Siena Terrace Apartments

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(657) 332-2755
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20041 Osterman Rd, Lake Forest, CA 92630

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Siena Terrace

20041 Osterman Rd
Lake Forest, CA 92630
(657) 332-2755
Siena Terrace in Lake Forest, CA - Building Photo
  • 1–2 Bedrooms
  • $2,411-$3,072Pricing
  • 700–900Square Feet

Rent Specials

Save $1,000 on select units. or $199 security deposit special. [Offer good thru Mar 31, 2026]

About Siena Terrace

Siena Terrace is located in the 92630 Zip code of Lake Forest, CA. This community is professionally managed by Equity Residential

Property Contact Info

Floorplan Pricing and Availability

Siena Terrace offers 1 to 2 Bedroom apartments starting from $2,411 and having 700–900 sq ft. Here is the current pricing and availability:

  • 1 Bedroom

    Naples

    From $2,411

    1 Bed, 1 Bath, 700 sq ft
    Available Now

    Availability Details

    PriceAvailability DateUnitSq FtView Details
    $2,525Available Now009-J6700
    $2,462Available Now015-R14700
    $2,414 March 26, 2026005-E3700

    Model Amenities and Features

    Features

    • Air Conditioning
    • Balcony
    • Cable Ready
    • Ceiling Fans
    • Handrails
    • Washer/Dryer

    Kitchen

    • Dishwasher
    • Microwave
    • Refrigerator

    Living Space

    • Views
    • Walk-In Closets
    • Window Coverings

    Outdoor Space

    • Patio

    Unique Features

    • Courtyard

    Model Rent and Fees

    Model Price Range

    • $2,411 - $2,540

    Current Available Pricing

    • $2,414 - $2,525

    Unit 009-J6 Amenities and Features

    Features

    • Air Conditioning
    • Balcony
    • Cable Ready
    • Ceiling Fans
    • Handrails
    • Washer/Dryer

    Kitchen

    • Dishwasher
    • Microwave
    • Refrigerator

    Living Space

    • Views
    • Walk-In Closets
    • Window Coverings

    Outdoor Space

    • Courtyard
    • Patio

    Unit 009-J6 Rent and Fees

    Unit Price

    • $2,525

    Model Rent and Fees

    Model Price Range

    • $2,411 - $2,540

    Unit 015-R14 Amenities and Features

    Features

    • Air Conditioning
    • Balcony
    • Cable Ready
    • Ceiling Fans
    • Handrails
    • Washer/Dryer

    Kitchen

    • Dishwasher
    • Microwave
    • Refrigerator

    Living Space

    • Views
    • Walk-In Closets
    • Window Coverings

    Outdoor Space

    • Courtyard
    • Patio

    Unit 015-R14 Rent and Fees

    Unit Price

    • $2,462

    Model Rent and Fees

    Model Price Range

    • $2,411 - $2,540

    Unit 005-E3 Amenities and Features

    Features

    • Air Conditioning
    • Balcony
    • Cable Ready
    • Ceiling Fans
    • Handrails
    • Washer/Dryer

    Kitchen

    • Dishwasher
    • Microwave
    • Refrigerator

    Living Space

    • Views
    • Walk-In Closets
    • Window Coverings

    Outdoor Space

    • Courtyard
    • Patio

    Unit 005-E3 Rent and Fees

    Unit Price

    • $2,414

    Model Rent and Fees

    Model Price Range

    • $2,411 - $2,540
  • 2 Bedrooms

    Portofino

    From $2,777

    2 Beds, 2 Baths, 900 sq ft
    Available Now

    Availability Details

    PriceAvailability DateUnitSq FtView Details
    $3,067Available Now007-G13900
    $3,072Available Now016-S13900
    $3,055 April 24, 2026015-R9900

    Model Amenities and Features

    Features

    • Air Conditioning
    • Balcony
    • Cable Ready
    • Ceiling Fans
    • Handrails
    • Washer/Dryer

