Active Open Friday 06/19 2 PM-5 PM

142 144 6th

Seal Beach, CA 90740

$3,095,000 $13,048/Mo

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Overview

Bed

Bath

3,607

Sqft

5,876

Sqft(Lot)

Description

An extraordinary opportunity to own a rare double-lot duplex in one of Southern California’s most sought-after coastal communities. Opportunities like this seldom become available in the heart of coveted Old Town Seal Beach’s prestigious Gold Coast neighborhood. Whether you're looking to build your dream home, complete a 1031 exchange, live in one unit while generating rental income from the other, or capitalize on a unique investment or development opportunity, this property offers exceptional flexibility in one of California’s most beloved beach towns. Located just one block from the sand and ocean, this exceptional double lot presents endless possibilities for homeowners, investors, and developers alike. Potential opportunities include dividing the property into two separate lots and c onstructing new homes with ADUs, retaining one existing structure while developing the second lot, or preserving the charming one-bedroom beach cottage and adding an ADU above the garage (all subject to City approval). The property features two original beach cottages connected by a shared courtyard. Unit 144 is a spacious 3,047-square-foot residence (per appraisal) offering 3 bedrooms and 3 bathrooms. The main level features a generous family room, kitchen, dining area, living room, and full bathroom. Upstairs, you’ll find a large den, an expansive primary suite with a walk-in closet and en-suite bathroom, as well as a secondary bedroom and an additional full bathroom. A spiral staircase leads to the rooftop deck, where breathtaking 360-degree views of the coastal town, city lights, and surrounding mountains create an unforgettable setting. Unit 142 is a charming 1-bedroom, 1-bathroom beach cottage complete with a living room, kitchen, and private outdoor yard. Each residence includes its own spacious two-car garage with access from a wide alley—an uncommon and highly desirable feature in Old Town. This is a standout opportunity for owner-users, investors, and developers seeking a premier coastal property with exceptional versatility and long-term potential. Just moments from the beach, the boutique shops and restaurants of Main Street, and highly rated school district, this rare double-lot property offers the very best of Seal Beach coastal living.

Property Details

Property Type : Residential

Price : $3,095,000

AD Id : 84978312

MLS Id : NP26126800

Beds : 4

Lot Size : 5,876 Sqft

Living Area Size : 3,607

Year Built : 1938

Garage : 4

County : Orange

Open House

06/19 2 PM-5 PM

Map

What's Nearby

Nearby Areas

Features

Bedroom Information

Total Bedrooms: 4

Bathroom Information

Total Baths: 4 Full Baths: 4

Water/Sewer

Water Source: Public Sewer: Public Sewer
Interior Features

Roof: Tile Interior Features: Ceiling Fan(s),Central Vacuum,Track Lighting,Primary Suite Property Appliances: Dishwasher,Microwave Fireplace: Living Room Flooring: Carpet,Wood
Cooling Features

Central Air Air Conditioning

Heating Source

Central Has Heating

Fireplace

Fireplace Features: Living Room Has Fireplace: 1

Building Information

Year Built: 1938 Roof: Tile
Security Features

Carbon Monoxide Detector(s),Smoke Detector(s)
Pool Features

None

Laundry Features

Inside

Patio And Porch

Patio

Lot Details

Lot Dimensions Source: Vendor Enhanced Lot Size Acres: 0.1349
Lot Size Source: Assessor Lot Size Square Feet: 5876

Listing Price Information

Original List Price: 3,095,000 Listing Contract Date: 2026-06-15
Lease Information

Listing Agreement: Exclusive Right To Sell

Tax Information

Parcel Number: 19903230

Garage and Parking

Garage Description: Garage Attached Garage: Yes

Homeowners Association

Other Property Info

Source Listing Status: Active Source Neighborhood: 1A - Seal Beach Directions: PCH to Marina Dr., Turn on 6th St. Source Property Type: Residential Area: 1A - Seal Beach Property SubType: Duplex
Building and Construction

Property Age: 88 Common Walls: No Common Walls Structure Type: Duplex Year Built Source: Estimated Total Square Feet Living: 3607 Entry Level: 1 Entry Location: 1 Levels or Stories: Three Or More Structure Type: Duplex

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Nearby Home Value

Address	Estimate	Bed	Bath	Sq. Ft	Lot Size
341 10th, Seal Beach, CA, 90740	$1,950,000	3	3	1,700	1,700 SqFt

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ByOwner last updated this listing 06/17/2026 @ 07:06

MLS: NP26126800 LISTED BY: Timothy Carr, Pacific Sotheby's Int'l Realty 949-554-1200 SOURCE: CRMLS