I Simulated My Dream House Floor Plan — 5ch Reacts: ‘The Simulation Police Are Here’

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A floor-plan simulation image for a self-designed dream house, posted to 5ch’s News VIP board, became a hot topic. Users well-versed in real-world home-building specifics chimed in one after another with pointers on everything from roofing material choices to bathroom placement and hallway width. At one point, someone even quipped, “The simulation police are here.”

1Anonymous2026/08/21(金) 18:02:26.981ID:ID:DlbUAy66r
What do you guys think of something like this?
5Anonymous2026/08/21(金) 18:04:01.253ID:T1DKIj3M0
Skip the single-slope (mono-pitch) roof.
Also wouldn't recommend metal roofing material.
6Anonymous2026/08/21(金) 18:04:45.045ID:DlbUAy66r
>>5
The exterior wall material's just a placeholder.
I'm leaning toward galvalume (galvanized steel siding), though.
Why's a mono-pitch roof a bad idea?
7Anonymous2026/08/21(金) 18:05:05.420ID:dnZoCZvr0
The simulation police are here.
8Anonymous2026/08/21(金) 18:05:18.202ID:DlbUAy66r
>>7
Sorry.
152Anonymous2026/08/21(金) 19:50:40.110ID:ViWDSNoB0
>>7
Sorry about mine too, I guess.
11Anonymous2026/08/21(金) 18:07:06.702ID:0P0Tsn5y0
Props for not slapping solar panels on it.
Those are the height of stupidity.
13Anonymous2026/08/21(金) 18:08:02.120ID:DlbUAy66r
>>11
Wasn't planning to add them, but honestly the simulator didn't even have that option to begin with, lol

>>12
That's a spot for a motorcycle.
The car goes outside the house, I guess.
12Anonymous2026/08/21(金) 18:07:21.659ID:hKOJYcmj0
Isn't putting the garage there a waste of space?
16Anonymous2026/08/21(金) 18:09:04.841ID:DegPSRbM0
Why's the furniture in the bottom right clipping through the wall?
17Anonymous2026/08/21(金) 18:10:00.619ID:VXaI/Paq0
Putting the bathroom dead center feels like such a waste of space, no? Also, I think having a window in the bathroom makes for a way more comfortable bath.
A windowless bathroom is a common layout in apartments, but since this is a single-story house, might as well take advantage of it.
20Anonymous2026/08/21(金) 18:10:51.469ID:DlbUAy66r
>>16
Don't sweat the small stuff, the controls are hard to use.

>>17
Yeah, a window in the bathroom would be nice.
That's good input, thanks.
32Anonymous2026/08/21(金) 18:14:17.700ID:DlbUAy66r
This is for someone living alone.
35Anonymous2026/08/21(金) 18:15:32.868ID:VXaI/Paq0
>>32
That's way too much, lol
Why's there 4 chairs at the living room table then?
34Anonymous2026/08/21(金) 18:15:23.943ID:fXVxrfAI0
>>1
If I were building a 4LDK (4 bedrooms plus living/dining/kitchen) within 30 tsubo (~99 m²), I'd go with something like this:
38Anonymous2026/08/21(金) 18:16:51.477ID:/RYWUHlF0
>>34
So you have to walk through the washroom and changing room to get to the Western-style room?
64Anonymous2026/08/21(金) 18:27:54.251ID:DCe+Tpt10
>>34
Having the kid's room (presumably) right past the changing room sounds like a nightmare, honestly.
72Anonymous2026/08/21(金) 18:30:33.523ID:fdg8up770
>>34
I have no idea what you were going for with this layout.
Looks like something an AI spat out.
49Anonymous2026/08/21(金) 18:20:15.956ID:fdg8up770
The moment you step inside, it feels incredibly cramped.
51Anonymous2026/08/21(金) 18:20:55.650ID:DlbUAy66r
>>49
The hallway narrowing down isn't great.
I did make sure to keep it at 910mm (standard Japanese building module width), for what it's worth.
125Anonymous2026/08/21(金) 18:59:48.749ID:rqsqE6wx0
>>51
910mm is measured center-to-center between walls, so you need to picture the actual walkway as about 100mm narrower than that.
53Anonymous2026/08/21(金) 18:22:04.531ID:DlbUAy66r
It's just an amateur with no construction knowledge putting this together, so go easy on it.
56Anonymous2026/08/21(金) 18:24:09.432ID:IdBiXYBm0
>>53
ID:fXVxrfAI0 is a solar-panel zealot who's always starting threads like this on VIP, best not to engage.
60Anonymous2026/08/21(金) 18:26:24.072ID:fXVxrfAI0
>>53
There's "not knowing" and then there's this — way beyond the pale.
74Anonymous2026/08/21(金) 18:31:27.072ID:DlbUAy66r
>>34
Wait, if you go in next to the entrance here, aren't you boxed in by walls on 3 sides?
Where do you even get into the room from?
89Anonymous2026/08/21(金) 18:41:07.405ID:fXVxrfAI0
>>74
Should be obvious if you think about it normally.
That's just the threshold between the doma (earthen entry floor) and the kamachi (raised step) — it only looks like a wall.
93Anonymous2026/08/21(金) 18:42:40.616ID:DlbUAy66r
>>89
Oh, that's the kamachi?
I thought it was a wall.
75Anonymous2026/08/21(金) 18:31:38.067ID:ozezN8RL0
Isn't the living room kind of huge?
Seems like the AC wouldn't cool it well.
77Anonymous2026/08/21(金) 18:32:17.197ID:DlbUAy66r
>>75
I actually work in equipment installation, so I'm planning to put in a packaged air conditioner!
Though nothing's actually decided about building it yet.
78Anonymous2026/08/21(金) 18:33:31.738ID:wxcoWvPv0
>>75
If the LDK (living/dining/kitchen) is 33 square meters, that's under 20 tatami mats, so a regular AC should handle it fine.
142Anonymous2026/08/21(金) 19:42:38.700ID:2TJypfRj0
The LDK is needlessly large and L-shaped, so the AC won't circulate well and it'll be a pain to actually use.
143Anonymous2026/08/21(金) 19:44:40.077ID:pZt/dYhId
>>142
Sounds like the L-shape is a deliberate choice, so I guess that's fine.
Though the bathroom being dead center does bug me a bit…
145Anonymous2026/08/21(金) 19:47:10.426ID:2TJypfRj0
>>143
And taking out the food waste means walking all the way around to the front door. That's unreal.
147Anonymous2026/08/21(金) 19:47:40.611ID:DlbUAy66r
>>145
Isn't that pretty normal, though?
148Anonymous2026/08/21(金) 19:48:43.639ID:S6k9qEtB0
>>145
How much do you hate walking, seriously…

*This article is compiled from excerpts and a summary of the 5ch (News VIP) thread “[Image] I simulated the kind of house I’d like, take a look.”

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