Turn your ideas or passion into reality — with By Design UK

Multi-Vendor Marketplace (Etsy, eBay, Amazon) — From £2,200

Marketplaces & Online Shops

Multi-Vendor Marketplace (Etsy, eBay, Amazon)

Build your own marketplace: many sellers, one platform, you earn commission.

From £2,200Fixed-price build
3–5 weeksTypical timeline
100%Code ownership
Contact Us
What is a Multi-Vendor Marketplace? A multi-vendor marketplace lets many sellers list products on your site while you take a commission. It covers buyer accounts, seller dashboards, payments and disputes.

Who this is for

Founders and startups with an idea, businesses that want their own branded version, and anyone who has searched for how to build a platform like this and wants a fixed price, a clear plan and full ownership of the result. No technical knowledge needed: we explain everything in plain English.

Why this price is worth it

  • Most UK agencies start from around £3,000 for a build like this. Ours starts from £2,200, fixed in writing before we begin.
  • AI-accelerated development means faster delivery without cutting corners.
  • You own 100% of the code, with no lock-in and no licence fees to us.
  • One point of contact, plain English, no account managers.

Everything included

  • Seller sign-up and shop pages
  • Product listings, search and filters
  • Buyer accounts, reviews and wishlists
  • Commission, payouts and split payments
  • Order and dispute management
  • Admin controls for sellers and fees
  • Mobile-friendly design that works on every device
  • Secure hosting setup, backups and launch support

How it works

  1. Discovery call — we talk through your idea, your audience and what makes yours different.
  2. Scope and fixed price — you receive a written scope, timeline and price before anything starts.
  3. Design — you approve screens and the user journey before we build.
  4. Build and review — regular progress demos so you see it come together.
  5. Test and launch — we test thoroughly, deploy it live and hand over the full code.
  6. Grow — optional support, new features and traffic growth once you are live.

Compare Marketplaces & Online Shops

Build Price
Multi-Vendor Marketplace (Etsy, eBay, Amazon) From £2,200 This page
Classifieds Website (Gumtree, Craigslist) From £2,200 View
Dropshipping Store From £295 View
Affiliate Website From £750 View
Subscription Box Store From £950 View
Print-on-Demand Store From £295 View
Price Comparison Website From £21,500 View
Coupon & Deals Website From £795 View
B2B Wholesale Portal From £28,000 View
Auction Website (eBay, Catawiki) From £375 View
Rental Marketplace From £43,000 View
Business Directory Website From £2,200 View

Need something custom or not listed?   See this whole section · All platform builds

Questions people ask

How much does a Multi-Vendor Marketplace cost?

Our price starts from £2,200. Most UK agencies start from around £3,000 for the same kind of build. The final figure depends on the features you choose and is confirmed in writing before we begin.

How long does it take?

Typically 3–5 weeks from sign-off, depending on scope. We agree a clear timeline up front.

Do I own the code?

Yes. You receive the full source code and own everything we build for you.

Can I start small and add features later?

Yes. Many clients launch a focused first version, then add features once real users arrive. We scope it so nothing has to be rebuilt later.

Do you also run the platform for me?

We specialise in building. Once live, you can run it yourself or take one of our optional support plans for monitoring and fixes.

What about licences and regulation?

We build the software. Any licences, registrations or approvals your business needs to operate (for example FCA, CQC or ICO registration, or content rights) stay with you, and we will point out where they are likely to apply.

Ready to build yours? Tell us your idea.

Independent build service. Other brands named here are used only to describe the type of platform and are not affiliated with or endorsed by us.


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