259 E 21st Street, Costa Mesa, CA 92627
- 4 beds
- 3 baths
- 2,413 sq ft
- 8,640 sq ft lot
- Built 1954
$3,795,000
Est. $25,592/mo with 20% down, 30-year fixed
$1,573 a sq ft against a $1,214 Eastside Central median. Ask how it comparesSubdivision Eastside Central
31 single-family homes sold in the past 12 months · median $2,280,000
Open house
Open House
The home
About 259 E 21st Street
Resort-style living meets Eastside Costa Mesa charm in this beautifully reimagined retreat, where every space offers the option to both unwind and effortlessly entertain. Stunning from the curb, mature olive trees and lush landscaping designed by Chelsea Corinne Studio frame the welcoming porch and timeless, crisp white facade. Inside, the four-bedroom, three-bathroom main home opens into a light-filled great room beneath a vaulted, wood-planked ceiling, where a cozy fireplace anchors the living space. The gourmet kitchen is a natural gathering place, featuring white shaker cabinetry, classic subway tile, and a large eat-at island. Just off the kitchen, a generous dedicated dining area is bathed in natural light beneath a bespoke chandelier. An additional room with a bar and beverage refrigerators is ideal for dining or lounging and opens through accordion doors to the private backyard. A walk-in pantry with integrated laundry keeps everyday life beautifully organized. The primary suite is a true sanctuary, with folding glass doors that open directly to the pool, plus an ensuite bathroom and generous closet space. Additional bedrooms offer flexibility for family, guests, or a dedicated home office. Step outside and the resort experience comes to life. Set on an 8,600+ sf lot and enclosed by mature hedges, the backyard provides complete privacy around a pool, spa, and fire pit. An outdoor dining area, thriving garden, and plenty of room for lounge seating and an outdoor television make this a setting to enjoy from sunny afternoons to evenings under the stars. Across the patio sits a fully equipped, recently built from the ground-up ADU with a kitchen, bathroom, and vaulted ceiling. Folding glass doors and a pass-through window to an outdoor bar counter connect it seamlessly to the yard. Use it as a guest house, a poolside entertaining space, a studio, or a private suite for visiting family. Beyond your own backyard escape, enjoy the best of Eastside Costa Mesa living with all that Newport Beach has to offer right at your fingertips. The boutiques, coffee shops, and restaurants along 17th Street are just moments away, along with neighborhood parks and the Back Bay trails. The beach, Newport Harbor, and the OC Fair & Event Center are a short drive away, with convenient access to the 55 and 405 freeways.
Property details for 259 E 21st Street
This 4-bedroom, 3-bath single-family home sits in the Eastside Central neighborhood of Costa Mesa in Orange County. It has 2,413 square feet of living space on an 8,640-square-foot lot and is listed at $3,795,000, about $1,573 per square foot. The home was built in 1954. The MLS record lists the assessor parcel number as 426-215-03. Highlights include a private pool and spa, a fireplace, single-story living, and central air.
