Highlights
Apartment Building
Cats and dogs allowed
In-unit washer / dryer
A/C
Lot, off street
Patio
Gated entry
Updated 22 hours ago
1/18
Proto Apartments
1255 Osceola St, Denver, CO 80204
$995 - $1,595
Studio - 1
Bed
1
Bath
Doesn't include required deposits and fees
Special offer! Apply and sign within 48 hours to receive eight weeks free plus three months of complimentary parking for a limited time! Units 103 + 109 is listed with the special already applied on a 12-month lease term.
Apartment floor plans
MatchesStudio1 Bed
Studio
1 bath305 sqft
Rent / mo
Available
Unit
$995
Now
109
Studio
1 bath227 sqft
Rent / mo
Available
Unit
$1,245
5/18/2026
101
Studio
-- baths495 sqft
Rent / mo
Available
Unit
$1,595
6/27/2026
212
1 bed
1 bath434 sqft
Rent / mo
Available
Unit
$1,295
7/31/2026
205
$1,411
7/8/2026
206
$1,445
8/10/2026
307
$1,519
6/10/2026
108
$1,545
6/24/2026
207
Commute
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About Proto Apartments
Proto Apartments are just the ticket for easy living in Denver. You'll enjoy brand-new studio and 1-bedroom apartments that feature designer kitchens with quartz countertops and stainless appliances, including dishwasher and microwave. And you're on the right track with large windows, air conditioning, and an in-unit washer/dryer. Additional storage is available, and we are pet-friendly, too. Located in the West Colfax neighborhood just 5 blocks from Sloan's Lake, Proto Apartments are convenient to restaurants, coffee shops, local breweries, and bike trails. We've got all your transportation angles covered -- in addition to off-street parking and bike storage, there are 2 on-site car-share vehicles. Proto is also less than a 2-min walk to Perry Street light rail station, a 12-minute train ride to downtown Denver and Auraria Campus.
Apartment amenities
Property amenities
- 2 On Site Car Share Vehicles
- Additional Reserved Storage
- Air Conditioning
- Bicycle Storage
- Ceiling Fan
- Designer Floors and Lighting
- Dryer
- Efficient Appliances
- Flooring: Tile
- Laundry: In Unit
- New Construction
- Off Street Parking
- On-Site Maintenance
- Parking Lot
- Patio
- Quartz Countertops
- Security: Gated Entry
- Smoke Free
- Walk-in Closets in Select Units
- Washer
Pet policy
Cats allowed- $300 pet deposit
- Cat
Dogs allowed- $300 pet deposit
- Dog
Terms at Proto Apartments
8, 9, 10, 11, 12, 13, 14.
Office hours at Proto Apartments
Sunday: Closed
Monday: 10:00 AM to 5:00 PM
Tuesday: 10:00 AM to 5:00 PM
Wednesday: 10:00 AM to 5:00 PM
Thursday: 10:00 AM to 5:00 PM
Friday: 10:00 AM to 5:00 PM
Saturday: 10:00 AM to 4:00 PM
Monday: 10:00 AM to 5:00 PM
Tuesday: 10:00 AM to 5:00 PM
Wednesday: 10:00 AM to 5:00 PM
Thursday: 10:00 AM to 5:00 PM
Friday: 10:00 AM to 5:00 PM
Saturday: 10:00 AM to 4:00 PM
Nearby schools
Students who live in Proto Apartments attend the following Denver County 1 School District (Unified School District) public schools:
AllPrimaryMiddleHigh
Showing 3 of
5 schools.
GreatSchools ratings are based on test scores and additional metrics when available.
Legal info
Applicant has the right to provide Four Star Realty with a Portable Tenant Screening Report (PTSR) as defined in §38-12-902(2.5), Colorado Revised Statutes; and 2) if Applicant provides Four Star Realty with a PTSR, Four Star Realty is prohibited from: a) charging Applicant a rental application fee; or b) charging Applicant a fee for Four Star Realty to access or use the PTSR. Four Star Realty may limit acceptance of PTSRs to those that are not more than 30 days old. Confirm PTSR requirements directly with Four Star Realty.
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Frequently asked questions
How many apartment units are available and what are their rents?
- There are 3 studio apartments available starting at $995
- There are 5 one-bedroom apartments available starting at $1,295