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Remodeled Duplex with ADU
New
For Sale
$689,900

288 Diagonal St, St George, UT 84770

MultiFamily, St George, UT

Property Size2,110 SF
Lot Size0.35 Acres
Price / SF$326.97
Days on Market1

Property Features for 288 Diagonal St

General Information

Property type Residential Multi Family
Property subtype Other
Zoning description Residential, Commercial
Elementary school Legacy Elementary
Middle school Dixie Middle
High school Dixie High
Subdivision Greater St. George
Standard status Active
APN ST-1690-A-2
Size 2,110 SF
Lot size 0.35 Acres

Taxes and HOA fees

Tax Annual Amount 2910

Utilities

Heating system Heat Pump (Heating)
Cooling system Heat Pump

Building Details

Year built 1957
Floors in Building 1
Number of units 2
Roof type Tile
Listing Agency: REALTY EXECUTIVES
Listed By: BRIAN D HILL
Added: Sep 11 Last Checked: Sep 11 at 10:06PM
MLS# 26-276035

Copyright © 2026 Washington County Board of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Investment Insights

Based on property information with market context.

Located at 288 Diagonal St in St George, this duplex contains two separate residences within 2,110 square feet. The main home offers three bedrooms and two bathrooms. The additional dwelling includes a large family room or bedroom, spacious kitchen, full bathroom, stacking washer and dryer, covered carport, porch, and a large storage room. The ADU may also support select business uses or residential occupancy, as stated in the property information.

Built in 1957, the property features heat-pump heating and cooling and a tile roof. The ADU is occupied, while the front residence is vacant. The property is situated in downtown St George on a 0.35-acre parcel.

Key Highlights

  • Two‑residence duplex configuration with a full ADU
  • 2,110 square feet on a 0.35‑acre parcel
  • Main home includes 3 bedrooms and 2 bathrooms

Financial Insights

Estimated NOI and Cap Rate

NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$25,390
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
3.68%
Suggested Prices Based on Cap Rates Cap rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$507,800 $507.8K
Cap Rate 7%
$362,714 $362.7K
Cap Rate 9%
$282,111 $282.1K
Market Conditions
NOI Build-Up for 2,110 SF 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.
Gross rent
$38.0K $18.00/SF
− Vacancy
−$1.7K −$0.81/SF
EGI
$36.3K $17.19/SF
− OpEx
−$10.9K −$5.16/SF
NOI
$25.4K $12.03/SF
Area
Washington County, UT
Vacancy
4.50%
Lease Rate
$18.00 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates Cap rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$507,800
Cap Rate 7%
$362,714
Cap Rate 9%
$282,111

Alternative Uses

Best Use
Multifamily LT 5
$362.7K
$317.4K – $423.2K (±1% cap)
NOI $25,390 @ 7.0% cap · market cap 3.68%
Second Best
Apartment 5plus
$334.9K
$293.1K – $390.7K (±1% cap)
NOI $23,444 @ 7.0% cap · market cap 3.40%
Theoretical Best
Specialty Retail
$581.0K
$508.4K – $677.9K (±1% cap)
NOI $40,673 @ 7.0% cap · market cap 5.90%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

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Current Use

Duplexes

Suggested Use

Top Pick (Bike/Boat/Book/etc) Store Locksmith HVAC Service Veterinary Clinic Florist Wine and Liquor Store

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

2
Residential units

Location Intelligence

Trade Area within ½ mile

1,718
Businesses Nearby

Demographics for 84770, UT

44,505
Population
21,173
Households
2.1
Avg Household Size
36
Median Age
29%
College-Educated
93%
High-School Grad
72.1 sq mi
ZIP Area
617
Density / Sq Mi
$68,174
Median Household Income
$34,586
Median Earnings
$1,344
Median Rent
$407,100
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Vacancy Rate% for Multifamily in West region

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

What type of property is this?
Duplex - Two residences include a three-bedroom main home and an ADU with a kitchen, covered carport, porch, and storage.
Where is this duplex located?
The property is located at 288 Diagonal St St George, UT.
What is the asking price?
The asking price for this property is $689,900.
What are key features of this property?
This property features: Two‑residence duplex configuration with a full ADU; 2,110 square feet on a 0.35‑acre parcel; Main home includes 3 bedrooms and 2 bathrooms
More about this property
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