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★★★★★ Rated 4.9/5 · from 2,690 Verified Reviews
Stranger Things: The Upside Down (75810)
Two houses in one — 2,287 pieces, and you flip it to choose your world.
One of the strangest things ever engineered in brick: the Byers house and its mirror-image Upside Down twin, built back to back and locked together through ball joints hidden inside the trees. The whole model balances so you can turn it over and decide which world faces up. Joyce’s living room, the dining room and Will’s bedroom above — the same rooms below in dark blue, moss and creeping vines. The alphabet wall lights up. Lego retired it in 2022 and sealed boxes now trade between $400 and $700. The same build, spec for spec, without the badge.
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12 customers have this in their cart
Set OnlyThe Upside Down
2,287 pieces
You Save
$187.48$499.99
Most Popular
Complete The BundleSet + LED Light Kit
2,287 pieces + lighting
You Save
$224.98$549.99
+ LED LIGHT KIT — light it up on the shelf$49.99 value — bundled for $30.99
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Keep loving Lego. Always.
Nobody here will tell you their bricks aren't excellent — we're builders too, and the shelves behind us prove it. The brick was never the problem. The price was. The brick patent expired in the 1970s: at brand price you're paying for the licence, the retail markup and the marketing — not the plastic. We make the same brick, to the same tolerance, and skip the badge.
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The 30-Day "Ship It Back" Guarantee
Build it, display it, love it — or send it back within 30 days for every dollar, no questions asked. The risk is entirely ours.
LEGO-COMPATIBLE CLUTCHHAND-CHECKED PIECE COUNTNUMBERED BAGSTIGHT-TOLERANCE BRICKSSHIPS FROM US WAREHOUSE30-DAY GUARANTEE5,000+ BUILDERSLEGO-COMPATIBLE CLUTCHHAND-CHECKED PIECE COUNTNUMBERED BAGSTIGHT-TOLERANCE BRICKSSHIPS FROM US WAREHOUSE30-DAY GUARANTEE5,000+ BUILDERS
Why the price looks too good
Same Bricks. Same Build. A Fraction of the Price.
Nobody explains this on the shelf tag — so here it is, in plain words.
1
The brick patent expired in the 1970s. Anyone is allowed to make the brick, to the exact same dimensions. That part isn't a secret — it's law.
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At $400–$700 for a sealed original, you’re paying for everything except the bricks. The licence, the brand, the retail markup, the marketing. The plastic is the cheapest thing in the box.
3
We make the same brick, to the same tolerance — and skip the badge. Tight clutch, crisp color, fully compatible with every brick you already own.
4
Then a person on our team opens, counts and re-seals every box. Numbered bags, a clear illustrated guide, and a hand-checked piece count before it ever ships.
Why the bargain-bin alternatives failed you: they cut the plastic, not the badge. Soft clutch, mystery bags, missing pieces, no one to call. We cut the badge and kept the brick — that's the whole difference, and it's why the trust checklist below exists.
BrickSmart
LEGO® original
Bargain alternatives
The full 2,287-piece build
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Hand-checked piece count
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Numbered bags & clear guide
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Tight, LEGO-compatible clutch
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5–7 business day shipping from a US warehouse
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30-day money-back guarantee
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Price
$187.48
$199.99 new · $400–$700 retired
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What Builders Report, Hour by Hour
Screen-free hours, honestly counted:
Hour 1
Numbered bags out, zero sorting — you build the real-world house first, room by room, and it looks finished long before it is.
Hour 6
Then you build the whole thing again, upside down and in the wrong colours. Doing the same rooms twice sounds tedious and isn’t — watching Joyce’s living room turn into the Upside Down version is the best part of the set.
Hour 11
The two halves lock together through the trees, and you flip it for the first time. Two houses, one model — finished, displayed, yours.
*Based on customer accounts. Build times vary with pace and coffee supply.
Built Around Every Fear You Have About Alternatives
The BrickSmart Promise
HAND-CHECKED COUNT
NUMBERED BAGS
LEGO- COMPATIBLE
US WAREHOUSE
The people behind the boxes
Checked by hand before it ships
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Every set that leaves our warehouse gets opened, counted and re-sealed by a person on my team. I started BrickSmart after one too many $80 boxes with loose bricks and missing pieces — so if a set isn't good enough for my own shelf, it doesn't go in the box.
Alex Browning
Founder & Head of Design, BrickSmart
✓ Hand-checks sets every week
The spec sheet
Counted. Measured. Verified.
