Dual-Key Condos in KL: How to Live in One Unit and Rent the Other

Dual-key is the layout I am asked about most by buyers who want the numbers to work both ways: own a home, and let the property itself contribute to the monthly payment. A dual-key unit is a single apartment on a single title that is designed as two independent living quarters, each with its own entrance, so an owner can live in one side and rent the other — or rent both sides and treat the whole thing as an income asset. In Kuala Lumpur the format has moved from a niche product into a mainstream choice for owner-investors, and the project currently anchoring the conversation is Golden Crown Residence @ TRX, a 490-unit tower on Jalan Tun Razak a one-minute walk from the TRX MRT interchange, priced from RM1,280,000. This guide explains what the layout actually gives you, what running the second tenancy involves, and the dual-key alternatives across KLCC and Cheras worth comparing before you book.

What a dual-key layout actually is

A dual-key unit is two self-contained living spaces inside one apartment, sharing a single title. The most common configuration splits a larger floor plan into a main suite of one or two bedrooms and a smaller self-contained wing with its own entrance, so each side can be occupied and locked independently. Because the two halves sit under one title, the purchase is a single Sale and Purchase Agreement, a single loan and a single maintenance account — but the space behaves like two assets. That combination is what makes the format attractive to owner-investors: it is the closest most buyers can get to owning a home and an investment property in one purchase, without the stamp duty, legal costs and financing of a second transaction.

How the second tenancy works in practice

The second tenancy runs much like renting out any property, with one practical difference: the tenant occupies a wing of your own home rather than a separate address. That makes the separate entrance the most important detail on the floor plan, because it is what gives both sides genuine privacy, separate locks and independent daily routines. The rental side still needs the full landlord basics — a tenancy agreement, a security deposit, a documented condition inventory and agreed utilities split — and the income it produces is one of the clearest ways to offset a mortgage, because the rent on the smaller wing is pure contribution against the one loan you carry. The discipline that separates successful dual-key owners from disappointed ones is simple: treat the rented side as a real tenancy, with real paperwork, rather than as an informal arrangement with whoever happens to be around.

Golden Crown Residence @ TRX: the anchor example

Golden Crown Residence @ TRX is the project that makes the dual-key case in the TRX corridor. Developed by Multibay Development Sdn Bhd under the Golden Eagle Group, it is a leasehold tower on Jalan Tun Razak beside Tun Razak Exchange, holding 490 units across five layout types from 624 to 1,023 sq ft, with a 99-year lease running to February 2111 and completion slated for August 2028. The entry price starts at RM1,280,000, and the layout that matters for this conversation is the top of the range: the Type C dual-key, a two-bedroom, two-bathroom configuration of 1,023 sq ft priced at RM2,179,000, which splits into two lettable quarters under one title. The location does the rest of the work — the TRX MRT interchange is a one-minute walk, with The Exchange TRX, HSBC, TREC KL and the Royal Selangor Golf Club close by — and the rooftop sky infinity pool, wading pool, gym, library and multipurpose hall give the building the amenity package that keeps both sides lettable.

CentriX The Station KLCC: dual-key above Dang Wangi LRT

For buyers who want the dual-key structure closer to the KLCC core, CentriX The Station is the transit-oriented alternative: a 47-storey serviced residence built directly above Dang Wangi LRT Station on Jalan Ampang, with 857 units across 37 layout types and dual-key configurations in the mix. Entry pricing starts from RM907,800, while the Type S6 dual-key — a two-bedroom, two-bathroom layout of 1,039 sq ft — is priced at RM1,689,800. The building sits two LRT stops from KLCC and three from KL Sentral, which is exactly the connectivity an owner-investor wants when the rented wing depends on a steady pool of tenants. As a leasehold project completing in 2029 with a maintenance fee quoted at RM0.44 per sq ft, it also illustrates a point worth carrying into every comparison: the dual-key idea is available at different price tiers, and the entry price, tenure and timeline should be weighed together, not just the layout.

Alderwood Residence, Cheras: dual-key at a lower entry price

The third rung of the comparison is Cheras, where Alderwood Residence brings dual-key living to a lower price point. It is a low-density leasehold serviced residence of just 186 units on Jalan Lombong in Taman Maluri, with dual-key layouts starting from 604 sq ft and pricing from RM677,000, making it the most accessible entry into the format among the three projects. The practical appeal sits in the details: a covered link bridge to Sunway Velocity Mall about a minute away, a 450-metre walk to MRT Maluri, and completion scheduled for Q2 2029. For a first-time owner-investor who wants the live-in-one-rent-the-other structure but is not ready for a TRX or KLCC entry price, this is the project that makes the concept affordable — and it is a reminder that dual-key is a structure available across the market, from RM677,000 in Cheras to RM2,179,000 beside TRX.

Who a dual-key purchase suits

The format fits three profiles best. First, the owner-investor who wants to live in a well-located home while a tenant on the other side offsets the mortgage — the classic live-in-one-rent-the-other buyer this topic is written for. Second, the investor who wants two rental streams from one purchase: one title, one maintenance account and one loan, but two tenancies, which can produce better total rent than a single larger unit at the same price. Third, the family that wants a home plus a private suite for parents, grown children or a helper, with the flexibility to close the internal door and restore one large residence later. It suits buyers who can act as landlord to a tenant living a few metres away; it suits people less well if they want a conventional single-family home with no management duties, because the second wing is only an asset if it is actually tenanted and maintained.

The checks before you book a dual-key unit

Because the layout is the whole point, the due diligence should be proportionately careful. First, ask for the actual floor plan and confirm the two entrances are genuinely separate, the internal door between the wings locks properly, and each side has the essentials — its own bathroom and kitchen provisions — because a dual-key label on a brochure does not always survive contact with the real layout. Second, compare price per sq ft against the other dual-key options and completed resales in the same district, since Golden Crown, CentriX and Alderwood span very different per-square-foot economics. Third, confirm the letting rules that apply to the building and the title category before you count on a particular rental model, and check the maintenance fee and sinking fund, because the monthly carry is the same whether one side or both sides are rented. And fourth, review the tenure and completion timeline with your banker and lawyer before paying a booking fee, so the financing and the handover date match your plan.

A dual-key condo is one of the more honest ways to make a single Kuala Lumpur purchase work as both a home and an income asset. Whether your entry point is the RM2,179,000 dual-key Type C at Golden Crown Residence @ TRX, a dual-key unit above Dang Wangi LRT at CentriX The Station, or the RM677,000 starting price at Alderwood Residence in Cheras, the structure is the same: one title, two living quarters, and a tenant who helps carry the mortgage while you live in the other side. I help owner-investors compare dual-key projects across Kuala Lumpur and Selangor, check the floor plans and the real per-square-foot numbers, and work out what the second tenancy will actually rent for. Message me your budget, your preferred area and whether you plan to live in one side or rent both, and I will shortlist the dual-key units worth your time.