NOT LISTED FOR SALE

1515 Union St Unit PH5 San Francisco, CA 94123

Cow Hollow Neighborhood

Estimated Value: $3,684,000 - $4,821,000

3 Beds
2.5 Baths
1,943 Sq Ft
$2,200/mo HOA Fee

Last Sold April 11, 2025

Last sale price $4,425,000 $2,277 Per Sq Ft

Est. 3% decrease in value since last sale

Current estimated payment $29,280/month

8 Days on Market

Highlights

  • Views of San Francisco
  • New Construction
  • Built-In Refrigerator
  • Sherman Elementary Rated A-
  • Rooftop Deck
  • 4-minute walk to Allyne Park

About This Home

As of April 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

Arrian Binnings

Christie's Int'l Real Estate License #01811368

Christie's Int'l Real Estate

Property Details

Home Type

  • Condominium

Est. Annual Taxes

  • $40,326

Year Built

  • Built in 2020 | New Construction

Lot Details

  • 0.38

HOA Fees

  • $2,200 Monthly HOA Fees

Property Views

  • Marina
  • Bay
  • San Francisco
  • Bridge
  • City Lights

Home Design

  • Contemporary Architecture
  • Traditional Architecture
  • Modern Architecture
  • Concrete Foundation
  • Pillar, Post or Pier Foundation
  • Ceiling Insulation
  • Floor Insulation
  • Wood Siding

Interior Spaces

  • 1,943 Sq Ft Home
  • Double Pane Windows
  • Great Room
  • Family Room Off Kitchen
  • Living Room
  • Dining Room
  • Home Office
  • Laundry closet

Kitchen

  • Built-In Gas Oven
  • Built-In Gas Range
  • Built-In Refrigerator
  • Ice Maker
  • Dishwasher
  • Marble Countertops
  • Disposal

Flooring

  • Wood
  • Marble

Bedrooms and Bathrooms

  • Walk-In Closet
  • Marble Bathroom Countertops
  • Dual Flush Toilets
  • Dual Vanity Sinks in Primary Bathroom
  • Low Flow Toliet
  • Soaking Tub in Primary Bathroom
  • Separate Shower

Home Security

Parking

  • 1 Car Attached Garage
  • Enclosed Parking
  • Side by Side Parking
  • Garage Door Opener
  • Assigned Parking

Utilities

  • Central Heating and Cooling System
  • Internet Available
  • Cable TV Available

Additional Features

  • Energy-Efficient Appliances
  • Rooftop Deck

Listing and Financial Details

  • Assessor Parcel Number 0546-111

Community Details

Overview

  • Association fees include common areas, door person, elevator, gas, insurance on structure, maintenance exterior, ground maintenance, management, security, sewer, trash, water
  • 41 Units
  • Union House Owners Association, Phone Number (800) 400-2248
  • Mid-Rise Condominium
  • 8-Story Property

Amenities

  • Rooftop Deck
  • Community Barbecue Grill

Pet Policy

  • Limit on the number of pets
  • Dogs and Cats Allowed

Security

  • Carbon Monoxide Detectors
  • Fire and Smoke Detector

Property Details

Home Type

Condominium

Est. Annual Taxes

$40,326

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: Luxury, Mid-Rise (4-8)
  • Architectural Style: Contemporary, Modern/High Tech, Traditional
  • Property Condition: New Construction
  • Stories: 8
  • Year Built: 2020
  • Special Features: NewHome

Interior Features

  • Bedrooms: 3
  • Master Bathroom Features: Double Sinks, Dual Flush Toilet, Low-Flow Toilet(s), Marble, Shower Stall(s), Soaking Tub, Walk-In Closet
  • Master Bedroom Features: Walk-In Closet
  • Bathrooms: 3
  • Half Bathrooms: 1
  • Full Bathrooms: 2
  • Appliances: Built-in Gas Oven, Built-in Gas Range, Built-in Refrigerator, Dishwasher, Disposal, Ice Maker
  • Bathroom Features: Marble
  • Flooring: Marble, Wood
  • Kitchen Features: Kitchen/Family Combo, Marble Counter, Pantry Closet
  • Laundry Features: Cabinets, Laundry Closet
  • Price Per Square Foot: 2277.41
  • Room Type: Dining Room, Great Room, Kitchen, Living Room, Primary Bathroom, Primary Bedroom, Office, Possible Guest
  • Square Footage: 1943.00
  • Window Features: Dual Pane Full

