Seattle cost segregation examples

5 representative Seattle-area properties run through the Cost Seg Smart engine. These aren't hypothetical, every number below comes from the same engine that produces real customer studies.

Summary table

Example Price Reclass % Y1 fed savings @ 37% Land % Recon band
Capitol Hill Craftsman Flip
Capitol Hill / Central District · SFR
$925,000 14.8% $30,929 38.8% B
Ballard SFR + Detached ADU
Ballard / Fremont (Northwest Seattle) · SFR
$875,000 14.9% $29,562 38.8% B
West Seattle SFR Rental
West Seattle · SFR
$785,000 15.1% $26,915 38.8% A
Bellevue Eastside Condo
Bellevue / Kirkland (Eastside) · CONDO
$1,185,000 10.2% $20,983 53.1% D
Renton Suburban Fourplex
Renton / Kent (suburban King County south) · FOURPLEX
$685,000 13.9% $24,716 30.0% A_low

"Recon band" reflects the engine's reconciliation factor (rf_raw): A = clean fit between component-bottom-up sum and depreciable basis; D = high cost-of-construction-vs-purchase ratio, premium land floor applied.

Capitol Hill Craftsman Flip

Capitol Hill / Central District · SFR (long-term rental) · Built 1918 · 1950 sqft

$30,929
Year-1 federal savings @ 37%, 100% bonus
14.8%
5/7/15-yr reclass as % of depreciable basis
$566,470
Depreciable basis (38.8% land removed)

Component breakdown

MACRS classReclassified amount% of basis
5-year personal property (FF&E, appliances, decorative finishes, certain electrical)$45,8568.1%
7-year personal property (office equipment, certain agricultural)$00.0%
15-year land improvements (paving, landscaping, fencing, site lighting)$37,7376.7%
Total accelerated$83,59314.8%
27.5-Year Residential Real Property structure (39yr commercial)$482,87785.2%

Land allocation note

For this fixture, the engine used 38.8% land allocation from source: statistical. This is the statistical fallback when reliable county assessor data wasn't available or didn't pass the reliability gate. Estimate comes from the metro → state → national land-ratio hierarchy.

Reconciliation

The engine computed a reconciliation factor (rf_raw) of 1.2989 (B band). Geographic factor: 1.08 (metro_calibrated resolver).

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Ballard SFR + Detached ADU

Ballard / Fremont (Northwest Seattle) · SFR (long-term rental) · Built 1940 · 1750 sqft

$29,562
Year-1 federal savings @ 37%, 100% bonus
14.9%
5/7/15-yr reclass as % of depreciable basis
$535,850
Depreciable basis (38.8% land removed)

Component breakdown

MACRS classReclassified amount% of basis
5-year personal property (FF&E, appliances, decorative finishes, certain electrical)$42,7398.0%
7-year personal property (office equipment, certain agricultural)$00.0%
15-year land improvements (paving, landscaping, fencing, site lighting)$37,1586.9%
Total accelerated$79,89714.9%
27.5-Year Residential Real Property structure (39yr commercial)$455,95385.1%

Land allocation note

For this fixture, the engine used 38.8% land allocation from source: statistical. This is the statistical fallback when reliable county assessor data wasn't available or didn't pass the reliability gate. Estimate comes from the metro → state → national land-ratio hierarchy.

Reconciliation

The engine computed a reconciliation factor (rf_raw) of 1.3028 (B band). Geographic factor: 1.08 (metro_calibrated resolver).

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West Seattle SFR Rental

West Seattle · SFR (long-term rental) · Built 1962 · 1850 sqft

$26,915
Year-1 federal savings @ 37%, 100% bonus
15.1%
5/7/15-yr reclass as % of depreciable basis
$480,734
Depreciable basis (38.8% land removed)

Component breakdown

MACRS classReclassified amount% of basis
5-year personal property (FF&E, appliances, decorative finishes, certain electrical)$39,1318.1%
7-year personal property (office equipment, certain agricultural)$00.0%
15-year land improvements (paving, landscaping, fencing, site lighting)$33,6117.0%
Total accelerated$72,74215.1%
27.5-Year Residential Real Property structure (39yr commercial)$407,99284.9%

Land allocation note

For this fixture, the engine used 38.8% land allocation from source: statistical. This is the statistical fallback when reliable county assessor data wasn't available or didn't pass the reliability gate. Estimate comes from the metro → state → national land-ratio hierarchy.

Reconciliation

The engine computed a reconciliation factor (rf_raw) of 1.062 (A band). Geographic factor: 1.08 (metro_calibrated resolver).

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Bellevue Eastside Condo

Bellevue / Kirkland (Eastside) · CONDO (long-term rental) · Built 2014 · 1700 sqft

$20,983
Year-1 federal savings @ 37%, 100% bonus
10.2%
5/7/15-yr reclass as % of depreciable basis
$556,116
Depreciable basis (53.1% land removed)

Component breakdown

MACRS classReclassified amount% of basis
5-year personal property (FF&E, appliances, decorative finishes, certain electrical)$51,4499.3%
7-year personal property (office equipment, certain agricultural)$00.0%
15-year land improvements (paving, landscaping, fencing, site lighting)$5,2620.9%
Total accelerated$56,71110.2%
27.5-Year Residential Real Property structure (39yr commercial)$499,40589.8%

Land allocation note

For this fixture, the engine used 53.1% land allocation from source: statistical_premium_floor. This means the engine's component-bottom-up reconstruction cost exceeded 2.0× the implied depreciable basis after subtracting land, the premium land floor was applied to keep the study within audit-defensible territory. This is common for resort-tier properties where land scarcity premiums dominate the purchase price.

Reconciliation

The engine computed a reconciliation factor (rf_raw) of 1.8136 (D band). Geographic factor: 1.1 (state resolver).

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Renton Suburban Fourplex

Renton / Kent (suburban King County south) · FOURPLEX (long-term rental) · Built 1985 · 3400 sqft

$24,716
Year-1 federal savings @ 37%, 100% bonus
13.9%
5/7/15-yr reclass as % of depreciable basis
$479,500
Depreciable basis (30.0% land removed)

Component breakdown

MACRS classReclassified amount% of basis
5-year personal property (FF&E, appliances, decorative finishes, certain electrical)$49,69710.4%
7-year personal property (office equipment, certain agricultural)$00.0%
15-year land improvements (paving, landscaping, fencing, site lighting)$17,1033.6%
Total accelerated$66,80013.9%
27.5-Year Residential Real Property structure (39yr commercial)$412,70086.1%

Land allocation note

For this fixture, the engine used 30.0% land allocation from source: statistical. This is the statistical fallback when reliable county assessor data wasn't available or didn't pass the reliability gate. Estimate comes from the metro → state → national land-ratio hierarchy.

Reconciliation

The engine computed a reconciliation factor (rf_raw) of 0.5873 (A_low band). Geographic factor: 1.1 (state resolver).

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