skip to main content

King County Department of Assessments

Setting values, serving the community, and promoting fairness and equity.

Department of Assessments

201 South Jackson Street,
Seattle, WA 98104

Office Hours:
Mon - Fri
8:30 a.m. to 4:30 p.m.

TEL: 206-296-7300
TTY relay: 711 or 800-833-4388

Send us mail

 
PARCEL DATA
Parcel292303-9119
NameDOREEN KOCH-ALLEN
Site Address8415 SW SOPER RD 98070
Residential Area 100-002 (SW Appraisal District)
Property Name
JurisdictionKING COUNTY
Levy Code4055
Property Type R
Plat Block / Building Number
Plat Lot / Unit Number
Quarter-Section-Township-Range SE-29-23-3
Legal Description
LOT A OF KC BLA #L02L0042 REC #20040316900005 SD BLA LOCATED IN SE 1/4 OF SEC 29-23-03 & NE 1/4 32-23-03 TGW 2ND CL TD LDS ADJ TO EXTREME LOW TIDE IN SEC 32-23-03
PLat Block:
Plat Lot:


LAND DATA
 
Highest & Best Use As If VacantSINGLE FAMILY
Highest & Best Use As ImprovedPRESENT USE
Present UseSingle Family(Res Use/Zone)
Land SqFt1,063,668
Acres24.42
Percentage Unusable 
UnbuildableNO
Restrictive Size ShapeNO
ZoningRA-2.5
WaterWATER DISTRICT
Sewer/SepticPRIVATE
Road AccessPUBLIC
ParkingADEQUATE
Street SurfaceGRAVEL
Views Waterfront
RainierEXCELLENT
TerritorialEXCELLENT
Olympics
CascadesGOOD
Seattle Skyline
Puget SoundEXCELLENT
Lake Washington
Lake Sammamish
Lake/River/Creek
Other View
Waterfront LocationPUGET SOUND
Waterfront Footage821
Lot Depth Factor0
Waterfront BankLOW
Tide/ShoreUPLANDS ONLY
Waterfront Restricted Access
Waterfront Access RightsNO
Poor QualityNO
Proximity InfluenceNO
Designations Nuisances
Historic Site
Current Use(none)
Nbr Bldg Sites 
Adjacent to Golf FairwayNO
Adjacent to GreenbeltNO
Other DesignationNO
Deed RestrictionsNO
Development Rights PurchasedNO
EasementsNO
Native Growth Protection EasementNO
DNR LeaseNO
 
Topography
Traffic Noise
Airport Noise 
Power LinesNO
Other NuisancesNO
Problems
Water ProblemsNO
Transportation ConcurrencyNO
Other ProblemsNO
Environmental
EnvironmentalNO

Environmental TypeInformation SourceDelineation studyPercentage Affected
Stream  0
BUILDING
Building Number1
Year Built1999
Year Renovated0
Stories2
Living Units1
Grade13 Mansion
Grade Variant0
ConditionAverage
Basement Grade13 Mansion
1st Floor3,995
1/2 Floor0
2nd Floor5,678
Upper Floor0
Finished Basement296
Total Finished Area9,969
Total Basement716
Basement Garage0
Unfinished 1/20
Unfinished Full0
AGLA9,673
Attached Garage2,840
Bedrooms4
Full Baths4
3/4 Baths3
1/2 Baths0
Heat SourceElectricity
Heat SystemHt Pump/AC
Deck Area SqFt679
Open Porch SqFt0
Enclosed Porch SqFt0
Brick/Stone20
Fireplace Single Story5
Fireplace Muilti Story0
Fireplace Free Standing0
Fireplace Additional0
AddnlCost0
Obsolescence0
Net Condition0
Percentage Complete0
Daylight Basement 
View Utilization 
Click the camera to see more pictures.
Picture of Building 1
Current Picture

Floor plan of Building 1
Current Floor Plan

Accessory Of Building Number: 1
Accessory TypePictureDescriptionSqFtGradeEff Year%ValueDate Valued
MISC IMP Boathouse with launch appx 18X325766 Low Average2014 380004/14/2026
 
