Set Facts
- The Harbormaster's Office includes a detailed interior with a control desk equipped with maps, radar, sonar, a CB radio, and a loudspeaker, as well as a cozy rest area with a wood-burning stove and safety equipment.
- The structure features a loft bedroom complete with a ship-in-a-bottle and model lighthouse, while the main dock offers amenities like a gas pump, fishing rods, life rings, and signage for visiting seafarers.
- The dock's underside reveals hidden sea life, including fish, crabs, coral, and plants, and the office is modular, allowing it to be separated from the dock and its roof sections removed for full access.
- Pre-order was available October 8th 2024 with shipping in March 2025.
Regional Retail Prices (LEGO.com/Store)
Harbormaster's Office Reviews
“The Harbormaster’s Office set is a beautifully designed homage to the key operations of a bustling harbor. This compact yet detailed set captures the essence of harbor life, featuring modern equipment essential for maritime regulation, safety, and efficient boating traffic... More management. The inclusion of various charming details, such as a fueling station for small vessels and intricate exterior elements like the dock, adds authenticity and charm to the scene.”
BrickEconomy Member Review
“The Harbormaster’s Office from the BrickLink Designer Program showcases the charm and personality that come from minimal interference with fan designs. Rich Herbert’s creation blends seamlessly with existing LEGO nautical sets like the Old Fishing Store and Motorized Lighthouse, while also delivering the intricate detail found in modular buildings. Though some parts may feel delicate, the set's unique design and vibrant color scheme make it stand out.”
Subtheme Analysis
Annual growth
+22.84% (this set +24.08%)
This set's annual growth (CAGR) vs. subtheme
Community Stats
Harbormaster's Office currently ranks #2 out of the top most owned sets in BrickLink Designer Program Series 3.
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 $437.
Summary
BrickLink Designer Program Series 3 Harbormaster's Office set 910040 was released on October 8, 2024, retailing for $200, it has since been retired. New, unopened sets are valued at $284, used ones can be found for $235.
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Welcome to the Harbormaster’s Office! An important part of any harbor or port, the Harbormaster maintains safe and orderly boating traffic. Although compact, this office includes all the modern equipment needed to enforce maritime regulations. In addition, all small vessels are welcome to visit and fuel up before heading out.
The Features
Full detailed and featured Harbormaster’s Office including control desk, rest area, storage, and a loft bedroom. The Harbormaster’s desk contains maps, radar, sonar as well as access to a CB radio and loudspeaker to communicate with the boaters in the harbor.
On the main floor, you’ll find a cozy chair and wood-burning stove along with additional safety equipment. And when the nights get long, the Harbormaster can head up to the loft for a quick nap or to work on his models, including a small-scale lighthouse and ship-in-a-bottle.
The office sits comfortably on a large dock, complete with gas pump, life rings, fishing rods, compressed...
Description provided by LEGO©