HDB 101: The Complete Guide to Singapore Public Housing
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Public housing is how most people in Singapore actually buy their first home, but the rules — eligibility schemes, grants, the Minimum Occupation Period, EIP quotas — change often enough that yesterday's WhatsApp forward can be wrong today. This guide pulls together how HDB flats actually work, buying to selling, sourced and dated so you know exactly how current each figure is.
Researched and fact-checked against HDB, CPF Board and MND sources as of 27 September 2026. Where a figure could only be confirmed from a secondary source, or where hdb.gov.sg's own page is too interactive to quote directly, that's flagged inline — always confirm exact figures on the HDB website or HDB Flat Portal before you commit to anything.
1. What is HDB, and how big a deal is it?
The Housing & Development Board (HDB) is the statutory board that builds, sells and manages Singapore's public housing. It's not a niche option — the large majority of Singapore residents live in an HDB flat, and homeownership among them is very high by global standards.
As of 31 March 2025, there were 1,153,080 HDB dwelling units in use across 10,757 blocks.
Source: HDB key statistics, via housingmap.sg. The precise current "% of residents in HDB flats" figure changes gradually year to year — treat the historical ~80% ballpark as directional, not exact.
2. Ways to buy an HDB flat
BTO (Build-To-Order)
New flats built to order and launched in regular sales exercises. You apply during a launch window and flats are allocated by ballot. BTO flats are priced with a subsidy relative to comparable resale flats, and typically involve a multi-year wait for construction to complete — commonly discussed as roughly 3–5 years from application to key collection, though HDB doesn't publish one fixed number since it varies by project.
Sale of Balance Flats (SBF)
Unsold or returned BTO flats and surplus units, offered in periodic SBF exercises — generally a shorter wait than BTO since many units are completed or close to it. Eligibility broadly follows the same framework as BTO.
Open Booking of Flats
A mode of sale for flats remaining after SBF exercises, generally offered on a first-come basis rather than balloted.
Resale flats
Existing flats bought directly from a current owner, on the open market. No balloting and no waiting for construction — but income ceilings, grants and quotas differ from BTO (see below). See the full step-by-step in section 7, and browse real cached resale transaction data on our own HDB Resale Prices tool.
Executive Condominiums (adjacent, not HDB)
ECs are built and sold like private condos by private developers, but under HDB-style eligibility and income-ceiling rules at the point of purchase (income ceiling $18,000/month for new EC projects with land-sale tenders closing on or after 24 August 2026; $16,000 for earlier projects). ECs have a 5-year MOP and become fully private property after 10 years. They are not HDB flats and aren't administered by HDB the way flats above are — mentioned here only for context.
Sources: hdb.gov.sg (BTO/SBF/Open Booking process overview — page structure confirmed, exact waiting-time figures not officially published); EC/BTO income ceiling change per littlebigreddot.com and propertynet.sg, effective 24 Aug 2026.
3. Eligibility schemes — who can apply together
HDB flats aren't sold to individuals in isolation — you apply under a scheme that defines who you're allowed to buy with:
- Public Scheme — the standard scheme for a family nucleus (spouses, parents, children, siblings) buying together.
- Fiancé/Fiancée Scheme — an engaged couple can jointly book a flat before marriage, with marriage required to be registered within a stipulated period after key collection.
- Orphans Scheme — unmarried orphaned siblings (below 21, or in full-time education) can apply together as a family unit.
- Joint Singles Scheme — 2 to 4 unmarried Singapore Citizens/PRs aged 35+ can apply together.
- Non-Citizen Spouse Scheme — a Singapore Citizen can apply with a non-citizen spouse, subject to different grant treatment than an all-citizen household.
- Multi-Generation Priority Scheme — for households applying for a BTO flat near parents' or a married child's household, often with a priority ballot allocation.
- Single Singapore Citizen Scheme — a single, unmarried Singapore Citizen aged 35+ can buy a resale flat (2-Room Flexi and up) alone.