    Kitchen

    • Dishwasher
    • Microwave
    • Refrigerator

    Living Space

    • Views
    • Walk-In Closets
    • Window Coverings

    Outdoor Space

    • Patio

    Unique Features

    • Courtyard

    Model Rent and Fees

    Model Price Range

    • $2,777 - $3,072

    Current Available Pricing

    • $3,055 - $3,072

    Unit 007-G13 Amenities and Features

    Features

    • Air Conditioning
    • Balcony
    • Cable Ready
    • Ceiling Fans
    • Handrails
    • Washer/Dryer

    Kitchen

    • Dishwasher
    • Microwave
    • Refrigerator

    Living Space

    • Views
    • Walk-In Closets
    • Window Coverings

    Outdoor Space

    • Courtyard
    • Patio

    Unit 007-G13 Rent and Fees

    Unit Price

    • $3,067

    Model Rent and Fees

    Model Price Range

    • $2,777 - $3,072

    Unit 016-S13 Amenities and Features

    Features

    • Air Conditioning
    • Balcony
    • Cable Ready
    • Ceiling Fans
    • Handrails
    • Washer/Dryer

    Kitchen

    • Dishwasher
    • Microwave
    • Refrigerator

    Living Space

    • Views
    • Walk-In Closets
    • Window Coverings

    Outdoor Space

    • Courtyard
    • Patio

    Unit 016-S13 Rent and Fees

    Unit Price

    • $3,072

    Model Rent and Fees

    Model Price Range

    • $2,777 - $3,072

    Unit 015-R9 Amenities and Features

    Features

    • Air Conditioning
    • Balcony
    • Cable Ready
    • Ceiling Fans
    • Handrails
    • Washer/Dryer

    Kitchen

    • Dishwasher
    • Microwave
    • Refrigerator

    Living Space

    • Views
    • Walk-In Closets
    • Window Coverings

    Outdoor Space

    • Courtyard
    • Patio

    Unit 015-R9 Rent and Fees

    Unit Price

    • $3,055

    Model Rent and Fees

    Model Price Range

    • $2,777 - $3,072

    Corsica

    From $2,816

    2 Beds, 2 Baths, 900 sq ft
    Available Now

    Availability Details

    PriceAvailability DateUnitSq FtView Details
    $3,066Available Now013-P2900
    $2,997Available Now014-Q10900
    $3,014Available Now020-W4900

    Model Amenities and Features

    Features

    • Air Conditioning
    • Balcony
    • Cable Ready
    • Ceiling Fans
    • Handrails
    • Washer/Dryer

    Kitchen

    • Dishwasher
    • Microwave
    • Refrigerator

    Living Space

    • Views
    • Walk-In Closets
    • Window Coverings

    Outdoor Space

    • Patio

    Unique Features

    • Courtyard

    Model Rent and Fees

    Model Price Range

    • $2,816 - $3,066

    Current Available Pricing

    • $2,997 - $3,066

    Unit 013-P2 Amenities and Features

    Features

    • Air Conditioning
    • Balcony
    • Cable Ready
    • Ceiling Fans
    • Handrails
    • Washer/Dryer

    Kitchen

    • Dishwasher
    • Microwave
    • Refrigerator

    Living Space

    • Views
    • Walk-In Closets
    • Window Coverings

    Outdoor Space

    • Courtyard
    • Patio

    Unit 013-P2 Rent and Fees

    Unit Price

    • $3,066

    Model Rent and Fees

    Model Price Range

    • $2,816 - $3,066

    Unit 014-Q10 Amenities and Features

    Features

    • Air Conditioning
    • Balcony
    • Cable Ready
    • Ceiling Fans
    • Handrails
    • Washer/Dryer

    Kitchen

    • Dishwasher
    • Microwave
    • Refrigerator

    Living Space

    • Views
    • Walk-In Closets
    • Window Coverings

    Outdoor Space

    • Courtyard
    • Patio

    Unit 014-Q10 Rent and Fees

    Unit Price

    • $2,997

    Model Rent and Fees

    Model Price Range

    • $2,816 - $3,066

    Unit 020-W4 Amenities and Features

    Features

    • Air Conditioning
    • Balcony
    • Cable Ready
    • Ceiling Fans
    • Handrails
    • Washer/Dryer

