Self-Interior vs Turnkey (Full) Interior in Korea: Which Renovation Route Saves More
Costs are translated from Korean won at roughly ₩1,540 = $1 USD, the late-June 2026 spot range for USD/KRW. Exchange rates move daily — treat the dollar figures as ballpark, not exact.
Quick Answer
- Self-interior (셀프 인테리어) — you manage everything yourself — cuts a Korean apartment renovation by roughly 40–60% versus a turnkey firm, because you skip the labor markup and the contractor's margin ([Glasswallet, 2026](https://glasswallet.com/calculate/interior-cost/self-vs-contractor/)).
- Turnkey (턴키) full-interior runs about ₩2,000,000–₩3,000,000 per pyeong (~$1,300–$1,950 USD) and finishes a 24–40 pyeong apartment in around 2 months, with one company handling design, construction, and warranty ([LifeBase, 2026](https://lifebase.kr/blog/0446-interieo-teonki-sigong-bangsig-jangdanjeom-hannune-bogi/)).
- The cheapest safe middle path is semi-self (반셀프): hire pros for waterproofing, plumbing, tile, and kitchen; DIY the wallpaper, paint, and lighting. It saves 20–35% while keeping the risky work licensed ([Glasswallet, 2026](https://glasswallet.com/calculate/interior-cost/self-vs-contractor/)).
- Turnkey buys you a legal safety net: registered firms carry a 1–3 year defect-repair warranty by law (건설산업기본법 시행령 제30조), and platforms like Ohouse (오늘의집) add delay-and-defect guarantees worth up to ₩200,000/day ([Economist, 2023](https://economist.co.kr/article/view/ecn202306230017)). Self-interior gives you none of that.
Last updated: June 2026
Costs are translated from Korean won at roughly ₩1,540 = $1 USD, the late-June 2026 spot range for USD/KRW. Exchange rates move daily — treat the dollar figures as ballpark, not exact.
I've spent the last few years tracking how Koreans actually renovate — scrolling Today's House (오늘의집) before-and-afters at 1 a.m., pricing out 도배 (wallpaper) jobs, and watching friends agonize over the same question you're asking now. Do I do this myself and pocket the savings? Or do I hand a turnkey company the key, pay the premium, and sleep at night?
There's no single right answer. There's only the right answer for your apartment, your budget, and your tolerance for a tile saw at 9 a.m. on a Saturday. This guide lays out the real numbers, the hidden costs nobody mentions, and the legal stuff that decides who pays when a pipe leaks into the unit below.
Let's get into it.
What's the difference between self-interior, turnkey, and direct (직영) construction?
Korea splits renovation into three lanes. Understanding them is half the battle, because the words get thrown around loosely.
| Type | Korean term | Who manages it | What you do | Typical savings vs turnkey |
|---|---|---|---|---|
| Turnkey (full) | 턴키 | One interior company | Pick finishes, pay, move in | 0% (baseline) |
| Direct | 직영 | You hire each trade separately | Schedule trades, source materials, supervise | ~15–25% |
| Semi-self | 반셀프 | Split — pros + you | DIY the easy work, hire out the hard | 20–35% |
| Self | 셀프 | You, entirely | Everything, hands-on | 40–60% |
Turnkey (턴키) means "you get the key." A single firm handles design, demolition, materials, every trade, and the final handover. You make decisions and write checks. That's it (LifeBase, 2026).
Direct (직영) means you become the general contractor. You hire the 도배 crew, the flooring crew, the electrician — each one separately — and you coordinate the schedule yourself. You save the firm's overhead but you eat the headaches.
Self (셀프 인테리어) means you do the physical work. You hang the wallpaper. You lay the click-flooring. You swap the light fixtures. This is the route that fills Today's House with proud before-and-afters — and the occasional cautionary tale.
Most beginners who "go self" actually land on semi-self (반셀프) without planning to, because some jobs simply aren't DIY-safe. More on that below.
How much does turnkey full-interior cost in Korea in 2026?
