KC
License active & verified
Real estate agent · Corona Del Mar, California

Katherine Costello

Agent, Engel & Volkers Dana Point ·CA DRE #02243920

Verify license on CA DRE Unclaimed profile — built from public records

The verified record

Every number below is computed from public records of closed sales, last 24 months · how we compute this
2
homes closed, last 24 mo
▲ More than 59% of 473 Corona Del Mar-area agents
$10.5M
closed sales volume
$5.2M median sale price
2
closed since 2025
Katherine Costello is a licensed real estate agent (CA DRE #02243920) with Engel & Volkers Dana Point in Corona Del Mar, CA, with 2 closed transactions verified in public records over the last 24 months at a median sale price of $5,249,000. That is more recent sales in Corona Del Mar than 59% of the 473 agents active there.
Source: California public property records. Updated monthly. How we compute these numbers →

Performance in detail

Verified from public records · 2023–2026 · metrics shown only where at least 3 closed listings support them

Closed transactions by year

Current year is partial

0 2023 0 2024 2 2025 0 2026

Price range of closed sales

Middle 50% of Katherine's transactions vs the Corona Del Mar market

$5.1M $5.2M $5.4M mkt $4.0M
Middle 50% of sale prices; dot = agent median, dashed = market median

Who Katherine represents

2 total closed sides, 2023–2026

1 seller-side (50%) 1 buyer-side (50%)
Avg days on market
Active listings now
0
on market today
Closed 2023–2026
2

Where Katherine sells

Closed sales by ZIP, last 24 months

Questions to ask Katherine in an interview

Generated from this agent's own public sales record — bring them to your first call

  1. Your typical sale is $5.2M — how does your approach change for a home like mine?
  2. Who will I actually work with day-to-day — you or a team member?

Compare with similar Corona Del Mar agents

Ranked by verified sales in public records, last 24 months — no agent pays for placement

AgentSales (24 mo)Median priceAvg DOMSale÷listPrice cuts
Katherine Costello 2 $5.2M
Steven Sergi 38 $5.4M 62 95.2% 29%
Jason Foreman 13 $5.5M 82 90.4% 33%
Michelle Linovitz 6 $5.0M 7 98.1% 0%
Sue Young 6 $5.5M 83 93.8% 80%
Bruce Miller 5 $5.6M 7 96.5% 0%

Frequently asked questions

How many homes has Katherine Costello sold?

Katherine Costello has 2 publicly recorded closed transactions in 2023–2026, including 2 in the last 24 months (1 representing sellers, 1 representing buyers over the full period).

What price range does Katherine Costello work in?

Katherine Costello's closed sales have a median price of $5,249,000; the middle 50% of transactions fall between $5,124,500 and $5,373,500.

Is Katherine Costello's license active?

Katherine Costello holds an active California DRE license (#02243920). License status can be verified on the California DRE public lookup.

Katherine CostelloEngel & Volkers Dana Point · Corona Del Mar, CA
Check my fit

Data window 2023–2026, computed 2026-07-11 · Dispute or correct this data · *our public sales record begins 2025; Katherine's career may predate it