    Kitchen

    • Dishwasher
    • Microwave
    • Refrigerator

    Living Space

    • Views
    • Walk-In Closets
    • Window Coverings

    Outdoor Space

    • Courtyard
    • Patio

    Unit 020-W4 Rent and Fees

    Unit Price

    • $3,014

    Model Rent and Fees

    Model Price Range

    • $2,816 - $3,066
Price shown is base rent. Excludes user-selected optional fees and variable or usage-based fees and required charges due at or prior to move-in or at move-out. View Fees and Policies for details. Price, availability, fees, and any applicable rent special are subject to change without notice.

Schedule a Tour

Schedule a Tour
Call us at: (657) 332-2755 to schedule a tour.

3D Tours

Property Information

  • 356 Units
  • 2 Stories
  • Built in 1988

Lease Terms

  • 1+ mo

Fees and Policies

The fees listed below are community-provided and may exclude utilities or add-ons. All payments are made directly to the property and are non-refundable unless otherwise specified.

Other Fees and Policies

Pet Fees

Cat

Pet DepositiMax of 3. Charged per Pet.$500
One-Time Pet FeeiMax of 3. Charged Per Pet.$0
Monthly Pet FeeiMax of 3. Charged Per Pet.$50
Restrictions:

null

Comments:

Max of 3.

Dog

Pet DepositiMax of 3. Charged per Pet.$500
One-Time Pet FeeiMax of 3. Charged Per Pet.$0
Monthly Pet FeeiMax of 3. Charged Per Pet.$65
Restrictions:

null

Comments:

Max of 3.

Parking Fees

Surface Lot

Parking FeeiCharged per vehicle.$0/mo

Additional Parking Options

Garage Parking

Property Fee Disclaimer: Based on community-supplied data and independent market research. Subject to change without notice. May exclude fees for mandatory or optional services and usage-based utilities.

Features and Amenities

Unique Amenities

  • Courtyard
  • Hardwood Floors In Select Homes
  • Night Patrol
  • smoke free living
  • Virtual Tours Available

On-Site Services

  • Maintenance On Site
  • Property Manager On Site

Community Features

  • Walk Up

Recreation and Fitness

  • Fitness Center
  • Spa
  • Tennis Court
  • Basketball Court
  • Volleyball Court
  • Pool

Interior Features

  • Balcony
  • Ceiling Fans
  • Handrails
  • Cable Ready
  • Washer/Dryer
  • Air Conditioning

Kitchen Amenities

  • Dishwasher
  • Microwave
  • Refrigerator

Living Area Features

  • Walk In Closets
  • Window Coverings
  • Views

Outdoor Features

  • Patio
Google Map

Map

20041 Osterman Rd, Lake Forest, CA 92630

Hours and Contact Info

Call Us - Open Now!
Currently Closed
By Appointment
MondayClosed
Tuesday10:00 am–6:00 pm
Wednesday10:00 am–6:00 pm
Thursday10:00 am–6:00 pm
Friday10:00 am–6:00 pm
Saturday10:00 am–5:00 pm
SundayClosed

Frequently Asked Questions about Siena Terrace

Where is Siena Terrace located?

Siena Terrace is located at 20041 Osterman Rd, Lake Forest, CA

What is the current rent range at Siena Terrace?

1 Bedroom to 2 Bedroom Apartments at Siena Terrace currently range from $2,411 to $3,072

When is the leasing office open?

  • The office Hours for Siena Terrace are
  • Monday Closed
  • Tuesday 10:00 am–6:00 pm
  • Wednesday 10:00 am–6:00 pm
  • Thursday 10:00 am–6:00 pm
  • Friday 10:00 am–6:00 pm
  • Saturday 10:00 am–5:00 pm
  • Sunday Closed

Are pets allowed?

Call us today to find out our pet policy and if we allow pets

Are there any rent specials?