Turnkey is priced per pyeong (평, about 3.3 square meters). The going rate in 2026:
| Construction type | Cost per pyeong (₩) | Cost per pyeong (~USD) |
|---|---|---|
| Self (셀프) | 1,000,000–1,500,000 | $650–$975 |
| Direct (직영) | 1,500,000–2,000,000 | $975–$1,300 |
| Turnkey (턴키) | 2,000,000–3,000,000 | $1,300–$1,950 |
Source: LifeBase, 2026. Per-pyeong rates assume mid-grade brand materials.
So turnkey costs roughly ₩500,000–₩1,000,000 more per pyeong than doing it yourself. On a 30-pyeong apartment, that gap is ₩15–30 million ($9,700–$19,500) — real money.
Scaled to whole apartments, a full renovation looks like this:
| Apartment size | Turnkey full renovation (₩) | ~USD |
|---|---|---|
| 20 pyeong (~66–79㎡) | 15,000,000–30,000,000 | $9,700–$19,500 |
| 30 pyeong (~99–115㎡) | 25,000,000–50,000,000 | $16,200–$32,500 |
| 40 pyeong+ (132㎡+) | 40,000,000–80,000,000 | $26,000–$52,000 |
Source: LifeBase, 2026. A full (전체 시공) job covers demolition and waste disposal, flooring, walls, ceiling, electrical, lighting, kitchen, and bathroom.
For a deeper line-item breakdown across grades, see our complete 2026 Korean interior pricing guide.
How much does self-interior actually save?
Here's where it gets concrete. For a 20-pyeong apartment, one Korean cost analysis put self-interior against professional work item by item:
| Item | Self (셀프) | Professional (₩) |
|---|---|---|
| Wallpaper (도배) | 600,000–800,000 | 1,400,000–1,600,000 |
| Flooring (바닥재) | 1,200,000 | 2,200,000–2,500,000 |
| Lighting swap (조명) | 400,000–700,000 | 800,000–1,200,000 |
| Sink/kitchen swap (싱크대) | 800,000–1,500,000 | 2,500,000–3,000,000 |
| Bathroom partial reform (욕실 리폼) | 1,000,000–1,500,000 | 2,500,000–3,500,000 |
| Furniture/decor (가구·소품) | 1,000,000–1,500,000 | 2,000,000+ |
| Total | ~6,000,000–12,000,000 | ~18,000,000–30,000,000 |
Source: Joeunmoon, 2026.
That's roughly ₩6–12 million ($3,900–$7,800) for self vs ₩18–30 million ($11,700–$19,500) for pro on the same 20-pyeong unit. The savings sit squarely in that 40–60% band.
For a 30-pyeong apartment, a separate breakdown sorted the three routes side by side:
| Category | Turnkey/contractor (₩) | Semi-self (₩) | Self (₩) |
|---|---|---|---|
| Wallpaper (도배) | 1,500,000–2,500,000 | 1,500,000–2,500,000 | 500,000–800,000 |
| Flooring (바닥재) | 2,000,000–3,500,000 | 2,000,000–3,500,000 | 800,000–1,500,000 |
| 2 bathrooms (욕실) | 5,000,000–8,000,000 | 5,000,000–8,000,000 | 5,000,000–8,000,000 |
| Kitchen (주방) | 4,000,000–7,000,000 | 4,000,000–7,000,000 | 4,000,000–7,000,000 |
| Lighting (조명) | 800,000–1,500,000 | 300,000–600,000 | 300,000–600,000 |
| Total | 25,000,000–40,000,000 | 18,000,000–28,000,000 | 11,000,000–18,000,000 |
Source: Glasswallet, 2026.
Notice something? In the 30-pyeong table, the bathroom and kitchen rows barely move between self and turnkey. That's the catch nobody tells beginners: the two most expensive rooms in a Korean apartment — 욕실 and 주방 — involve waterproofing, plumbing, and tile that you really shouldn't DIY. So your "self" savings come almost entirely from wallpaper, flooring, and lighting. The wet rooms cost about the same either way.
This is exactly why semi-self exists, and why it lands at 20–35% savings instead of 40–60%. You only save on the parts you can safely touch.
Want the room-by-room math for your own place? Our self-interior cost room-by-room budget walks through each line, and the full USD-translated reno cost guide does the same in dollars.
Which jobs can you safely DIY — and which ones can't?
