How do I sell LEGO second hand
List a second-hand LEGO set on Brick Deals for free, describe the condition, and post it with Royal Mail when it sells. You keep the full price.
You sell second-hand LEGO by listing the set, saying exactly what condition it is in, and posting it to the buyer after it sells. On Brick Deals that means a free account, photos, and a price you choose. You keep that price. The buyer pays Royal Mail postage and a 5% Buyer Protection fee on the item, not on the postage.
The quickest route is the set checker on the homepage. Search the set name or set number, say whether the box is opened or unopened, and choose Pristine, Good, or Poor. When you continue, the sell form already knows the set. You can also open Start selling and pick the set yourself. Either way, create an account if you do not have one. No card is required to list.
What you can sell
Complete sets are the simplest sale, especially retired sets from themes collectors still want, such as Star Wars, Technic, Icons, and Ideas. An opened set with every part is still worth listing. You do not need the original box, and you do not need the instructions, although both help the price and help the buyer.
Incomplete sets sell as well, if you are honest about the gaps. Minifigures and loose bricks can be listed on their own. A mixed tub is usually worth less than the same bricks sorted into a known set, because the buyer is paying for certainty. If you are unsure which set you have, the set number is printed on the instructions and often on a sticker inside the box.
How to write the listing
Choose a condition the buyer can trust. On the sell form those are New - Sealed, New - Open Box, Used - No missing parts, and Used - Missing some parts. If parts are missing, name them. Mention the box, the instructions, stickers, and every minifigure. Photograph the set in daylight against a plain background: the box front, any dents, the minifigures, and a clear shot of the bricks.
Price from what similar sets have actually sold for, not from the first asking price you see. The homepage checker estimates a range from recent resale prices and then adjusts it for an opened or unopened box and for condition. Use that as a starting point, then look at live listings in the catalogue. A price that matches the condition sells. A hopeful price sits there.
What happens after it sells
We email you when someone buys. Their payment is held until delivery, which is the point of Buyer Protection. They choose Royal Mail Tracked 24 or Tracked 48, and either a Post Office drop-off or a collection. Drop-off means you print the prepaid label. Collection means Royal Mail brings the label, so you do not need a printer. Send the parcel within 5 days. You cannot use your own postage or type a tracking number in by hand.
Delivery is United Kingdom addresses only. When Royal Mail marks the parcel delivered, the payment is released and you receive the full item price. Orders of £300 or more stay on hold for 48 hours so the buyer can inspect the set. Your first payout needs a short identity check so the money can reach your bank. The seller guide walks through list, post, and get paid. The fees page shows a worked example.
Mistakes that slow a sale down
If a buyer reports that the set is not as described, payment release pauses while the case is reviewed. Clear photos and a precise description prevent most of those conversations. Read disputes and refunds before you list anything valuable, so you know what happens if a part really is missing.
- Guessing the set number, or leaving the title as a nickname only you use.
- Saying the set is complete when a minifigure, sticker sheet, or instruction booklet is missing.
- Using dark photos, or one photo of a closed box for a used set.
- Pricing a built set as if it were still sealed.
- Packing a heavy set in a thin bag. Use a proper box and follow the delivery tips.
