Auction Website Development, Built on a Working Auction Engine
Most agencies start your auction site from an empty folder and bill you for six months of rebuilding bidding, timers and invoicing. We start from software that already runs auctions, then build the parts that are specific to your business. One-time license from $899, custom features typically $1,000 to $10,000.
What Our Auction Website Development Covers
You get a complete auction website on your own domain: bidding, bidder accounts, payments, invoicing and an admin panel, plus whatever your market needs that a standard install doesn't have.
The engine already handles timed auctions and live simulcast sales, sealed bids, proxy bidding, soft close, Buy It Now, reserve prices, bidder approval, deposits and card authorization, private and invitation-only sales, document uploads on lots, buyer's premium and invoicing, and Escrow.com for high-value items. None of that has to be written again.
Our developers spend your budget on what makes your site different: a new auction format, a lot template for your industry, an integration with your ERP or inventory system, a payment gateway for your country, or a mobile app with your name on it.
A Typical Project
| Software license | $899 to $2,999, one time |
| Custom features | $1,000 to $10,000, one time |
| Installation | Included |
| Standard launch | 2 to 5 days |
| With custom work | Plus 2 to 4 weeks |
| Hosting | Your server, your host |
How an Auction Website Project Runs
Five steps, with a staging site you can click through before anything goes live.
1. Scoping
We go through your sale formats, lot types, fees and payment flow, and compare them with what the engine already does. You get a written list of what's standard, what's custom, and a fixed price for the custom part.
2. Installation
We install the software on your server, connect your domain, SSL, email and payment gateway, and apply your branding. This part is included in the license.
3. Custom build
A project manager runs the work in short sprints. Each feature lands on a staging environment first, so you test it with real lots before your bidders ever see it.
4. Testing and launch
We run a test auction end to end: registration, deposits, bidding, soft close, invoice and payment. Then the site goes live on your domain.
5. Handover
Your team gets admin training and documentation. Core updates and security patches are included for 12 months, with an optional maintenance plan after that.
Optional: mobile apps
Native iOS and Android apps for your bidders, built as custom work and published to the App Store and Google Play under your brand.
Custom Features We Build
Typical requests, each priced once in the $1,000 to $10,000 range depending on scope.
New bidding rules
Multi-stage rounds, handicap systems, unusual timer rules or a format nobody else runs. The core engine is extended, not replaced.
Industry lot templates
Structured fields and filters for your inventory, from engine hours and VINs to catalogue numbers, certificates or acreage.
Integrations
ERP and inventory sync, CRM, shipping APIs such as FedEx and UPS, KYC checks, or a local payment gateway with a documented API.
Community features
Public comments and seller Q&A on listings, the format that enthusiast sites like Bring a Trailer and Cars & Bids are built around.
Design to your brand
Layouts and pages designed around your audience instead of a generic theme, with no "powered by" links.
iOS and Android apps
Native bidder apps with push notifications, published to both stores for you.
Auction Websites We Build by Industry
Each starts from the same engine, with the lot fields and sale rules that market expects.
🚗 Car auctions
Dealer-only and public sales, VIN decoding, condition reports, deposits and Escrow.com for expensive units.
Car auction software →🚜 Farm and heavy equipment
Engine hours, serial numbers, inspection reports, simulcast ring sales and pickup scheduling.
Farm equipment auction software →🏡 Real estate and land
Due diligence documents, proof of funds, earnest money deposits and multi-parcel bidding.
Real estate auction software →🎯 Penny and unique-bid auctions
Bid packs, real-time timers, lowest unique bid and anti-fraud controls.
Penny auction script →📉 Reverse auctions and procurement
Supplier pre-qualification, weighted scoring, audit trails and draft purchase orders.
Reverse auction software →🔨 Auction houses
Consignment intake, live clerking, buyer's premium, invoicing and consignor settlements.
Auctioneer software →Three Ways to Get an Auction Website Built
Cost ranges for agency builds and SaaS come from our auction website cost guide.
| Our Engine + Custom Work | Full Custom Agency Build | SaaS Auction Platform | |
|---|---|---|---|
| Up-front cost | $899 to $2,999 + $1,000 to $10,000 | $80,000 to $400,000+ | Low setup, then monthly fees |
| Ongoing fees | Your hosting only | Retainer for fixes and changes | Subscription, often plus fees per lot or sale |
| Time to launch | Days to a few weeks | 6+ months | Days |
| Bidding engine | Already running in production | Written from scratch, tested on your sales | Vendor's, fixed |
| Custom features | Yes, priced per feature | Yes | Rarely |
| Hosting and data | Your server, your database | Yours | Vendor-hosted |
Who Owns the Code and the Bidder List
On a SaaS platform or a marketplace, your bidders are the vendor's users. Leave, and you start again with an empty list.
Our software runs on a server you control, under your brand and domain. Bidder accounts, sales history, invoices and payment records live in your database. Custom development clients receive the full unencrypted source code, so you can host it anywhere and hire other developers later if you want to.
What you keep
- Your domain and brand, with no vendor branding
- Every bidder account and email address
- Full sales, invoice and payment history
- 100% of your buyer's premium, with no commission to us
- Source code for the custom work we do for you
Pricing: License Plus Custom Work
Pick a license, then add custom features if you need them. Installation on your server is included with every plan.
Standard
$899
One-time fee
- ✓ Full auction engine and admin panel
- ✓ Stripe and PayPal
- ✓ Installation on your server
- ✓ 12 months of updates
Professional
$1,999
One-time fee
- ✓ Everything in Standard
- ✓ 10 hours of custom development
- ✓ White-label branding
- ✓ Email and SMS alerts
Enterprise
$2,999
One-time fee
- ✓ Everything in Professional
- ✓ 30 hours of custom development
- ✓ Multi-vendor support
- ✓ API and CRM integrations
Custom features beyond the included hours are quoted once, typically $1,000 to $10,000. Send us your requirements →
Planning Your Auction Website
Guides that help you budget and scope the project before you talk to any developer.
Auction Website Development FAQ
Questions we get before most projects start.
Tell Us What Your Auction Site Needs
Send your sale formats, lot types and must-have features. We'll reply with what's standard, what's custom, and a fixed one-time price.
One-time license • Setup included • Your server, your brand • No commission
