$2,550,000
SOLD JUL 9, 2025

1515 Union St Unit PH4 San Francisco, CA 94123

Cow Hollow Neighborhood
2 Beds
2 Baths
1,618 Sq Ft
$2,200/mo HOA Fee

Recently Sold

$1,576 Per Sq Ft

6% Below List Price

100 Days on Market

Highlights

  • Views of San Francisco
  • Unit is on the top floor
  • Rooftop Deck
  • Sherman Elementary Rated A-
  • New Construction
  • 4-minute walk to Allyne Park

About This Home

As of July 2025

Perched atop Union House in prestigious Pacific Heights, Penthouse Five is a breathtaking retreat that defines sophisticated city living. This northwest-facing, seventh-floor residence is one of the largest available, offering 1,943 square feet of refined elegance with three bedrooms and two-and-a-half baths. The showpiece of this home is the expansive private rooftop terrace, among the largest in the building, where panoramic views of the Golden Gate Bridge, Palace of Fine Arts, and the shimmering San Francisco Bay create a stunning backdrop for entertaining or quiet relaxation. Inside, the open-concept living area is designed for both comfort and style, featuring a chef's kitchen with top-tier appliances, a spacious island with a built-in wine fridge, and a seamless flow into the dining and family room. Residents enjoy world-class amenities, including a seven-day-a-week doorman, a shared rooftop lounge, private parking, and additional storage. Experience the pinnacle of luxury in one of San Francisco's most sought-after addresses.

Last Agent to Sell the Property

Andres Ardila

Compass License #02080102 Listed on: 03/06/2025

Compass

Co-Listed By

David Costello

Compass License #01947195

Last Buyer's Agent

Andres Ardila

Compass License #02080102 Listed on: 03/06/2025

Compass

Property Details

Home Type

  • Condominium

Est. Annual Taxes

  • $75,847

Year Built

  • Built in 2020 | New Construction

Lot Details

  • Northeast Facing Home
  • Level Lot
  • Low Maintenance Yard

HOA Fees

  • $2,200 Monthly HOA Fees

Property Views

  • San Francisco
  • Panoramic
  • City Lights
  • Hills

Home Design

  • Penthouse
  • Contemporary Architecture
  • Modern Architecture
  • Concrete Foundation
  • Composition Roof
  • Metal Siding

Interior Spaces

  • 1,618 Sq Ft Home
  • Double Pane Windows
  • Great Room
  • Family Room Off Kitchen
  • Video Cameras

Kitchen

  • Built-In Gas Oven
  • Gas Cooktop
  • Range Hood
  • Built-In Freezer
  • Built-In Refrigerator
  • Ice Maker
  • Dishwasher
  • Wine Refrigerator
  • Kitchen Island
  • Marble Countertops
  • Disposal

Flooring

  • Wood
  • Marble

Bedrooms and Bathrooms

  • Main Floor Bedroom
  • Walk-In Closet
  • 2 Full Bathrooms
  • Marble Bathroom Countertops
  • Secondary Bathroom Double Sinks
  • Soaking Tub in Primary Bathroom
  • Bathtub
  • Separate Shower

Laundry

  • Laundry Room
  • 220 Volts In Laundry
  • Gas Dryer Hookup

Parking

  • 1 Car Attached Garage
  • Electric Vehicle Home Charger
  • Side by Side Parking
  • Garage Door Opener

Eco-Friendly Details

  • Energy-Efficient Construction
  • Energy-Efficient Insulation

Utilities

  • Central Heating and Cooling System
  • Heating System Uses Gas
  • Cable TV Available

Additional Features

  • Rooftop Deck
  • Unit is on the top floor

Listing and Financial Details

  • Assessor Parcel Number 0546-110

Community Details

Overview

  • Association fees include common areas, elevator, insurance on structure, security, sewer, trash
  • 41 Units
  • Union House HOA
  • Mid-Rise Condominium
  • 7-Story Property

Amenities

  • Rooftop Deck
  • Community Barbecue Grill

Pet Policy

  • Dogs and Cats Allowed

Security

  • Carbon Monoxide Detectors
  • Fire and Smoke Detector
  • Fire Suppression System

Property Details

Home Type

Condominium

Est. Annual Taxes

$75,847

Year Built

Built in 2020 | New Construction

Lot Details

0

HOA Fees

$2,200 per month

Listing Details

  • Property Type: Residential
  • Property Sub Type: Condominium
  • Subtype Description: Custom, Luxury, Mid-Rise (4-8)
  • Architectural Style: Contemporary, Modern/High Tech
  • Property Condition: New Construction
  • Property Faces: Northeast
  • Location Of Unit: Penthouse(s), Top Floor
  • Stories: 7
  • Year Built: 2020
  • Special Features: NewHome