See income ceilings by scheme (updated for the 24 Aug 2026 change)
| Scheme / flat type | Monthly household income ceiling |
|---|---|
| BTO / SBF — families | $16,000 |
| BTO — 2-Room Flexi, singles 35+ | $8,000 |
| Joint Singles Scheme | $16,000 |
| Multi-Generation / extended family | $21,000 |
| Executive Condominium (new, tenders closing on/after 24 Aug 2026) | $18,000 |
| Resale flats — standard (non-Plus/Prime) | No income ceiling |
| Resale flats — Plus/Prime tier | $16,000 families / $8,000 singles (moves with the base ceiling — verify the exact figure for your specific flat before committing) |
| HDB concessionary loan | $16,000 (families) / $8,000 (singles) |
Sources: littlebigreddot.com and propertynet.sg (income-ceiling change effective 24 Aug 2026 — Plus/Prime resale figure is our best estimate that it tracks the base ceiling; please verify the specific figure on hdb.gov.sg for your flat before relying on it).
4. Ethnic Integration Policy (EIP) & SPR quota
EIP sets maximum ethnic-group proportions per HDB block and neighbourhood, to maintain a mix and avoid enclaves. The SPR quota similarly caps the share of flats owned by Singapore Permanent Resident (non-citizen) households.
How it affects you as a buyer: a resale purchase can only proceed if it won't push the block or neighbourhood over the quota for your ethnic group (or SPR status). Check before you make an offer — if you fail the check after paying an option fee, that deposit can be at risk.
How it affects you as a seller: if a block has hit its quota for your own ethnic group, you can only sell to buyers of the same group — this can shrink your buyer pool and put pressure on price or time-to-sell in some blocks. HDB has an assistance process for owners genuinely unable to sell because of this.
5. Financing: loans, grants and CPF
HDB Loan vs Bank Loan
Compare HDB Loan vs Bank Loan
| HDB Loan | Bank Loan | |
|---|---|---|
| Interest rate | 2.6% p.a. (fixed, pegged to CPF OA rate + 0.1%) | Varies by bank, usually floating/pegged to SORA |
| Loan-to-Value (LTV) | Up to 75% | Up to 75% |
| Minimum downpayment | 25% — can be fully CPF and/or cash | 25% — at least 5% must be cash |
| CPF Ordinary Account use | Must use available OA first; can keep up to $20,000 in OA | Can retain any amount of OA |
| Lock-in period | None, no early-repayment penalty | Typically 1-3 years, with an early-exit penalty (often ~1.5%) |
Source: CPF Board, "HDB loan or bank loan? 3 differences you should know" (cpf.gov.sg). Interest rate current for the quarter 1 Jul – 30 Sep 2026 (CPF OA rate holding at 2.5%, unchanged) — CPF interest rates are reviewed quarterly, so re-check before relying on this for a specific transaction.
Want to run your own numbers? Our Mortgage Calculator pulls in a live reference rate rather than a hardcoded one.
CPF Housing Grants for resale flats
See current grant amounts
| Grant | Amount | Income ceiling |
|---|---|---|
| Family Grant | $80,000 (2-4 room) / $50,000 (5-room+) | $14,000 ($21,000 extended family) |
| Enhanced CPF Housing Grant (EHG) — families | Up to $120,000 (tiered by income; higher income = lower grant) | $9,000 ($4,500 if one applicant is a 2nd-timer) |
| Enhanced CPF Housing Grant (EHG) — singles | Up to $60,000 (tiered by income) | $4,500 ($9,000 buying with parents/another single) |
| Proximity Housing Grant (PHG) — families | $30,000 (living together) / $20,000 (within 4km) | None |
| Proximity Housing Grant (PHG) — singles | $15,000 (living together) / $10,000 (within 4km) | None |
| Single Singapore Citizen Grant | $40,000 (2-4 room) / $25,000 (5-room+) | $8,000 (Single Citizen Scheme) / $16,000 (Joint Singles) |
| Half-Housing Grant (2nd-timer single) | $40,000 (2-4 room) / $25,000 (5-room+) | $14,000 ($21,000 extended family) |
These grants can stack — a couple who qualifies for Family Grant + EHG + PHG together could realistically be looking at well over $150,000 in combined grants, depending on income and where they're buying relative to parents.
