21023Flatiron Building
- 2015released
- 471pieces
- Architecturetheme
Typical new & sealed
£94.43
from £74.95 · 20.0p/piece
Typical used & complete
£48.81
from £39.36 · 10.4p/piece
View on eBay →
Updated 3h ago · 18 listings found
Price history
eBay UK · median Buy It Now asking price
We started tracking this set on 18 Oct 2026. The chart fills in as we record prices each day.
18 listings
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LEGO Architecture Flatiron Building 21023 Landmark Set 471pcs 12+ Box Booklet UK
Used · not stated
⏱ 5d 16h · 0 bids tracey9732 · 100% · 2,516 feedback£29.64 incl. £2.94 postage 6.3p/piece Current bid -
LEGO Architecture Flatiron Building 21023 Landmark Set 471pcs 12+ Box Booklet UK
Used · not stated
ad535554 · 100% · 12 feedback£39.35 incl. £2.26 postage 8.4p/piece Not enough data -
Lego Architecture 21023 - Flatiron Building - Complete, Instructions UK
Used · complete
📘 Instructions marur_5387 · 100% · 5 feedback · ⚠ check carefully£39.36 incl. £2.26 postage 8.4p/piece 19% below typical -
LEGO Architecture 21023 Flatiron Building UK
Used · not stated
gr4yp1g3on · 100% · 7 feedback · ⚠ check carefully£44.56 incl. £2.26 postage 9.5p/piece Not enough data -
LEGO 21023 Architecture Flatiron Building New York Retired Set Complete With Box UK
Used · complete
📦 Box forgotten_projects_100 · 100% · 297 feedback£44.92 incl. £2.62 postage 9.5p/piece 8% below typical -
Lego Architecture 21023 - Flatiron Building - Complete, Instructions UK
Used · complete
📘 Instructions walltowallventure · 100% · 151 feedback£52.70 free postage 11.2p/piece 8% above typical -
LEGO Architecture Flatiron Building | 21023 | 100% Complete With Box UK
Used · complete
📦 Box seannaycollects · 100% · 1,040 feedback£56.08 incl. £3.38 postage 11.9p/piece 15% above typical -
Lego Architecture : Flatiron Building (21023) RETIRED Set Complete UK
Used · complete
⏱ 5d 21h · 0 bids 311tls · 100% · 870 feedback£66.47 incl. £3.38 postage 14.1p/piece Current bid -
LEGO Architecture: Flatiron Building (21023) New Parts inc Printed Nameplate UK
New & sealed
📦 Box 📘 Instructions leegobricks · 100% · 2,938 feedback£74.95 free postage 15.9p/piece 21% below typical -
LEGO Architecture 21023 Flatiron Building New York Retired New Sealed UK
New & sealed
📦 Box 📘 Instructions andyp9553 · 100% · 592 feedback£83.19 incl. £3.20 postage 17.7p/piece 12% below typical -
Lego Architecture 21023 Flatiron Building, New UK
New & sealed
📦 Box 📘 Instructions darrenan_20 · 100% · 191 feedback£87.28 incl. £3.38 postage 18.5p/piece 8% below typical -
Lego Architecture : Flatiron Building (21023) BRAND NEW, SEALED & RETIRED Set UK
New & sealed
📦 Box 📘 Instructions katkov-6406 · 100% · 45 feedback£92.48 incl. £3.38 postage 19.6p/piece About typical -
LEGO ARCHITECTURE: Flatiron Building, New York (21023) UK
New & sealed
📦 Box 📘 Instructions jamesloy78 · 99.7% · 1,199 feedback£92.99 incl. £3.89 postage 19.7p/piece About typical -
Lego Architecture 21023 Flatiron Building, New UK
New & sealed
📦 Box 📘 Instructions dansellstoys · 100% · 876 feedback£95.87 incl. £3.38 postage 20.4p/piece About typical -
LEGO Architecture Flatiron Building 21023 471pcs Booklet Included Boxed UK
New & sealed
📦 Box 📘 Instructions olicla-43 · 100% · 1 feedback · ⚠ check carefully£96.11 incl. £3.89 postage 20.4p/piece About typical -
Lego Architecture : Flatiron Building (21023) BRAND NEW, SEALED & RETIRED Set UK
New & sealed
📦 Box 📘 Instructions aclark_1 · 100% · 1,112 feedback£108 incl. £3.89 postage 22.9p/piece 14% above typical -
Flatiron Building - 21023 - Lego Architecture - New and Sealed UK
New & sealed
📦 Box 📘 Instructions coasteroo · 100% · 3,996 feedback£115 free postage 24.4p/piece 22% above typical -
LEGO Architecture 21023 Flatiron Building BNIB Sealed Retired Set UK
New & sealed
📦 Box 📘 Instructions c00t3 · 100% · 2,134 feedback£119 incl. £3.92 postage 25.3p/piece 26% above typical
Only seeing UK listings. Compare all 5 countries →
Before you buy 21023
- “Complete” should mean all 471 pieces. Ask the seller whether they checked against the inventory or just think it's complete.
- Sealed means factory seals intact. Ask for photos of the seals and box corners; box condition moves the price a lot on retired sets.
- Check the seller's feedback. For a retired set, stick to sellers with 98%+ feedback and a history of selling LEGO.
- Watch out for knock-offs. Brands like Lepin and Mould King copy popular sets. Look for the LEGO logo on the box and bricks.
- Pay through eBay. eBay's Money Back Guarantee covers items that don't match the description, but only if you pay through eBay.
Questions
How much is LEGO 21023 Flatiron Building worth?
Based on current eBay UK Buy It Now listings, a new sealed set typically costs £94.43 and a complete used set about £48.81, including postage. These are asking prices, so a set can sell for less.
How many pieces are in LEGO 21023?
Flatiron Building has 471 pieces. It was released in 2015.
What is the price per piece of 21023?
At the typical sealed price of £94.43 it works out at 20.0p per piece.