Photographs
Photos of 259 E 21st Street, Costa Mesa
Specifications
Home Details
General Features
- Property Type
- Single Family Residence
- MLS Number
- NP26230733
- Year Built
- 1954
- Living Area (sq ft)
- 2,413
- Living Area Source
- Other
- Lot Size (sq ft)
- 8,640
- Lot Size (acres)
- 0.1983
- Levels
- One
- Bedrooms
- 4
- Full Baths
- 3
- View
- Neighborhood
- Private Pool
- Yes
- Parcel Number
- 42621503
- On Market Date
- 2026-10-29
- Listing Terms
- Standard
Interior Features
- Interior Features
- Breakfast Bar, Built In Features, Cathedral Ceilings, Dry Bar, Separate Formal Dining Room, Eat In Kitchen, Open Floorplan, Pantry, All Bedrooms Down, Main Level Primary, Walk In Pantry
- Appliances
- Six Burner Stove, Built In Range, Barbecue, Dishwasher, Freezer, Gas Oven, Gas Range, Refrigerator
- Flooring
- Wood
- Heating
- Central
- Cooling
- Central Air, Wall Window Units
- Fireplace
- Living Room, Outside
- Laundry
- Inside, Stacked
- Main Level Bedrooms
- 4
- Main Level Bathrooms
- 3
- Entry Level
- 1
- Common Walls
- No Common Walls
- Rooms
- Entry Foyer, Bathroom, Kitchen, Dining Room, Pantry, Bedroom, Primary Bedroom, Living Room, Primary Bathroom
Exterior Features
- Exterior Features
- Fire Pit
- Lot Features
- Back Yard, Front Yard
- Parking
- Driveway
- Pool Features
- Private
- Spa
- Private
- Sewer
- Public Sewer
- Water
- Public
- Units
- 1
Community Features
- Subdivision
- Eastside Central (ECCM)
- Community Features
- Curbs, Street Lights, Sidewalks
The record
Property History for 259 E 21st Street
| Date | Event | Price | Note |
|---|---|---|---|
| Oct 29, 2026 | Listed for sale | $3,795,000 | |
| Nov 19, 2021 | Sold | $2,090,000 | Compass |
| Oct 23, 2017 | Sold | $1,400,000 | Villa Real Estate |
| May 6, 2013 | Sold | $885,000 | Coldwell Banker Previews Inter |
Added by Realatrends Real Estate
Flood, Fire and Earthquake Zones for 259 E 21st Street
We looked up this home's map point in public government maps. These facts are not part of the MLS listing.
Hazard and noise zones
- Flood zone
Zone X, area of minimal flood hazard. Outside FEMA's Special Flood Hazard Area.
FEMA National Flood Hazard Layer, FIRM panel 06059C0269K effective March 21, 2019. Checked October 15, 2026.
- Fire hazard severity zone
Not in a fire hazard severity zone on the State Fire Marshal's map.
CAL FIRE, State Fire Marshal map for Local Responsibility Areas, March 24, 2025. Checked October 15, 2026.
- Earthquake fault zone
Outside the Alquist-Priolo Earthquake Fault Zones.
California Geological Survey, Earthquake Fault Zones map, Newport Beach quadrangle, released July 1, 1986. Checked October 15, 2026.
- Liquefaction zone
Outside the liquefaction zones.
California Geological Survey, Seismic Hazard Zones map, Newport Beach quadrangle, released April 15, 1998. Checked October 15, 2026.
- Landslide zone
Outside the earthquake-induced landslide zones.
California Geological Survey, Seismic Hazard Zones map, Newport Beach quadrangle, released April 15, 1998. Checked October 15, 2026.
- Airport noise
Outside John Wayne Airport's 60 dB CNEL noise contour, 0.7 miles from it.
Airport Land Use Commission for Orange County, Airport Environs Land Use Plan noise contours. Checked October 15, 2026.
Internet and charging
- Fixed internet
Fiber: AT&T, up to 5,000 Mbps, at 14 of 23 residential locations in this census block. Cable: Spectrum, up to 1,000 Mbps, at 23 of 23. DSL: AT&T, up to 100 Mbps, at 9 of 23.
FCC National Broadband Map, provider-reported data as of December 31, 2025, for census block 060590632024006, not for this address. Not endorsed by the FCC. Checked October 15, 2026.
- EV charging
Nearest public charger 0.7 miles away (ChargePoint, 2 Level 2 ports). 494 public charging ports within 3 miles.
U.S. Department of Energy, Alternative Fuels Data Center. Straight-line distance. Checked October 15, 2026.
These facts are for the listing's map point, which can sit off the lot. A zone line can also cross a lot, and agencies revise their maps. In cities, the fire zone line follows the State Fire Marshal's 2025 map; each city adopts its own map and may add areas. These lines are not a Natural Hazard Disclosure. Check the official maps and the seller's disclosures before you rely on them. Sources for the earthquake zone lines: Reproduced with permission, California Geological Survey, Webservice of Official Maps of Alquist-Priolo Earthquake Fault Zones (2025). Reproduced with permission, California Geological Survey, Webservice of Official Maps of Seismic Hazard Zones (2025).
