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Siena Terrace Apartments 1 of 12

Siena Terrace Apartments

$2,404 – $2,986/mo

20041 Osterman Rd, Lake Forest, CA, 92630

What floor plans are available at Siena Terrace Apartments?

Siena Terrace Apartments currently lists 3 floor plans across 19 available units, from one-bedroom to two-bedroom, starting at $2,404/mo. 6 one-bedrooms from $2,404 to $2,432/mo (700 sq ft), earliest move-in Oct 13. 13 two-bedrooms from $2,732 to $2,986/mo (900 sq ft), earliest move-in Sep 21. Prices checked September 24, 2026.

Naples

Starting at $2,404

1 Bedroom • 1 Bath • 700 Sq Ft

6 available unitsPriceSq ftAvailableOpen unit
020-W14$2,432700Oct 13
012-N2$2,404700Oct 15
020-W3$2,415700Oct 22
015-R2$2,432700Oct 23
017-T11$2,432700Oct 23
017-T10$2,432700Nov 3

Corsica

Starting at $2,732

2 Bedrooms • 2 Baths • 900 Sq Ft

5 available unitsPriceSq ftAvailableOpen unit
010-K16$2,907900Sep 22
014-Q11$2,907900Sep 22
014-Q9$2,732900Sep 30
022-Y15$2,942900Oct 28
022-Y1$2,879900Nov 10

Portofino

Starting at $2,917

2 Bedrooms • 2 Baths • 900 Sq Ft

8 available unitsPriceSq ftAvailableOpen unit
015-R5$2,917900Sep 21
005-E13$2,957900Sep 22
008-H13$2,986900Sep 22
018-U8$2,929900Sep 30
012-N1$2,929900Oct 27
009-J5$2,941900Oct 30
003-C13$2,969900Oct 30
011-M13$2,985900Nov 11

What are the fees and lease terms at Siena Terrace Apartments?

Rent at Siena Terrace Apartments is $2,404 – $2,986 per month. The security deposit is $500. Leases are typically 12 months. A move-in special is listed as $199 Security Deposit Special. Monthly fees include Connectivity*, Gas/Central Boiler, and Pest. Due at signing: Convertible Holding Fee ($200) and Non-Refundable App Fee ($42). The earliest listed move-in is Sep 21. Prices checked September 24, 2026.

  • Rent

    $2,404 – $2,986/mo
  • Security deposit

    $500
  • Lease term

    12 months
  • Move-in special

    $199 Security Deposit Special.
  • Earliest move-in

    Sep 21

Monthly fees

Connectivity*

$65/mo

Gas/Central Boiler

$20/mo

Pest

$3/mo

Sewer

$26/mo

Trash

$30/mo

Utility Admin Fee

$6/mo

Water

$31/mo

Due at signing

Convertible Holding Fee

$200

Non-Refundable App Fee

$42

What amenities does Siena Terrace Apartments have?

Siena Terrace Apartments lists 12 amenities, including a gym, a pool, and parking.

  • 2 Spas

  • Basketball Court

  • Courtesy Patrol

  • Detached Garages

  • Fitness Center

  • Multi-Sport Court

  • Near Aliso Creek Riding And Whiting Ranch

  • Packages Delivered To Door

  • Reserved Parking Spaces

  • Sand Volleyball Court

  • Tennis Court

  • Two Solar Heated Swimming Pools


What do the amenities at Siena Terrace Apartments look like?

  • Pool
    6 photos
  • Gym
    4 photos
  • Grill area
    2 photos
  • Playroom
    2 photos
  • Lobby

Where is Siena Terrace Apartments?

Siena Terrace Apartments is at 20041 Osterman Rd, Lake Forest, CA, 92630.

20041 Osterman Rd, Lake Forest, CA, 92630


Residents give Siena Terrace Apartments a C grade (about 3.7 out of 5) from 200+ reviews. Most residents praise the maintenance and leasing staff for responsive, professional service and quick issue resolution. However, significant concerns persist around parking availability, pest control effectiveness, aging infrastructure requiring frequent repairs, and inconsistent rule enforcement.