EHG and PHG figures: CPF Board, "A guide to the Enhanced CPF Housing Grant and Proximity Grant" (cpf.gov.sg, page updated 25 Mar 2026 — treat as the current, authoritative figures over any article quoting $80,000/$40,000 EHG, which is the older pre-enhancement amount). Family Grant, Single Singapore Citizen Grant and Half-Housing Grant figures are from secondary sources and haven't been independently confirmed against a current hdb.gov.sg page in this pass — please verify these three specifically before quoting them to a client. Income ceilings for the Single Singapore Citizen/Joint Singles schemes updated here to $8,000/$16,000 to reflect the 24 Aug 2026 change.
How much CPF you can actually use
CPF caps how much Ordinary Account savings can go toward a home, to protect retirement adequacy. The core rule: your maximum CPF withdrawal is generally the lower of the purchase price or valuation at the time of purchase — provided the remaining lease covers the youngest owner to age 95. If it doesn't, the withdrawal is capped at a lease-coverage-scaled percentage instead. Members aged 55+ buying a 3-room-or-smaller flat may also tap excess Retirement Account funds above their Basic Retirement Sum.
Source: CPF Board, "How much CPF savings you can use for your home purchase" (cpf.gov.sg).
Work out your own numbers with our Affordability Calculator and Stamp Duty Calculator. (Note: BSD/ABSD apply to HDB purchases too, not just private property.)
6. Minimum Occupation Period (MOP)
MOP is the period you must physically live in your flat before you're allowed to sell it on the open market, rent out the whole flat, or buy private residential property. For BTO/new flats it runs 5 years from key collection; for resale flats bought with a housing grant on or after 30 August 2010, it's also 5 years from the date the resale completes.
MOP requires actual physical occupation — time spent not living in the flat doesn't count, and construction/waiting time for a BTO doesn't count toward it either. Renting out individual bedrooms while you continue living there yourself is allowed before MOP is up (subject to normal subletting approval); renting out the whole flat is not.
HDB does review case-by-case exceptions — for example bankruptcy, divorce, death or disability of the sole breadwinner, or terminal illness.
Source: this is one of the most stable, widely and consistently reported HDB rules and hasn't changed in years — but hdb.gov.sg's own "Conditions After Buying" page is interactive/JS-rendered and couldn't be quoted directly in this research pass, so please do a final spot-check on hdb.gov.sg before publishing this for a specific client situation.
7. Buying a resale flat: the process, step by step
- Register your intent to sell / buy on the HDB Resale Portal (part of the HDB Flat Portal).
- Get an HDB Flat Eligibility (HFE) letter first — this confirms your eligibility and loan eligibility before you start house-hunting, and you'll need it even if you're applying for a bank loan instead of an HDB loan.
- View flats and check the EIP/SPR quota for any block you're seriously considering (see section 4) — do this before you commit to anything, not after.
- Option to Purchase (OTP) — the seller grants you an OTP in exchange for an option fee; you then exercise the OTP (paying an exercise fee) within the agreed option period.
- Submit the resale application within 7 calendar days of exercising the OTP — miss this and the application is cancelled with no refund. Both buyer and seller submit together and each pay an administrative fee; you'll need to declare any private-property interests, ownership shares, and bankruptcy status.
- HDB reviews and approves the application while you finalise financing and CPF arrangements.
- Completion — the transaction completes and you get your keys.
Source: hdb.gov.sg's resale application process page confirms the 7-day submission deadline directly; the rest of the sequence is reconstructed from HDB's published process outline and general resale-portal flow.
8. Selling, downsizing and upgrading
Resale Levy
This only applies if your household has already received one housing subsidy and is buying ANOTHER subsidised flat (a second new HDB flat or EC bought directly from a developer with a subsidy) — it is not triggered just by selling your first flat, and not triggered by later buying on the resale market or buying private property.
