
Get to know C21 Altitude
Realtor
Specialties
Buyer's AgentListing AgentRelocationNew Construction
SpeaksEnglish, Japanese
15 Years of experienceThis team offers Showcase to make listings stand out
helps homes sell faster and for more with increased exposure on Zillow, a virtual tour, and an interactive floor plan.

Team listings & sales (261)
For Sale
For Rent
Sold
This map can show the most recent 100 listings and 100 sales. Review all listings and sales below.
For Sale (6)
Address | Bed/Bath | Listing price |
|---|---|---|
![]() 5402 Echo Hollow St Castle Rock, CO 80104
| 5 Bed, 4 Bath | $750,000 |
![]() 15859 Xanthia Way Thornton, CO 80602
| 2 Bed, 3 Bath | $1,000,000 |
![]() 13456 Via Varra St UNIT 225 Broomfield, CO 80020
| 2 Bed, 2 Bath | $339,000 |
![]() 12208 W Dorado Pl UNIT 207 Littleton, CO 80127
| 3 Bed, 2 Bath | $359,999 |
![]() 202 October Pl Castle Rock, CO 80104
| 5 Bed, 4 Bath | $1,665,000 |
For Rent (1)
Address | Bed/Bath | Listing price |
|---|---|---|
![]() 11862 Elkhorn Dr Franktown, CO 80116
| 3 Bed, 3 Bath | $4,000/mo |
Sold (254)
Address | Sold date | Closing price | Represented | Flag Sale |
|---|---|---|---|---|
| 11/7/2025 | $710,000 | Buyer | ||
| 10/10/2025 | $645,000 | Seller | ||
| 9/12/2025 | $546,500 | Buyer | ||
| 8/26/2025 | $800,000 | Buyer | ||
| 8/22/2025 | $775,000 | Buyer |
Team reviews (8)
Write a review- Highly likely to recommend||5.05.0
9/13/2020 - nparrinello
Sold a Multiple Occupancy home in 2020 in Castle rock, CO.
Review for Member: Marci SwansonLocal knowledgeProcess expertiseResponsivenessNegotiation skillsMy husband and I used Marci for the purchase and sale of our home in Castle Rock, Co. Both experiences were wonderful. Marci and her team were wonderful with us and helped us setting a price for the sale of our home that was realistic. Marci is someo... - Highly likely to recommend||5.05.0
2/21/2019 - Dan Knight
Bought a Single Family home in 2017 in The meadows, Castle rock, CO.
Review for Member: Marci SwansonLocal knowledgeProcess expertiseResponsivenessNegotiation skillsMarci was and still is fantastic! She helped us buy our first home 2 years ago, and still helps with any questions we have about the next house. I can't recommend her enough!! - Highly likely to recommend||5.05.0
12/13/2018 - zuser20140901123843362
Sold a Single Family home in 2018 in Meadow wood, Aurora, CO.
Review for Member: Marci SwansonLocal knowledgeProcess expertiseResponsivenessNegotiation skillsI have used Marci to both buy and sell in Denver, simply put there is no substituoon I would even consider, she is the best. She has always provided sound advice and an expert insight into all aspects of the process. - Highly likely to recommend||5.05.0
8/18/2017 - user29049420
Bought a Single Family home in 2017 in Parker, CO.
Review for Member: Marci SwansonLocal knowledgeProcess expertiseResponsivenessNegotiation skillsI can not be more enthusiastic in my recommendation of Marci and her team. My family had a complicated and time sensitive situation that she navigated with grace and perseverance. She must have showed us 100 homes and quickly learned and understood... - Highly likely to recommend||5.05.0
11/19/2016 - susan bumpas
Bought a Townhouse home in 2016 in Cherry creek racquet club, Aurora, CO.
Review for Member: Marci SwansonLocal knowledgeProcess expertiseResponsivenessNegotiation skillsMarci first helped my son find a home. Then, when I was ready to buy, I went back to her. She was great to work with. We found the perfect home and she walked me through the entire process of making it mine. She was very responsive to my questi...



