TAX ROLL HISTORY

AccountValued YearTax YearOmit YearLevy CodeAppraised Land Value ($)Appraised Imps Value ($)Appraised Total Value ($)New Dollars ($)Taxable Land Value ($)Taxable Imps Value ($)Taxable Total Value ($)Tax Value Reason
29230391190620262027 40552,723,0003,356,0006,079,00002,723,0003,356,0006,079,000
29230391190620252026 40551,900,0004,927,0006,827,00001,900,0004,927,0006,827,000
29230391190620242025 40551,783,0005,265,0007,048,00001,783,0005,265,0007,048,000
29230391190620232024 40551,735,0004,789,0006,524,00001,735,0004,789,0006,524,000
29230391190620222023 40551,907,0005,518,0007,425,00001,907,0005,518,0007,425,000
29230391190620212022 40551,502,0004,248,0005,750,00001,502,0004,248,0005,750,000
29230391190620202021 40551,367,0003,948,0005,315,00001,367,0003,948,0005,315,000
29230391190620192020 40552,055,0004,234,0006,289,00002,055,0004,234,0006,289,000
29230391190620182019 40552,055,0004,241,0006,296,00002,055,0004,241,0006,296,000
29230391190620172018 40551,958,0003,626,0005,584,00001,958,0003,626,0005,584,000
29230391190620162017 40551,675,0003,099,0004,774,00001,675,0003,099,0004,774,000
29230391190620152016 40551,675,0003,244,0004,919,00001,675,0003,244,0004,919,000
29230391190620142015 40551,907,0001,533,0003,440,00001,907,0001,533,0003,440,000
29230391190620132014 40551,907,0001,399,0003,306,00001,907,0001,399,0003,306,000
29230391190620122013 40551,907,0001,173,0003,080,00001,907,0001,173,0003,080,000
29230391190620112012 40552,178,0001,264,0003,442,00002,178,0001,264,0003,442,000
29230391190620102011 40552,255,0001,305,0003,560,00002,255,0001,305,0003,560,000
29230391190620092010 40552,255,0001,790,0004,045,00002,255,0001,790,0004,045,000
29230391190620082009 40552,255,0002,115,0004,370,00002,255,0002,115,0004,370,000
29230391190620072008 40552,255,0001,647,0003,902,00002,255,0001,647,0003,902,000
29230391190620062007 4055785,0003,118,0003,903,0000785,0003,118,0003,903,000
29230391190620052006 4055708,0002,906,0003,614,0000708,0002,906,0003,614,000
29230391190620042005 4055628,0002,864,0003,492,0000628,0002,864,0003,492,000
29230391190620032004 4055584,0002,756,0003,340,0000584,0002,756,0003,340,000
29230391190620022003 4055531,0002,669,0003,200,0000531,0002,669,0003,200,000
29230391190620012002 4055586,0002,284,0002,870,0000586,0002,284,0002,870,000
29230391190620002001 4055516,0002,011,0002,527,000675,000516,0002,011,0002,527,000
29230391190619992000 4055481,0001,200,0001,681,0001,050,000481,0001,200,0001,681,000
29230391190619981999 4055421,000319,000740,0000421,000319,000740,000
29230391190619971998 40550000408,000309,000717,000
29230391190619961997 40550000375,700145,600521,300
29230391190619951996 40550000375,700145,600521,300

SALES HISTORY

Excise NumberRecording NumberDocument DateSale PriceSeller NameBuyer NameInstrumentSale Reason
3306171 20241107000308 11/4/2024 $0.00KOCH HANSKOCHALLEN DOREEN+RALPH+ET AL Quit Claim DeedOther
3290660 20240716000269 7/12/2024 $0.00KOCH CYNTHIA CKOCH HANS GQuit Claim DeedProperty Settlement
3290659 20240716000268 7/11/2024 $6,750,000.00VALDIVIA BETH A HARTQUIST+TOMAS D+ET AL KOCH HANS GWarranty DeedNone
3122193 20210601001449 5/31/2021 $5,750,000.00KOCH HANS G+CYNTHIA CKLAHANIE NORTH TRUST +VALDIVIA TOMAS D+ET AL Warranty DeedNone
2857060 20170404001256 3/31/2017 $0.00KOCH HANS GKOCH HANS G+CYNTHIA CQuit Claim DeedCommunity Property Established
2767660 20151120001036 10/22/2015 $800,000.00KOCH HANS GKING-COUNTY GOVTOther - See AffidavitNone
2701092 20141117000464 11/10/2014 $0.00KOCH CYNTHIA CKOCH HANS GQuit Claim DeedProperty Settlement
2613339 20130624001158 5/30/2013 $0.00KOCH HANS GKOCH HANS G+CYNTHIA CQuit Claim DeedCommunity Property Established
2466043 20101109001025 11/2/2010 $0.00KOCH HANS G+CINDYKOCH HANS GQuit Claim DeedProperty Settlement
2148020 20050819000732 3/14/2005 $0.00KOCH HANS GCURRAN MOLLYQuit Claim DeedOther
1905746 20020826002450 8/16/2002 $0.00KOCH CYNTHIAKOCH HANS GQuit Claim DeedProperty Settlement
1445893 199508312157 7/11/1995 $700,000.00UTZ LAURETTE CKOCH HANS GSpecial Warranty DeedExecutor - to administrative guardian

REVIEW HISTORY

Tax YearReview NumberReview TypeAppealed ValueHearing DateSettlement ValueDecisionStatus
20222102240Local Appeal$6,360,0001/1/1900$0 Completed

PERMIT HISTORY

Permit NumberPermit DescriptionTypeIssue DatePermit ValueIssuing JurisdictionReviewed Date
NOPERMIT New improvement (RPET)Building, New12/8/1999$0KING COUNTY8/7/2000
B97A1850 Remodel9/12/1997$682,460 8/7/2000
B97A1419 Accessory, New5/29/1997$60,000 8/7/2000

HOME IMPROVEMENT EXEMPTION