Consular section (the new one!) in Niavaran, on 14th Street [GPS: 35.8183, 51.4758], Their webpage still lists the old address, don't be confused by that! http://www.azembassy.ir/ .
You will need – a copy of passport; 2 passport-sized pictures; to fill the form, given in the consulate; hotel booking for the duration of your stay (booking.com will do) or letter from your embassy (confirm this with them before, to be sure); 60€ cash (depends on your country of origin) to be paid at the consulate.
We applied for visas on Monday morning and got them in the same day, in the evening.