3.70 · 200+ reviews
Overall rating
Positive
Mixed
Neutral
Negative
Maintenance4.6
Management3.8
Building Quality2.1
Amenities and Shared Spaces2.2
Location4.6

Most residents praise the maintenance and leasing staff for responsive, professional service and quick issue resolution. However, significant concerns persist around parking availability, pest control effectiveness, aging infrastructure requiring frequent repairs, and inconsistent rule enforcement. The property offers a quiet location with reasonable pricing, but maintenance of common areas and building systems needs improvement.

Maintenance staff consistently deliver prompt, professional service with quick response times for repairs including plumbing, HVAC, appliances, and electrical issues. The majority of residents report positive experiences with courteous and efficient technicians. A small number of residents report delayed responses to maintenance requests and unresolved ongoing issues, particularly related to plumbing and electrical systems.

Management and leasing staff receive consistent praise for responsiveness and professionalism, with many residents highlighting quick issue resolution and courteous communication. However, a significant portion of reviews report concerns about enforcement of community policies, pest control effectiveness, parking management, and delayed responses to maintenance requests. Billing practices and lease documentation accessibility have also been cited as issues by some residents.

Residents report significant building maintenance and infrastructure concerns, including pest infestations (roaches and ants), aging building systems with frequent unscheduled water and electricity outages, and inadequate noise insulation between units. While maintenance and leasing staff are noted as responsive and friendly, the physical condition of the buildings and ongoing service disruptions are primary concerns. Parking availability and amenity maintenance (pools, hot tubs) are also recurring issues.

Residents report significant concerns with amenities and common-area maintenance, particularly regarding pool upkeep, parking availability, and shared-space conditions. Parking is consistently cited as unavailable or inadequate, with limited visitor parking enforcement. Pool and jacuzzi maintenance appears inconsistent, and common areas including grounds, trash facilities, and sidewalks require more frequent attention. One positive review noted well-maintained grounds and responsive service, though parking challenges were acknowledged.

The property offers a convenient location in a quiet residential area with good access to nearby restaurants and stores. Parking is a significant challenge, with insufficient spaces and frequent non-resident violations limiting availability, particularly during off-peak hours. Overall, residents appreciate the location and affordability despite parking constraints.


Is Siena Terrace Apartments walkable?

Siena Terrace Apartments is car-dependent (grade F) and biking is not bikeable (grade F).

WALK

Car-Dependent

BIKE

Not Bikeable


What is Siena Terrace Apartments like?

Terrace If you're looking for a home with incredible amenities, look no further than Siena Terrace Apartments. You'll love living so close to the scenic wilderness parks and walking trails.

Terrace If you're looking for a home with incredible amenities, look no further than Siena Terrace Apartments. You'll love living so close to the scenic wilderness parks and walking trails. On-site, our basketball and sports courts create a fun and exciting environment for all. This community is Pet Friendly and each home is filled with natural light, gorgeous views and the modern finishes. Private garage parking, in-home washers and dryers and fully equipped kitchens make relaxing and entertaining guests a breeze. Come and find an exciting and comfortable living experience here at Siena Terrace Apartments.


How big is Siena Terrace Apartments?

Siena Terrace Apartments is an apartment.

  • Building

    Apartment

What schools are near Siena Terrace Apartments?

Heritage Montessori School is 0.6 miles from Siena Terrace Apartments. 10 schools are listed nearby.

SchoolTypeLevelDistance

Heritage Montessori School

Private · Elementary
PrivateElementary0.6 mi

Fulbright Montessori Academy

Private · Elementary
PrivateElementary0.9 mi

The Goddard School - Lake Forest (Baker Ranch)

Private · Elementary
PrivateElementary1.4 mi

Lake Forest Montessori School

Private · Elementary
PrivateElementary1.5 mi

Montessori Children's House of Lake Forest

Private · Preschool
PrivatePreschool1.6 mi

Woodcrest Preschool

Private · Elementary
PrivateElementary1.6 mi

El Toro High School

Public · High
PublicHigh2.1 mi

Grace Christian Schools

Private · Middle
PrivateMiddle2.1 mi

Step By Step

Private · Preschool
PrivatePreschool2.2 mi

Kiddie Kampus Pre-School

Private · Preschool
PrivatePreschool2.5 mi

How do I contact Siena Terrace Apartments?

Siena Terrace Apartments is managed by Equity Residential.