BlockTalk Find Your Set

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LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Farnsworth House

Checking

21009 Farnsworth House

546 pieces in 50 part and color combinations.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

White 414 pieces

  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×46
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×2
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 Also in Trans-Clear ×12
  • Plate 1 x 10 White Part 4477 Element 6552113 or 6550148 ×5
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 Also in Trans-Clear ×6
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×2
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×4
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×4
  • Plate 2 x 12 White Part 2445 Element 6552091 or 244501 ×4
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×3
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×6
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×3
  • Plate 4 x 8 White Part 3035 Element 6609533 or 303501 ×8
  • Plate 6 x 8 White Part 3036 Element 303651 or 303601 ×5
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) White Part 3794b ×5
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) White Part 87580 Element 6550157 or 6126046 ×2
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 4 spares in the box ×238
  • Tile 1 x 4 with Groove White Part 2431 Element 6548255 or 243101 ×6
  • Tile 1 x 8 with "Farnsworth House" Print White Part 4162pr0007 Element 4642923 ×1
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×52

Tan 45 pieces

  • Brick 1 x 2 Tan Part 3004 Element 4109995 or 300405 ×1
  • Brick 1 x 3 Tan Part 3622 Element 4162465 or 4113920 ×5
  • Brick 1 x 6 Tan Part 3009 Element 4112982 or 300905 ×1
  • Panel 1 x 1 x 1 Corner Tan Part 6231 Element 4612603 or 4568287 ×5
  • Plate 1 x 2 Tan Part 3023 Element 4113917 or 302305 ×3
  • Plate 1 x 3 Tan Part 3623 Element 4121921 or 362305 ×6
  • Plate 1 x 4 Tan Part 3710 Element 4113233 or 371005 ×2
  • Plate 1 x 6 Tan Part 3666 Element 4124067 or 366605 ×3
  • Plate 2 x 6 Tan Part 3795 Element 4113993 or 379505 ×1
  • Tile 1 x 1 with Groove Tan Part 3070b Element 4125253 1 spare in the box ×7
  • Tile 1 x 2 with Groove Tan Part 3069b Element 4114026 ×8
  • Tile 1 x 4 with Groove Tan Part 2431 Element 4550324 or 4542398 ×2
  • Tile 1 x 6 with Groove Tan Part 6636 Element 4157277 or 4108151 ×1

Black 39 pieces

  • Plate 2 x 16 Black Part 4282 Element 428276 or 428226 ×5
  • Plate 2 x 4 Black Part 3020 Element 302026 ×2
  • Plate 2 x 6 Black Part 3795 Element 379526 ×4
  • Plate 2 x 8 Black Part 3034 Element 303426 ×12
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×6
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×10

Trans-Clear 25 pieces

  • Panel 1 x 4 x 3 [Side Supports / Hollow Studs] Trans-Clear Part 60581 Element 6514156 or 6344088 ×12
  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 Also in White ×6
  • Plate 1 x 2 Trans-Clear Part 3023 Element 6514001 or 6240204 Also in White ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×5

Dark Green 12 pieces

  • Plate 6 x 10 Dark Green Part 3033 Element 4549214 ×12

Dark Bluish Gray 4 pieces

  • Brick Special 1 x 1 with Stud on 1 Side Dark Bluish Gray Part 87087 Element 4558955 ×4

Reddish Brown 4 pieces

  • Tile 1 x 1 with Groove Reddish Brown Part 3070b Element 4211288 1 spare in the box ×1
  • Tile 1 x 2 with Groove Reddish Brown Part 3069b Element 4211151 ×3

Light Bluish Gray 3 pieces

  • Panel 1 x 2 x 1 [Square Corners] Light Bluish Gray Part 4865a Element 4211515 ×1
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×1
  • Tile 1 x 6 with Groove Light Bluish Gray Part 6636 Element 4211549 ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

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