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Keenan Group#1 Austin Board of Realtors Team 2024

This property has sold on July 3, 2024. Looking for something similar? Contact us or browse available homes.

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Off Marketas of Apr 24, 2026

This property is no longer actively listed. We can help you find similar homes currently for sale, notify you if this property relists, or explore off-market opportunities in the area.

$749,900

last listed

3104 Dolphin Dr, Austin, TX 78704

South Congress•MLS# 4351048
3beds
3bath
1,668sqft
Built1963

Why you're seeing this property: Unlike major portals that hide off-market listings, we maintain the most comprehensive Austin property database. View market history, neighborhood data, and discover similar homes currently for sale. #1 Austin Realtor Team 2024.

3 bed, 3 bath, 1,668 sqft on 0.21 acres in South Congress. Austin, TX 78704. Last listed at $749,900, sold July 3, 2024. Austin ISD.

About This Home

Classic South Austin charmer! This thoughtfully updated home sits on a beautifully landscaped .21 acre lot in the heart of the desirable 78704 zip code, with easy access to South Lamar, Zilker & Barton Springs, as well as the South First and Congress districts. The main house has two bedrooms and two bathrooms, while the adaptable second-story studio apartment serves as a third bedroom and bath. This versatile space has been used as a permitted short-term rental, a guest retreat, and a home office, offering various possibilities! The interior features fresh paint throughout, gorgeous natural light, archways, and updated fixtures. This formerly 3/1 ranch has been opened up to provide more space for the living, dining, and kitchen areas, along with a laundry and storage room for added convenience. At the front of the home is a guest bedroom and full bathroom. The large primary suite is nestled at the rear of the home and has ample natural light from multiple windows overlooking the garden, as well as private access to the backyard. The ensuite bathroom features a newly-updated walk-in shower. The second-floor, cedar-lined studio apartment has a private entrance that is accessed from the backyard, eliminating the need to pass through the main house. Complete with a full bathroom, it offers a tranquil retreat overlooking the trees and backyard. This flexible space offers many possibilities, including the potential to earn short-term rental income. The exterior features plenty of space for entertaining, including a fire pit area, dining patio, and newly-rebuilt stairs and deck for the second-story unit. A privacy fence and lush landscaping complete with an irrigation system create a secluded and relaxing oasis. This well-maintained home has had an efficient tankless water heater and new HVAC installed in recent years. For discerning buyers, the property has been professionally inspected and a comprehensive home inspection report is available in documents.

Property Type
Residential
Year Built
1963
Lot Size
0.21 acres
Price / Sq Ft
$450
Garage
1 spaces

Listing information last updated July 3, 2024.

Listed by Bramlett Residential

MLS# 4351048 • Closed

IDX inquiries: Keenan Group at Compass · (512) 415-7653

Properties displayed may be listed or sold by various participants in the MLS.

Highlights

1-car garage with additional parking capacity
Generous 0.21-acre lot
Ceiling Fan(s)
High Ceilings
Chandelier
Double Vanity

Facts & Features

Interior

Features

  • Ceiling Fan(s)
  • High Ceilings
  • Chandelier
  • Double Vanity
  • Eat-in Kitchen
  • Natural Woodwork
  • Open Floorplan
  • Pantry
  • Primary Bedroom on Main

Appliances

  • Dishwasher
  • Disposal
  • Dryer
  • Exhaust Fan
  • Free-Standing Gas Oven
  • Free-Standing Gas Range
  • Refrigerator
  • Washer
  • Dryer
  • Tankless Water Heater

Flooring

  • Concrete
  • Tile
  • Wood
Heating
Central
Cooling
Ceiling Fan(s),Central Air
Exterior & Lot

Features

  • Balcony
  • Exterior Steps
  • Garden

Construction

  • Hardi
  • Plank Type
  • Masonry – Partial
  • Stone

Lot Features

  • Back Yard
  • Curbs
  • Garden
  • Landscaped
  • Level
  • Native Plants
  • Sprinkler - Automatic
  • Trees-Medium (20 Ft - 40 Ft)
  • Trees-Moderate

Fencing

  • Back Yard
  • Fenced
  • Privacy
  • Wood

Foundation

  • Slab

Patio / Porch

  • Covered
  • Deck
  • Patio
  • Rear Porch
Roof
Composition,Shingle
Lot Size
0.21 Acres

Parking

  • Attached
  • Door-Single
  • Driveway
  • Garage
  • Garage Faces Front
  • Inside Entrance
Garage Spaces
1
Financial
Original List Price
$849,900
Price per Sq Ft
$450
Utilities
  • Electricity Connected
  • Natural Gas Connected
  • Sewer Connected
  • Water Connected
Water Source
Public
Sewer
Public Sewer

Transaction History

1 record on file

Every recorded listing, sale, and lease at 3104 Dolphin DR, whoever represented it.

  1. SoldJuly 3, 2024
    Listed at: $849,900MLS 4351048

Prices shown are list prices. Closed sale prices are available to registered clients in accordance with ACTRIS rules.