This single question separates a proud Today's House post from a flooded downstairs neighbor. Here's the honest split.
Safe to self (low skill, low risk):
- Wallpaper / 도배 — peel-and-stick or basic paper, on flat walls
- Painting — walls, doors, trim
- Lighting fixtures — if you only swap like-for-like, breaker off
- Contact paper / 시트지 on cabinets and countertops
- Curtains, blinds, shelving, furniture assembly
- Decor and styling — the part that actually shows in photos
Hire a pro (high skill or safety/legal risk):
- Waterproofing (방수) — get this wrong and water seeps into the unit below. You can be held liable for the downstairs neighbor's damage (Glasswallet, 2026).
- Plumbing (급배수) and gas — leaks, code, and your security deposit are all on the line.
- Electrical rewiring — moving circuits, not just swapping a fixture.
- Tile (타일) in wet zones — cracked grout becomes a leak.
- Wall demolition / structural changes (벽체 철거) — can hit load-bearing or shared walls.
- Molding and built-ins (몰딩 교체) — looks easy, finishes badly without the right tools.
The Korean consensus is blunt on this: 방수 공사는 반드시 업체 시공 — "waterproofing must always use a contractor." Botched waterproofing leads to 층간 누수 (inter-floor leaks) and a liability claim from the floor below (Glasswallet, 2026).
If you're renting under jeonse or wolse, check the rules before you touch anything — many landlords forbid permanent changes. Our guide on Korean jeonse apartment interior rules and restrictions covers what you can and can't do without losing your deposit.
How do time and stress compare?
Money is only half the decision. The other half is your weekends and your sanity.
| Factor | Turnkey (턴키) | Semi-self (반셀프) | Self (셀프) |
|---|---|---|---|
| Your time involved | Low — decisions only | Medium | High — hands-on, weeks |
| Calendar duration (30평) | ~6–8 weeks | 8–12+ weeks | Months (your schedule) |
| Coordination burden | Firm handles it | You schedule trades | All on you |
| Skill required | None | Some | A lot, learned fast |
| Stress level | Low (if firm is good) | Medium | High |
| Risk of costly mistake | Low | Medium | High |
A turnkey 24–40 pyeong job typically wraps in about 2 months, and modular techniques have been shortening that (LifeBase, 2026). With turnkey, those two months happen whether you're paying attention or not — the firm runs the schedule.
Self-interior has no fixed calendar. It takes as long as your evenings and weekends allow, which for working people often means a renovation that drags across two or three months of real time even if the actual labor is only a couple weeks. And every delay where you're living in a half-finished apartment is its own kind of cost.
The stress math is real. Self-interior's biggest hidden expense isn't a material — it's the redo. When a DIY job fails, you pay twice: once for your mistake, once for the pro who fixes it. As the Korean saying among renovators goes, 시공 실패 → 오히려 비용 더 드는 경우 — "a failed job ends up costing more, not less" (Joeunmoon, 2026).
What about quality and warranty — who's on the hook if it goes wrong?
This is the part that should weigh heaviest, and it's the part DIY enthusiasts skip.
In Korea, an interior renovation is a 도급계약 (contract for work). Under the Civil Code, the contractor carries 하자담보책임 (defect liability) — a no-fault legal duty to repair defects. You can demand repairs, claim damages instead of or alongside repairs, and even withhold final payment until defects are fixed (Easy Law / Korea Ministry of Government Legislation, 2026).
The statutory warranty periods, set by 건설산업기본법 시행령 제30조 (Construction Industry Framework Act Enforcement Decree, Article 30):
| Work category | Defect warranty period |
|---|---|
| Interior finishing — wallpaper (도배), tile, paint | 1 year |
| Windows/doors, plumbing (급배수), heating/cooling (냉난방) | 2 years |
| Roofing, waterproofing (방수), structural | 3 years |
Source: AJD Interior, 2026.
Here's the kicker: when you do it yourself, there is no contractor. No 하자담보책임. No warranty. If your DIY waterproofing fails in month four, nobody owes you a repair. You eat the fix and potentially the downstairs neighbor's damages.