The current rent special at Siena Terrace is: Save $1,000 on select units. or $199 security deposit special. [Offer good thru Mar 31, 2026].

Renters Reviews and Ratings

4.7
7 Renters Reviews
ⓘ How is this Rating Determined?The property ratings on ApartmentHomeLiving.com are created using a 5-star scale that includes average renter review scores combined with building ratings to determine an overall blended property score.

Building ratings are based on a community’s features, including the building design, construction, exterior spaces, and amenities. To learn more about the CoStar Building Rating System, refer to our official guidelines here.
  • Overcharging for everything

    December 21, 2020
    They increase rent every year between 50-100$. When we vacated the apartment after 6 years, they said we will be only charged for regular cleaning after inspection. But later on they put double charges for cleaning and added paint as well. They are highly dishonest and only after your money. They never take your concerns seriously
    Review from Apartments.com
  • Felt it could be better

    May 12, 2020
    Leased for 2 years and i will not be staying for a third. I feel the price vs amenity ratio is poor. I did not feel my unit was ideal, cleaned or taken care of upon move in. The team is great, their parking and towing rules are draconian. I parked in the same place every day with a parking pass yet one day of a missplaced pass or a pass that may have fallen down will net you a quick 400$ tow fee. As this has happened twice you can imagine my dismay. I felt that they take record of your car and ...
    give parking passes yet will tow you 1st night no warning.
    Read More
    Review from Apartments.com
  • Great spot!

    March 23, 2020
    The staff was incredibly friendly, and the tour was informative. There were no issues with the process of getting set with the new rental, and the apartment was very clean. The place is in a quiet area of Lake Forest, only 10 min from the 5 freeway, just the right balance of tranquility and access. A big plus is the inclusion of all kitchen appliances, as well as the in-unit washer and dryer. The unit includes a small garage as well as a second parking space with a free permit. Yet another plus ...
    is the fact that there are two pools and a workout area with new equipment. I was pleased to put hours upon hourse of searching to rest. If looking for a good value and good people in a safe area, give this place a visit. -Todd
    Read More
    Review from Apartments.com
  • Good Apartment for Families

    October 12, 2015
    Siena Terrace is a good apartment for families. There are lots of children because of the elementary school near by. Each unit comes with pretty much everything from dishwasher, refrigerator, washer/dryer in unit, etc., Also, very pet friendly. The leasing office staff are really nice and all the services have been very attentive. One thing that I dislike about this apartment is that the parking is horrible. You get a garage and if you have more than one car per unit, you need to get a parking ...
    permit or however many cars you have. The thing is that since it's very family orientated apartment complex, a lot of people use their garage as storage spaces and buy parking permits and park in the complex, which is a first come first serve as long as you have a permit. Let me tell you, there aren't enough parking spots for everyone so if you don't get home by 9pm, you are out of luck. You have to park on the street and walk up the hill. I wish they had assigned parking. I've only been living here four months and besides the bad parking, so far so good.
    Read More
    Review from Apartments.com
  • Feels like home

    July 28, 2015
    When I moved in I felt like this is my home. Neighbors friendly. Office people are great. Quiet and clean. My boyfriend and I love that this wS our first home together. Garage and washer and dryer included. If you are looking for a clean and homey place. This is it.
    Review from Apartments.com
  • Just my thought

    August 25, 2015
    When we first moved in this apartment was awesome. I love the private garage and and that they have two pools. While the staff is nice, we have renewed once and they raised the rent a hundred dollars and this year they want to raise it again by 95 just based on that I have it a two And the parking isn't always great.
    Review from Apartments.com
  • Problem after problem

    August 14, 2015
    Since we moved in we have had nothing but problems, within the first week we had to get the sink drain snaked because, as our maintenance worker said, there was backup in the drain from our neighbors. Added on top of this they have had to come 2 more times for the sink, they also had to replace the drywall in our bathroom for a large mildew build up behind it. We have been through 2 fridges and when the originally replaced the first one that one was broken as well and we never got reimbursed for ...
    the loss of food in the fridge. All in all i would say O.A.A.C.
    Read More
    Review from Apartments.com

