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Harrison Lilly

| Harrison Lilly Realty Dallas | Harrison Lilly Realty | PLACE

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812 Sir Galahad Ln , Lewisville, TX 75056
$4,950,000
Est. Payment: $25,484.75/mo
0 Bed
0 Bath
0 Sqft
Status: active | Days on site: 404
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VCR-C15903466 - VCR-C159091383,VCR-C159052275
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House Description

A Rare Land Only Opportunity in Castle Hills. Discover one of Castle Hills’ premier homesites — a beautiful, oversized lot in the rolling hills of eastern Lewisville. Situated 15–20 minutes from major employment centers, this property provides the ideal balance of privacy, convenience, and long term investment. The homesite is large enough to support a 15,000+ sq ft custom residence, and can accommodate a full basement. So, imagine the possibilities: a 10+ car garage, an entertainment level, a safe room, an indoor court, an elevator to an observation deck with great views. Build now or take your time — there’s no requirement to start immediately, and no restrictions on builders or architects. Customized plans are available upon request. The site itself faces a serene 4+ acre park with a small lake and gazebo, and is only steps from additional parks, trails, and a beautiful golf course. Shopping and dining are just blocks away, with only minimal daily street traffic. Truly, it’s an exceptionally master-planned community throughout. The community, not really just a neighborhood, with numerous world class amenities, top tier schools, extensive entertainment options (including a soon to be built nearby indoor snow ski slope), and unmatched surrounding infrastructure. Multiple world-class airports are less than 30 minutes away. Additionally, an optional membership to The Lakes at Castle Hills allows access to golf, tennis, pools, and a long list of social functions which are all recognized as being great, at a well-known, up and coming golf club and community center. The list of amenities is impressive. Again, this is a once in a lifetime chance to build a generational home in one of DFW’s most desirable and dynamic communities — today the population center of the metroplex, and tomorrow a cultural hub. We are local experts and happy to share what’s ahead in Castle Hills.

Highlights

Listed by Steve Koleno , Beycome Brokerage Realty LLC , North Texas Real Estate Information Systems

Property Type

Vacant Land

Lot/Acreage
0.72

HOA Fee

777 Annually

County

Denton

Neighborhood

Castle Hills Ph I Sec C

School District

Lewisville ISD

Listing ID

21002287

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Interior Features

Bedrooms and Bathrooms
  • Bedrooms:0
  • Bathrooms:0
  • Full Bathrooms:

Exterior Features

Lot:Acreage,.5 to < 1 Acre
Zoning:RES
Principal Interest
$25,485
Taxes
$565
HOA
$777

Home Price

$4,950,000

Loan Details

30 yrs
6.674%

Down Payment

20%
$990,000
All calculations are estimates and provided by Blueroof360. Today’s Rates provided by Blueroof360. Information and interactive calculators are made available to you only as self-help tools for your independent use and are not intended to provide investment or tax advice. We cannot and do not guarantee their applicability or accuracy in regards to your individual circumstances. All examples are hypothetical and are for illustrative purposes. We encourage you to seek personalized advice from qualified professionals regarding all personal finance issues.
Monthly Price:
$25,484.75

Principal

Taxes

HOA

Principal Taxes HOA Total
Monthly $25,484.75 $565.08 $777.00 $26,826.83
Yearly $305,817.00 $6,781.00 $9,324.00 $321,922.00
Total $9,174,509.89 $203,430.00 $279,720.00 $9,657,659.89

Today's Rates

30 Year

6.67%

20 Year

6.37%

15 Year

5.93%

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Market insight data is pulled from the same city as the listing being viewed (Lewisville, TX).

The schools listed are within a 2-mile radius of the property; however, attendance is not guaranteed. Please contact the local school district to confirm zoning and enrollment options.

Information provided by North Texas Real Estate Information Systems Multiple Listing Service, and is deemed reliable but not guaranteed accurate.

IDX service by Blueroof 360

Data last updated: 2026-08-24T23:23:04.180Z

© 2026 North Texas Real Estate Information Systems