The expiration date of any permit issued under Title 16 and/or Title 17 for a low income housing project that receives federal funding, whether directly or through tax credits, and for which a deed restriction is required for each unit of affordable housing preserving the unit as affordable housing for no less than 40 years, may be automatically extended by the Planning Director, on good cause shown, for up to 2 additional 2 year periods. If the permit has already expired, the extension(s) may be granted so long as not more than 60 days have passed between the expiration date and the extension request. Extension requests must be submitted to the Planning Director in writing.