HDB Flat Types Singapore 2026: From 2-Room Flexi to 3Gen — What Each Type Offers and Who Can Buy

Disclaimer (Block 1): This article is for educational purposes only and is intended to assist CEA-registered property agents in understanding regulatory frameworks. It does not constitute financial, tax, or legal advice. LEVR's calculations are indicative only. Always verify rates and eligibility with your bank, HDB, CPF Board, or a licensed financial advisor before advising clients.

HDB Flat Types: A Quick Reference

HDB currently offers the following standard flat types for sale via BTO and the resale market. Each type has different size profiles, target buyer groups, and eligibility conditions.

2-Room Flexi

The 2-Room Flexi is HDB’s smallest current flat type, designed primarily for:

• Single Singapore Citizens aged 35 and above applying under the Single Singapore Citizen (SSC) scheme
• Elderly households — couples where at least one person is aged 55 and above can apply for a short-lease 2-Room Flexi (15, 20, 25, or 30-year lease) scaled to their expected lifetime
• Lower-income families who qualify under the income ceiling of $7,000/month

The 2-Room Flexi comes in two lease variants: the standard 99-year lease and the short-lease option (for elderly applicants). Short-lease 2-Room Flexi flats have additional resale restrictions — they can only be sold back to HDB or to eligible buyers under the Silver Housing Bonus or specific HDB schemes.

Agent note for singles: Singles applying under the SSC scheme are currently limited to 2-Room Flexi flats in non-mature estates for BTO applications. They cannot ballot for larger flat types via BTO under the SSC scheme, regardless of income.

3-Room

3-Room flats offer two bedrooms and are suited to small families or couples who do not need the space of a 4-room flat. Key characteristics:

• Income ceiling of $7,000/month for BTO applications — the same cap as 2-Room Flexi
• Available in both mature and non-mature estates, but allocations in mature estates are limited and oversubscribed
• Resale 3-room flats have no income ceiling and are eligible for CPF housing grants (AHG, SHG, EHG) subject to grant income ceilings

A common misconception is that 3-room flats are always significantly cheaper than 4-room flats. In mature estate resale markets, older 3-room flats in prime locations can trade at prices that approach or exceed new 4-room BTO prices in non-mature estates.

4-Room (The Baseline Flat)

The 4-room flat is the most common HDB flat type and the baseline for most CEA agent advisory scenarios. It offers three bedrooms and a typical floor area of 90–95 sqm.

• Income ceiling for BTO: $14,000/month (couples and families)
• Eligible for all CPF housing grants (EHG, PHG, Step-Up CPF Housing Grant for second-timers) subject to household income
• Available in BTO exercises across mature and non-mature estates and as resale flats on the open market
• Most HDB resale transactions in Singapore involve 4-room flats

For affordability planning, 4-room BTO prices in non-mature estates typically range from $350,000–$550,000. In mature estates and PLH projects, prices can exceed $600,000–$800,000 for new BTO flats.

5-Room and 3Gen

5-Room

5-Room flats are the largest standard HDB flat type currently built for new BTO supply. They offer three bedrooms with a larger living and dining area compared to 4-room flats, and some configurations include a separate study or utility room.

• Income ceiling for BTO: $14,000/month (same as 4-room)
• Floor area: approximately 110–115 sqm for new BTO units
• 5-room resale prices in mature estates regularly exceed $800,000– $1,000,000 in high-demand locations

3Gen (Three-Generation Flat)

The 3Gen flat is a specialised HDB flat type designed for multi-generation families where grandparents and married children live together. Key features:

• Four bedrooms including an en-suite bedroom for the elderly generation
• Eligibility requires a multi-generation family nucleus — typically a married couple applying with the parents of one spouse
• Resale restrictions: 3Gen flats can only be sold to eligible multi-generation families (they cannot be sold to single-generation households on the resale market)
• Not available in all BTO projects — supply is limited and typically included in larger BTO launches

Agent note: The resale restriction on 3Gen flats is a significant consideration. Buyers who may not qualify as a multi-generation household in the future (e.g., if parents move out or pass away) should understand that their resale buyer pool is narrower than for a standard 4-room or 5-room flat.

Prime Location Public Housing (PLH)

PLH is not a separate flat type but a classification that applies to selected BTO projects in central or highly sought-after locations. PLH flats come with additional restrictions compared to standard HDB flats:

• 10-year MOP: PLH flats have a 10-year Minimum Occupation Period, compared to 5 years for standard HDB flats
• Subsidy clawback on first resale: When a PLH flat is first sold on the resale market, HDB claws back a portion of the subsidy granted at the point of BTO purchase
• No subletting of whole flat: PLH flat owners cannot sublet the entire flat even after the MOP; only room subletting is permitted
• Income ceiling: Same as standard flats of the same type ($14,000 for 4-room and larger PLH flats)

PLH flats appeal to buyers who value the location above the additional restrictions. However, CEA agents must clearly brief clients on the 10-year MOP and subsidy clawback before the BTO application, as these significantly affect the economics of a PLH purchase compared to a standard BTO in a non-mature estate.

Executive Flats and Maisonettes (Resale Only)

HDB built Executive Flats and Executive Maisonettes in the 1980s and 1990s. These flat types are no longer constructed and are only available on the resale market. They are larger than current 5-room flats:

• Executive Flat: Approximately 130 sqm, single-level, typically 3 bedrooms plus a large living area
• Executive Maisonette: Approximately 140–150 sqm, duplex layout spanning two levels

There is no income ceiling for purchasing Executive Flats or Maisonettes on the resale market. However, CPF housing grants (EHG) are not available for these flat types as they are treated as large flats that fall outside grant eligibility parameters.

The ageing lease of many Executive Flats and Maisonettes (many built in the 1980s now have fewer than 70 years of remaining lease) raises questions about CPF usability and bank loan LTV limits — factors CEA agents must check before advising clients on these purchases.

Advising Clients on Flat Type Selection

The flat type decision is primarily driven by four factors:

1. Household income vs income ceiling: Households above $7,000/month cannot purchase 2-room Flexi or 3-room BTO flats. Households above $14,000/month cannot purchase BTO flats at all (only resale or EC).
2. Household size and composition: Families with children typically require at least a 4-room flat. Multi-generation households should evaluate the 3Gen option carefully, noting the resale restriction.
3. Budget: The jump from 4-room to 5-room in a BTO launch can be $50,000–$100,000 in purchase price — a meaningful difference in total loan cost and monthly repayment.
4. Long-term liquidity: PLH flats and 3Gen flats have restricted resale buyer pools. Clients who may need to sell within 10–15 years should weight this carefully.

Disclaimer (Block 3): LEVR's calculator outputs are estimates based on inputs provided and current regulatory parameters as known at time of publication. They are not a guarantee of borrowing capacity, stamp duty liability, or CPF eligibility. Regulatory thresholds and rates may change. Always verify with IRAS, your bank, or a licensed financial advisor before making financial decisions.