TOKYO / OTA / OMORIKAIGAN
Tmark City Hotel Tokyo Omori
Tmark City Hotel Tokyo Omori
Cross the bridge from Keikyu Omorikaigan Station and you are there — lift access, room space and breakfast, considered together.
Photo source: Trip.com hotel gallery
How Should I Choose?
- Easiest by Keikyu: about 1 minute across the pedestrian bridge with a lift from Omorikaigan Station; about 10 minutes from JR Omori Station.
- Two travelling together: 15㎡ with one bed, 22㎡ with two beds; three travelling together can choose the 25㎡ room with three single beds.
- Breakfast is an in-house buffet, served from 06:30 in the first-floor dining area.
If your trip goes in and out through Haneda Airport and you want a proper breakfast and your own bed back at the hotel, I would look at Tmark City Hotel Tokyo Omori first. Its strengths are concrete: it is close to Keikyu Omorikaigan Station, the overpass has a lift, and the twin and triple room choices are clear.
But with the location called “Omori”, you need to see the railway lines clearly. If you only take JR every day, the walk to JR Omori Station is not short; if you often take Keikyu, this hotel is almost just across the bridge.
Cross the Bridge from Omorikaigan Station: Close to Keikyu, a Little Farther from JR
The core of choosing a room at Tmark City Hotel Tokyo Omori is not the “Omori” in its name, but whether you will take Keikyu or JR. The hotel’s official website and the Ota City Tourism Association both state it clearly: about a 1-minute walk from Keikyu “Omorikaigan Station” across the pedestrian bridge in front of the station, and about a 10-minute walk from the central ticket gates of JR “Omori Station” toward the east exit. Both routes are usable, but if you will drag your suitcase straight to Haneda Airport the next day, I would treat Omorikaigan Station as the main entrance; if your itinerary is mostly along the JR Keihin-Tohoku Line, you need to count the extra walk into your morning and evening time each day.
The easiest thing to mix up is that “Omorikaigan” and “Omori” are not the same station. The first is on the Keikyu Main Line; only the second is JR. Especially in the morning, when you want to head to Shinagawa or change trains, you cannot just see the characters for Omori on the map and walk out the door; I would first put the line you will actually take that day into your navigation. A location like this suits a southern Tokyo itinerary around Haneda, but it does not mean you can ride from your room to Shinjuku or Shibuya without changing trains.
People with large luggage do not need to see “pedestrian bridge” and assume they must carry their cases upstairs: the hotel’s official access page clearly states that the pedestrian bridge crossing the road in front of the station has a lift. Keikyu’s station information also lists lifts and escalators at Omorikaigan Station. So I would choose the route via the pedestrian bridge lift, crossing from Keikyu Omorikaigan Station to the side of the road where the hotel stands, then heading to the hotel entrance; compared with the shortest route using only stairs, this route better fits the needs of people with luggage and strollers. It is also what sets this hotel apart from some station-front hotels: not just a short station distance, but crossing facilities you can actually use.
From the hotel’s official website, you can reach Haneda Airport using Keikyu and nearby transfer routes, and the “about 20 minutes” figure is a reference journey time. My advice is to plan airport check-in time, whether you need to change to an airport line, and that day’s services together, and not to mistake “20 minutes to the airport” for 20 minutes from your room to the departure gate.
Shopping and Simple Meals: Omori’s Two Stations Have Different Daily Rhythms
The hotel stands beside National Route 1 (Dai-Ichi Keihin) near Omorikaigan Station, which suits people who will take Keikyu repeatedly every day; there are also convenience stores and a large supermarket nearby as supply points. Walking toward JR Omori Station, dining and commercial activity gradually increase. If I stay several nights in a row, I would arrange dinner near JR Omori Station, buy drinks and snacks, then walk back to the hotel; if I stay only one night, I would mainly rely on supplies easily available by the Keikyu station, and would not necessarily make a special trip to the JR station area.
If I want to spend half a day near Omori, I would consider an attraction like the Shinagawa Aquarium, which belongs to the same everyday area as Omorikaigan Station. It fits a relaxed morning or a half-day trip with children better than treating this hotel as a walking base for every popular spot in Tokyo. The appeal of staying in Omori is keeping a southern Tokyo, everyday feel with Keikyu transport, and a little less of the density of tourist districts.
