Auction Website Development
Real-time bidding platforms built for car auctions, property sales, equipment liquidations, charity events and more.
We design and build custom auction websites with live WebSocket bidding, Stripe payments, seller dashboards and full admin controls. Whether you are running a one-day charity gala or a 24/7 vehicle marketplace, we build the platform around your format, category and buyer base.
Platform features
What your auction platform includes
Real-time WebSocket bidding engine with instant updates
Live and timed auction formats with auto-extend timers
Proxy and maximum bid automation
Stripe-powered payments with escrow and deposit holds
Seller and buyer dashboards with full bid history
Email and SMS outbid and win notifications
Reserve price management with auctioneer override controls
Admin moderation, fraud flagging and account management
Mobile-responsive bidding interface for all devices
Schema-marked listing pages for search visibility
Auction types
We build for every auction category
Each auction type has its own rules, buyer expectations and legal requirements. Pick your category to see a platform built around your specific needs.
Car Auction
Real-time bidding for vehicles, dealer lots and private sellers
ExploreReal Estate Auction
Online property auctions for agents, investors and homeowners
ExploreEquipment Auction
Heavy machinery and industrial equipment auctions done online
ExploreLivestock Auction
Online cattle, sheep and poultry auctions for farms and markets
ExploreArt and Collectibles Auction
Curated online auctions for art, antiques and rare collectibles
ExploreCharity Auction
Fundraising auction websites for nonprofits and events
ExploreGovernment Surplus Auction
Compliant online auctions for public sector surplus disposal
ExploreStorage Unit Auction
Online storage locker auctions for facility operators
ExploreReal-time bidding
A bidding engine built for speed and fairness
Our WebSocket bidding engine delivers sub-second updates to every active bidder. No page refreshes, no stale prices, no missed bids.
Sub-second updates
WebSocket connections push every new bid to all open screens instantly, so no bidder ever sees a stale price.
Proxy bidding
Buyers set a maximum and the engine bids on their behalf up to their limit, one increment at a time.
Auto-extend timers
Last-minute bids trigger a configurable time extension, keeping auctions fair and maximising final prices.
Deposit and hold
Stripe pre-authorises a deposit at registration. Funds are captured on a win or released on a loss automatically.
Outbid notifications
Email and SMS alerts fire the moment a bidder is outbid, pulling them back before the lot closes.
Increment rules
Custom bid increment ladders keep bids meaningful at every price level and prevent micro-increment gaming.
How we work
A clear path from idea to live auction
Scope and plan
We learn your auction format, category, buyer base and compliance needs, then scope the platform and price it clearly.
Design and approve
We design the bidder experience, seller dashboard and admin panel. You approve before a line of code is written.
Build and test
We build in sprints with regular demos. The bidding engine is load-tested before any live event goes near it.
Launch and support
We go live with you and stay on hand for your first auctions. Ongoing support and improvements are available after launch.
Why us
Why businesses choose SOHOON
A few reasons auction website clients trust us with work that matters to their business.
7
Years in business
Multi
Niche experience
On-time
Delivery focus
1
Accountable partner
A 7-year software house
Not a freelancer and not a faceless marketplace. A settled team that has shipped real products since 2019 across many industries.
Experience in your niche
We have built for insurance, healthcare, gyms, restaurants, HVAC, mortgage, real estate and more, so we understand your world quickly.
Fixed scope, clear quotes
You get a written quote and milestone plan before we start. No surprise invoices and no scope creep.
One accountable team
A single point of contact who owns your project end to end, with senior engineers and designers behind them.
Secure and compliant
We build with security in mind, including HIPAA-aware solutions for healthcare and insurance clients who need them.
Here after launch
We do not disappear on go-live. Maintenance, support and improvements are part of how we work.
Auction website pricing
Starting prices for custom auction website development. Switch currency to see rates in your region and book a free call for an exact quote based on your platform requirements.
Hourly rate
$30/hour
Flexible hourly engagement for changes, support and ongoing work. Most projects use a fixed quote below.
Starter Store
$899
Launch and start selling quickly.
- Up to 50 products
- Secure checkout
- Payment gateway setup
Growth Store
from $2,999
Custom store built to convert.
- Custom design
- Unlimited products
- CRO + integrations
Marketplace
from $8,000
Multi-vendor platform with payouts.
- Vendor dashboards
- Commissions & payouts
- Admin moderation
Not sure which option fits?
Book a free appointment and we will scope your project and give you an exact quote.
Starting estimates shown in USD. Conversions from USD are approximate; your final fixed quote is confirmed after a free consultation.
Trusted by auction operators
Real words from owners we have worked with. We use first name and industry only, out of respect for our clients' privacy.
“The AI receptionist catches the calls we used to miss after hours. Members book classes on their own now and my staff can focus on the floor.”
“Our online ordering just works. Orders flow straight to the kitchen and the whole thing was live faster than I expected.”
“They handled our HIPAA requirements properly and kept it simple for us. The portal made enrollments far less painful for my clients.”
Testimonials reflect real client feedback. Names are shortened and shown with industry only at our clients' request.
FAQ
Auction website development: questions answered
What types of auction platforms do you build?
We build car, real estate, equipment, livestock, art, charity, government surplus and storage unit auction websites. If your category is not listed, contact us — the bidding engine applies to almost any asset type.
Do you build live real-time bidding or only timed auctions?
We build both. Live bidding uses WebSockets so the price updates on every screen within milliseconds of a bid. Timed auctions close at a set deadline with optional auto-extend when a bid arrives in the final minutes.
How are payments handled on an auction platform?
We integrate Stripe for buyer deposits, payment holds on registration and final settlement on winning bids. Funds can be routed to sellers via Stripe Connect with automatic commission splits.
Can the platform handle multiple sellers and multiple simultaneous auctions?
Yes. The seller dashboard lets multiple vendors list independently. The bidding engine supports hundreds of concurrent lots with real-time updates delivered to all active bidders.
How much does auction website development cost?
It depends on scope. We run a free consultation, scope the work, and give you a clear fixed quote before anything begins. You can also see starting prices on this page and switch to your currency.
How long does it take?
Most projects start within a few days of approval. We share a milestone timeline up front so you always know what is happening and when, and you see progress in regular demos.
Do you provide support after launch?
Yes. We offer maintenance, updates, security and improvements after go-live, so your auction website development keeps working and gets better over time.
Ready to launch your auction platform?
Book a free appointment and we will scope your auction website, answer your questions and send a clear quote within one business day.