510 Blanco River Ranch RD, San Marcos TX 78666

San Marcos, TX 78666 | Blanco River Ranch

$1,699,990 $405/sqft
4 Beds
5 Baths 5 Full
4,200 Sq Ft
4.347 Acres
2017 Built
2 Garage

About This Property

http://www.510blancoriverranch.com

Imagine ending your day to the sound of flowing water—not traffic. Walking your own land to a hidden grotto, private waterfall & even unexplored caves—features most will never experience, let alone own.

Tucked beneath a dense canopy of mature trees along the Blanco River, this is not just a home—it’s a one-of-one Hill Country compound where natural beauty & privacy converge in a way that cannot be recreated today. Just minutes from IH-35 & within 30 minutes of Downtown Austin, it offers the rare balance of convenience & complete escape.

Cross the charming entry bridge & the property immediately sets itself apart. This isn’t typical riverfront—this is an immersive setting where the land itself is the luxury.

The main residence (~2,800 sqft) was designed to live in harmony with its surroundings, featuring expansive windows, natural materials & a warm, grounded feel throughout.

The property extends well beyond the main home. A detached casita (~1,400 sqft) with full kitchen & fireplace offers true independent living—ideal for guests or multigenerational use. A separate spa building features a 6-person sauna, full bath, changing area & sleeping loft, fully climate controlled for year-round use.

Outdoor living is where this property becomes unforgettable—multiple gathering areas, direct river access & a setting that feels like a private resort. Steps lead to the riverbank where clear water & peaceful surroundings define the experience.
Private well w/ full-home filtration & reverse osmosis.

There are homes… & there are properties that rarely exist. This is one of them.

Property Highlights

Waterfront Blanco River · River Front

Features

  • Breakfast Bar
  • Built-in Features
  • Vaulted Ceiling(s)
  • Chandelier
  • Kitchen Island
  • Open Floorplan
  • Primary Bedroom on Main
  • Sauna
  • Soaking Tub

Location

Schools

School District SanMarcosCONSISD
Elementary Travis
Middle School Miller
High School San Marcos

Property Details

Property Type Residential
Flooring Wood
Cooling Central Air
Heating Central
Exterior Exterior Steps, Private Entrance
County Hays
MLS # 4049712
Garage 2 spaces

HOA & Community

HOA Fee $725 /Annually
HOA Includes Common Area Maintenance

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* Estimate only. Does not include HOA fees, PMI, or other costs.
This property has HOA fees of $725/annually.

Tax Information

Annual Taxes (MLS) $26,886 (2024)

Listing History

MLS# 4049712 - Updated Aug 17, 2026 74 days (137 CDOM)
May 17, 2026 Listed Listing Courtesy of The Seely Group LLC - homes@​seelyproperties.com $1,699,990

Frequently Asked Questions About 510 Blanco River Ranch RD, San Marcos TX 78666

When was 510 Blanco River Ranch RD, San Marcos TX 78666 built?

510 Blanco River Ranch RD, San Marcos TX 78666 was built in 2017.

How much does 510 Blanco River Ranch RD, San Marcos TX 78666 cost?

510 Blanco River Ranch RD, San Marcos TX 78666 is listed for sale at $1,699,990. That is $405 per square foot.

How many bedrooms and bathrooms does 510 Blanco River Ranch RD, San Marcos TX 78666 have?

510 Blanco River Ranch RD, San Marcos TX 78666 has 4 bedrooms and 5 bathrooms (5 full) with 4,200 square feet of living space.

What school district is 510 Blanco River Ranch RD, San Marcos TX 78666 in?

510 Blanco River Ranch RD, San Marcos TX 78666 is in the SanMarcosCONSISD school district. Assigned schools include Travis (elementary), Miller (middle), San Marcos (high school).

Does 510 Blanco River Ranch RD, San Marcos TX 78666 have an HOA?

Yes, 510 Blanco River Ranch RD, San Marcos TX 78666 has an HOA fee of $725 per annually. The HOA includes common area maintenance.

What are the property taxes on 510 Blanco River Ranch RD, San Marcos TX 78666?

The annual property taxes on 510 Blanco River Ranch RD, San Marcos TX 78666 are $26,886 (as of 2024).

How big is the lot at 510 Blanco River Ranch RD, San Marcos TX 78666?

The lot at 510 Blanco River Ranch RD, San Marcos TX 78666 is 4.347 acres, and the home has 4,200 square feet of living space.

What type of property is 510 Blanco River Ranch RD, San Marcos TX 78666?

510 Blanco River Ranch RD, San Marcos TX 78666 is a residential property.

Does 510 Blanco River Ranch RD, San Marcos TX 78666 have a garage?

Yes, 510 Blanco River Ranch RD, San Marcos TX 78666 has a 2-car garage.

Is 510 Blanco River Ranch RD, San Marcos TX 78666 waterfront?

Yes, 510 Blanco River Ranch RD, San Marcos TX 78666 is a waterfront property on Blanco River. Waterfront features include river front.

What subdivision is 510 Blanco River Ranch RD, San Marcos TX 78666 in?

510 Blanco River Ranch RD, San Marcos TX 78666 is located in the The Blanco River Ranch subdivision in San Marcos, TX.

How long was 510 Blanco River Ranch RD, San Marcos TX 78666 on the market?

510 Blanco River Ranch RD, San Marcos TX 78666 was on the market for 74 days, listed on May 17, 2026.

What heating and cooling does 510 Blanco River Ranch RD, San Marcos TX 78666 have?

510 Blanco River Ranch RD, San Marcos TX 78666 has central heating and central air cooling.

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