Fionnuala O'Sullivan Real Estate Agent - COMPASS

4084 Letitia Ave S, Seattle, WA For Sale $795,000 - listed by Fionnuala O'Sullivan — For Sale $795,000

Fionnuala O'Sullivan listing agent for 4529 34th Ave S, Seattle, WA - sold for $1,022,000 — Sold $1,022,000

746 10th Ave E, Seattle, WA For Sale $1,600,000 - co-listed by Fionnuala O'Sullivan — For Sale $1,600,000 • Co-Listing Agent

Fionnuala O'Sullivan buyer's agent for 7571 45th Ave SW, Seattle, WA - sold for $1,385,000 — Sold $1,385,000

Fionnuala O'Sullivan

Seattle WA

COMPASS

64 Closed Sales

$84.1M 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	14
Total Value	$24,998,000
Average Sale Price	$1,785,571
Price Range	$320K - $8.5M

Buyer Deals
Total Deals	7
Total Value	$10,135,000
Average Sale Price	$1,447,857
Price Range	$738K - $2.8M

1 Year View by Quarter

Seller Deals
Total Deals	24
Total Value	$37,228,000
Average Sale Price	$1,551,167
Price Range	$320K - $8.5M

Buyer Deals
Total Deals	8
Total Value	$11,284,000
Average Sale Price	$1,410,500
Price Range	$738K - $2.8M

2 Year View by Quarter

Seller Deals
Total Deals	46
Total Value	$62,040,557
Average Sale Price	$1,348,708
Price Range	$320K - $8.5M

Buyer Deals
Total Deals	18
Total Value	$22,062,775
Average Sale Price	$1,225,710
Price Range	$465K - $3.1M

5 Year View

Neighborhoods Fionnuala is Experienced In

Fionnuala's Listings and Deals

Fionnuala's Open Houses

$795,000

Open Sat 11AM - 1PM
- 4 Beds
- 3 Baths
- 2,290 Sq Ft
4084 Letitia Ave S

Seattle, WA
It’s summertime in Seattle - come chill at this well appointed 2006 home which features CENTRAL AC! Ideally located just blocks from bustling Columbia City and the Light Rail station, this comfortable home is move-in ready. 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

Fionnuala O'Sullivan COMPASS

Fionnuala's Active Listings

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

Recently Sold

$1,022,000

Sold Jun 4, 2026
- 3 Beds
- 2.5 Baths
- 1,960 Sq Ft
4529 34th Ave S

Seattle, WA
- 6% Above List
- 6 Days On Market
- $521/SF
- Current Est. Value $1M
Fionnuala O'Sullivan COMPASS

$917,000

Sold Jun 1, 2026
- 3 Beds
- 3 Baths
- 1,920 Sq Ft
403 Ferndale Ave NE

Renton, WA
- 1% Below List
- 18 Days On Market
- $478/SF
- Current Est. Value $901K
Fionnuala O'Sullivan COMPASS

$1,675,000

Sold May 19, 2026
- 4 Beds
- 2 Baths
- 1,530 Sq Ft
5602 S Willow St

Seattle, WA
- 17% Above List
- 6 Days On Market
- $1,095/SF
- Current Est. Value $2M
Fionnuala O'Sullivan COMPASS

$945,000

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

Lynnwood, WA
- 10 Days On Market
- $327/SF
- Current Est. Value $938K
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
- 6 Days On Market
- $817/SF
- 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
- 3 Days On Market
- $812/SF
- 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
- 8 Days On Market
- $2,328/SF
- Current Est. Value $9M
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
- 6 Days On Market
- $584/SF
- 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
- 4 Days On Market
- $752/SF
- Current Est. Value $912K
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 Open Houses

Fionnuala's Active Listings

Recently Sold

Awards and Designations