Active

$400,000

For sale

427 9t••••• Ave Unit 809 (Sign up for 50 free credits to unlock)San Diego, CA 92101

1Beds

1Baths

826Sq Ft Living

-Sq Ft Lot

2005Year Built

Property Description

Prime downtown living at Diamond Terrace, located directly across the street from Petco Park. This well-appointed 1-bedroom condo offers an open, light-filled layout ideal for both comfortable living and entertaining. The kitchen flows seamlessly into the living area, while the spacious bedroom provides a relaxing retreat from the city energy. Enjoy a secure, boutique-style community in one of San Diego's most walkable locations-steps to the Gaslamp Quarter, Marina District, dining, nightlife, waterfront, and public transit. Perfect as a primary residence, second home, or investment opportunity, this condo places you at the center of downtown San Diego's vibrant lifestyle. Live Where San Diego Comes Alive - Diamond Terrace at Petco Park Welcome to this beautifully positioned 1-bedroom condo in the iconic Diamond Terrace, located directly across the street from Petco Park in the heart of downtown San Diego. This is urban living at its finest-step outside your door and you're instantly surrounded by world-class dining, nightlife, waterfront attractions, and year-round entertainment. Inside, the residence offers a smart, open layout filled with natural light, perfect for both everyday living and entertaining. The kitchen flows seamlessly into the living area, while the spacious bedroom provides a comfortable retreat from the city energy below. Whether you're enjoying a quiet night in or hosting before a game or concert, this home delivers flexibility and style. Diamond Terrace is a secured, boutique-style community known for its unbeatable location and walkability. Enjoy easy access to the Gaslamp Quarter, Marina District, Seaport Village, and trolley stations-no car required. Ideal as a primary residence, second home, or investment opportunity, this condo places you at the center of everything San Diego has to offer. If you've been looking for a home that captures the excitement, convenience, and lifestyle of downtown living-this is it.

Property Facts & Features

Property Type: Condos
Status: Active
Listed: Jan 17, 2026
Price per Sq Ft: $484/sqft
ZIP Code: 92101
Full Baths: 1
Stories: 1
Garage: 1 space
Parking: None Known
Heating: Forced Air Unit
Cooling: Central Forced Air
HOA Fee: $925/mo
Property Tax (2025): $4,723/yr
Assessed Value: $368,642
Last Sold: $280,000 · Jan 24, 2010
Neighborhood: Downtown San Diego
County: San Diego
School District: San Diego Unified School District
Cats: Allowed
Dogs: Allowed

Estimated Value

$398,800Range $328,700 to $506,489

Automated estimate. Not an appraisal.

Features & Amenities

Bedrooms

Bedrooms: 1
Bedrooms Possible: 1
Primary Bedroom Dimensions: 12x11

Bathrooms

Total Bathrooms: 1
Full Bathrooms: 1

Utilities

Sewer: Sewer Connected
Water Source: Available, Meter on Property

Appliances

Dishwasher
Disposal
Dryer
Fire Sprinklers
Garage Door Opener
Microwave
Refrigerator
Washer
Electric Oven
Electric Cooking
Laundry Features: Electric

Other Rooms

Bedroom Entry Level
Dining Area
Living Room Dimensions: 12x21
Exercise Room: Yes

Multi-Unit Info

Number of Units In Community: 1
Number of Units: 113

Interior Features

Flooring: Laminate, Stone

Garage and Parking

Garage Spaces: 1
Parking Features: None Known
Parking Total: 1

Kitchen and Dining

Kitchen Dimensions: 10x10

Heating and Cooling

Cooling Features: Central Forced Air
Heating Features: Forced Air Unit
Heating Fuel: Electric
Heating: Yes
Number of Fireplaces: 0

Other Property Info

Source Listing Status: Active
County: San Diego
Ownership: Condominium
Area: SAN DIEGO DOWNTOWN (92101)
Property Subtype: condo
Source Neighborhood: Downtown (DT)
Parcel Number: 535-126-17-09
Subdivision: Downtown (DT)
Property Subtype: Condominium

Homeowners Association

Association: Yes
Association Fee: 925
Association Fee Frequency: Monthly
Association Fee Includes: Common Area Maintenance, Exterior (Landscaping), Exterior Bldg Maintenance, Hot Water, Limited Insurance, Sewer, Trash Pickup, Water
Calculated Total Monthly Association Fees: 925
Association Name: Diamond Terrrace
Pets Allowed: Allowed w/Restrictions

Building and Construction

Total Square Feet Living: 826
Year Built: 2005
Building Area Units: Sqft
Building Exterior Type: Brick, Concrete, Glass
Building Name: Diamond Terrace
Entry Level: 1
Levels: 1 Story
Living Area Units: Sqft
Property Age: 21
Roof: Concrete
Levels or Stories: 14
Year Built Source: Assessor

Exterior and Lot Features

Public Street
Sidewalks
Street Paved
West of I-5

Amenities and Community Features

Community Features: BBQ, Clubhouse/Rec Room, Exercise Room

Price & Event History

Date	Event	Price	$/Sq Ft
Aug 30, 2026	Price Changed	$400,000	$484
Jun 23, 2026	Price Changed	$450,000	$545
May 7, 2026	Price Changed	$475,000	$575
Jan 17, 2026	Listed	$495,000	$599
Jan 24, 2010	Sold	$280,000	$339
Nov 13, 2009	Listing removed	$280,000	$339
Nov 7, 2009	Price Changed	$280,000	$339
Nov 2, 2009	Price Changed	$279,000	$338
Oct 25, 2009	Relisted	$280,000	$339
Mar 2, 2009	Listing removed	$289,000	$350
Feb 8, 2009	Listed	$280,000	$339
Aug 29, 2005	Sold	$354,000	$429

Property Tax History

Year	Tax	Assessed	Land	Building
2025	$4,723	$368,642	$98,739	$269,903
2024	$4,529	$361,414	$96,803	$264,611
2023	$4,425	$347,382	$93,045	$254,337
2022	$4,305	$340,571	$91,221	$249,350
2021	$4,271	$333,894	$89,433	$244,461
2020	$4,216	$330,471	$88,516	$241,955
2019	$4,138	$323,992	$86,781	$237,211
2018	$3,871	$317,640	$85,080	$232,560
2017	$3,777	$311,412	$83,412	$228,000
2016	$3,713	$305,307	$81,777	$223,530
2015	$3,656	$300,722	$80,549	$220,173
2014	$3,585	$294,833	$78,972	$215,861

Nearby Schools

6/10
San Diego High School
Public · High · Grades 9-12
0.7 mi
4/10
Sherman Elementary School
Public · Elementary · Grades K-5
0.8 mi
3/10
Urban Discovery Academy Charter
Public · Elementary, Middle, High · Grades K-12
0.4 mi
NR
Our Lady's School
Private · Elementary, Middle
0.8 mi