In September 2026, the median monthly rent on a new apartment lease in Seongdong-gu (성동구) was ₩1,800,000, with a median deposit of ₩200m, across 140 new leases. Counting renewals too, the median was ₩1,650,000.
One email a month, when new contracts are published.
| Home type | Monthly rent | Deposit with monthly rent | Jeonse deposit | Typical size |
|---|---|---|---|---|
| Apartment | ₩1,800,000140 new leasesAll contracts: ₩1,650,000 | ₩200m | ₩750m103 new leasesAll contracts: ₩740m | 60 m² |
| Officetel | ₩780,00083 new leasesAll contracts: ₩570,000 | ₩10m | ₩197m17 new leasesAll contracts: ₩193m | 23.5 m² |
| Villa or row house | ₩600,00085 new leasesAll contracts: ₩550,000 | ₩50m | ₩210m66 new leasesAll contracts: ₩210m | 33.9 m² |
| Detached or multi-family house(단독·다가구) | ₩510,000180 new leasesAll contracts: ₩500,000 | ₩10m | ₩145m32 new leasesAll contracts: ₩138m | 27 m² |
Medians are for new leases, which is what a new tenant pays. They leave out likely public rentals. Renewals usually cost less, so the “All contracts” figure includes them for comparison. Typical size is the median exclusive floor area of the monthly-rent contracts. “Too few” means fewer than 10 contracts.
House figures come from the Seoul Metropolitan Government’s rent contract data and cover Seoul only. Many of these leases are for one room or one floor of a multi-family house. The typical size is the area rented, not the whole house.
Median monthly rent on new apartment leases, all sizes. A longer bar means higher rent.
The median reported apartment sale was ₩1.9b for a median of 80.9 m², across 61 sales.
In Seongdong-gu, new apartment jeonse deposits were about 41% of sale prices in the same buildings (July to September 2026). Across Korea it was 73%.
The closer a deposit is to the home’s value, the less is left to repay it if prices fall or the landlord has other debts. Check the specific home before you pay.
Check a deposit’s safetyPer building: median new jeonse deposit per m² divided by median sale price per m². The figure is the middle value across 61 buildings with both (328 jeonse leases, 191 sales).
In Seongdong-gu, the median renewal raised the rent or deposit by 5.0% (July to September 2026). In 63% of renewals the increase was 5% or less, and 17% had no increase.
When the tenant used the renewal right (계약갱신요구권), the increase was 5% or less in 79% of 515 renewals. When the tenant did not use it, the increase was 5% or less in 43% of 405 renewals.
Under the Housing Lease Protection Act (주택임대차보호법), a tenant can use the renewal right (계약갱신요구권) once. The renewed lease lasts 2 years. When the tenant uses the right, the rent or deposit can rise by 5% at most. A city or province can set a lower cap by ordinance (조례).
The 5% cap applies only during a lease that is still in effect, and to a renewal where the tenant uses the renewal right. If you and the landlord agree on a new rent without using the right, this is an agreed renewal (합의갱신). The increase can then be more than 5%. You can still use the renewal right later.
Based on 920 renewals of apartments, officetels and villas. Jeonse (전세) renewals are compared by deposit. Monthly-rent renewals are compared by rent, and only when the deposit did not change. Renewals where both changed are left out. The data is lease contracts reported to the government.
The housing price explorer lets you filter reported contracts by size, neighborhood and building.
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See the offices and phone numbersThese are reported contracts from the Ministry of Land, Infrastructure and Transport (국토교통부) open data APIs, as of 2026-11-05. Monthly rent (월세) and jeonse (전세) cover apartments, officetels, and villas or row houses. Sale prices cover apartments. Cancelled sales are excluded.
Contracts can be reported weeks after signing, so the newest month here is September 2026: the last month with at least 30 days of reports after it ended.
Headline medians use new leases only. About half of reported contracts are renewals. Renewals usually cost less than a new lease, so including them would understate what a new tenant pays. Headline medians also leave out contracts that look like public or subsidized rentals (LH, SH and youth housing): rent and deposit together under 40% of the area’s middle value per m² that month. The source does not mark these, so this is our estimate.
Detached and multi-family house (단독·다가구) leases come from the Seoul Metropolitan Government’s rent contract data, which covers Seoul only. As with the other housing types, we count new leases only and leave out leases that are likely public rentals.
Each median mixes every size and building that was reported that month. A change from one month to the next can come from a different mix of homes, not a change in prices. These are past contracts, not homes you can rent today.