LEGO Ideas 21347 Red London Telephone Box Review

The LEGO Ideas 21347 Red London Telephone Box is a 1,460-piece display of Britain's most recognizable street furniture: Giles Gilbert Scott's K2 kiosk, the red booth that hit London in the 1920s. It was Ideas set #55, based on a fan design by John Cramp (Bricked1980) and finished by LEGO designer Marina Stampoli, and it landed in February 2024 to mark the K2's 100th year. Official price was $114.99 / £99.99 / €114.99.

LEGO retired it at the end of 2025, so you will not find it new on LEGO.com anymore. Sealed copies are on the secondary market — see the 21347 listings on eBay if you want one.

The colors and design are fun, and the interior of the booth is the part that stuck with us. This is a shelf piece, not a playset: no minifigures, a working door, a light brick in the roof, and a little London pavement around it.

What you get in the box

A tall red kiosk on a cobbled pavement, a black lamp post with hanging flower baskets, a short stretch of gold-tipped railing, and a street sign that reads BUILDMORE ROAD SC1, City of Brickton. Inside the booth you pick one of two phone eras, and a light brick in the roof lights the whole thing when you press the crown.

Here's the set at a glance:

• Set number: 21347
• Theme: LEGO Ideas (set #55)
• Pieces: 1,460
• Price: $114.99 / £99.99 / €114.99 (retired; secondary market only)
• Age: 18+
• Minifigures: none
• Stickers: yes — a 16-sticker sheet for the interior posters, phone face, and street sign
• Printed parts: TELEPHONE signs and the crown emblem
• Dimensions: over 31 cm (12 in.) high, 19 cm (7.5 in.) wide, 15 cm (6 in.) deep
• Release: February 1, 2024 (Insiders) / February 3, 2024 (general); retired December 31, 2025
• Fan designer: John Cramp (Bricked1980)
• LEGO designer: Marina Stampoli
• Features: roof light brick, opening door, vintage rotary or 1990s payphone interior, lamp post, railing, smartphone stand on the base

The back of the box is useful: it spells out the two interior builds and shows the light brick in the ceiling. The instruction booklet is the usual Ideas package — build steps plus the fan-designer interview — and it still has LEGO's paper-bag pitch and Builder app pages in the front.

Most of the decoration is on that sticker sheet. TELEPHONE across the top of the kiosk is printed, which is the right call — those signs sit on every face and you would feel a sticker there. The posters, keypad, and street sign are stickers, and they do a lot of the personality work inside the booth.

Every part in this set228 different parts · 1,460 piecesShow allCollapse

The build

You start on the pavement and work up. The cobbles are a mix of gray and tan tiles, with a low wall, the railing, the lamp post, and those hanging baskets. The lamp post is a nice extra: black, a trans-orange "bulb," gold arms, and two little flower baskets. The railing uses bars and gold-tipped spikes, and it reads as London ironwork from a couple of feet away.

The kiosk itself is a lot of red. The window grid is the repetitive stretch — rows of trans-clear panes in red frames, on all four sides — but that grid is the whole K2 look, so there is no shortcut. SNOT tiling keeps the pillars smooth, with a line of round studs down the corners for a bit of texture.

The door opens on hinges, which is the one moving part you will actually use. The roof is a separate assembly: the light brick sits in the ceiling, and pressing the crown turns it on. Printed TELEPHONE bricks wrap the top, with the small crown above the door.

Fully built it stands about a foot tall, which is bigger on a desk than the box suggests. It looks good from every side, which is the point of a kiosk that is all windows.

The interior

This is the fun part of the box. LEGO gives you parts for two phones — a vintage rotary setup with the old A/B coin buttons, or a 1990s-style payphone — and you pick one. They share pieces, so you are not swapping them in and out; you build one and bag the rest.

We went with the vintage interior. The back wall is a black panel of posters: PLEASE BE BRIEF, a Hats! ad, Jazz Live (a nod to the Jazz Quartet / Jazz Club sets), a New Model T.C. typewriter, and Tea Time. The handset is a separate black piece (ours is on the floor, lol). The floor is cream tiles with a few black studs around the base of the unit.

The leftover stickers on the sheet are the other era: a LEGOLAND poster, a Big City Sightseeing bus, a YOUR IDEAS HERE ad, and a modern keypad. John Cramp also snuck family references into some of the numbers on the posters. Family-friendly flyers, which is not how real K2 interiors aged.

The lights

Press the roof and a warm yellow glow fills the booth. The light brick is in the ceiling, partly visible as a trans-yellow element, and because the kiosk is pretty tightly built the light mostly comes out through the windows and a sliver at the door hinge. It does a lot for the interior posters. The TELEPHONE signs stay dark — there is no way to light printed bricks from behind without swapping them for something trans-clear.

The set also markets the base as a smartphone stand: two bollards between the lamp post and the railing are supposed to hold a phone. You can do it, it is a bit awkward, and it hides the street sign. Fine as a gimmick, skippable as a feature.

Lighting options

The roof light brick is the only lighting in the box. That is enough to make the interior glow, but the lamp post, the TELEPHONE signs, and the pavement stay dark.

Two clip-in LED kits made for 21347 are worth a look:

• Lightailing LED lighting kit for LEGO 21347
• Vonado LED lighting kit for LEGO 21347

Both install without modifying the model — they typically add lights in the lamp, extra interior glow, and sometimes the signs. The wiring tucks behind the pavement tiles and the back panels of the kiosk.

Is the LEGO Red London Telephone Box worth it?

If you like London kitsch and adult display sets, yes — with the caveat that you are buying it used or sealed-on-eBay, not at $114.99 from LEGO. The colors and design are fun, the interior of the booth is the reason to build it, and the light brick is a small feature that earns its keep once the door is open. A foot-tall red kiosk on a cobbled base is an easy thing to put on a desk and leave there.

The catches are the ones you'd expect from a retired Ideas display. No minifigures. A sticker sheet for the posters. The window grid is a lot of the same step. The phone-stand trick is skippable. And because it is gone from LEGO.com, you are paying whatever the secondary market wants that week — sealed copies in our eBay 21347 collection have been landing anywhere from about $80 to a bit over $110.

For more British brick architecture, see our LEGO 10350 Tudor Corner review. If you are collecting Ideas, we also looked at the LEGO Ideas 40912 Sea Serpent and the LEGO Ideas 21370 E.T. the Extra-Terrestrial, which has a light brick of its own.