Isaac Mackzum

Isaac Mackzum is a real estate agent with Stoneburner & Associates in Houston. MLS records credit Isaac with 2 transactions over the last 12 months, worth $623,000 in total sales volume. Across both sides of the deal, that is an average of $311,500 per transaction.

All of Isaac's MLS activity in this period is on the selling side, representing buyers: 2 buyer-side transactions for $623,000, or $311,500 on average.

By sales volume, Isaac ranks 4247th of the 5,628 agents in Austin with recorded sales, ahead of 25 percent of them. The typical agent there closed 3 transactions worth $1.5 million.

Statewide, Isaac is 48796th by volume among 72,302 Texas agents with recorded sales.

In ZIP code 78745, the address on Isaac's MLS record, the median sold price was $480,000 across 71 sales between June 2026 and July 2026. Isaac's average transaction of $311,500 is below that median, so much of the work is in the more affordable part of the market.

Isaac is listed with Stoneburner & Associates, Houston. No other agent shares that office record in our data.

These other Austin agents also have recorded sales in the last 12 months. They are ranked by sales volume. Compare a few before you pick someone to interview.

• Dave Clinton505 transactions · 166.5M volume
• Matthew Menard213 transactions · 90M volume
• Raquel Atwell142.5 transactions · 62.6M volume
• Kumara Wilcoxon20.5 transactions · 62.1M volume
• Kent Zarbock140.5 transactions · 61.8M volume
• Trey Phillips21 transactions · 57.9M volume

The numbers on this page come from public MLS and license records, last updated May 2026. Transaction counts and dollar volumes cover the last 12 months and are credited to the agent named on each record. Isaac has not claimed this profile, and a listing here does not mean Isaac or Stoneburner & Associates endorses or is affiliated with Expert Agents Near Me. We collect no reviews, so there are no ratings from us on this page.