Exterior Features

  • Construction Materials: Ceiling Insulation, Concrete, Floor Insulation, Wall Insulation, Wood
  • Driveway Sidewalks: Paved Driveway, Paved Sidewalk
  • Foundation: Concrete, Pillar/Post/Pier
  • Patio And Porch Features: Roof Deck
  • Road Surface Type: Paved
  • View: Bay, Bridges, City, City Lights, Marina, San Francisco

Garage/Parking

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

Utilities

  • Cooling: Central
  • Heating: Central
  • Security Features: Carbon Mon Detector, Secured Access, Smoke Detector
  • Sewer: Public Sewer
  • Utilities: Cable Available, Internet Available, Natural Gas Available, Natural Gas Connected
  • Water Source: Public

Association/Amenities

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

Condo/Co-op/Association

  • Unit: PH5
  • Association Fee: 2200
  • Association Fee Frequency: Monthly
  • Association Fee Includes: Common Areas, Door Person, Elevator, Gas, Insurance on Structure, Maintenance Exterior, Maintenance Grounds, Management, Security, Sewer, Trash, Water
  • Phone: (800) 400-2248

Lot Info

  • Assessor Parcel Number: 0546-111
  • Land Use: Residential
  • Lot Features: Corner
  • Lot Size Acres: 0.3801
  • Lot Size Sq Ft: 16556.00
  • Lot Size Units: SqFt
  • Price Per Acre: 11641673.24

Green Features

  • Energy Efficient: Appliances

Rental Info

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

Multi Family

  • Number Of Units: 41

Ownership History

Date Name Owned For Owner Type

Purchase Details

Listed on
Mar 6, 2025
Closed on
May 23, 2025
Sold by
Prochaska Martini Judith J
Bought by
Judith Prochaska Martini Revocable Trust and Martini
Seller's Agent
Andres Ardila
Compass
Buyer's Agent
Arrian Binnings
Christie's Int'l Real Estate
List Price
$4,625,000
Sold Price
$4,425,000
Premium/Discount to List
-$200,000
-4.32%
Views
92
Current Estimated Value
$4,294,720

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
-$130,280
Avg. Annual Appreciation
-33.58%
Original Mortgage
$700,000
Interest Rate
6.76%

Purchase Details

Closed on
Jun 24, 2020
Sold by
Dm 2465 Van Ness Llc
Bought by
Martini Judith J Prochaska

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$750,000
Interest Rate
6.25%
Mortgage Type
New Conventional
Source: Public Records

Range of Values:

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Sold Price
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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Purchase History

Date Buyer Sale Price Title Company
Judith Prochaska Martini Revocable Trust -- None Listed On Document
Martini Judith J Prochaska -- Chicago Title
Source: Public Records

Mortgage History

Date Status Borrower Loan Amount
Previous Owner Martini Judith J Prochaska $700,000
Previous Owner Prochaska Martini Judith J $100,000
Previous Owner Martini Judith J Prochaska $750,000
Source: Public Records

Property History

Date Event Price Change Sq Ft Price
04/11/2025 04/11/25 Sold $4,425,000 -4.3% $2,277 / Sq Ft
03/14/2025 03/14/25 Pending -- -- --
03/06/2025 03/06/25 For Sale $4,625,000 -- $2,380 / 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 $40,326 $3,442,539 $366,859 $3,075,680
2024 $40,326 $3,375,039 $359,666 $3,015,373
2023 $39,734 $3,308,863 $352,614 $2,956,249
2022 $39,003 $3,243,984 $345,700 $2,898,284
2021 $38,321 $3,180,377 $338,922 $2,841,455
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

    56 Total Sales

    Section Image
  • David Costello

    Seller Co-Listing Agent in 2025

    David Costello

    Compass

    (415) 660-9955

    9 in this area

    46 Total Sales

    Section Image
  • Arrian Binnings

    Buyer's Agent in 2025

    Arrian Binnings

    Christie's Int'l Real Estate

    (415) 830-2384

    6 in this area

    143 Total Sales

    Section Image

  • S

    Buyer Co-Listing Agent in 2025

    Sejal Binnings

    Christie's International Real

    (415) 515-5266

    1 in this area

    12 Total Sales

    Section Image
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Map

Source: San Francisco Association of REALTORS® MLS

MLS Number: 425015303

San Francisco Association of REALTORS® MLS

APN: 0546-111

California San Francisco County San Francisco 94109 Cow Hollow

1515 Union St Unit PH5, San Francisco, CA

This home is located at 1515 Union St Unit PH5, San Francisco, CA 94123 since 06 March 2025 and is currently estimated at $4,294,720, approximately $2,210 per square foot. This property was built in 2020. 1515 Union St Unit PH5 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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