117 North Delaware Street, SAN MATEO, CA 94401

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Active Under Contract

est.$1,880,000/month.

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beds. baths. 4,165 Sqft.

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Mortgage Broker

Ray Avanzino
Polaris Capital Partners
Ray@polariscappartners.com
(650) 576-6531
NMLS# 288504
Company NMLS# 01391664

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or Call Now: (650) 576-6531

117 North Delaware Street, SAN MATEO, CA 94401

$1,880,000

Active Under Contract

est.$1,880,000/month.

Start My Approval

beds baths 4,165 Sq.ft.

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Property details for 117 North Delaware Street, SAN MATEO, CA 94401

A high-quality Peninsula duplex with stable income, minimal expense drag, and clearly defined long-term upside.117 N. Delaware Street presents a rare opportunity to acquire a well-located duplex in the heart of San Mateo. The property consists of two large units, each configured as 3 bedrooms and 2 bathrooms with garage parking offering strong fundamentals for both owner-occupiers and long-term investors. With tenants in place for over 20 years, the asset provides stable in-place income and a clear path for predictable rent growth under California rent control guidelines. The property currently generates $7,610 per month ($91,320 annually), with a highly efficient expense. Market rents for comparable units are estimated at approximately $4,500+ per month, indicating meaningful long-term upside. At market levels, the property would generate approximately $108,000. Generous layouts, strong rental demand and a desirable unit mix support long-term growth and income optimization. Don't miss this rare opportunity whether as an investment or a property you could occupy!

Broker details: Gilmartin Group

Listed by: Tim Gilmartin
Co-listing Broker: Gilmartin Group
Co-listing Agent: Kathryn Gerhardt

Property Description

MLS Information

Listing: ML82043896
Listing Last Modified: 2026-06-19

Property Details

Standard Status: Active Under Contract
MLS Status: Contingent
Built in: 1990
Lot size area: 5750 Square Feet

Geographic Data

County: San Mateo

Features

Interior Features

Flooring: Tile, Vinyl, Carpet
Living area: 4165

Exterior Features

Roof type: Shingle
Pool: None
Foundation: Concrete Perimeter

Parking

Garage spaces: 4

Utilities

Sewer: Public Sewer
Water: Public
Heating: Central, Forced Air

Property Information

Tax Information

Tax Annual Amount: $25,839

Rossetti Realty Inc.

117 North Delaware Street, SAN MATEO, CA 94401