Nearby Schools

El Toro High

Saddleback Valley Unified School District
25255 Toledo Way
Public School - Grades 9-12 (0 Students)
In Attendance Zone5 minute drive / 1.9 miles away
8/10

Serrano Intermediate

Saddleback Valley Unified School District
24642 Jeronimo Road
Public School - Grades 6-8 (0 Students)
In Attendance Zone5 minute drive / 2.5 miles away
5/10

Lake Forest Elementary

Saddleback Valley Unified School District
21801 Pittsford Drive
Public School - Grades K-5 (0 Students)
In Attendance Zone3 minute drive / 1.0 miles away
7/10
School data provided by GreatSchools.
details
The GreatSchools Rating helps parents compare schools within a state based on a variety of school quality indicators and provides a helpful picture of how effectively each school serves all of its students. Ratings are on scale of 1 (below average) and to 10 (above average) and can include test scores, college readiness, academic progress, advanced courses, equity, discipline and attendance data. We also advise parents to visit schools, consider other information on school performance and programs, and consider needs as part of the school selection process.

About GreatSchools Data on ApartmentHomeLiving.com.

Points of Interest

Time and distance from Siena Terrace.

Big Box and Retail

Costco

26602 Towne Centre Dr
3 minute drive / 1.14 miles away

Target

26762 Portola Pky
3 minute drive / 1.17 miles away

Michaels

26752 Portola Pky
3 minute drive / 1.24 miles away

Colleges and Universities

Brandman University - Brandman University

16355 Laguna Canyon Road
12 minute drive / 5.76 miles away

Irvine Valley College

5500 Irvine Center Drive
13 minute drive / 6.29 miles away

Saddleback College

28000 Marguerite Parkway
16 minute drive / 7.5 miles away

Groceries

Stater Brothers

22351 El Toro Rd
4 minute drive / 1.57 miles away

Grocery Outlet

22421-22485 El Toro Rd
5 minute drive / 1.79 miles away

Smart & Final

23631 El Toro Rd
7 minute drive / 3.41 miles away

Hospitals

Memorialcare Saddleback Medical Center

24451 Health Center Drive
9 minute drive / 4.23 miles away

Hoag Orthopedic Institute

16250 Sand Canyon Avenue
12 minute drive / 6.01 miles away

Foothill Regional Medical Center

14662 Newport Ave
22 minute drive / 10.39 miles away

Military Bases

El Toro Marine Corps Air Station

4 minute drive / 2.03 miles away

Tustin Marine Corps Air Station

20 minute drive / 9.48 miles away

Restaurants and Dining

Five Feet

328 Glenneyre Street
22 minute drive / 10.39 miles away

Shopping Centers

Lake Forest Center

20761 Lake Forest Dr
1 minute drive / 0.09 miles away

Forest Plaza

20770-20780 Lake Forest Dr
1 minute drive / 0.11 miles away

Lake Forest One Stop

20702 Lake Forest Dr
1 minute drive / 0.21 miles away

Siena Terrace has 5 shopping centers within 0.4 miles.

Transit Stations

Irvine-Inland Empire-Orange County Line

7 minute drive / 3.63 miles away

Irvine-Orange County Line

7 minute drive / 3.63 miles away

Tustin-Orange County Line

18 minute drive / 8.49 miles away

Nearby Neighborhoods

Studio to 3 Bedroom Apartments from $1,990
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Studio to 3 Bedroom Apartments from $1,990
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Studio to 3 Bedroom Apartments from $2,225
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Rental Price Ranges in the Area

BedroomAverage RentCheapest RentHighest Rent
Lake Forest Studio Apartments $2,796$1,895$4,280
Lake Forest 1 Bedroom Apartments $3,169$1,990$6,015
Lake Forest 2 Bedroom Apartments $3,853$2,680$8,400
Lake Forest 3 Bedroom Apartments $4,101$3,405$4,985

Browse Top Apartments in Lake Forest

Viewing: Siena Terrace | Desktop Version | Listing Updated: 03/19/2026 | AHLGLD