Interior Features

  • Bedrooms: 2
  • Master Bathroom Features: Marble, Shower Stall(s), Soaking Tub
  • Master Bedroom Features: Walk-In Closet
  • Bathrooms: 2
  • Full Bathrooms: 2
  • Dining Room Features: Dining/Family Combo
  • Living Room Features: View
  • Number Of Rooms: 5
  • Appliances: Built-in Freezer, Built-in Gas Oven, Built-in Refrigerator, Dishwasher, Disposal, ENERGY STAR Qualified Appliances, Gas Cook Top, Hood Over Range, Ice Maker, Wine Refrigerator
  • Bathroom Features: Double Sinks, Marble, Tub
  • Family Room Features: Great Room, View
  • Flooring: Marble, Wood
  • Kitchen Features: Island, Island w/Sink, Kitchen/Family Combo, Marble Counter, Pantry Cabinet, Pantry Closet
  • Laundry Features: Gas Hook-Up, Inside Room, Stacked Only
  • Main Level: Bedroom(s), Dining Room, Family Room, Full Bath(s), Kitchen, Living Room, Primary Bedroom
  • Price Per Square Foot: 1576.02
  • Room Type: Dining Room, Family Room, Great Room, Kitchen, Laundry, Primary Bathroom, Primary Bedroom
  • Square Footage: 1618.00
  • Window Features: Dual Pane Full

Exterior Features

  • Construction Materials: Concrete, Glass, Metal
  • Foundation: Concrete
  • Patio And Porch Features: Roof Deck
  • Roof: Composition
  • View: City, City Lights, Hills, Panoramic, San Francisco

Garage/Parking

  • Parking Access: Side by Side
  • Parking Features: Attached, EV Charging, Garage Door Opener, Mechanical Lift, Underground Parking
  • Parking Fees: No
  • Parking Type: On Site - Assigned (Condo Only)
  • Total Parking Spaces: 1.00

Utilities

  • Cooling: Central
  • Electric: 220 Volts in Laundry
  • Heating: Central, Gas
  • Security Features: Carbon Mon Detector, Fire Alarm, Fire Extinguisher, Fire Suppression System, Secured Access, Smoke Detector, Video System
  • Sewer: Public Sewer, Sewer in Street
  • Utilities: Cable Available, Cable Connected, Public
  • Water Source: Public

Association/Amenities

  • Association Features: Barbeque, Roof Deck
  • Association Name: Union House HOA

Condo/Co-op/Association

  • Unit: PH4
  • Association Fee: 2200
  • Association Fee Frequency: Monthly
  • Association Fee Includes: Common Areas, Elevator, Insurance on Structure, Security, Sewer, Trash

Schools

  • School District: San Francisco

Lot Info

  • Assessor Parcel Number: 0546-110
  • Land Use: Residential
  • Lot Features: Low Maintenance, Private
  • Lot Size Acres: 0.3801
  • Lot Size Sq Ft: 16556.00
  • Lot Size Units: SqFt
  • Price Per Acre: 6708760.85
  • Special Zones: Seismic Hazard Zone
  • Topography: Level

Green Features

  • Energy Efficient: Appliances, Construction, Insulation, Water Heater

Rental Info

  • Pets Allowed: Cats OK, Dogs OK, Service Animals OK

Multi Family

  • Number Of Units: 41

MLS Schools

  • School District County: San Francisco

Range of Values:

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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Property History

Date Event Price Change Sq Ft Price
07/09/2025 07/09/25 Sold $2,550,000 -5.6% $1,576 / Sq Ft
06/14/2025 06/14/25 Pending -- -- --
03/06/2025 03/06/25 For Sale $2,700,000 -- $1,669 / Sq Ft
Source: San Francisco Association of REALTORS® MLS

Tax History Compared to Growth

Source: Public Records

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $75,847 $6,535,489 $696,464 $5,839,025
2024 $75,847 $6,407,343 $682,808 $5,724,535
2023 $74,745 $6,281,710 $669,420 $5,612,290
2022 $73,387 $6,158,541 $656,295 $5,502,246
2021 $72,110 $6,037,786 $643,427 $5,394,359
Source: Public Records

Agents Affiliated with this Home

  • Andres Ardila

    Seller's Agent in 2025

    Andres Ardila

    Compass

    (415) 608-1003

    11 in this area

    58 Total Sales

    Andres Ardila
    Section Image
  • David Costello

    Seller Co-Listing Agent in 2025

    David Costello

    Compass

    (415) 660-9955

    9 in this area

    47 Total Sales

    David Costello
    Section Image
See All Agents

Map

Source: San Francisco Association of REALTORS® MLS

MLS Number: 425015294

San Francisco Association of REALTORS® MLS

APN: 0546-110

California San Francisco County San Francisco 94109 Cow Hollow

1515 Union St Unit PH4, San Francisco, CA

This home is located at 1515 Union St Unit PH4, San Francisco, CA 94123 and is currently priced at $2,550,000, approximately $1,576 per square foot. This property was built in 2020. 1515 Union St Unit PH4 is a home located in San Francisco County with nearby schools including Sherman Elementary, Marina Middle School, and Saint Brigid Academy.

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

San Francisco Association of REALTORS® MLS IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Information is deemed reliable but not guaranteed.

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