Fionnuala O'Sullivan

Seattle WA

COMPASS

64 Closed Sales

$85.1M Total Value

$320K - $8.5M Price Range

$1.3M Average Price

Prior 5 years

About Fionnuala

Born in Zambia and raised in Ireland, Fionnuala has been a Seattle resident since the early 1990s. Since 1999, she has been a full-time, professional broker and realtor. My past experience as an owner and the Designated Broker of GBK Realtors - an independent, full-service company considered to be one of Seattle's most successful brokerages - has contributed enormously to my expertise and afforded me a wide breadth of knowledge in what is sometimes a baffling market! In early 2020, GBK partnered with COMPASS - a company that offers best-in-class-technology, unique programs like COMPASS Concierge, and top-notch marketing.

Home Types: House, Condo, Townhouse

Years of Experience: 25

Transaction History

1 Year
2 Year
5 Year

Seller Deals

Total Deals

Total Value

$22,119,000

Average Sale Price

$1,843,250

Price Range

$320K - $8.5M

Buyer Deals

Total Deals

Total Value

$9,899,000

Average Sale Price

$1,414,143

Price Range

$738K - $2.8M

1 Year View by Quarter

Seller Deals

Total Deals

Total Value

$34,289,501

Average Sale Price

$1,558,614

Price Range

$320K - $8.5M

Buyer Deals

Total Deals

Total Value

$13,444,275

Average Sale Price

$1,222,207

Price Range

$730K - $2.8M

2 Year View by Quarter

Seller Deals

Total Deals

Total Value

$59,251,557

Average Sale Price

$1,377,943

Price Range

$320K - $8.5M

Buyer Deals

Total Deals

Total Value

$25,802,775

Average Sale Price

$1,228,704

Price Range

$465K - $3.1M

5 Year View

Neighborhoods Fionnuala is Experienced In

Fionnuala's Active Listings

$965,000
- 3 Beds
- 2.5 Baths
- 1,960 Sq Ft
4529 34th Ave S

Seattle, WA
Dreaming of urban living at its finest? This stellar location places you just blocks from bustling Columbia City and the Light Rail station, delivering a truly connected and effortless lifestyle. Enjoy easy access to Seattle’s parks, exceptional transit and bike routes, I-5 and I-90, plus acres of nearby parkland, the Mt. Baker Sailing Center, and miles of public lakefront. Step inside to soaring

Fionnuala O'Sullivan COMPASS

Co-Listing Agent

$1,600,000
- 5 Beds
- 5 Baths
- 3,000 Sq Ft
746 10th Ave E

Seattle, WA
Perfectly positioned on a corner lot in coveted Capitol Hill, this colonial-style property offers an exceptional blend of character and location. Just steps from iconic Volunteer Park and within easy reach of vibrant shops and restaurants, it embodies the best of urban living. Each of the five one-bedroom, one-bath residences features hardwood floors, leaded-glass built-ins, and expansive windows

Fionnuala O'Sullivan COMPASS

$1,430,000
- 4 Beds
- 2 Baths
- 1,530 Sq Ft
5602 S Willow St

Seattle, WA
Exceptional location in a coveted private setting in serene Seward Park! Nestled on a 14700SF lot, this 1928 farmhouse style home wows with its' sparkling vistas of Lake Washington and majestic Mt Rainier. Freshly finished hard wood floors throughout and light filled interiors create a wonderful sense of airiness. Day rooms that overlook the lake and mountain and connect seamlessly with the view

Fionnuala O'Sullivan COMPASS

$925,000
- 3 Beds
- 3 Baths
- 1,920 Sq Ft
403 Ferndale Ave NE

Renton, WA
Immaculate split-level on a corner lot in a stellar location. Just minutes from I-405, The Landing and Gene Coulon Park, this home offers easy access to everything—yet lives quietly tucked away from it all. Meticulously maintained inside and out, it delivers effortless living with thoughtful updates throughout. Light-filled great room style living spaces center around a welcoming living room with

