BuyMyBricks
LEGO Icons - Lion Knights' Castle (10305)
Retired 2024 · 4,514 pieces · Factory sealed · Set 10305
This is the Castle set that justifies the wait.
£442.99
Free tracked UK delivery over £85
In stock, 18 sealed. Order before 3pm and it goes out today, tracked and insured.
Genuine and sealed, or your money back.
Found it cheaper somewhere else?
Send us the link and we will match it if we can. We keep our prices in line with the wider UK market, so you are not paying a specialist premium.
Send us the link
Our sealed guarantee
If a set from us is not genuine and factory sealed, tell me and I refund in full and pay the return postage. Returns for any other reason within 30 days.
Pay how you like
Klarna Pay in 3 splits it into three payments with no interest. Chosen at checkout.
Read all our reviews on Trustpilot“Even before I ordered my Lego Defender I was having a good experience with Buy My Bricks, emailed customer service with a few questions and I got a brilliant response.”
Jonathan L., Trustpilot · Verified · Jan 2026
About this set
Retirement and specification
| Set number | 10305 |
|---|---|
| Pieces | 4,514 |
| Released | 2022 |
| Retired | 2024 |
| Built size | 47 x 45 x 37cm |
| Age guide | 18+ |
| Condition | New, factory sealed |
LEGO stopped making this set in 2024. It is not coming back, so sealed copies are what is left.
What you are actually buying
What turns up at your door
The sealed box itselfThe set in its original factory-sealed box, not a bagged or re-boxed copy. Seals and tape are checked before it is listed.
Any box wear, written downRetired boxes have been in lofts and on shelves. Anything worth knowing is on the listing before you buy, not after.
Packed to survive the courierBoxed inside a second carton with fill, so the set box is not the thing taking the knocks.
Tracked and insured, every orderYou get the tracking number the day it leaves. If it is lost or damaged in transit that is ours to sort, not yours.
Why we rate this set
Icons - Lion Knights' Castle (10305)
Released in 2022, LEGO 10305 Lion Knights' Castle marked a triumphant return to the classic Castle theme after a 20-year absence. At 4,514 pieces, it was positioned as the definitive modern Castle set, a landmark release that sold steadily for two years before LEGO retired it in 2024. No reissue has been announced. Sealed examples are now finite. As the set ages out of production and existing stock depletes, unopened boxes become the only way to own it at retail specification.
In depth
The full description
The LEGO Icons – Lion Knights' Castle (10305) is a large-scale adult display build from LEGO’s Icons line (formerly Creator Expert). Icons sets are designed for display and building experience rather than play, with detailed models typically running 2,000-9,000 pieces.
What you get
- Factory-sealed LEGO Icons set 10305
- Original LEGO box with intact factory seals on all flaps
- All original sealed inner bags containing the complete piece count
- Official LEGO instruction booklet, unopened and crease-free
- All minifigures or accessories supplied with the original LEGO release
- Free UK tracked delivery on orders over £85
- 30-day no-quibble returns on every order
Why this retired Icons set matters
LEGO Icons sets (formerly Creator Expert) are LEGO’s flagship adult display builds. They’re designed for display after building, with piece counts typically 2,000-9,000 and build times running 10-40+ hours. Once retired, these flagship sets stay out of production, LEGO occasionally re-releases Icons sets but the specific model and design usually stays finite.
Build experience on Icons is slow and deliberate, these are sets that reward patience and attention.
Who this is for
This is a flagship-scale LEGO set at £440.00. Buyers at this price point are typically adult collectors, experienced builders buying for a serious build session, or gift purchasers buying something substantial for a partner or family member with deep LEGO interest. The box itself becomes a display piece when kept sealed.
Condition guarantee
Every LEGO set we list has been inspected on arrival at our Yorkshire warehouse. We check:
- Original factory seal stickers on all box flaps, no re-taping
- No signs of opening and re-sealing (edge creases, lifted corners)
- Set number on the box matches the listed set
- Box condition graded honestly, minor shelf wear is normal on retired sets and we describe it where present
If any set fails any of these checks on arrival, it doesn’t get listed. If a sealed set reaches you in a state that doesn’t match our description, it comes back on us and we refund in full.
Delivery and returns
Free tracked UK delivery on orders over £85. We ship with Royal Mail, UPS, and DPD depending on the size and weight of the set. Larger boxes go with UPS or DPD because they need more careful handling in transit. 30-day returns, full refund, no questions asked.