Official maps
Cost of ownership
Estimated monthly payment
7.24% · 30-yr fixed$
$29,602/mo
10% down · 30-year fixed · $379,500 down
Principal & interest$23,277
Mortgage insurance (est., over 80% LTV)$1,423
Property tax (est. 1.2%)$3,795
Home insurance (rough est., varies widely)$1,107
HOANot reported, not included
$25,592/mo
20% down · 30-year fixed · $759,000 down
Principal & interest$20,690
Property tax (est. 1.2%)$3,795
Home insurance (rough est., varies widely)$1,107
HOANot reported, not included
$23,006/mo
30% down · 30-year fixed · $1,138,500 down
Principal & interest$18,104
Property tax (est. 1.2%)$3,795
Home insurance (rough est., varies widely)$1,107
HOANot reported, not included
Estimated carrying cost
$4,902/mo
All cash · taxes and insurance only
Principal & interestNone (cash purchase)
Property tax (est. 1.2%)$3,795
Home insurance (rough est., varies widely)$1,107
HOANot reported, not included
Estimate only, not a loan offer or quote. Principal and interest use the Freddie Mac 30-year fixed average of 7.24% (week of Oct 29, 2026); your rate will differ. A loan this size is typically a jumbo loan, which prices differently. Tax and insurance are modelled, not billed amounts; tax uses a typical Costa Mesa rate, excluding Mello-Roos. Verify all figures. Full assumptions and disclosures.
Next steps
Buying 259 E 21st Street
Want to see 259 E 21st Street in person? We have guided buyers through Eastside Central and the wider Costa Mesa market since 1983. Call to arrange a private tour, or send a note and we'll follow up.
Selling near 259 E 21st Street
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The neighborhood
About Costa Mesa
Costa Mesa sits on the coastal tableland of central Orange County, bordered by Santa Ana, Huntington Beach, and Newport Beach, with its southern edge about a mile from the Pacific. South Coast Plaza, the Segerstrom Center for the Arts, the Orange County Fairgrounds, Orange Coast College, and the Eastside and Mesa Verde neighborhoods all fall within the Newport-Mesa Unified School District.
Eastside Central home sales, past 12 months
- Homes sold
- 31
- Median price
- $2,280,000
- Median days on market
- 12
- Median per sq ft
- $1,214
Recorded MLS closings of single-family homes, Oct 24, 2025 to Oct 24, 2026. Days on market run from listing to going under contract.
Price per square foot against recent Eastside Central sales
At $1,573 per square foot, this home's asking price is 30% above the Eastside Central median of $1,214 for single-family homes that closed in the past 12 months.
Recent Eastside Central sales
| Address | Closed | Price | Sq ft | Per sq ft | Days on market |
|---|---|---|---|---|---|
| 2239 Catherine | Oct 14, 2026 | $2,125,000 | 1,517 | $1,401 | 7 |
| 184 E Bay | Oct 9, 2026 | $2,260,000 | 1,452 | $1,556 | 12 |
| 195 Broadway | Oct 6, 2026 | $1,750,000 | 1,293 | $1,353 | 8 |
| 418 E Bay Street | Sep 30, 2026 | $2,350,000 | 1,976 | $1,189 | 141 |
| 339 E 19th | Sep 30, 2026 | $2,800,000 | 1,692 | $1,655 | 6 |
Schools
School District for 259 E 21st Street
As listed in the MLS record. Confirm attendance boundaries with the school district.
The MLS record lists the school district as Newport Mesa Unified.
Living in Costa Mesa covers its schools, parks and beaches.
Location
Location
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Listed by Mark Taylor of Compass
Listing information updated Oct 30, 2026 at 2:12 PM PT. Source: CRMLS.
This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. The display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, the Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.