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Triplex with Solar Water Heating
For Sale
$2,500,000

648 10th Avenue, Honolulu, HI 96816

Three-unit triplex with split A/C throughout and solar water heating on an R-5 zoned lot.

Property Size5,020 SF
Lot Size0.17 Acres
Price / SF$498.01
Days on Market54

Property Features for 648 10th Avenue

General Information

Standard status Active
Size 5,020 SF
Total Parking Spaces 4
Lot size 0.17 Acres
Property subtype Duplex
Zoning R-5

Amenities

split A/C
dumbwaiter elevator
solar water heating
46 PV panels
copper gutters
koi pond
tea house

Building Details

Building Size 5,020 SF
Year Built 1978
Year Renovated 2025
Buildings 1
Construction hollow tile
Listing Agency: Sanford R. Ujimori Realty, Inc
Listed By: Sanford R Ujimori · License #RB-17295
Source: Careyluxury
Added: Jun 10 Changed: Jul 30 Last Checked: Aug 1 at 10:49AM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Sanford R. Ujimori Realty, Inc

Investment Insights

Based on property information with market context.

This triplex features a flexible, three-area layout that can operate as separate living spaces: a two-bedroom/two-bath primary suite plus a four-bedroom/four-bath unit, along with a separate one-bedroom/two-bath space. The home includes two primary suites, split A/C throughout, a dumbwaiter elevator, and durable hollow tile construction designed for low-maintenance ownership. An enclosed four-car garage supports resident parking and storage needs.

Set on a 7,500 SF R-5 zoned lot, the property is presented with legal duplex potential and offers Diamond Head views. The home’s energy features include solar water heating and 46 PV panels.

Recent upgrades include a new roof in 2025, two new water heaters, and a remodel of the downstairs two-bedroom/two-bath unit in 2023. Appliances are listed as less than three years old. Outdoor amenities include copper gutters, a koi pond, and a tea house. Built in 1978, the property is located at 648 10th Avenue, Honolulu, HI 96816.

Key Highlights

  • Three separate living areas: 2BD/1BA, 1BD/2BA, and 4BD/4BA
  • 7,500 SF R‑5 zoned lot with legal duplex potential and Diamond Head views
  • New roof in 2025; two new water heaters

Financial Insights For Multifamily LT 5

Simulate Cap Rate and NOI

NOI Build-Up
Vacancy
income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
EGI (Effective Gross Income)
gross rent minus vacancy losses — the realistic income before paying operating costs.
OpEx (Operating Expenses)
recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
NOI (Net Operating Income)
income a property generates after operating costs but before financing and taxes.

Component $ $/SF
Gross rent $153.6k $30.60
− Vacancy −$10.8k −$2.15
EGI $142.8k $28.45
− OpEx −$42.8k −$8.53
NOI $100.0k $19.91
5,020 SF · lease $30.60/SF/yr · vacancy 7.03% · expense 30.00%

Alternative Uses

Best Use
Multifamily LT 5
$1.43M
$1.25M – $1.67M (±1% cap)
NOI $99,969 @ 7.0% cap · market cap 4.00%
Second Best
Apartment 5plus
$1.31M
$1.15M – $1.53M (±1% cap)
NOI $92,041 @ 7.0% cap · market cap 3.68%
Theoretical Best
Specialty Retail
$2.03M
$1.78M – $2.37M (±1% cap)
NOI $142,368 @ 7.0% cap · market cap 5.69%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Triplexes

Location Intelligence

Demographics for 96816, HI

51,586
Population
19,818
Households
2.6
Avg Household Size
45
Median Age
48%
College-Educated
94%
High-School Grad
9.6 sq mi
ZIP Area
5,374
Density / Sq Mi
$114,744
Median Household Income
$48,929
Median Earnings
$1,879
Median Rent
$1,121,400
Median Home Value

Market

Vacancy Rate% for Multifamily in West region

7% 2022
7.8% 2023
8.6% 2024
8.6% 2025
Rey
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Frequently Asked Questions

What type of property is this?
Triplex - Three-unit triplex with split A/C throughout and solar water heating on an R-5 zoned lot.
Where is this triplex located?
The property is located at 648 10th Avenue Honolulu, HI.
What is the asking price?
The asking price for this property is $2,500,000.
What are key features of this property?
This property features: Three separate living areas: 2BD/1BA, 1BD/2BA, and 4BD/4BA; 7,500 SF R‑5 zoned lot with legal duplex potential and Diamond Head views; New roof in 2025; two new water heaters
More about this property
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