How do you stack tax abatement, historic tax credits, and senior debt on a conversion?

Layering tax abatements, historic credits, and senior debt without timing gaps

City / state tax abatements: NYC 467-m provides up to 35-year property tax abatement for office-to-residential conversions south of 96th Street with affordability set-asides (typically 25% of units affordable at defined AMI bands). DC's Housing in Downtown program offers a 20-year abatement plus access to low-cost city financing. Chicago LaSalle Street Reimagined uses TIF and tax-incentive zones for LaSalle Street office conversions. Each program has its own application, eligibility test, and affordability requirement.

Federal historic tax credits: NPS-certified Part 1 (eligibility) + Part 2 (rehab plan approval) + Part 3 (completion certification) gives a 20% federal historic rehab credit on qualified rehabilitation expenditures. Credit is claimed over 5 years post-completion. Most historic credits are syndicated to a tax-credit equity investor at $0.80 to $0.95 per dollar of credit, which provides upfront equity into the conversion stack.

Sequencing: NPS Part 1 application typically pre-acquisition or early pre-development. Part 2 plan approval before construction-loan close. Tax-credit equity LOI before construction close; closing with the senior debt closing. Tax-abatement application timing depends on the city: NYC 467-m applies through HPD before construction permit issuance; DC Housing in Downtown applies through DMPED before financing close.

Cash-flow mechanics: senior construction debt funds during construction; tax-credit equity contributes per the syndication agreement (typically with capital draws tied to construction milestones); abatement reduces post-completion property tax expense, which raises stabilized NOI and supports a tighter perm take-out. Affordability set-asides reduce gross potential rent on the abated units, so the underwriting must reflect both the tax savings and the rent restriction.