Rich finance geeks relocating to Manhattan, or those waiting out a costly renovation, might want to check out J.P. Morgan’s former carriage house, now that it is back on the rental market — it’s asking $80,000 a month furnished and $75,000 a month unfurnished.

Located at 118 E. 83rd St., the stately manse, which includes a hidden pool, is owned by businessman Karan Trehan, who renovated it with his now ex-wife.

The listing brokers are Steve Halpern and Christine Mariani, of Compass.