Frequently asked questions about the Icons – Lion Knights' Castle 10305
Is the LEGO Icons – Lion Knights' Castle 10305 really sealed?
Yes. Every copy we list has been inspected for original factory seals, no re-taping, and set-number match before it goes on the site. If a box fails any of these checks it doesn’t get listed. If a sealed set arrives at your door looking anything other than factory sealed, we refund in full.
When did LEGO retire the 10305?
LEGO has officially retired this set, which means it’s no longer in production. Exact retirement dates on specific sets can be confirmed via LEGO.com or BrickEconomy. Our stock is sourced from previously-produced sealed inventory through verified wholesale channels.
What’s included in the box?
All original sealed inner bags with the complete piece count, the official LEGO instruction booklet (unopened and crease-free), and all minifigures or accessories supplied with the original LEGO release. Since the box is sealed we don’t open it to verify contents directly, but sealed LEGO boxes with intact factory seals contain the complete set as produced.
How fast will the Icons – Lion Knights' Castle arrive in the UK?
Most orders dispatch within 1-2 working days from our Yorkshire warehouse. Tracked UK delivery typically arrives within 2-3 business days via Royal Mail, UPS, or DPD depending on box size. Free delivery on orders over £85.
Can I return the 10305 if I change my mind?
Yes. 30-day returns on every order, full refund, no questions asked. For change-of-mind returns the customer covers return postage. For faulty or misdescribed sets we cover return postage and refund in full.
Explore more retired LEGO Icons
More sealed retired LEGO from our Icons catalogue:
- LEGO Colosseum 10276 – Retired & Sealed
- LEGO Passenger Airplane 60262 – Retired & Sealed
- LEGO Detective's Office 10246 – Retired & Sealed
Also worth a look:
Common questions
The things people ask
Is it genuine and factory sealed, and what if it is not?
Every set is checked before it is listed: the factory seals and tape first, then the corners and edges, and anything worth knowing about the box goes on the listing. If a set from us is not genuine and factory sealed, tell me and I refund in full and pay the return postage. We sell sealed retired sets and nothing else, so there is no opened or used stock for yours to get mixed up with. Returns for any other reason are within 30 days, sealed, as the returns policy says.
When will it arrive?
Order before 3pm on a working day and it goes out the same day, tracked and insured. UK orders arrive within 1 to 3 working days, and you get the tracking number by email as soon as it is on its way. Tracked UK delivery is free over £85.
How is it packed, and what if the box arrives damaged?
The set box travels inside a second carton with fill, so the courier handles the outer box and not the one you are keeping, and every parcel is insured to its full value. If it still turns up damaged, photograph the outer packaging and the set box before you unpack any further, then email support@buymybricks.com with the photos and your order number the same day. We reply the same working day with a replacement if we have one or a full refund, and we deal with the courier claim ourselves so you do not have to.
Do you ship outside the UK?
Yes to the United States and Canada, with tracked and insured delivery costed at checkout before you pay. We do not ship to the EU at the moment. Everywhere in the UK is covered by the standard tracked service.
Can I return it?
Yes, within 30 days of delivery. If it arrived damaged or not as described, tell us and we pay the return postage and refund in full or replace it. If you have simply changed your mind, the set needs to come back sealed and as it arrived, and the return postage is yours. The refund goes back to the card you paid with within 3 working days of the set landing back with us. Use a tracked service so there is proof of delivery.
Is there a discount code?
Yes. Join the email list on any page and your first-order code comes through in the first email, along with what has just landed. We do not print the code on the site, so the list is the way to get it.
Can I pay in instalments?
Yes. Klarna Pay in 3 is at checkout: three equal payments, no interest and nothing extra to pay. Visa, Mastercard, American Express, PayPal, Apple Pay, Google Pay and Shop Pay are all there too. Payment is handled by Shopify Payments and we never see your card details.
Is it going to be a gift?
Tell us in the order notes at checkout and no prices or invoice go in the parcel. Sending it straight to them is fine: put their address as the delivery address and keep yours as the billing address.
Can I have a VAT invoice?
Yes. We are VAT registered and every price on the site already includes VAT. Reply to your order confirmation asking for one and it comes back the same working day. For a business or bulk order, email support@buymybricks.com before you buy and we will sort an itemised invoice.
Not the set you want?
Tell us the set number and we will look for a sealed one through the trade. If we find one at a sensible price you get an email with the link before it goes on the site. Ask us to find it.
Not answered here? Email support@buymybricks.com or ring 01904 900212. A person reads it, usually the same day.
More like this
Related sets
£442.99