do not treat 7.11% as an offer.
What that example comes to
Under those assumptions, principal and interest would be about $36,000 a month. Adding the annual tax amount shown on Zillow — $170,086, or about $14,175 a month — would bring a rough principal-interest-and-tax sketch to about $50,175 a month, still before insurance, which we are not estimating.
Property Taxes in Texas — and This Dallas Listing
Texas has no state personal income tax, and local property taxes do much of the work of funding schools and city services. Bills vary by jurisdiction and can move after a sale or a new appraisal. Homestead exemptions may apply to a primary residence; we are not assuming this house qualifies.
Zillow shows a tax assessed value of $8,023,830 and an annual tax amount of $170,086. The public tax history lists the same $170,086 for 2025, then $109,981 for 2024 and $24,233 for 2023. The assessed value on the listing is higher than the $6,695,000 asking price. Ask the Dallas Central Appraisal District and the agent how the appraisal was set and how a sale at this price might affect next year’s bill.
Luxury Homeowners Insurance
An 11,858-square-foot modern house, with a custom pool and spa, extensive glass, a sauna and high-end systems, usually needs a high-value homeowners policy, not a standard online estimate. Insurers will want a replacement-cost appraisal, construction details, and a clear account of anything still unfinished. In North Texas, wind and hail deductibles are a routine part of the conversation. We are not publishing a premium for this address. Get written quotes, and ask whether a house labeled under construction has special binding requirements.
Cost of Living in Dallas and Preston Hollow
Cost-of-living indexes for the Dallas–Fort Worth area do not all tell the same story, and none of them describes a nearly $6.7 million house on Walnut Hill Lane. Housing here is a luxury-market question, not a metro average. Everyday costs and yard-and-pool maintenance should be budgeted separately. Texas has no state income tax; property taxes are the other side of that ledger. Use current local numbers if you are moving.
Schools Shown on the Listing
Zillow, citing GreatSchools, shows Walnut Hill International Leadership Academy (PK–8, 1.1 miles, 8/10), Thomas Jefferson High School (9–12, 0.9 miles, 5/10) and Francisco Medrano Middle School (7–8, 2.8 miles, 4/10). Ratings and zones change. Confirm with Dallas ISD.
Things to Verify
- Construction status, remaining work, warranties, and a certificate of occupancy
- The 0.96-acre lot figure versus the “1-acre” marketing language, plus survey and easements
- That advertised systems — the 8K media room, cameras, EV charger, sauna, pool and outdoor kitchen — are complete and working
- Why the assessed value shown ($8,023,830) exceeds the $6,695,000 asking price, and what taxes will be after a sale
- Jumbo-loan eligibility on a house still labeled under construction, and insurance quotes
- That there is in fact no HOA, as Facts & Features state
The Bottom Line
At $6,695,000, 4625 Walnut Hill Ln is listed as an 11,858-square-foot, 5-bedroom modern house in Preston Hollow, with a custom pool, a five-car garage and high-end finishes. The listing is for sale, the year built is shown as 2024, and Zillow still describes the home as under construction. The tax assessment on the page is higher than the asking price. Confirm completion, taxes and jumbo financing in writing before treating it as a finished house.
Frequently Asked Questions
What is the asking price?
$6,695,000, according to the current listing dated Nov. 7, 2026. Earlier 2026 listings show $6,250,000, $6,499,000 and $6,695,000. Confirm with the agent.
Is this new construction finished?
Not clearly. Zillow labels it New construction and Under Construction, with a 2024 year built. Confirm remaining work and occupancy approvals with the agent.
How much land is included?
Zillow’s facts show 0.96 acres. The marketing text says a 1-acre lot. Ask for the survey.
What would the monthly payment be?
It depends on the down payment, rate and term. A labeled illustration using 20% down, a $5,356,000 30-year loan and a 7.11% Freddie Mac conforming average from the week of Nov. 12, 2026, comes to about $36,000 a month in principal and interest, before taxes and insurance. That is not a jumbo quote.
How much are the property taxes?
Zillow shows $170,086 a year on an assessed value of $8,023,830, which is higher than the asking price. Confirm with the Dallas Central Appraisal District.
Does this listing have an HOA?
Facts & Features say no, and the header shows no HOA fee. Still verify any private-road or fence obligations with the agent.
See the full listing, all photos and the latest status on Zillow: https://www.zillow.com/homedetails/4625-Walnut-Hill-Ln-Dallas-TX-75229/26758759_zpid/
Listing courtesy of Gary Bisha, My Castle Realty, as shown on Zillow. Source: NTREIS, MLS #21430668. Photos via the listing on Zillow; all rights belong to their owners.
Disclaimer: All property details, prices, measurements and photos in this article come from the public listing on Zillow at the time of writing and may change at any time. This article is for informational purposes only and is not affiliated with the seller or listing agent. Verify all information with the listing agent and through your own inspection, survey and research before making any decision.
