Seattle vs Bellevue Cost Segregation: Same Tax Position, Different STR Regimes and Property Mix

Quick answer

Across 5 engine fixtures for the Seattle area, the differences between Bellevue and the rest of Seattle come down to three factors: land allocation, property archetype mix, and HOA capital-assessment patterns. See the per-fixture detail below.

Side-by-side per-fixture

Property	Sub-market	Price	Reclass %	Y1 fed savings @ 37%	Land %
Capitol Hill Craftsman Flip SFR	Capitol Hill / Central District	$925,000	16.3%	$33,808	39.4%
Ballard SFR + Detached ADU SFR	Ballard / Fremont (Northwest Seattle)	$875,000	16.2%	$31,514	40.1%
West Seattle SFR Rental SFR	West Seattle	$785,000	15.8%	$27,828	39.4%
Bellevue Eastside Condo CONDO	Bellevue / Kirkland (Eastside)	$1,185,000	11.4%	$23,477	53.1%
Renton Suburban Fourplex FOURPLEX	Renton / Kent (suburban King County south)	$685,000	19.5%	$35,003	29.1%

What's the same

• Tax law. Both sub-markets are in Washington, subject to the same state conformity rules: Washington has no state individual income tax, federal §168(k) bonus depreciation is the entire income-tax story for Seattle investors. But the WA tax landscape has two distinct features: a 7% capital gains tax on long-term gains above $250K (rental real estate generally exempt from this specific tax), and the B&O excise tax on rental business gross receipts (varies by rental classification). Neither affects the cost-seg study itself, engine output is unchanged, but both should factor into multi-year operating-economics modeling around the Year-1 cost-seg deduction.
• Federal §168(k) bonus depreciation. 100% under OBBBA, permanently restored for 2025+ acquisitions.
• MACRS classification methodology. Same Rev. Proc. 87-56 asset class life assignments regardless of sub-market.
• Engine methodology. Same RSMeans 2024 base costs, same BLS PPI time index, same geo factor (these are city-level, not sub-market-level).

What's different

• Land allocation. Bellevue typically runs higher on land allocation because of either resort-tier land scarcity premiums or proximity-to-amenity scarcity. This compresses depreciable basis as a percentage of purchase, even though absolute basis is larger.
• Property archetype mix. Bellevue concentrates in higher-end vacation rental product, while the broader Seattle market includes more off-market SFRs and longer-tail product.
• HOA capital assessment patterns. Resort-tier HOAs in Bellevue often levy special assessments for infrastructure (snowmelt, lift access, parking decks). Those assessments add to depreciable basis but distort the per-fixture cost-seg picture if the buyer doesn't separate base purchase from assessments paid.
• STR economics. Different ADR (average daily rate) profiles and material-participation friction.

Which is better for cost-seg ROI?

It depends on what "better" means.

If you measure ROI as Year-1 federal savings dollars: Bellevue wins on absolute dollars (higher purchase prices = larger absolute deductions). If you measure ROI as savings-per-dollar-of-purchase: the broader Seattle non-resort sub-markets typically win (lower land allocation = more depreciable basis as % of price).

For most buyers, the more useful question is: which sub-market matches my buy-box? If you're already buying $2M+ resort-tier product, the cost-seg differential is a rounding error against your decision drivers. If you're price-shopping across sub-markets and considering both, the broader Seattle non-resort areas produce more reclassification per dollar.

Full data with downloadable CSV/PDF   Run your property through the engine