30A vs Destin Cost Segregation: Walton vs Okaloosa County Beach Markets Compared

Quick answer

Across 5 engine fixtures for the 30A area, the differences between Destin and the rest of 30A 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 %
Seaside Beach Cottage SFR · STR	Seaside / WaterColor	$2,150,000	27.2%	$108,113	50.0%
Rosemary Beach Luxury Cottage SFR · STR	Rosemary Beach / Alys Beach	$2,850,000	28.9%	$152,148	50.0%
Grayton Beach SFR STR SFR · STR	Grayton Beach / Blue Mountain Beach	$1,485,000	26.9%	$107,473	27.2%
Inlet Beach New-Build SFR · STR	Inlet Beach / Watersound	$1,185,000	27.7%	$93,069	23.5%
Dune Allen LTR SFR	Dune Allen / Santa Rosa Beach (off-corridor)	$825,000	17.5%	$40,711	23.8%

What's the same

• Tax law. Both sub-markets are in Florida, subject to the same state conformity rules: Florida has no state individual income tax. Federal §168(k) bonus depreciation under OBBBA's restored 100% is the entire tax story for 30A STR owners. No state addback, no decoupling math. Combined with Walton County's STR-friendly regulatory environment, this is among the cleanest cost-seg tax positions in the country. The 6% Florida state sales tax plus 5% Walton County tourist development tax ('bed tax') apply to short-term rental income but don't affect the federal income tax computation cost segregation changes.
• 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. Destin 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. Destin concentrates in higher-end vacation rental product, while the broader 30A market includes more off-market SFRs and longer-tail product.
• HOA capital assessment patterns. Resort-tier HOAs in Destin 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: Destin wins on absolute dollars (higher purchase prices = larger absolute deductions). If you measure ROI as savings-per-dollar-of-purchase: the broader 30A 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 30A non-resort areas produce more reclassification per dollar.

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