Home Environment (9978-1) is a Duplo and Explore LEGO set released in 1991 with 77 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Duplo and Explore sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 36 unique part types.
- → Browse the full parts inventory
- → Verify loose bricks with our free part scanner
- → Check market value for parts and minifigs
Buying checklist
Quick context before you buy this set used or verify a marketplace listing.
-
Release year
1991 (35 years ago — may be retired)
-
Catalog scale
77 parts listed · 36 inventory lines tracked
-
Minifigures
No minifigs in inventory (brick-only or Technic set)
-
Build manual
No digital manual in our catalog — check the box tab or LEGO.com
-
Gray era
Pre-2004 set — may use old light/dark gray instead of bluish gray
-
Shipping weight (est.)
~533 g for parts inventory (excludes box/minifig packaging)
-
Before you buy used
Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing
Related sets in this theme
Market value
No estimate on BrickID yet
We don't pull live prices from marketplaces automatically — that requires paid seller API access. Check live listings below, or be the first to share a price you paid or saw.
Check live listings →Share a price you paid or saw
Help other collectors — we aggregate anonymous reports on this page.
Parts in this set
36 parts · updating…
-
Duplo Bathroom Sink4892 · ×1 · White -
Duplo Bathtub4893 · ×1 · White -
Duplo Bed 3 x 5 x 1 2/34895 · ×2 · Yellow -
Duplo Brick 1 x 2 x 2 with 4 Eggs Print4066pr0052 · ×1 · Red -
Duplo Brick 1 x 2 x 2 with Carton and Bottle Print4066pr0138 · ×1 · Red -
Duplo Brick 1 x 2 x 2 with Sausages Print4066pr0189 · ×1 · Blue -
Duplo Brick 1 x 2 x 2 with Three Books Print, ABC and 1234066pr0118 · ×2 · Yellow -
Duplo Brick 1 x 2 x 2 with Two Cheeses Print4066pr0029 · ×1 · Green -
Duplo Brick 2 x 43011 · ×2 · Yellow -
Duplo Cabinet 2 x 2 x 1.54890 · ×10 · Red -
Duplo Cabinet Refrigerator4914 · ×2 · Blue -
Duplo Chair 2 x 2 x 2 with One Stud4839 · ×4 · Yellow -
Duplo Chair with 1 Stud4885 · ×4 · Red -
Duplo Cone 2 x 2 x 1dupupn0009 · ×2 · Red -
Duplo Cone 2 x 2 x 1dupupn0009 · ×2 · Yellow -
Duplo Couch / Sofa 2 x 6, with Two Studs4888 · ×1 · Red -
Duplo Door, Refrigerator4915 · ×2 · White -
Duplo Drawer 2 x 2 with Pull Handle4891 · ×4 · Yellow -
Duplo Drawer 2 x 2 with Pull Handle4891 · ×6 · White -
Duplo Figure, Early, Hair Bob Light Gray, Red Legs, Red Necklace, Gray Hair, Glasses Print74298pr0061 · ×1 · Yellow -
Duplo Figure, Early, Hair Bob Yellow, Blue Legs, Yellow Scarf with Red Dots Print74298pr0026 · ×1 · Red -
Duplo Figure, Early, with Short Parted Hair Black, Blue Legs, Yellow Tie, Blue Arms, White Eyes Print74511pr0010 · ×1 · Black -
Duplo Figure, Early, with Short Parted Hair Light Gray, Black Legs, Light Lime Bow Tie, Glasses Print74511pr0025 · ×1 · Blue -
Duplo Mirror with Silver Print4909pr0002 · ×2 · White -
Duplo Oven Range with 2 Top Studs and Doors Print4907pr0002 · ×1 · Blue -
![Duplo Plate 2 x 4 x 1/3 Half Circle with 2 Studs [Thin]](https://cdn.rebrickable.com/media/parts/ldraw/4/3808.png)
Duplo Plate 2 x 4 x 1/3 Half Circle with 2 Studs [Thin]3808 · ×4 · Red -
![Duplo Plate 2 x 4 x 1/3 with 4 Center Studs [Thin]](https://cdn.rebrickable.com/media/parts/ldraw/4/4121.png)
Duplo Plate 2 x 4 x 1/3 with 4 Center Studs [Thin]4121 · ×2 · Red -
Duplo Saucepan, Round Bottom, Smooth Handle4905 · ×2 · White -
Duplo Sign Post Short4375 · ×2 · Red -
Duplo Sign Post Short4375 · ×3 · Yellow -
Duplo Sink with Cabinet Doors Print4906pr0002 · ×1 · Blue -
Duplo Teapot / Coffeepot, Round Base4904 · ×2 · White -
Duplo Television 1 x 2.5 x 1.3 with Rainbow and Stars Print4916pr0002 · ×1 · Red -
Duplo Toilet (without Rim)4911 · ×1 · White -
Duplo Toilet Rim4912 · ×1 · Yellow -
Duplo, Sleeping Bag / Baby Pouch with Red, Blue, Yellow and Lime Flowers Print45896pr0002 · ×2 · White