Turnkey reverses all of that. The firm owns the outcome end to end. And modern platforms layer extra protection on top. Ohouse (오늘의집) requires every registered contractor to offer a minimum 1-year repair warranty, runs disputes through a dedicated team, and — under its 시공책임보장 (construction responsibility guarantee) — pays cash compensation of up to ₩200,000 per day for contractor-caused delays, plus lodging and storage costs (Economist, 2023; Sedaily, 2023). Ohouse built the guarantee specifically to take the defect-and-delay risk off the customer and put it on the platform (ohstory, 2023).
For context on how big these platforms are: Ohouse passed 20 million cumulative app downloads back in 2021 — roughly one in two Koreans (Sedaily, 2021). It's the default place Koreans both find inspiration and hire vetted firms. Our explainer on how Ohouse became Korea's interior inspiration hub digs into why.
How do you get and compare turnkey quotes?
If you lean turnkey or direct, don't sign with the first firm you visit. Korea has quote-comparison platforms built for exactly this:
| Platform | Korean name | Best for |
|---|---|---|
| Soomgo | 숨고 | Request quotes from multiple matched pros; partial or full jobs (Soomgo, 2026) |
| Ohouse | 오늘의집 | Vetted firms + the 시공책임보장 guarantee |
| Jipdak | 집닥 | Apartment-focused matching and supervision |
A few rules I'd hold to no matter which route you pick:
- Get at least 3 quotes. Per-pyeong prices vary wildly by firm and material grade.
- Put the warranty in writing. You can legally agree to a longer defect period than the statutory minimum — and you should (Easy Law, 2026).
- Itemize everything. Demolition and waste disposal (철거·폐기물 처리) are real line items that vague quotes "forget."
- Add 10–15% contingency. Old apartments (구축) hide surprises behind the walls.
For first-timers, our guide to finding the best Korean interior firm near you covers vetting red flags in detail.
So which route actually saves more — and for whom?
Self-interior saves the most on paper: 40–60% off turnkey. But that headline number assumes nothing goes wrong, you value your own time at zero, and you skip the wet-room work that doesn't get cheaper anyway. Strip those assumptions away and the picture shifts.
Here's my honest recommendation by situation:
| Your situation | Best route | Why |
|---|---|---|
| Tight budget, time, and some handiness | Semi-self | Save 20–35%, keep risky work licensed |
| Renter, small studio/officetel | Self (reversible only) | Peel-and-stick, lighting, decor — no permanent changes |
| Busy professional, want it done right | Turnkey | Pay the premium, get the warranty and your weekends |
| Full gut on an old apartment (구축) | Turnkey or direct | Hidden problems need a pro who owns the outcome |
| Confident DIYer, dry rooms only | Self | Maximum savings where it's actually safe |
The cleanest rule of thumb: DIY the parts that show in photos; hire pros for the parts that leak. Wallpaper, paint, lighting, and styling are where self-interior shines and where the savings are real. Waterproofing, plumbing, kitchen, and bathrooms are where a turnkey firm's warranty earns its premium.
If you want to start small and prove to yourself you can do this, our DIY Korean wallpaper (self-dobae) guide is the gentlest on-ramp — low cost, low risk, big visual payoff.
Frequently asked questions
Is self-interior always cheaper than turnkey?
On the controllable items — wallpaper, flooring, lighting — yes, by a wide margin. Self runs about 40–60% less than turnkey overall (Glasswallet, 2026). But the kitchen and two bathrooms cost roughly the same either way, because you shouldn't DIY waterproofing and plumbing. And if a DIY job fails, the redo can erase your savings entirely.
What's the difference between semi-self (반셀프) and full self?
Full self means you do all the physical work. Semi-self means you hire pros for the high-risk trades — waterproofing, plumbing, tile, kitchen — and DIY the easy, reversible parts like paint, peel-and-stick wallpaper, and lighting. Semi-self saves 20–35% versus turnkey while protecting you from the costliest mistakes (Glasswallet, 2026).
How long does a turnkey renovation take in Korea?
A turnkey job on a 24–40 pyeong apartment typically takes about 2 months, and modular construction methods are shortening that timeline (LifeBase, 2026). Self-interior has no fixed schedule — it stretches to fit your free time, which often means longer in real-world calendar days.