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Price & Listing History

Listing timeline with current price, original ask, and market time.

View Timeline
Current list
$749,900
Original list
$849,900
Price movement
$100K reduction
Listed / DOM
Feb 22, 2024

Tax Record

Public record data from county appraisal records. Market value can differ from assessed value.

Assessed Value
$675,447
Assessment Year
2025
Year Built
1963
Parcel ID
000000307698
$827K
$528K
$528,404
2022
$724,854
+37.2% from prev
2023
$827,362
+14.1% from prev
2024
$675,447
-18.4% from prev
2025
YearTaxesTotal AssessmentLandAdditions
2025-18.4%
—$675,447——
2024+14.1%
—$827,362$525,000$205,000
2023+37.2%
—$724,854$525,000$302,362
2022
—$528,404$525,000$199,854
5-Year Change27.8%

Virtual Tour

Virtual tour of 3104 Dolphin Dr
Map showing 3104 Dolphin DR
3104 Dolphin DR
Directions

Zoned Schools

Austin ISD →

1 High School1 Middle School1 Elementary School

Zoned assignments come from the property school fields available to us. District context schools are shown only when an assigned tier is missing. Contact the school district directly to verify current boundaries and enrollment eligibility.

Principal & interest
$4,154

Excluded from this estimate: property taxes, home insurance, and HOA dues. Each requires verified amount, cadence or unit, source, and as-of details.

20% ($150K)

Adjustable assumption - not a lending recommendation.

$749,900

Loan: $600K
Mortgage rate%
Payoff: ~2056
Rate source: Freddie Mac 30-year fixed average (PMMS via FRED), as of 2026-10-15
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Keenan Market Position

A sourced read on South Congress pricing, timing, and property scale. No automated valuation claim.

List price

$749,900

Price per sqft

$450/sqft

Vs. Neighborhood guide reference price

-10.5%

$837.5K · South Congress neighborhood guide · reference price

Days on market

Not available

Original to current

$100K reduction

$849.9K original

Active inventory context

21 listings

Price Position in South Congress

Neighborhood guide reference price $837.5KThis home $749.9K

Listed 10% below the South Congress neighborhood guide reference price. South Congress neighborhood guide · reference price.

Seller's Market - 21 active listings

Source: MLS Grid / Unlock MLS and Keenan Group review as of Apr 25, 2026.

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Verified property facts

Frequently Asked Questions

What school district is 3104 Dolphin Dr in?

3104 Dolphin Dr is zoned for Austin ISD with assigned schools: Zilker (elementary), O Henry (middle), Austin (high). School assignments should be verified directly with the district.

What are the property details for 3104 Dolphin Dr?

3104 Dolphin Dr is a Residential built in 1963 featuring 3 bedrooms, 3 full bathrooms, 1,668 square feet, 0.21-acre lot.

What is the price per square foot at 3104 Dolphin Dr?

3104 Dolphin Dr was last listed at $450 per square foot across 1,668 sqft. The South Congress neighborhood guide reference price is $837,500 (South Congress neighborhood guide · reference price).

What are the property taxes for 3104 Dolphin Dr?

The most recent annual property tax for 3104 Dolphin Dr is $10,859. Texas has no state income tax, so property taxes are a primary revenue source. Rates vary by jurisdiction and exemptions. Verify current amounts with the county appraisal district.

How does 3104 Dolphin Dr compare with other homes in South Congress?

3104 Dolphin Dr was last listed at $749,900 and sold on July 3, 2024. The current MLS snapshot shows 129 active listings in 78704. Keenan Group has completed 49 verified transactions in 78704 within its 1,000+ completed transactions and $1B+ career volume across Austin. See Keenan Group's South Congress guide for current neighborhood analysis.

When was 3104 Dolphin Dr built?

3104 Dolphin Dr was built in 1963 (63 years ago). Buyers should budget for potential updates to major systems.

Answers use visible listing facts, school context, and neighborhood data available on this page. Verify time-sensitive details before making decisions.

What should buyers know about South Congress?

South Congress is one of Austin's established neighborhoods, zoned for Austin ISD in the 78704 area. The Keenan Group has specialized in South Congress real estate for 25+ years with 1,000+ career transactions. Contact (512) 415-7653 for current market conditions and available homes.

  • South Congress area specialists
  • Austin ISD zoning
  • #1 Austin Board of Realtors Team 2024
  • 25+ years Austin luxury real estate

Source: Keenan Group at Compass Real Estate, #1 Austin Board of Realtors Team (2024)

Why Choose the #1 Austin Board Team for South Congress

#1 ABoR Team 20241,000+ Career SalesCompass Luxury Collection Specialist

#1 Austin Board of Realtors Team. 1,000+ homes sold and $1B+ in career sales over 25+ years in Austin.

25+ years advising buyers and sellers in this community

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Last updated: 4/24/2026, 9:51:50 PM

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