Search
Two-Residence Townhouse Duplex
New
For Sale
$2,398,000

1710-1712 Gum ST, San Mateo, CA 94402

Two attached homes provide private garages, balconies, and flexible owner-occupant or rental use.

Property Size2,940 SF
Days on Market7

Property Features for 1710-1712 Gum ST

General Information

Standard status Active
Size 2,940 SF
Total Parking Spaces 2
Property subtype Duplex

Site & Location

Highway Access Yes
Public Transit Yes

Units

Unit Mix 1 x 2BR/2.5BA, 1 x 2BR/2.5BA with loft
Multifamily Units 2

Taxes and HOA fees

Annual Taxes $33,154

Building Details

Building Size 2,940 SF
Year Built 2004
Construction contemporary
Listing Agency: Coldwell Banker Realty
Listed By: Tami Chiu · License #01414538
Source: Johnpaye
Added: Sep 4 Changed: Sep 9 Last Checked: Sep 10 at 7:36AM

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 Coldwell Banker Realty

Investment Insights

Based on property information with market context.

Built in 2004, this duplex at 1710-1712 Gum ST comprises two townhouse-style residences on one lot. Each home includes 2 bedrooms and 2.5 baths, along with wood flooring, high ceilings, recessed lighting, a gourmet kitchen, air conditioning, and in-unit laundry. Both residences also feature a primary suite with an en-suite bath, soaking tub, and private outdoor space. One residence adds a backyard with a built-in BBQ gas line and irrigated vegetable garden beds; the other includes a loft that may function as a third bedroom, plus a side patio. Each unit has an attached one-car garage with additional storage.

The property is steps from Hayward Park Caltrain and near Starbucks, restaurants, shopping, and major freeways. The two-home configuration supports living in one residence while renting the other, or accommodating a multi-generational household.

Key Highlights

  • Two townhouse residences on one lot
  • Built in 2004
  • Each residence offers 2 bedrooms and 2.5 baths

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
$73,514
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
3.07%
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%
$1,470,280 $1.5M
Cap Rate 7%
$1,050,200 $1.1M
Cap Rate 9%
$816,822 $816.8K
Market Conditions
NOI Build-Up for 2,940 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
$111.1K $37.80/SF
− Vacancy
−$6.1K −$2.08/SF
EGI
$105.0K $35.72/SF
− OpEx
−$31.5K −$10.72/SF
NOI
$73.5K $25.00/SF
Area
San Mateo, CA
Vacancy
5.50%
Lease Rate
$37.80 /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%
$1,470,280
Cap Rate 7%
$1,050,200
Cap Rate 9%
$816,822

Alternative Uses

Best Use
Multifamily LT 5
$1.05M
$918.9K – $1.23M (±1% cap)
NOI $73,514 @ 7.0% cap · market cap 3.07%
Second Best
Apartment 5plus
$948.0K
$829.5K – $1.11M (±1% cap)
NOI $66,362 @ 7.0% cap · market cap 2.77%
Theoretical Best
Office A
$1.16M
$1.02M – $1.36M (±1% cap)
NOI $81,398 @ 7.0% cap · market cap 3.39%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick Grocery & Convenience Store Tanning Salon (Bike/Boat/Book/etc) Store Locksmith Clothing & Fashion Store Florist

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
Yes
Highway access

Location Intelligence

Trade Area within ½ mile

3,057
Businesses Nearby

Demographics for 94402, CA

25,879
Population
10,623
Households
2.4
Avg Household Size
42
Median Age
69%
College-Educated
95%
High-School Grad
5.1 sq mi
ZIP Area
5,074
Density / Sq Mi
$179,683
Median Household Income
$104,257
Median Earnings
$3,476
Median Rent
$2,000,001
Median Home Value

Market

Vacancy Rate% for Multifamily in West region

7% 2022
7.8% 2023
8.6% 2024
8.6% 2025
Rey
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.

Frequently Asked Questions

What type of property is this?
Duplex - Two attached homes provide private garages, balconies, and flexible owner-occupant or rental use.
Where is this duplex located?
The property is located at 1710-1712 Gum ST San Mateo, CA.
What is the asking price?
The asking price for this property is $2,398,000.
What are key features of this property?
This property features: Two townhouse residences on one lot; Built in 2004; Each residence offers 2 bedrooms and 2.5 baths
More about this property
Thanks! Your message was sent.
Error! Your message wasn't sent.
Please enter your name
Please enter email
Please enter the email in the correct format
Please enter phone
Please enter the number in the correct format
Please enter message