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910042 LEGO Lost City thumbnail image

910042 LEGO Lost City
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910042 LEGO Lost City
  • Lost City thumbnail
  • Lost City thumbnail
  • Lost City thumbnail
  • Lost City thumbnail
  • Lost City thumbnail
  • Lost City thumbnail

LEGO 910042 Lost City is a BrickLink set valued at $380 for new and sealed sets, up 31% from an original retail price of $289.99. The set retired in October 2024 with annual appreciation averaging 17.63% since. On the used market, values range from $309 to $501 based on condition. Secondary market prices for new and sealed sets typically fall between $369 and $408.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Lost City since October 2024. Very high accuracy
LEGO 910042 Lost City is a BrickLink Designer Program Series 3 set released in 2024, containing 3332 pieces and 3 minifigures. Designed by Thomas Lajon (letsgolegobrick), it depicts an overgrown ancient city with twin towers, a stone bridge, a rotunda, a throne room with a water mirror, and the king’s tomb. The build emphasizes ruined architecture interwoven with vegetation and detailed interior spaces. Pre-order opened on October 8, 2024, with shipping scheduled for March 2025.

A new and sealed Lost City is currently valued at around $380, with annual growth of about 11.8% that is expected to level off to around 8.4% in the coming year. The average used price is $315 for those in good overall condition. New and sealed listings currently range from $380 to $498. Based on current trends, this set could be valued near $397 within the next year.
All regions

For Sale (New/Sealed)

 (US) *** Best US listing for Lost City ***
BrickEconomy Choice
$360.00
(US) BrickLink store Penny_weird $311.38
-18.1%
(US) BrickLink store DDS Bricks $350.10
-7.9%
(US) Brand new sealed in box $359.99
-5.3%
(US) BRICKLINK SET 910042 LOST CITY / New In Box Factory Sealed $360.00
-5.3%
(US) 910042 Lost City Limited Edition Brand New Sealed $370.00
-2.6%
(US) BrickLink Designer Program Lost City 910042 SEALED $375.00
-1.3%
(US) 910042 Lost City Limited Edition Brand New Sealed $379.95
0.0%
(US) BrickLink Designer Program Lost City (910042) NEW SEALED SOLD OUT IN HAND $379.99
0.0%
(US) BrickLink Designer Program Lost City (910042) $379.99
0.0%
(US) Bricklink Designer Program series 3 lost city 910042 new sealed set. $380.00
(US) 910042 Lost City BDP Bricklink Designer Program New Sealed $380.00
(US) 910042 BRICKLINK DESIGNER PROGRAM LOST CITY BRAND NEW SEALED $380.00
(US) Brand new in sealed box $380.00
Show 41 more listings

Sales Distribution (Last 90 Days)

This chart shows the distribution of sales for the past three months of new/sealed 910042 Lost City.

Sets in BrickLink / Designer Program Series 3

910043 Forest Stronghold

Theme / Subtheme BrickLink / Designer Program Series 3
Year 2024
Pieces / Minifigs 3,208 / 13
Availability Retired
910043 LEGO Forest Stronghold
Retail $299.99
Value $447.20
Growth  +49.1%
Annual growth 25.4%

910039 The Art of Chocolate

Theme / Subtheme BrickLink / Designer Program Series 3
Year 2024
Pieces / Minifigs 2,574 / 12
Availability Retired
910039 LEGO The Art of Chocolate
Retail $229.99
Value $304.96
Growth  +32.6%
Annual growth 18.0%

910040 Harbormaster's Office

Theme / Subtheme BrickLink / Designer Program Series 3
Year 2024
Pieces / Minifigs 2,395 / 6
Availability Retired
910040 LEGO Harbormaster's Office
Retail $199.99
Value $292.88
Growth  +46.4%
Annual growth 25.1%

910041 Camping Adventure

Theme / Subtheme BrickLink / Designer Program Series 3
Year 2024
Pieces / Minifigs 643 / 2
Availability Retired
910041 LEGO Camping Adventure
Retail $54.99
Value $94.99
Growth  +72.7%
Annual growth 24.2%

