CCT: Connecticut Historic Structures Rehabilitation Tax Credit Program


Connecticut Commission on
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Historic Preservation and
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Connecticut Historic Structures Rehabilitation Tax Credit Program


The Historic Structures Rehabilitation Tax Credit program, established by Connecticut General Statutes Section 10-416a (PDF), offers tax credits for the conversion of historic commercial and industrial buildings to residential use, including rental or condominium units. Partial tax credits are available for buildings converted to mixed residential and commercial uses.

  • 25% tax credit of the total qualified rehabilitation expenditures

  • qualified rehabilitation expenditures are hard costs associated with rehabilitation of the certified historic structure; site improvements and non-construction costs are excluded

  • buildings must be listed on the National or State Register of Historic Places, either individually or as part of an historic district

  • projects under construction but not placed in service as of July 1, 2006, may qualify

  • state tax credits may be combined with the 20% federal historic preservation tax credits provided the project qualifies under federal law as a substantial rehabilitation of depreciable property as defined by the Internal Revenue Service

  • annual aggregate cap of $15 million in tax credit reservations

  • per building cap is up to $2.7 million in tax credits

  • tax credit vouchers are issued after completion of rehabilitation work or, in phased projects, completion of rehabilitation work to an identifiable portion of the building placed in service for residential use

  • tax credits are available for the tax year in which the building or, in phased projects, an identifiable portion of the building is placed in service for residential use

  • tax credits can only be used by C corporations with tax liability under Chapters 207 through 212 of the Connecticut General Statutes

  • tax credits can be assigned, transferred or conveyed in whole or in part by the owner to others

How to Apply:
Owners seeking tax credits under the Historic Structures Rehabilitation Tax Credit program are required to file the following applications:

Part 1 - “Determination of Historic Structure Status” Form ITC- 100
Part 2 - “Request for Approval of Proposed Rehabilitation Plan” Form ITC- 100a
Part 3 - “Request for Preliminary Certification and Reservation of Tax Credits” Form ITC- 100c
Part 4 - “Request for Final Certification of Completed Rehabilitation” Form ITC-100d
Part 5 - “Request for Issuance of Tax Credit Voucher” Form ITC-100e

Submission and approval of the Part 1 and Part 2 applications prior to the commencement of construction is required, unless the project qualifies under the transition rule in Connecticut General Statutes Section 10-416a (e).


Proposed, ongoing and completed rehabilitation work to the historic building must meet the Standards for Rehabilitation established by CCT. Prior approval of proposed rehabilitation work is required for a reservation of tax credits. Projects underway after July 1, 2006, without prior approval, may qualify if work already undertaken as well as proposed work meet the Standards for Rehabilitation. Partial tax credits may be available.


Instructions (PDF)
Application forms (Adobe Reader Enabled PDF)  (NOTE: Each application form is to be filed separately)
For phased projects, please read the special Instructions and phased form (PDF)
Adopted Regulations (PDF) concerning the Historic Structures Rehabilitation Tax Credit Program

For more information, contact
Julie Carmelich at 860-256-2762 or
julie.carmelich@ct.gov







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