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Hotel 645 Seosan

서산 호텔645

4.8

Exceptional(238)

2026.06.22

They contacted me by text in advance, so there was no inconvenience. The room was spacious and clean. It would be better if the entrance that turns off the main road to the side was marked ahead of time.

5.0Excellent

2026.06.10

Clean Second Visit A hub for trips to Seosan, Taean, and Yesan

5.0Excellent

2026.06.07

You receive a text message timed to the reservation check-in time. The accommodation is clean and the system is convenient. Thank you for the water and beverages. The bathtub is large and there is a clothes steamer/styler, which is nice.

5.0Excellent

2026.06.04

Very clean and I liked it.. I had a good rest~

5.0Excellent

2026.06.03

It's a bit remote but tidy and fine. At night there was an unexpected airplane noise that startled me, but apart from that it was quiet and pleasant.

5.0Excellent

2026.05.30

One parking space per room 👍 Spacious and clean! The city center is about ten minutes away, but it was quiet and nice.

5.0Excellent

2026.05.28

Extremely clean and really great.

5.0Excellent

2026.05.27

The accommodation was really so clean, I loved it. The amenities were perfect and the room not a speck of dust. There was a large bathtub, an air dresser, and the TV was really huge. I had such a restful stay. This place in Seosan is the best value for money. I liked it because it was so tidy. It was also great for coming with kids. ♡♡

5.0Excellent

2026.05.23

It was clean and I was very satisfied with the facilities~^^

5.0Excellent

2026.05.20

It's really great to go with kids! You won't find a better value for money than this.

Select Rooms

About this property

Located in Seosan, the city where the sun rises, Hotel 645 aims to be a brand that deeply impresses customers with its always sophisticated services and facilities. Through its modern and luxurious rooms and private 1:1 drive-in system, we aim to provide guests with a higher dimension of lifestyle. At Hotel 645, fill your day with life balance and joy through a comfortable rest.

Facilities

Room Amenities

Business

Services

Entertainment

Others

Family

Wi-Fi

Outdoor

Safety & Security

Smoking

Spa & Wellness

Transport & Parking

Room Amenities: Essential drugs, Air Purifier, Amenity

Business: Business

Services: Full Hour Front Desk

Entertainment: Free Movie(OTT), In-room PC, Mirror Room, Game, PC Room

Others: Loft Area, Couple Room, Unmanned Hotel, Twin Bed

Family: Family

Wi-Fi: WIFI

Outdoor: Terrace

Safety & Security: CCTV in Public Area, Full Hour Security, Fire Extinguisher, Security System, Outside CCTV, Carbon Monoxide Detector, Fire Alarm, Smoke Alarm

Smoking: Smoking area available, Non-smoking room

Spa & Wellness: Spa/Whirlpool

Transport & Parking: Parking Allowed

Language support: 한국어
English

House Rules

Basic Policy

Please confirm the standard occupancy for each room; please be advised that additional fees will apply for extra guests.

If you wish to check in before the standard check-in time (before 6:00 PM), an early check-in fee may apply.

All rooms are non-smoking. A cleaning charge will be applied if smoking occurs.

Rates may vary during peak seasons, specific dates, and holidays (including the day before).

ID will be checked upon check-in, and minors are restricted from entry. (Please be sure to bring your ID.)

If you have any inconveniences, please contact the front desk at any time!

Children Admission/Additional Guests

Children are allowed for family units.

Children under 12 years old accompanied by parents can stay without additional charges.

For additional guests aged 13 or older beyond the standard occupancy of 2 people, an additional charge of 20,000 KRW will apply per person upon check-in.

Pet Companion Information: Pets are not allowed.

Smoking Information: All rooms are non-smoking.

Children policies

Children allowed

~17

Parking

Fee: Free

Information: Only one parking per room available

Booking Notice

Reservation Notice: All rooms are non-smoking. A cleaning charge will be applied if smoking occurs. Room rates are based on double occupancy. For special rooms such as Suite/Premium Family Twin, direct confirmation of the number of guests is required. An additional fee applies for each extra person (inquire with the accommodation). An additional fee may be automatically charged if checkout time is exceeded. Please confirm with the affiliated property directly regarding the possibility of minors checking in before proceeding with your reservation. Cancellations/refunds are not possible for denied entry due to reservations made by unaccompanied minors. ID verification may be requested for mixed-gender groups, and entry may be denied if not presented. Cancellations are non-refundable in this case. Room information may change frequently due to circumstances at the affiliated property. Our company is not responsible for any disadvantages caused by this. Please refrain from excessive noise at night, as eviction measures may be taken. Criminal charges may be pressed for damage to or theft of items in the room.

Seller information

About this property

Facilities

Room Amenities

Business

Services

Entertainment

Others

Family

Wi-Fi

Outdoor

Safety & Security

Smoking

Spa & Wellness

Transport & Parking

Room Amenities: Essential drugs, Air Purifier, Amenity

Business: Business

Services: Full Hour Front Desk

Entertainment: Free Movie(OTT), In-room PC, Mirror Room, Game, PC Room

Others: Loft Area, Couple Room, Unmanned Hotel, Twin Bed

Family: Family

Wi-Fi: WIFI

Outdoor: Terrace

Safety & Security: CCTV in Public Area, Full Hour Security, Fire Extinguisher, Security System, Outside CCTV, Carbon Monoxide Detector, Fire Alarm, Smoke Alarm

Smoking: Smoking area available, Non-smoking room

Spa & Wellness: Spa/Whirlpool

Transport & Parking: Parking Allowed

Language support: 한국어
English

House Rules

Basic Policy

Please confirm the standard occupancy for each room; please be advised that additional fees will apply for extra guests.

If you wish to check in before the standard check-in time (before 6:00 PM), an early check-in fee may apply.

All rooms are non-smoking. A cleaning charge will be applied if smoking occurs.

Rates may vary during peak seasons, specific dates, and holidays (including the day before).

ID will be checked upon check-in, and minors are restricted from entry. (Please be sure to bring your ID.)

If you have any inconveniences, please contact the front desk at any time!

Children Admission/Additional Guests

Children are allowed for family units.

Children under 12 years old accompanied by parents can stay without additional charges.

For additional guests aged 13 or older beyond the standard occupancy of 2 people, an additional charge of 20,000 KRW will apply per person upon check-in.

Pet Companion Information: Pets are not allowed.

Smoking Information: All rooms are non-smoking.

Children policies

Children allowed

~17

Parking

Fee: Free

Information: Only one parking per room available

Booking Notice

Reservation Notice: All rooms are non-smoking. A cleaning charge will be applied if smoking occurs. Room rates are based on double occupancy. For special rooms such as Suite/Premium Family Twin, direct confirmation of the number of guests is required. An additional fee applies for each extra person (inquire with the accommodation). An additional fee may be automatically charged if checkout time is exceeded. Please confirm with the affiliated property directly regarding the possibility of minors checking in before proceeding with your reservation. Cancellations/refunds are not possible for denied entry due to reservations made by unaccompanied minors. ID verification may be requested for mixed-gender groups, and entry may be denied if not presented. Cancellations are non-refundable in this case. Room information may change frequently due to circumstances at the affiliated property. Our company is not responsible for any disadvantages caused by this. Please refrain from excessive noise at night, as eviction measures may be taken. Criminal charges may be pressed for damage to or theft of items in the room.