BrickLink Designer Program Series 2 Sets

910034 Brick Cross Train Station

Theme / Subtheme BrickLink / Designer Program Series 2
Year 2024
Pieces / Minifigs 3,050 / 8
Availability Retired
910034 LEGO Brick Cross Train Station
Retail $279.99
Value $363.10
Growth  +29.7%
Annual growth 13.1%

910038 Ominous Isle

Theme / Subtheme BrickLink / Designer Program Series 2
Year 2024
Pieces / Minifigs 2,809 / 5
Availability Retired
910038 LEGO Ominous Isle
Retail $239.99
Value $300.00
Growth  +25.0%
Annual growth 11.8%

910035 Logging Railway

Theme / Subtheme BrickLink / Designer Program Series 2
Year 2024
Pieces / Minifigs 2,731 / 3
Availability Retired
910035 LEGO Logging Railway
Retail $209.99
Value $286.92
Growth  +36.6%
Annual growth 16.9%

910036 Ocean House

Theme / Subtheme BrickLink / Designer Program Series 2
Year 2024
Pieces / Minifigs 2,207 / 4
Availability Retired
910036 LEGO Ocean House
Retail $199.99
Value $249.99
Growth  +25.0%
Annual growth 11.6%

910037 Mushroom House

Theme / Subtheme BrickLink / Designer Program Series 2
Year 2024
Pieces / Minifigs 964 / 3
Availability Retired
910037 LEGO Mushroom House
Retail $89.99
Value $171.10
Growth  +90.1%
Annual growth 32.4%

My Collection

Lost City Reviews

21 reviews
4.8
Collectors
Investors
BrickEconomy Member Review
“This model combines intricate architectural details with overgrown vegetation, bringing the mystery of a long-lost city to life. With its impressive 3,506 pieces, builders can explore hidden corners like the majestic twin towers, the crumbling ruins, the stone bridge, and even the king’s tomb. The water mirror and throne room add a touch of regal mystery, perfect for creating adventures steeped in lore.”
The Brothers Brick
“I was shocked by the final size of the Lost City. It’s far larger than I expected from the pictures on the BrickLink website, and quite dense as well. A lot of that density comes from an overwhelming number of smaller parts. There’s no quantity of large plates here except... More for those used in the base construction, with so many more intricate pieces utilized to properly convey the ruin of the city.”
Full review at www.brothers-brick.com

About BrickLink Designer Program Series 3

The BrickLink Designer Program Series 3 is a fan-driven initiative where LEGO enthusiasts submit custom designs for potential production as official LEGO sets. The program involves a voting process to select finalists, followed by a crowdfunding phase where supporters can pre-order their favorite designs. Sets that reach a minimum of 3,000 pre-orders will be produced, with a cap of 30,000 units per set. The five selected sets for Series 3 are Harbormaster’s Office, The Art of Chocolate, Forest Stronghold, Camping Adventure and Lost City. Pre-ordering started on October 8th, 2024 with production and shipment in March 2025.

Designer Program Series 3 was introduced in 2024 and currently consists of 5 sets. As of today, 910043 Forest Stronghold is the most valuable Designer Program Series 3 set with an estimated new/factory sealed value of $447.
Summary
BrickLink Designer Program Series 3 Lost City set 910042 was released on October 8, 2024, retailing for $290, it has since been retired. New, unopened sets are valued at $380, used ones can be found for $315.
Read more
Ladies and Gentlemen,

Please consider the objectives of the mission we have set ourselves: to discover and pierce the mystery of this lost city. Is it El Dorado? Is it Z? Is it Atlantis? We will know it only if you grant us your support to carry out our expedition.

Prepare yourself for adventure with this set of a Lost City mixing ancient architecture and ruins covered by vegetation for the pleasure of the eye of the collectors and the pleasure of the imagination of the players.

You can discover different parts of the city such as: its ruins, its two towers, closing treasures, the stone bridge, the rotunda, the throne room and its water mirror, the king's tomb...

But beware! Adventurers never came back, probably lost between these 3506 bricks...

I hope you will enjoy this model. It was a real wish to build a playable set in the world of adventurers.
Description provided by LEGO©