Do I get a warranty if I do the renovation myself?
No. A warranty (하자담보책임) only exists when a contractor performs the work under a 도급계약. The legal defect periods — 1 year for finishing, 2 years for plumbing and windows, 3 years for waterproofing and structural work — apply to hired firms under 건설산업기본법 시행령 제30조, not to your own DIY (AJD, 2026; Easy Law, 2026).
What's the single biggest mistake DIY renovators make?
Doing their own waterproofing or plumbing. A failed waterproof layer leaks into the unit below (층간 누수), and Korean civil liability can put you on the hook for the downstairs neighbor's damages. The Korean rule is firm: 방수 공사는 반드시 업체 시공 — waterproofing must always go to a contractor (Glasswallet, 2026).
Related Reading
- How Much Does Korean Interior Cost in 2026? Complete Pricing Guide
- Korean Self-Interior Reno: Costs Translated to USD (2026)
- Korean Self-Interior Cost: Room-by-Room Budget
- DIY Korean Wallpaper: Self-Dobae Guide
- How Ohouse Became Korea's Interior Inspiration Hub
- Korean Jeonse Apartment Interior Rules and Restrictions
Sources
- LifeBase. "인테리어 턴키 — 시공 방식 장단점 한눈에 보기." 2026. https://lifebase.kr/blog/0446-interieo-teonki-sigong-bangsig-jangdanjeom-hannune-bogi/
- LifeBase. "인테리어 가격 평수별 시공 견적 총정리 (20평~40평대)." 2026. https://lifebase.kr/blog/0478-interior-price-estimate-guide/
- Glasswallet (유리지갑). "셀프인테리어 vs 업체 시공, 비용 차이는 얼마? 장단점 비교." 2026. https://glasswallet.com/calculate/interior-cost/self-vs-contractor/
- Joeunmoon. "셀프로 하면 얼마? 전문가 맡기면? 20평대 인테리어 현실비교." 2026. https://joeunmoon.com/interiortip/%EC%85%80%ED%94%84%EB%A1%9C-%ED%95%98%EB%A9%B4-%EC%96%BC%EB%A7%88/
- AJD Interior. "인테리어 하자보수기간 이것만 알아도 피해 안봅니다." 2026. https://www.ajd.co.kr/contents/basic-tip/detail/%EC%9D%B8%ED%85%8C%EB%A6%AC%EC%96%B4_%ED%95%98%EC%9E%90%EB%B3%B4%EC%88%98%EA%B8%B0%EA%B0%84_%EC%9D%B4%EA%B2%83%EB%A7%8C_%EC%95%8C%EC%95%84%EB%8F%84_%ED%94%BC%ED%95%B4_%EC%95%88%EB%B4%85%EB%8B%88%EB%8B%A4-60029
- Korea Ministry of Government Legislation (찾기쉬운 생활법령정보 / Easy Law). "인테리어업자의 하자담보책임." 2026. https://www.easylaw.go.kr/CSP/OnhunqueansInfoRetrieve.laf?onhunqnaAstSeq=91&onhunqueSeq=5064
- Economist (이코노미스트). "하자 불안한 인테리어 시공, 오늘의집 통하면 '안심'." June 2023. https://economist.co.kr/article/view/ecn202306230017
- Seoul Economic Daily (서울경제). "오늘의집, 인테리어 피해 예방 위해 '오늘의집 시공책임보장' 도입한다." 2023. https://www.sedaily.com/article/13706260
- ohstory (오늘의집 공식 매거진). "오늘의집이 인테리어 고객을 위해 '시공책임보장'을 만든 이유." 2023. https://ohstory.io/featured/8193
- Seoul Economic Daily (서울경제). "누적 다운로드 2,000만건 돌파…인테리어 앱 '오늘의집'." 2021. https://www.sedaily.com/NewsVIew/22Q831RBVV
- Soomgo (숨고). "아파트 인테리어 견적비교." 2026. https://soomgo.com/hire/%EC%95%84%ED%8C%8C%ED%8A%B8-%EC%9D%B8%ED%85%8C%EB%A6%AC%EC%96%B4
-- The Self Interior Team