active
$410M+
Career Sales Volume
14 yrs
Luxury & Estate Sales
92%
List-to-Sale Price
By Referral
Client Roster
About Sienna
Lic #OR #201045982Sienna Marsh represents a rare kind of real estate practice — one built entirely around discretion, market fluency, and an unwillingness to let a detail slip. Her clients are buying and selling the kind of properties that rarely appear on a public search: architect-built estates, private ridge-line lots, and riverfront residences held for generations.
Before real estate, Sienna spent eight years in architecture and design, an education that shows in how she talks about a property — not just square footage, but light, sightlines, and how a home is actually going to be lived in. She works with a small, deliberately limited client list, by referral, so every transaction gets her full attention from first showing to final signature.
Based in Central Oregon with a standing presence in Portland, Sienna represents buyers and sellers across the region's most competitive luxury inventory.
- DesignationCertified Luxury Home Marketing Specialist
- BrokerageRidgeline Luxury Properties
- CoverageCentral Oregon & Portland Metro
- BackgroundB.Arch, University of Oregon
Current Listings
3 active · more added as they list
Why Sienna
01
An architect's eye for a property
Eight years in architecture and design before real estate — Sienna reads a floor plan, a lot, and a light exposure the way most agents read a listing sheet.
02
Discretion, by design
Many of Sienna's transactions never touch the public market. Off-market access and a quiet process for sellers who value privacy as much as price.
03
A limited client roster, on purpose
Sienna works by referral with a small number of clients at a time, so every search and every negotiation gets her direct, personal attention.
From Recent Clients
Sienna found us a property that was never publicly listed and handled the entire negotiation without a single misstep. It felt less like a transaction and more like having an advocate.
We interviewed four agents before choosing Sienna. She was the only one who talked about the house itself before she talked about the price — and she still got us $180K over ask.
Get In Touch
Sienna Marsh
Ridgeline Luxury Properties · Central Oregon & Portland. Reach out about a listing or just to talk through the market.