623 Marine St, Boulder, CO 80302
Property image
Property image
FOR RENT

$9,000/mo

  • 4 Beds
  • 2.5 Baths
  • 4,356 sqft

623 Marine St, Boulder, CO 80302

Flatirons
Available Jun 10
Cost and fees breakdown
Price may not include required fees and charges.

Home Highlights

Apartment
No Pets

Local Information

  • Map ViewExplore the area around 623 Marine St.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

About this House

What's unique:Elevated deck
623 Marine St Steps from CU, Built for Student Living. Walk to class from this bright 4-bedroom home just off campus 2 bedrooms up, 2 down with a private walk-out entrance, ideal for roommates who want their own space. Flatirons views from nearly every room and an elevated deck make it feel more like a retreat than a rental. You're an easy stroll to Pearl Street's food and nightlife, Boulder Creek Path, and Viewpoint Trail for a quick escape into the foothills. Two off-street parking spots on Turner Alley mean no fighting for parking near campus. RHL-01006929
Contact this Building
(720) 782-8646

Details for 623 Marine St

Days on Market

Days on Market: 3 days on Trulia

Property Information

Property Type / Style
Property Type: Apartment

Rental Terms, Policies & Fees

Lease Term: 12 monthsAvailable: Jun 10th

Policies and fees

Pet policy

Dogs
Not allowed
Cats
Not allowed
Report this Listing

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Rental Market Trends in Flatirons

Last updated Oct 2026
Trulia Rent Estimate$4,493/mo
Average rent
$3.3K
$1.5KMoM
Available listings
15
View rental market trends in Boulder, CO

Around this home

Neighborhood Overview

Flatirons
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Flatirons

This October

Trick-or-Treat Score

Built from what locals say about Flatirons.
  • 86% say there's holiday spirit
  • 75% say there are sidewalks
  • 61% say neighbors are friendly
Trulia Trick or TreatStart Ghost Hunt
At least 4 Trulia users voted on each feature.

  • 100 % Say it's walkable to restaurants

  • 100 % Say parking is easy

  • 89 % Say it's dog friendly

  • 86 % Say there's holiday spirit

  • 86 % Say people would walk alone at night

  • 83 % Say it's walkable to grocery stores

  • 80 % Say it's quiet

  • 80 % Say yards are well-kept

  • 75 % Say there are sidewalks

  • 75 % Say streets are well-lit

  • 71 % Say they plan to stay for at least 5 years

  • 63 % Say there's wildlife

  • 61 % Say neighbors are friendly

  • 57 % Say kids play outside

  • 50 % Say car is needed

  • 50 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Nancypautsch
    "This is a dog friendly neighborhood. Several neighbors have dogs that they walk which is fun to see. We don’t presently have dogs, but we always had one to two dogs with our three kids as they were growing up. Pets definitely are park of a neighborhood community. "
    0
    Flag
  • Meganelizabethfettig
    "It’s close to the creek the park and roads that go up mountain roads but I don’t like hearing the traffics from Canyon. It also feels claustrophobic to me but I’m a mountain girl."
    1
    Flag

Local Legal Protections

LGBTQ • Source of Income

Price and Tax history

DateEventPrice
Oct 13, 2026
Source: Zillow Rentals
Listed For Rent
$9,000
Aug 13, 2026
Source: Zillow Rentals
ListingRemoved
$3,995
Aug 8, 2026
Source: Zillow Rentals
PriceChange
$3,995
Price decreased by 9%
Aug 1, 2026
Source: Zillow Rentals
PriceChange
$4,380
Price decreased by 9%
Jul 22, 2026
Source: Zillow Rentals
Listed For Rent
$4,800
Applicant has the right to provide the landlord with a Portable Tenant Screening Report (PTSR), as defined in §38-12-902(2.5), Colorado Revised Statutes; and 2) if Applicant provides the landlord with a PTSR, the landlord is prohibited from: a) charging Applicant a rental application fee; or b) charging Applicant a fee for the landlord to access or use the PTSR. The landlord may limit acceptance of PTSRs to those that are not more than 30 days old. Confirm PTSR requirements directly with the landlord.

Frequently asked questions about 623 Marine St

  • What is 623 Marine St estimated to be worth?
    Trulia's estimated value for 623 Marine St in Boulder, CO is $1,165,300.
  • What is the price history for 623 Marine St?
    623 Marine St in Boulder, CO last sold for $1,176,000 in July 2026.
  • Is Boulder a buyer's or seller's market?
    Boulder is currently a buyer's market, based on recent for-sale activity.
  • What's the median sale price in Boulder?
    The median sale price in Boulder is $899K. That is down $5.42K from the prior month.

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Affordability

TIP:Try to keep your rent within a third of your gross household income. Learn why in our Renter's Guide.
For this property
$324,000 PER YEAR
is the suggested income
Win over prospective landlords with your smart budgeting. As a good rule of thumb, ideally you would have at least three times your monthly rent in combined household income.

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623 Marine St, Boulder, CO is a 4 bedroom, 3 bathroom, 4,356 sqft apartment. 623 Marine St is located in Flatirons, Boulder. 623 Marine St was listed for rent for $9,000/month on Oct 13, 2026.