LEGO Fallingwater (21005) Value
What does the LEGO Fallingwater (set 21005) actually sell for? Below are real eBay completed-sale medians, split by condition, with the most recent sold listings. That’s up 261% on its $100 retail price.
LEGO 21005 Fallingwater — what it sells for
⤢ enlarge+261%vs $100 RRP — sealed median $361 (3.6× retail)
Sealed
$361
range $273–$402
You’d net $314 after eBay fees
6 sold
New, factory-sealed (MISB).
Used — complete
$147
range $125–$162
You’d net $128 after eBay fees
9 sold
Opened/built, all pieces.
Incomplete
$99
range $97–$112
You’d net $86 after eBay fees
5 sold
Missing pieces, box or instructions.
Recent real sold listings
Recent sold listings
| Listing | Condition | Sold | Price |
|---|---|---|---|
| LEGO ARCHITECTURE: Fallingwater 21005 READ DESCRIPTION | Incomplete | 2026-06-04 | $53 |
| LEGO ARCHITECTURE: Fallingwater (21005) New Open Box, Possibly Missing Few Parts | Incomplete | 2026-06-04 | $268 |
| LEGO Architecture Fallingwater 21005 Frank Lloyd Wright 811pc Retired | Used — complete | 2026-06-01 | $125 |
| LEGO Architecture 21005 Fallingwater Assembled No box manual Frank Lloyd Wright | Incomplete | 2026-05-27 | $99 |
| LEGO ARCHITECTURE: Falling Water (21005) 99% complete. No box or manual. | Incomplete | 2026-05-27 | $97 |
| LEGO ARCHITECTURE: Fallingwater (21005) | Used — complete | 2026-05-26 | $162 |
| Assembled LEGO ARCHITECTURE: Fallingwater (21005) With Original Manual | Used — complete | 2026-05-25 | $110 |
| LEGO Architecture Custom FALLINGWATER 21005 | Used — complete | 2026-05-24 | $94 |
| LEGO 21005 Architecture Series by Frank Lloyd Wright Fallingwater Brand New Seal | Sealed | 2026-05-24 | $380 |
| LEGO Architecture Fallingwater (21005) – Complete – Instructions – Disassembled | Used — complete | 2026-05-23 | $147 |
How to read these numbers
Each figure above is the median of real eBay completed sales for the Fallingwater (set 21005) in that condition, including shipping. “Net” subtracts eBay’s ~13% fee — what you’d actually keep as the seller. Notice the spread between conditions: sealed around $361, used — complete around $147, incomplete around $99.
Prices move, so check the recent listings and run a fresh lookup before you buy or sell. For context, see the most valuable sets and other retired sets.
Frequently asked questions
How much is LEGO 21005 worth?
Based on recent eBay sold listings, the Fallingwater sells for a median of about $361 sealed, less in lower conditions. See the full condition breakdown above.
Are these asking prices or actual sales?
Actual completed (sold) eBay sales — not asking prices. The recent-listings table shows the individual sales behind the medians.
Is the Fallingwater retired?
Yes — set 21005 is retired, which is typically why used and sealed prices sit above the original RRP.