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Case study · İstanbul · a neighbourhood recycling point

What if your bins gave something back?

A grim corner of overflowing containers becomes Geri Dön — a clean, shaded recycling point that sorts five streams, teaches why it matters, and rewards the people who use it right. Geri dön: Turkish for come back — and the root of geri dönüşüm, to recycle.

Before · what is After · what if
İstanbul · a mahalle bin corner  ·  pilot est. ₺63,000
Location
İstanbul · mahalle corner
Streams sorted
5 — plastic to organic
Est. cost
≈ ₺63,000
Status
Proposal · pilot-ready
The why

A bin corner is where a street decides how it treats itself.

Walk through almost any İstanbul neighbourhood and you'll find it: a cluster of containers, lids open, bags piled beside them. Cats tear the bags looking for food. The bins overfill. When the truck comes, what doesn't make it in is left where it falls — and what's left on the street stays on the street.

Nobody designed this corner. It was just where the bins ended up. And because it looks like a dump, people treat it like one — one careless bag invites the next.

A neglected bin corner doesn't just collect rubbish. It teaches a street that nobody is paying attention — so why should they?

The opposite is also true. Make the same corner clear, clean and a little dignified, and people meet it halfway. That is the whole bet of this project: behaviour follows the space.

The intervention

Five small moves that change the habit.

None of this is high-tech. It's a canopy, five clearly-marked bins, a wall that explains itself, and a reason to bother. The design does the persuading.

Plastic
Metal
Glass
Paper
Organic
01

Separate, clearly

Five colour-coded streams with big, obvious symbols — plastic, metal, glass, paper, organic. Designed so getting it right is the easy, default choice.

02

Shelter & shade

A light canopy keeps rain off and the corner tidy. A small, dignified shelter for the strays that already live here — so the cats stop tearing bags open.

03

Teach on the wall

A plain-language panel: what each stream becomes, what one wrong bag costs, and the carbon saved by sorting at home. The corner explains itself.

04

Reward the habit

Sort it right, earn a stamp. Fill a card, trade it for a coupon at a shop on the same street. Doing it properly quietly pays off.

05

Owned by the street

Local shops fund the coupons, a nearby school adopts the wall, residents keep an eye on it. It belongs to them — which is why it lasts.

+

The point

It isn't a bin. It's a small, daily piece of civic education that pays the neighbourhood back for taking part.

The reward loop

Why people keep coming back.

The money never leaves the street. Residents earn it, local shops honour it, and the shops and belediye keep the spot running — a loop the community funds itself.

01

Sort it right

Drop each item in its proper stream.

02

Earn a stamp

A punch-card now; a quick QR scan later.

03

Fill the card

Small wins add up over the week.

04

Spend locally

Redeem for a coupon at a shop on the street.

05

Shops & city refill it

They fund the next round — and it begins again.

the loop pays for itself and keeps the corner alive
What the wall says

A corner that teaches, every single day.

The educational panel isn't a poster nobody reads. It's four plain truths, big enough to catch while you drop a bottle:

One bag of mixed waste can spoil a whole bin of clean recycling.

A bottle sorted right is back on a shelf in weeks. In landfill, it stays for centuries.

Separating at home is the cheapest carbon saving a household has — it costs nothing but a second.

Kept separate, food scraps become compost, not methane.

Honest cost

What a pilot really costs.

No hidden numbers. This is a buildable estimate for one corner — the figure we'd put in front of a mahalle or a belediye.

Canopy + green screen (steel & timber)₺19,000
Five colour-coded bins + housings₺13,500
Educational wall panel + graphics₺8,500
Signage + stream labels₺4,500
Reward pilot (cards + shop kit)₺3,500
Planting + tidy cat shelter₺6,000
Install + contingency₺8,000
Estimated total≈ ₺63,000

A real range: ₺52,000–68,000 depending on the corner. Reward coupons are funded by local shops, not this budget.

What we'd measure

Proof, not a pretty render.

This is a proposal, not a built result. The figures below are targets we'd measure against — recorded at the corner before anything is built, then again after. No claim counts until it's measured.
−60%
wrong items in the wrong stream (contamination)
Target
more waste correctly separated, by volume
Target
~0
loose litter and torn bags within 10 m
Target

And what we'd actually record, the same way every time:

One corner. One street that starts paying attention.

Geri Dön is ready to pilot. If your mahalle or belediye has a bin corner that bothers you, that's where it begins.

Bring Geri Dön to your street