← Back to listings
Duplex at 144 6th Street
$3,095,000
144 6th Street
Seal Beach, Orange, 90740
Duplex · 2 units
Active · 3 days on market

Deal numbers

Est. cap rate
1.3%
Assumed rent, all units
$6,580/mo
Units
2
Price per unit
$1,547,500
Est. annual NOI
$39,480
Expense assumption
50%

Estimates only, based on HUD Fair Market Rents (a conservative 40th percentile floor) and a standard 50% operating expense assumption. Not a guarantee of income or value. Ask Alex for a pro forma using comparable rent data.

Run your own numbers

Adjust the assumptions to see cash flow and cash on cash return.

5.0%
50%
25%
7.00%
Effective gross income
$75,012
Operating expenses
$37,506
Net operating income
$37,506
Annual debt service
$185,320
Annual cash flow
-$147,814
Cash on cash return
-19.1%
Down payment
$773,750

Illustration only, using a 30 year loan and your assumptions above. Not a loan offer, financial advice, or a guarantee. Confirm financing and actual rents independently.

Property details

Type
Duplex
Bedrooms
4
Bathrooms
5
Building size
3,607 sqft
Lot size
5,876 sqft
Year built
1938
Stories
2
Garage spaces
4
Style
Cottage,Spanish,Mediterranean
Heating
Central
Cooling
Central Air
Pool
None
View
Mountain(s),City Lights,Neighborhood,Peek-A-Boo,Panoramic
Status
Active
Days on market
3
MLS #
243805881

About this property

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 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.

Location

144 6th Street

Seal Beach, Orange, CA, 90740

Ask Alex about this property

Questions on the numbers, a pro forma, or a tour? Send a note.

Add a phone number above if you want to allow texts. Text permission and advertising measurement are separate choices.

Alex Duarte, DRE# 01970077, First Team Real Estate

144 6th St, Seal Beach CA | Multifamily for Sale