Fionnuala O'Sullivan COMPASS

Co-Listing Agent

$1,450,000
- 3 Beds
- 2 Baths
- 2,830 Sq Ft
4026 48th Ave S

Seattle, WA
Substantial classic mid century brick home with sparkling lake and mountain vistas in coveted, lakefront Lakewood neighborhood. Exceptional location on a quiet street, within a block of miles of Lake Washington shoreline, with Mt Baker Rowing+Sailing to the north , and Seward Park to the south. Main floor with eat-in kitchen and expansive living areas showcase large picture windows which are

Fionnuala O'Sullivan COMPASS

Recently Sold

$945,000 Sold Apr 8, 2026
- 5 Beds
- 3.5 Baths
- 2,893 Sq Ft
17830 66th Place W

Lynnwood, WA
- $327/SF
- 10 Days On Market
- Current Est. Value $920K
Fionnuala O'Sullivan COMPASS

$1,300,000 Sold Feb 18, 2026
- 2 Beds
- 2.5 Baths
- 1,592 Sq Ft
125 E Lynn St

Unit 301

Seattle, WA
- $817/SF
- 6 Days On Market
- Current Est. Value $1M
Fionnuala O'Sullivan COMPASS

$1,300,000 Sold Nov 14, 2025
- 4 Beds
- 2 Baths
- 1,600 Sq Ft
1810 167th Ave NE

Bellevue, WA
- 4% Above List
- $812/SF
- 3 Days On Market
- Current Est. Value $1M
Fionnuala O'Sullivan COMPASS

$8,500,000 Sold Oct 17, 2025
- 3 Beds
- 3.5 Baths
- 3,651 Sq Ft
9001 NE 40th Place

Yarrow Point, WA
- 1% Below List
- $2,328/SF
- 8 Days On Market
- Current Est. Value $8M
Fionnuala O'Sullivan COMPASS

$1,010,000 Sold Jun 5, 2025
- 3 Beds
- 3 Baths
- 1,730 Sq Ft
501 NW 42nd St

Seattle, WA
- 6% Above List
- $584/SF
- 6 Days On Market
- Current Est. Value $1M
Fionnuala O'Sullivan COMPASS

$1,100,000 Sold Apr 25, 2025
- 3 Beds
- 2 Baths
- 1,462 Sq Ft
3614 SW Trenton St

Seattle, WA
- 23% Above List
- $752/SF
- 4 Days On Market
- Current Est. Value $1M
Fionnuala O'Sullivan COMPASS

$1,231,000 Sold Mar 28, 2025
- 3 Beds
- 2.5 Baths
- 1,468 Sq Ft
509 W Olympic Place

Unit C

Seattle, WA
- 13% Above List
- $839/SF
- 7 Days On Market
- Current Est. Value $1M
Fionnuala O'Sullivan COMPASS

$1,275,000 Sold Feb 3, 2025
- 3 Beds
- 3 Baths
- 2,450 Sq Ft
3419 Hunter Blvd S

Seattle, WA
- 13% Above List
- $520/SF
- 7 Days On Market
- Current Est. Value $1M
Fionnuala O'Sullivan COMPASS

$1,200,000 Sold Oct 25, 2024
- 3 Beds
- 2.5 Baths
- 2,120 Sq Ft
4714 45th Ave S

Seattle, WA
- 3% Below List
- $566/SF
- 9 Days On Market
- Current Est. Value $1M
Fionnuala O'Sullivan COMPASS

Awards and Designations

NAR - National Association of Realtors

Fionnuala O'Sullivan

(206) 829-6701

Homes for Sale by City

Fionnuala O'Sullivan

About Fionnuala

Transaction History

Seller Deals

Buyer Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

2 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Neighborhoods Fionnuala is Experienced In

Fionnuala's Listings and Deals

Fionnuala's Active Listings

Recently Sold

Awards and Designations