Every published spec of the original 75810, matched — the locking mechanism, both interiors, the light brick and all 8 figures. Verified before your box ships.2,287 pieces · numbered, organized bagsTwo mirror-image houses built back to back and locked with ball joints and bracket-reinforced columns disguised as treesBalanced so the whole model can be flipped to display either world facing upReal-world Byers house: Joyce’s living room with the floral couch, the dining room and Will’s bedroomA working light-up alphabet wall brickThe bear trap and Will’s “Will the Wise” wizard gearUpside Down house: every room mirrored in dark blues, moss and decaying vine structuresBrick-built Hawkins Police SUV8 minifigures — Eleven with her Eggo waffle, Mike, Dustin, Lucas, Will, Joyce, Chief Hopper and the Demogorgon with its custom-molded opening petal head
Builders, in their own words
Excellent
Rated 4.9 / 5 · Based on 2,690 verified reviews
Trustpilot
Corey B. 🇺🇸
Stranger Things fan · ✓ Verified Buyer
3 days ago
★★★★★
Flipping it is the whole experience
It balances perfectly and the ball joints hold rock solid — no creaking, nothing shifts. I change which world faces up depending on my mood. Nothing else on my shelf does that.
Leah M. 🇺🇸
Bought as a gift · ✓ Verified Buyer
2 weeks ago
★★★★★
The alphabet wall actually lights up
He didn't believe me until he pressed it. Little details everywhere — the floral couch, the bear trap, Will's wizard hat. Missed this one when it retired so he was thrilled.
Andres F. 🇺🇸
Display builder · ✓ Verified Buyer
1 month ago
★★★★★
Building it twice is the point
You do every room, then do it again in the Upside Down palette. Sounds repetitive, isn't — it's fascinating seeing the same space go wrong. The engineering here is genuinely clever.
Nadia P. 🇺🇸
First big build · ✓ Verified Buyer
6 weeks ago
★★★★☆
Vines take a while to place
Everything else went smoothly — numbered bags, clear guide, about eleven hours. The decaying vines need patience to angle right. Worth it, it looks incredible.
Owen R. 🇺🇸
Collector · ✓ Verified Buyer
2 months ago
★★★★★
Demogorgon head opens properly
The petal head is a proper molded piece, not an approximation, and it opens cleanly. Colours across both houses are spot on — the Upside Down blues are exactly the right kind of murky.
Grant H. 🇺🇸
Returning builder · ✓ Verified Buyer
3 months ago
★★★★☆
Never paying $600 for a sealed box
Watched this one climb on the secondary market for years. Built this instead — tight clutch, nothing missing, and with the light kit the two halves glow completely differently. Delighted.
Frequently Asked Questions
No — and we say it plainly. BrickSmart is an independent brand. The brick patent expired in the 1970s, so we build our bricks to the same dimensions and the same tight tolerance, fully compatible with every brick you already own. What you're not paying for is the badge — that's the entire price difference.
Yes. Clutch power — how firmly bricks grip — is the whole game, and it's the first thing we test. Tight-tolerance molds, crisp color, and a finished model that stays rock-solid on the shelf for years. If any of that isn't true of your set, the 30-day guarantee applies, no questions asked.
This is the fear we built the company around. A person on our team opens, counts and re-seals every box before it ships — that's the hand-check. If anything is still short, we ship you the part or refund you in full. You will never be left mid-build with no one to call.
Most builders finish it in 9–14 relaxing, screen-free hours. You build the real-world house first and then its Upside Down twin, which makes the second half unexpectedly absorbing — you already know the rooms, so you notice everything that’s gone wrong with them.
2,287 pieces in numbered bags — both mirrored houses with their locking ball-joint columns, all the real-world interiors, the light-up alphabet wall, the bear trap and Will’s wizard gear, the full Upside Down build with its vines and moss, Hopper’s Hawkins Police SUV, all 8 figures including the Demogorgon, and a complete illustrated guide.
The two houses are built back to back and locked together with ball joints and reinforced columns hidden inside the tree structures. The finished model is balanced, so you simply turn it over and stand it on the other side — whichever world you want facing up. Nothing comes loose.
Lego retired the original in early 2022, and sealed boxes now trade for roughly $400 to $700 on the collector market against a $199.99 original shelf price. That’s exactly why we make it: the build itself — all 2,287 pieces of it — for $199.99, hand-checked and shipped from our US warehouse.
Our studs don’t carry a logo. Everything else — the 2,287 pieces, both houses, the locking mechanism, the light-up alphabet wall, the SUV and all 8 figures — is matched to the original’s published spec. If you're buying sealed boxes as investments, buy an original. If you're building the house for your shelf, this is the same build.
Every order gets 5–7 business day shipping from our US warehouse, with tracking. No four-week overseas wait, no customs surprises — the box is already in the country.
Our members’ club. It takes 25% off your order, and your first month is FREE — after that it’s $24.99/month, and you can cancel any time by emailing us. Members also get VIP-only sets, private sales and early access to new releases. It’s entirely optional: switch it off and you pay the normal price. Members also get exclusive VIP-only sets that never go on public sale, private discounts and sales all year, and early access to every new release.
30 days, every dollar back, no questions asked. Build it, display it, love it — or ship it back. The risk is entirely ours.
🛡️ Build it, display it, love it — or every dollar back.
BrickSmart® is an independent brand. Not affiliated with, endorsed by, or sponsored by the LEGO Group. LEGO® is a trademark of the LEGO Group. Star Wars and related properties are trademarks of their respective owners. Product names and set numbers are used for compatibility and comparison reference only.