Photo source: Trip.com hotel gallery
15㎡ Double, 22㎡ Twin, 25㎡ Triple: Start from How Your Companions Sleep
This hotel’s room differences are well worth a careful look. The standard double room is listed at 15㎡ with one large double bed; the standard twin room is 22㎡ with two small double beds; the superior twin room is 25㎡ with two single beds; the triple room is 25㎡ with three single beds. Even where both say “twin”, the standard and superior rooms differ in area and bed type. And the triple room must not be mistaken for a twin room plus a sofa bed — it has a clear configuration of three single beds.
| Room type | Area | Bed type | Best for |
|---|---|---|---|
| Double room (non-smoking) | 15㎡ | 1 large double bed | Two people on a short stay who share a bed and prioritise transport |
| Standard twin room (non-smoking) | 22㎡ | 2 small double beds | People who want separate beds and value a larger bed surface |
| Superior twin room (non-smoking) | 25㎡ | 2 single beds | Two travelling together who value floor space for moving around and have more luggage |
| Deluxe twin room (non-smoking) | 25㎡ | 2 single beds | People who prefer a different configuration at the same area class |
| Triple room (non-smoking) | 25㎡ | 3 single beds | Three travellers who each want their own bed |
Double Room | 15㎡, One Large Double Bed
If two people are normally used to sharing a bed and spend almost the whole day out, the 15㎡ double room may already be enough. The photos show one large bed, a desk by the bed and a passage inside the room; I would treat it as an efficient room for sleeping, not a spacious room where you can open two large suitcases at the same time and still walk around inside. People who want to stay several nights and need to sort a lot of clothes every day should compare it carefully with the 22㎡ twin room.
Photo source: Trip.com hotel gallery
Standard Twin Room | 22㎡, Two Small Double Beds
When two people each sleep in their own bed, the standard twin room is 7㎡ larger than the 15㎡ double room. The photos show two beds side by side, a window and a passage by the beds, with beds positioned slightly wider than ordinary single beds, suiting friends, family or companions with different routines. Unlike one large bed, there is no need to share bedding, and it is easier for each person to rest. However, these photos belong only to this standard twin room and are not used to stand in for other twin or triple rooms.
Photo source: Trip.com hotel gallery
Superior Twin and Deluxe Twin Rooms | 25㎡, Two Single Beds
If you care more about the space for moving around away from the bed than about how wide the mattress is, I would look beyond the standard twin at the 25㎡ superior and deluxe twin rooms. Both keep the same bed type — two single beds — and a higher grade does not guarantee two large beds. Three square metres does not sound like much, but it can matter when you open two suitcases, sort clothes and use the desk; I would put the difference down to space and the actual plan contents, not judge from the room name alone which one must be more comfortable.
Triple Room | 25㎡, Three Single Beds
When three adults or friends travel together, the triple room with three separate single beds is the more direct choice. Booking a twin room and then trying to squeeze in a third person can easily make moving around and sleeping arrangements less than ideal. Although 25㎡ is a little larger than the standard twin, the average space per person is still limited when three people stay; if you bring a lot of shopping or large cases, I would leave space where luggage can be stored.
There is also a random-allocation plan that does not guarantee a specific room type. I would not use such a plan to gamble on definitely getting a twin room or a certain bed width; for friends and family travelling together, a confirmed number of beds is usually worth prioritising over random allocation.
The Buffet Breakfast from 06:30: Is It Worth Saving Time For?
This hotel has a genuine in-house breakfast service: the hotel’s official FAQ states that breakfast is in the first-floor dining area, served 06:30–10:00 with last entry at 09:30, in buffet form. For people heading to the airport tomorrow who need to get up early, being able to start eating at 06:30 is useful information; but for a very early flight, you still need to judge from that day’s departure time whether you can eat at all, and should not delay your transport plans just because breakfast is included.
The hotel gallery shows a baked-bread area, and meal combinations including hot dishes, salad, bread and drinks. I would see this as a breakfast style that can be combined in both Japanese and Western ways, not just one coffee with bread. If you like to sit down and eat your fill in the morning before going out, or want a steady first meal when staying several nights, this fits expectations better than a simple business hotel with no breakfast.
