138 Serene ST, Spring Branch TX 78070

Spring Branch, TX 78070 | Peninsula Mystic Shores

$2,645,000 $496/sqft ▼ $145,000 (5.2%)
4 Beds
5 Baths 4 Full, 1 Half
5,338 Sq Ft
10.03 Acres
2007 Built
4 Garage

About This Property

A rare opportunity to own two contiguous parcels in The Peninsula at Mystic Shores — 144 Serene (~6 acres with residence) and 138 Serene (~4 acres) — delivering ~10 acres and approximately 1,200+ linear feet of Canyon Lake shoreline spanning the main shore and cove (buyer to verify). Together, the property offers unmatched privacy, water access, and lifestyle, with a private on-site boat launch/ramp.

The main residence showcases soaring 24-ft beamed ceilings, an open layout filled with natural light, and wall-to-wall windows framing panoramic lake views. The chef’s kitchen with double ovens and custom cabinetry flows to casual and formal dining and expansive outdoor living with a kitchen and fireplace. The primary retreat offers a stone-clad fireplace, spa bath, and water panoramas. Two main-level offices, plus upstairs media and game rooms with wet bar, ensure year-round enjoyment.

Outdoors, an infinity-edge pool with rock waterfalls anchors the setting, with a gently sloping lawn to the water’s edge. An attached four-car garage includes a covered boat bay and workshop. A private irrigation well and high-speed internet provide modern convenience.

Adding the adjacent 4-acre tract expands your usable shoreline, increases privacy, and opens possibilities for future amenities or guest quarters. Ownership in Mystic Shores includes a 26-acre lake park with resort pool, tennis & pickleball, sand volleyball, trails, and more.

Property Highlights

Pool In Ground, Infinity
Waterfront Canyon Lake · Lake Front, Waterfront

Features

  • Breakfast Bar
  • Built-in Features
  • Ceiling Fan(s)
  • High Ceilings
  • Double Vanity
  • Eat-in Kitchen
  • Kitchen Island
  • Multiple Living Areas
  • Primary Bedroom on Main
  • Walk-In Closet(s)
  • Wet Bar

Location

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Schools

School District Comal ISD
Elementary Rebecca Creek
High School Canyon Lake

Property Details

Property Type Residential
Flooring Tile, Wood
Cooling Central Air
Heating Central, Electric
Exterior Balcony, Barbecue, Boat Ramp, Restricted Access
County Comal
MLS # 5929912

Parking

Garage 4 spaces

HOA & Community

HOA Fee $50 /Monthly
HOA Includes Common Area Maintenance, Security

Tax Information

Annual Taxes $8,200 (2025)

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* Estimate only. Does not include HOA fees, PMI, or other costs.
This property has HOA fees of $50/monthly.

Listing History

MLS# 5929912 - Updated Feb 24, 2026 153 days
Jan 22, 2026 Price Change $2,645,000
Sep 17, 2025 Listed Listing Courtesy of Christie's Int'l Real Estate - mfabbiohomes@​gmail.com $2,790,000

Frequently Asked Questions About 138 Serene ST, Spring Branch TX 78070

When was 138 Serene ST, Spring Branch TX 78070 built?

138 Serene ST, Spring Branch TX 78070 was built in 2007.

How much does 138 Serene ST, Spring Branch TX 78070 cost?

138 Serene ST, Spring Branch TX 78070 is listed for sale at $2,645,000. That is $496 per square foot.

How many bedrooms and bathrooms does 138 Serene ST, Spring Branch TX 78070 have?

138 Serene ST, Spring Branch TX 78070 has 4 bedrooms and 5 bathrooms (4 full, 1 half) with 5,338 square feet of living space.

What school district is 138 Serene ST, Spring Branch TX 78070 in?

138 Serene ST, Spring Branch TX 78070 is in the Comal ISD school district. Assigned schools include Rebecca Creek (elementary), Mountain Valley Middle (middle), Canyon Lake (high school).

Does 138 Serene ST, Spring Branch TX 78070 have an HOA?

Yes, 138 Serene ST, Spring Branch TX 78070 has an HOA fee of $50 per monthly. The HOA includes common area maintenance, security.

What are the property taxes on 138 Serene ST, Spring Branch TX 78070?

The annual property taxes on 138 Serene ST, Spring Branch TX 78070 are $8,200 (as of 2025).

How big is the lot at 138 Serene ST, Spring Branch TX 78070?

The lot at 138 Serene ST, Spring Branch TX 78070 is 10.03 acres, and the home has 5,338 square feet of living space.

What type of property is 138 Serene ST, Spring Branch TX 78070?

138 Serene ST, Spring Branch TX 78070 is a residential property.

Does 138 Serene ST, Spring Branch TX 78070 have a garage?

Yes, 138 Serene ST, Spring Branch TX 78070 has a 4-car garage.

Does 138 Serene ST, Spring Branch TX 78070 have a pool?

Yes, 138 Serene ST, Spring Branch TX 78070 has a pool. Pool features include in ground, infinity.

Is 138 Serene ST, Spring Branch TX 78070 waterfront?

Yes, 138 Serene ST, Spring Branch TX 78070 is a waterfront property on Canyon Lake. Waterfront features include lake front, waterfront.

What subdivision is 138 Serene ST, Spring Branch TX 78070 in?

138 Serene ST, Spring Branch TX 78070 is located in the Peninsula Mystic Shores subdivision in Spring Branch, TX.

How long was 138 Serene ST, Spring Branch TX 78070 on the market?

138 Serene ST, Spring Branch TX 78070 was on the market for 153 days, listed on September 17, 2025.

What heating and cooling does 138 Serene ST, Spring Branch TX 78070 have?

138 Serene ST, Spring Branch TX 78070 has central, electric heating and central air cooling.

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