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Event venue · Ömerli, Istanbul

A flour mill,
for 10 to 450.

Four rooms and a terrace on the Ömerli stream, kept as the Kalkan brothers built them: pine trusses, brick vaults, millstones in the floor. Weddings, company days, launches and conferences.

Built
1911
Restored
2019
Spaces
4 rooms + a terrace
Largest room
450 standing
From Kadıköy
35 min by car
The Grain Hall laid for a wedding: timber trusses, draped fabric and a chandelier over a long dance floor
Grain Hall, laid for a wedding of 220Pine trusses, 1911 · hoist, 1928

Capacity

How many, and how?

Pick a layout and a head-count. The plan fills in the rooms that take you; numbers are fire-safety maximums, so a comfortable dinner is about 10% fewer.

Layout

Guests

2 of 5 spaces take 120 guests banquet-style.

ÖMERLİ STREAMYARD · ENTRANCEFIRST FLOORGrain Hall280 · 620 m²Millstone Room96 · 210 m²Sack Loft60 · 160 m²Engine Room24 · 85 m²Mill Race Terrace140 · 300 m²
FitsToo small or not in this layout
  • Grain Hall

    Ground floor · 620 m²
    Fits · up to 280
    from ₺165,000 a day (Mon–Thu)
  • Millstone Room

    Ground floor · 210 m²
    Too small · up to 96
    from ₺58,000 a day (Mon–Thu)
  • Sack Loft

    First floor · 160 m²
    Too small · up to 60
    from ₺42,000 a day (Mon–Thu)
  • Engine Room

    Ground floor · 85 m²
    Too small · up to 24
    from ₺22,000 a day (Mon–Thu)
  • Mill Race Terrace

    Outdoors · April to October · 300 m²
    Fits · up to 140
    from ₺48,000 a day (Mon–Thu)

The building

Seventy-six years of flour, then thirty of silence

  1. 1911

    The Kalkan brothers build a water-powered flour mill on the Ömerli stream.

  2. 1952

    A diesel engine replaces the wheel; the Engine Room is built beside the race.

  3. 1987

    Milling stops. The building stands empty for thirty years.

  4. 2019

    Restored with the original trusses, millstones and hoist kept in place.

Included in the hire

No surprise line items

Hire runs 08:00 to 01:30, set-up and clear-down included. Weekday rates from ₺22,000.

Every space, every number
  • Tables and 450 chairs

    Oak trestles, rounds of 10 and bentwood chairs.

  • Sound and light

    Two 5 kW PA systems, a 16-channel desk, warm house lighting on dimmers.

  • A venue manager

    From the first visit to the last guest; one person, one phone number.

  • Parking for 80

    Plus a coach bay, and a shuttle from Ümraniye metro for larger events.

From the guestbook

What people remember

  • We had 260 people for dinner in the Grain Hall and it still felt like a room, not a hangar. Selin ran the night like a stage manager.

    Ayşe & Kaan OralWedding, September 2025
  • Two days, 380 attendees, the loft for workshops. The blackout and the rigging points saved our production budget.

    Mert YalınHead of events, Kestrel Labs

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Viewings

Come and walk it

Viewings by appointment, usually with Selin, our venue manager. Bring your planner and your doubts.

Değirmen Yolu 434797 Ömerli/Çekmeköyİstanbul

Viewings by appointment in these hours. 35 minutes from Kadıköy outside rush hour; follow the signs for Ömerli Barajı, then the stream.

+90 216 000 00 00

Opening hours

Opening hours, Old Mill Hall
MondayClosed
Tuesday10:00–18:00
Wednesday10:00–18:00
ThursdayToday10:00–18:00
Friday10:00–16:00
Saturday11:00–15:00
SundayClosed

Questions

Before you enquire

Can we use our own caterer?

Yes. Our in-house partner is Kiln Kitchen; an outside caterer pays a ₺15,000 kitchen fee and needs our food-safety checklist.

How late can we go?

Music until 01:00 indoors and 23:00 on the terrace, guests out by 01:30. We’re by a village, and we’d like to stay welcome there.

How do we hold a date?

Send an enquiry and we’ll hold the date for seven days, free. A 30% deposit confirms it.

Is the building accessible?

Every space is step-free or served by the lift; there are two accessible toilets and a hearing loop in the Grain Hall.

Hold a date for seven days, free

Tell us the day, the head-count and the shape of it. We reply within one working day.