Photo source: Trip.com hotel gallery
Photo source: Trip.com hotel gallery
On cost, the hotel’s FAQ publishes an adult breakfast unit price for reference, but plans and dates may change. I would compare the gap between plans with and without breakfast, then ask myself whether I will actually eat at the hotel that day; if I stay five nights but want to explore a different breakfast place outside every day, there is no need to tie every morning down just because there is a buffet.
Common Spaces and How You Sleep: Strengths and Things to Watch
The hotel uses a modern, simple design, and the wooden decoration, lines and lighting in the lobby photos make the common spaces look clean and tidy. The hotel’s official website also states that it uses Sealy mattresses, a brand specification that can be confirmed, but “having a particular mattress brand” cannot guarantee that everyone’s sleep will feel exactly the same. What matters more is whether you want one bed, two beds or three beds, and whether you mind traffic noise.
Recent stay experiences often list station convenience, room comfort and breakfast variety as strengths, and a few reservations about cleaning details can also be seen. That makes me place my expectations on “transport and a reasonable room type” when choosing a room, rather than writing service and cleanliness up as a guarantee with no exceptions. If you are very sensitive to dust, equipment cleanliness, or need to work in the room for a long time, you can compare these conditions together with the room price.
Official check-in and check-out are listed as 15:00 and 11:00 respectively; it is not a hotel that leads with free airport transfers. Travelling to and from the airport still relies on Keikyu, other public transport or taxis, and if you want a hotel shuttle, do not apply other Haneda-area hotels’ transfer rules to Tmark.
One Night, with Children, or Four Nights in a Row: Each Calls for a Different Room
For travellers who stay just one night after landing in Tokyo and head to Shinagawa or Haneda the next day, I would first compare the 15㎡ double and the 22㎡ twin. Two people sharing a bed can shrink the budget and space needed; if each wants a good sleep, choosing a twin directly involves less adjustment. Because the nearest station, Keikyu Omorikaigan Station, is very close, going out early does not mean detouring through residential streets — just leave time as a transport buffer.
For staying several nights in a row, especially with children or shopping, I would compare the 25㎡ twin or triple rooms. Not every family needs the largest bed; rather, every evening back at the hotel you need to put down backpacks, change clothes and sort things, and a longer stay easily magnifies differences in room size. The three single beds for three travelling together also reduce sleep disturbance, so there is no need to take turns deciding who sleeps on the sofa each night.
If your main area of activity is around JR Omori Station, the roughly 10-minute walk back to the hotel is a fixed daily time cost. Conversely, for people who mainly use the Keikyu Line, the convenience of being one minute across the bridge is more obvious. I would decide whether to stay here from the line used most often across the whole trip; its best role is a compromise between transport and everyday amenities, not a single hotel every Tokyo visitor should choose.
Final Verdict: When This Hotel Deserves Priority
Strengths
- About 1 minute across the bridge from Keikyu Omorikaigan Station, with a lift on the bridge; very direct for people dragging luggage or needing Keikyu.
- Many configurations — 15㎡ double, 22㎡ twin and 25㎡ twin/triple — so friends, families with children and groups of three can choose by number of beds.
- In-house buffet breakfast from 06:30, with bread and Japanese-Western combinations — a concrete choice for people who want to sit down in the morning.
Trade-offs to Accept
- About a 10-minute walk from JR Omori Station, so if you take JR every day it is less convenient than a hotel right by a JR station.
- 25㎡ does not mean three people can definitely spread out three large suitcases; for three people staying several nights, moving space still needs attention.
- The hotel does not provide a free airport shuttle, so people who value direct terminal access or very early/late travel still need to work out actual transport services.
My choice is clear: if your main transport will use Keikyu Omorikaigan Station, you want to be back at the hotel in about a minute, and for breakfast you want somewhere to sit down in the morning, I would put Tmark City Hotel Tokyo Omori fairly high on the list. Two people used to sharing a bed can look at the 15㎡ double, those sleeping separately should choose the 22㎡ twin; if luggage is large or the stay is longer, compare the 25㎡ class.
But if you take JR in and out every day, want the hotel to arrange airport transfers for you, or stay as three people yet expect a very spacious living area, I would also look at other hotels beside JR Omori Station or directly connected to the airport. What this hotel is worth is the balance between the Keikyu station, room types and breakfast, not cramming every accommodation need into one answer.
Fact-check date: 2026-10-27