The Top 10 Retired LEGO Sets You Can Still Build — Numbers 5 to 1

Welcome to the conclusion of our countdown of the best retired LEGO sets you can still build in 2026. If you missed numbers 10 to 6, you can read part one here.

Now for the top five — and a number one pick that we know will divide opinion. Let's get into it.

5. Bugatti Chiron (42083)

Retired: 2022 | Pieces: 3,599 | Theme: Technic

The Bugatti Chiron is simply one of the greatest LEGO Technic sets ever made. Developed in close collaboration with Bugatti, it features a working W16 engine with moving pistons, a functioning gearbox, active rear spoiler and even a tiny speed key hidden under the bonnet.

At 3,599 pieces it's a substantial build — but the level of engineering detail throughout is extraordinary. Every mechanism works exactly as you'd expect it to, and the finished model is jaw-droppingly beautiful. This is the set that convinced a generation of adults that LEGO Technic was genuinely serious.

Since retiring in 2022, prices have climbed steadily. If you've always wanted to build the Chiron, renting it is by far the most sensible way to experience it.

4. Tower Bridge (10214)

Retired: 2018 | Pieces: 4,287 | Theme: Creator Expert

Tower Bridge is a LEGO legend. Released in 2010 and retired in 2018, it's been out of production for eight years — and it remains one of the most impressive architectural sets ever made.

At 4,287 pieces it's one of the larger sets in our catalogue, and the build process is deeply satisfying. The level of architectural detail is remarkable — from the Victorian Gothic towers to the working bascule bridge that can be raised and lowered. The finished model is over 120cm wide and makes a genuinely spectacular display piece.

For fans of architecture, engineering or London landmarks, Tower Bridge is an absolute must-build.

3. Downtown Diner (10260)

Retired: 2020 | Pieces: 2,480 | Theme: Creator Expert Modular

The Downtown Diner is one of the most beloved modular buildings in LEGO history. Released in 2018 and retired in 2020, it captures the spirit of a classic American diner in extraordinary detail — complete with a fully furnished interior across three floors, a working jukebox, kitchen, rooftop terrace and dozens of tiny details that reward close inspection.

Modular buildings are designed to be combined with other modulars to create a LEGO city street, but the Downtown Diner is spectacular enough to stand completely on its own. This is the kind of set you build slowly over several evenings, savouring every detail.

Secondary market prices for this one have risen significantly since retirement — making it one of the better rental value propositions in our catalogue.

2. Porsche 911 GT3 RS (42056)

Retired: 2018 | Pieces: 2,704 | Theme: Technic

The Porsche 911 GT3 RS is the set that changed everything for LEGO Technic. Released in 2016 in partnership with Porsche, it was the first Technic set to feature a fully detailed interior with real bucket seats, a working steering wheel and dashboard — and a trunk that opens to reveal a detailed flat-six engine.

The finished model is stunning — finished in the iconic orange of the real GT3 RS, with the correct proportions and profile of the actual car. Retired in 2018 after just two years, it's been one of the most sought-after sets on the second hand market ever since.

This is as close as LEGO has ever come to producing a true scale model, and building it is an experience unlike almost any other set. Deserving of its legendary status.

1. Motorized Walking AT-AT (10178)

Retired: 2010 | Pieces: 1,137 | Theme: Star Wars

We know. You expected the Porsche at number one. But hear us out.

The Motorized Walking AT-AT (10178) retired in 2010 — over 15 years ago — making it the most vintage set in our top 5 by some distance but it's the playability of the set which is why it's number one.

What makes this set truly special is what no other set on this list can claim — it actually walks and it amazes me every time it does!