Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗

Architecture · SET 21051

Tokyo

Tokyo’s skyline alternates towers, contemporary architecture and traditional symbols.

Pieces: 547
Release year: 2020
Theme: Architecture
Set number: 21051
LEGO recommended age: 16+
LEGO retail price · Italy: 59.99 €

View on LEGO Italy Official building instructions

Retired from the LEGO Italy catalogue when checked on 23 October 2026. Availability can change. Check the store for the latest information.

Retail price reported by the LEGO source for the stated market. Check the store for current price and availability; this does not establish the launch price. LEGO ↗ · Reference checked on 23 October 2026

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Official English name verified at: LEGO English catalogue ↗ · Checked on 24 October 2026.

TIME TO BUILD

How long does it take to build Tokyo?

Individual build

A starting point for planning your build. Times for each experience level are editorial estimates, not measurements submitted by HowLongToBuild users.

Editorial model estimate · no verified measured building time

Beginner

≈ 3 h 45 minSuggested range2 h 15 min – 5 h 30 min

Intermediate

≈ 2 h 30 minSuggested range1 h 30 min – 3 h 45 min

Experienced

≈ 1 h 45 minSuggested range1 h – 2 h 45 min

Based on one person building the set for the first time, following the original instructions and using numbered bags where supplied. Includes normal piece-finding and minor adjustments; excludes long breaks, filming, dismantling and modifications. Sources may use different methods. This range is neither a statistical interval nor a limit: your build may take less or more time.

How we estimate times · sources and method

Different micro-builds and compact base connections. The three central durations are model-specific editorial assessments. Planning ranges extend approximately from 65% to 145%, rounded to quarter-hours; they are not measured experience-level averages or guaranteed limits.

Sources do not always specify the builder’s experience. The three experience bands are our editorial assessment, based on the complexity of the set and individual accounts where available.

LEGO Italy · Tokyo ↗
This source documents the model’s features and components, not a timed build. No sufficiently verifiable individual building-time report has been identified for this set.
LEGO building instructions · Tokyo ↗
Set-specific instructions checked against the set number, piece count and year. The duration is an editorial assessment based on piece count, construction type, mechanisms and detail.

Checked: 23 ottobre 2026 · Method v1.0 · Limited reports; not a statistical average.

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MAKE ROOM FOR YOUR NEXT BUILD

How much display space does it need?

Assembled-model dimensions are not yet documented for this set. Box dimensions cannot tell you how much display space it needs.

BEYOND THE BRICKS

Did you know?

The model, the history, the ideas

Inside the set

Two recognisable towers

Tokyo Tower and TOKYO SKYTREE accompany Mode Gakuen Cocoon Tower.

LEGO source

Shibuya too

The crossing, a pagoda and Chidorigafuchi Park complete the composition.

LEGO source

Beyond the set

The stories, places and inventions behind your build.

Three hundred and thirty-three metres

Completed in 1958, Tokyo Tower reaches 333 metres and was then the tallest self-supporting steel tower.

Read the full story

Completed in 1958 at 333 metres, Tokyo Tower was then the tallest freestanding steel tower. Maeda Hisakichi’s project combined broadcasting with a tourist observatory, using height both to reach across the Kantō Plain and to offer views that established a civic landmark.

Governo del Giappone

One tower for several signals

It aimed to consolidate television broadcasts previously sent from individual broadcasters’ separate towers.

Read the full story

When Japanese television broadcasting began in 1953, individual companies built separate towers. Expected growth encouraged a shared transmission structure. Tokyo Tower consequently represents coordination in mass communications as well as the ambition to create a higher viewpoint over the capital.

Governo del Giappone

Expanded stories updated on 29 October 2026

Written by HowLongToBuild · Sources are linked with each story · Checked on 23 October 2026. Historical facts and story details refer to the context described.

THE COMMUNITY’S EXPERIENCE

What was it like to build?

Three separate scores from 1 to 10. For difficulty, 1 means very easy and 10 means very difficult.

No approved ratings yet. Scores are never generated by this site or inferred from the recommended age.

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Building tips from the community

Specific steps, useful checks and sticking points. Contributions appear after moderation, in their original language. Do not upload instruction pages or personal contact details.

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SET THE MOOD

A soundtrack for your build

· Selected for the subject and atmosphere

Solo cello foregrounds musical structure without a full orchestra. We pair it with closely observed volumes and articulation as an intimate alternative to cinematic storytelling.

OUR PICK

Inspired By Bach: The Cello Suites

Yo-Yo Ma

Intimate and spacious

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