LEGO modular building auctions: Creator Expert sets, searched at once

A factory-sealed LEGO modular building, from the Creator Expert street-scene range, is one of the most consistently strong performers in the entire secondary LEGO market, and originality of the shrink wrap, how long the set has been retired, and its position within the wider street collection drive value far more than the original retail price it launched at.

Why the right modular set is easy to miss

Sealed modular buildings get listed by hundreds of individual sellers across different platforms with no consistent naming, so a genuinely factory-sealed, long-retired set could appear anywhere, at any time, with no warning.

One search across every platform

Auction Bid Assistant's free browser extension searches the-saleroom, EasyLive, Bidspotter, Invaluable, NumisBids, iCollector and LiveAuctionWorld simultaneously, alongside eBay. A search for a set number, building name, or "LEGO modular building sealed" returns matching lots across all of them, with images, prices, and retirement status shown, sorted by platform in tabs.

Real results for "LEGO Creator Expert modular building sealed": a genuine "Lego Creator Expert (10264) Corner Garage, BNIB Sealed Retired Modular Building" listing, found in one search.

It works by searching from inside your own browser, the same as opening and searching each site yourself, just done in seconds. Nothing is stored on our servers, permissions are minimal, and the extension never places a bid on your behalf.

Alerts: catch a sealed modular set before it's gone

Genuinely sealed, long-retired modular buildings sell within hours of listing, so save a search (a set number, a building name, or "LEGO modular building sealed" generally) and get emailed the moment a new lot matches it, across all covered platforms including eBay, rather than relying on remembering to check each one.

Want to try before installing?

The same search box works on this website with no install at all for eBay, iCollector, LiveAuctionWorld and Featured Auction catalogues, a quick way to see matching modular building lots before adding the rest of the platforms via the extension.

Built for how set collectors actually work

Save any lot with one click from search results, export your shortlist as a printable PDF or CSV before a sale, and on the day itself the optional live bridge feeds the auctioneer's asking price into the free bid calculator, so your maximum (with buyer's premium and VAT included) is always in front of you.

Common questions