BigBerri Logo

BigBerri builds your SaaS product from MVP to launch.
Let's work together.

Get In Touch

LocationManchester, UK
← Back to Blog
Marketplaces11 min read

How to Build a Marketplace MVP: The Chicken-and-Egg Problem Solved

BT

BigBerri Team

Marketplace Expert · 5 December 2024

The Marketplace Challenge

Marketplaces face a unique challenge: buyers want sellers, sellers want buyers. Here's how successful UK marketplaces solved it.

Understanding the Cold Start Problem

A marketplace with no suppliers has nothing for buyers. A marketplace with no buyers has nothing for suppliers.

Breaking this cycle requires creative strategies.

Strategy 1: Single-Player Mode

Build value for one side that doesn't require the other side.

**Example**: OpenTable started by giving restaurants a reservation system. Restaurants got value immediately. Diners came later.

**How to Apply**:

  • • What tools do suppliers need regardless of buyers?
  • • Can you solve an existing problem for one side?
  • Strategy 2: Fake It Until You Make It

    Manually fulfill the supply side yourself.

    **Example**: Zappos founder bought shoes from shops and shipped them himself to test demand.

    **How to Apply**:

  • • Can you personally provide the service?
  • • Can you partner with suppliers before building?
  • Strategy 3: Constrain the Market

    Start hyper-local or hyper-niche.

    **Example**: Uber launched in SF only with black cars. Facebook started at Harvard only.

    **How to Apply**:

  • • What's the smallest market where you can dominate?
  • • Start in one city, one category, one demographic
  • Strategy 4: Lead with Value

    Give away something valuable to attract one side.

    **Example**: LinkedIn let people build professional profiles—valuable without connections.

    **How to Apply**:

  • • What free tool would attract your supply side?
  • • What content would attract your demand side?
  • Marketplace MVP Features

    **Essential**:

  • • Basic listings or profiles
  • • Search functionality
  • • Contact/booking mechanism
  • • Simple payment processing
  • **Skip for MVP**:

  • • Reviews and ratings
  • • Messaging systems
  • • Complex matching
  • • Mobile apps
  • UK Marketplace Success Stories

    **Deliveroo**: Started with 3 restaurants in Chelsea

    **JustPark**: Started with specific car parks

    **Treatwell**: Started with London salons only

    All started small, solved the chicken-and-egg locally, then expanded.

    Measuring Marketplace Health

    **Supply Health**:

  • • Active listings
  • • Response rate
  • • Time to first transaction
  • **Demand Health**:

  • • Search to contact rate
  • • Contact to transaction rate
  • • Repeat purchase rate
  • **Market Health**:

  • • Transactions per listing
  • • Take rate sustainability
  • • Growth of both sides
  • Your Marketplace MVP Playbook

  • 1. **Week 1-2**: Choose your constrained market
  • 2. **Week 3-4**: Manually onboard 10-20 suppliers
  • 3. **Week 5-8**: Build minimal platform
  • 4. **Week 9-10**: Drive first demand
  • 5. **Week 11-12**: Iterate on matching and experience
  • The best marketplaces solve the chicken-and-egg problem through clever constraints and manual hustle before automating.

    Tags:

    marketplaceMVPtwo-sided marketstartup strategyUK startups

    Need Help with Your Project?

    Our expert team is ready to help you build your next web or mobile application.