A buy-and-sell platform exclusive to the residents of a condominium
A native iOS and Android app where residents list, negotiate and arrange trades inside their own condominium, with listings organized by building.
- On the App Store and Google Play
- Neighbors selling, building by building
- Disputes mediated inside the app
The challenge
In a large condominium, sales between neighbors happened in messaging groups: listings got lost in the middle of the conversation, nobody knew which building the seller lived in, and management had no way to mediate a problem that happened outside any official channel.
The solution
A marketplace closed to residents, in the classifieds format everyone already knows, with the condominium's structure built in: each listing belongs to a building, search filters by building and category, and buyer and seller talk inside the app, where management can mediate when asked.
What was delivered
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Residents only
Sign-up linked to the unit and approved by management: everyone on the app lives in the condominium.
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Listings by building
Each listing shows the seller's building, and search filters by building, category and type: sale, trade or donation.
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Chat inside the app
Buyer and seller agree on price, pickup and delivery without exchanging phone numbers.
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Mediation by management
Reported listings go to moderation, and management follows the negotiation when someone asks for help.
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Mobile notifications
Alerts for new messages, interest in a listing and new items in the building or category the resident follows.
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Photos and categories
Listings with photos, description and category, published in a few steps from the phone.
Modules
- 01
Sign-up and approval
Resident onboarding linked to the unit and building, approved by management.
- 02
Classifieds
Listings with photos, category, type of deal and building, with search and filters.
- 03
Conversations
Chat between buyer and seller, with history tied to the listing.
- 04
Moderation
Reports, listing removal and negotiation follow-up by management.
Access profiles
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Resident
Lists items, searches by building and category, chats and closes deals inside the app.
-
Management
Approves sign-ups, moderates listings and mediates negotiations when asked.
Integrations
- App Store
- Google Play
- Push notifications
How it was built
- Application React Native
- A single codebase for iOS and Android, published in both stores, with the same experience on both systems and one base to maintain.
Details
A messaging group handles the conversation, not the sale. A listing disappears in minutes, the photo gets lost in the chat, and management only finds out about a problem once it has become a complaint.
The app gives neighbor-to-neighbor sales a place where they can be found, filtered and followed. And because it is closed to residents, it removes the distrust that stalls a deal with a stranger: the person on the other side always lives in the same condominium.
