$3,095,000
 $16,615 est/mo Sourced by Back At You

142 144 6th Street,Seal Beach, CA 90740

Seal Beach, CA 90740

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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 constructing 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 3.5 bathrooms. The main level features a generous family room, kitchen, dining area, living room, bedroom, a full bathroom and a half 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 alleyan 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.

Details

MLS #NP26126800
Listing TypeFor Sale
StyleDuplex
Sub-TypeResale
StatusActive
Year1938
Days On Site68
Listing Provided ByPacific Sotheby's Int'l Realty | Timothy Carr

Features

Bed(s)4
Bath(s) 5 Total
SQ Feet3,607
Garage4
Story(s)2
Units2
Acreage0.13
Property ViewYes

Interior

CoolingCentral Air
HeatingCentral
Heating Yes / NoYes
Cooling Yes / NoYes
Interior FeaturesCeiling Fans, Central Vacuum, Track Lighting, Primary Suite
AppliancesDishwasher, Microwave
Fireplace Yes / NoYes

Exterior

RoofTile
Security FeaturesCarbon Monoxide Detectors, Smoke Detectors
Lot FeaturesZero To One Unit Acre

Parking

Attached Garage Yes / NoYes
Parking FeaturesGarage
Garage Yes / NoYes

Utilities

SewerPublic Sewer

Location

Community FeaturesBiking, Sidewalks, Water Sports

Area Information

StateCA
CountyOrange
CitySeal Beach
Zip Code90740
Area1A Seal Beach
Community NameOld Town (OLDT)
Listing VS Median (in Old Town (OLDT))
Price:
$3,095,000
low | high
Med:
$3,775,000
28.029079159935% of Average
sqft:
3,607
low | high
Med:
3,538
51.912947047408% of Average
$ / sqft:
$858
low | high
Med:
$1,067
25.650335932698% of Average
On site:
68
low | high
Med:
89
76.404494382022% of Average
Sourced by Back At You

Market Activity 90740

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Learn More About This Property

StateCA
CountyOrange
CitySeal Beach
Zip Code90740
Area1A Seal Beach
Community NameOld Town (OLDT)
Listing VS Median (in Old Town (OLDT))
Price:
$3,095,000
low | high
Med:
$3,775,000
28.029079159935% of Average
sqft:
3,607
low | high
Med:
3,538
51.912947047408% of Average
$ / sqft:
$858
low | high
Med:
$1,067
25.650335932698% of Average
On site:
68
low | high
Med:
89
76.404494382022% of Average
Sourced by Back At You
Nearby Listings (Within 1/4 mile)
Price: $2.321M - $3.868M
sqft: 2,500 - 4,500
Nearby Listings Property ImageNearby Listings Details
114 4th Street Property Photo 1
$3,775,000
114 4th Street
Seal Beach, CA 90740
Listing Updated: August 21, 2026 at 10:36:48 PM PDT