How fun! Well, low vision and blind have some overlapping needs and some needs that are unique to the level of vision.

* Lighting: I have low vision and I have to have massive amounts of light to see. (Retinitis Pigmentosa, as the rods go, it takes more light to "activate" them, if they work at all). Most homes actually have a lot of mood lighting. I need reading-level lighting for everything. LOL And with this lots of plugs.

Example, i removed the cover of my living room ceiling light to let more light shine through and I buy very bright bulbs. This is in addition to end table lamps, a floor lamp with 4 very-bright bulbs, and a massive bay window.

My office has a string light of 25 bulbs, a ceiling light with the cover off, and 2 floor lamps.

* Obstacles, corners, edges: I have a tiny visual field left, so it's super easy to hit things, miss things that you're trying to grab, or bump into things.
* Storage: related to this is the high need for organization and storage. I'm in a huge mess where I am now, and it's really difficult. And when everything is out and stacked and just everywhere, you also can't see well enough to know what it is you're looking at and find it. So finding things that are out in stacks and boxes and bins is not very fun. Looking for things in your few kitchen cabinets when everything is stacked on top of each other, kind frustrating.

My knowledge would be as a parent of a child with albinism. Many with albinism would be photophobic and glare can really negatively affect their vision. So slatted blinds where the blinds can be tilted up so the room is bright but no direct sun as the light it hitting the ceiling, maybe no south facing windows? No sharp corners on counters, protruding windowsills etc. Floor and walls distinct colours, no crazy patterns or stripes on stair carpet where edges can't be differentiated. As large a TV as possible. No glass coffee tables, kitchen tables, islands. Would need to easily be able to tell if Patio doors/French doors are open or closed.

Depth perception can be non existent in some conditions

And appliances with touch screens are a nightmare, knobs and real buttons are best!

No random pillars to run into. Try to keep load bearing areas in the actual walls and not a pillar in the middle of the living room. Also, any major floor transitions aren't the safest. Meaning the ones that create ledges, as we can't see them and they are constant trip hazards.

I would add high contrast everything. Like highlighted stripes at the end of each step, a kitchen counter that I can clearly tell apart from the floor, cabinet doors that are a bright contrast color on the inside so I can tell when they're open, doors with two differently painted sides so I can tell when they're open. Higher working space in the kitchen so I don't have to bend down because I have to get really close to everything. A floor where I can see dirt or things that have fallen down well, adjustable lights and blinds, no high cupboards because I can't see up there, a roomy entrance so I don't trip over shoes, no steps in front of house, a fenced backyard where my guide dog can safely roam, a huuuuge TV...
The lighting is probably the most important to visually impaired folks. Some need very bright lights, some (like me) can't stand light at all and need a way to dim it.
What comes to my mind when I think about completely blind people is light switches that make it noticeable if the light is on, blinds with switches that make it clear if they're up or down.

no touch screens.

use pocket doors where possible. A halve open door is a headache waiting to happen. all of my kitchen cabinets are drawer are stacks. that way i know what is in each drawer and can feel what I am looking for.
zero entry should
shower with water control at entry and shower head at other end. This allows you to adjust the water before entry. I also use the temp adjustable handle that allows me to set the temp with the little handle and the the big handle turns water off and on. that way i never have to adjust the temp. just turn it on and go.
I also gave all my exterior doors opening out. same reason if someone leave door open for me I don’t find out the hard way.
continues flooring through. No rugs, major trip has are.
Gas stove. easier to feel heat and burner than smooth top range.
plugs are a bitch for me. I have several in each room that are at 48” Having to bend over to feel how to plug in a plug at 18” is not fun. I am over 6’ tall.
if it’s in the budget 8’ doors. 6’8” doors don’t get it anymore for a lot if the public now days. all Kitchen island chairs should fit under the counter. no bar stool should be left out as trip hazard.

I'd say, no sunken floors or non-standard stairs.

I haven't seen many sunken floors or level changes recently but they are a good way to forget and twist an ankle.

By non-standard, I mean steps that are different than the normal size in your country. Think, "courthouse steps." I'm sure that steps that are 3 inches tall and 2 feet deep look dramatic but they are a super pain in the ass when using a cane(Not that I use a cane in my house but having to memorize the size of another set of stairs seems like something I'd like to avoid.).

And to chime in with the others. make lighting adjustable to suit preference. I still have a decent amount of vision but I would guess that when things do go dark, I'd probably want to be sure that down means off... always.

Ooh! I just bought a house 9mo ago and while it wasn't designed for accessibility, it has a few features that make it accessible and that I really like.

I was going to post a photo of my living room/kitchen, but I don't want someone to google image search it and find me since there's a very similar real estate listing out there... but basically it's lit like $1 and it's amazing - 26 bright LED pot lights. This is the feature that sold me on the house (well, that and the floors). Most blind people have some remaining vision - it varies as to how usable it is.

What I don't like, though, are the front steps. They're uneven in height and need redone. That doesn't happen so much on interior steps, but still can on exterior ones. Mine also don't have a hand rail. If you have exterior steps, make them even and add a hand rail.

Make transitions between different rooms/flooring types as seamless as possible, no bumps, drops, strips that you can trip over, etc.

We have a giant butcher block island in the kitchen. My husband rounded the corners on it a bit which has saved my hip a couple of times.

Be consistent about where you place things like light switches and at least 1 electrical outlet in relation to doorways.

All of our bottom cabinets and the big, full-height ones beside our stove have drawers/shelves/racks that pull out, which makes it a lot easier to find what's in them.

Oh! One thing we've gotten into the habit of doing - we have a wire basket next to our kitchen sink and all of the sharp knives go into there, so that way no one cuts themselves when reaching into the sink while doing dishes and we know where the sharp ones will be. If you wanted to work something like this into the kitchen design, either as a part of the counter space or as a smaller, narrow little sink beside the main one, that might be cool.

Also the doorways in our house are slightly wider than average and I bump into them a lot less (I lack peripheral vision), so that's nice.

I don't know if this is something you'd be designing for or not, but the location of the hot water heater allows plenty of room to safely get around it and it has a no-brainer electric igniter on it that you don't really have to see to use. This has come in handy a time or two when I've had to re-light it because the city's been doing work and needed to turn the gas off.

All I need is appliances with knobs instead of touch screens, and braille labels on said appliances. No smart stuff. Smart things are great until they stop working or an app update makes them inaccessible, so skip the smart appliances.

Bannisters both sides of stairs

Emergency buttons at floor level in case of falls

Light switches and controls at consistent height

Consistent fittings - anything that appears multiple times in the same house is the same, eg taps, plugs, toilet flushers in bathrooms, door & window handles throughout house

Lots of storage with lots of non-moving compartments - drawers that have two states (open or closed) should be fine but something like a carousel would be a P.I.T.A. to figure out how it’s oriented and where the desired item is located on it

Put as much of it online on voice control as possible, e.g. “Alexa, turn on the lights in the living room”, “hey google, is the front door locked?” (if you go the techno route, make sure each wired-up thing is secure)

Anything with a display should also be e-readable or read to you, e.g. the thermostat should say what temp it’s currently recording and what it’s trying to reach.

No roombas or other autonomous moving objects.

Sills in doorways should be level with rest of floor

Garden or outside space treat similarly but please have one

What the best door handles? Especially the main exterior door with locks?

How do you use a microwave oven?