See resale levy amounts by flat type
| Flat type | Family-basis levy | Singles-grant-basis levy |
|---|---|---|
| 2-Room / 2-Room Flexi | $15,000 | $7,500 |
| 3-Room | $30,000 | $15,000 |
| 4-Room | $40,000 | $20,000 |
| 5-Room | $45,000 | $22,500 |
| Executive | $50,000 | $25,000 |
| Executive Condominium | $55,000 | $27,500 |
Paid in cash or from sale proceeds only — never via CPF or a housing loan. These figures apply to first subsidised flats sold on or after 3 March 2006 and have been stable for years, but confirm on hdb.gov.sg before quoting to a client.
Lease Buyback Scheme (LBS) & Silver Housing Bonus (SHB)
Two schemes that help older owners unlock cash from their flat for retirement, without moving out entirely (LBS) or by right-sizing to a smaller flat (SHB). Both require at least one owner aged 55+ (LBS: 65+), a household income ceiling, and MOP to be met.
- Lease Buyback Scheme: HDB buys back the "tail end" of your lease while you keep living there under a shorter lease. Bonus of up to $30,000 (3-room or smaller) down to $7,500 (5-room+), on top of the lease-buyback proceeds.
- Silver Housing Bonus: for owners who right-size to a 3-room-or-smaller flat. Base bonus up to $30,000, plus a further $10,000 for downsizing to 2-room or smaller — up to $40,000 total per household.
Sources: hdb.gov.sg confirms both schemes exist and their general structure, but the specific dollar figures above are from secondary sources (DiveDeals SG) — verify against hdb.gov.sg's own Lease Buyback / Silver Housing Bonus pages or SupportGoWhere before quoting.
Home Improvement Programme (HIP / HIP II) & EASE
HIP covers essential repairs (fully government-funded — spalling concrete, plumbing, electrical upgrades), optional upgrades (subsidised — toilets, entrance doors, refuse chutes), and EASE improvements for seniors, all bundled into one programme for flats built up to 1997. A block only proceeds if at least 75% of eligible Singapore Citizen households vote in favour.
EASE itself is also available on its own, outside HIP, for any household with a member aged 65+ (or 60-64 needing help with daily activities) — grab bars, ramps, slip-resistant flooring and similar, heavily subsidised (households commonly pay well under $100 for the full package, sometimes fully funded for rental-flat seniors).
Source: hdb.gov.sg's HIP and EASE pages loaded successfully with full detail in this research pass — higher confidence than most other sections here.
VERS and SERS — redevelopment, not the same thing
The Selective En-bloc Redevelopment Scheme (SERS) is real and has ongoing sites — HDB selects specific older blocks for redevelopment and offers owners a replacement flat plus compensation.
Source: Ministry of National Development, official parliamentary answer on VERS (mnd.gov.sg).
9. Renting: subletting your flat, or renting one
Subletting rules for flat owners
You must have satisfied the 5-year MOP before renting out your flat, whether the whole unit or just a bedroom. Whole-flat rental just needs a self-service eligibility confirmation on My HDBPage — no separate application. Bedroom rental needs HDB approval before the tenancy starts, a $9 admin fee per application, and any changes reported within 7 days.
See occupancy caps by flat size
| Flat size | Whole-flat max tenants | Bedroom rental |
|---|---|---|
| 1-2 Room | 4 | Not allowed |
| 3-Room | 6 | Max 1 bedroom, 8 total occupants |
| 4-Room and larger | 8 (reverts to 6 after 31 Dec 2028) | Max 2 bedrooms, 8 total occupants (reverts to 6 after 31 Dec 2028) |
The higher caps for larger flats are a temporary, transitional measure — worth flagging to any client planning around this beyond 2028.
Source: hdb.gov.sg, "Eligibility for Renting Out a Flat" — loaded with full detail in this research pass.
Public Rental Scheme
For Singapore Citizen households with no family support or other viable housing options — assessed holistically rather than against one fixed income ceiling. Only 1-room and 2-room flats are available under this scheme, with rent scaled to household income.
Parenthood Provisional Housing Scheme (PPHS)
Interim rental for Singapore Citizen families/couples waiting for a booked BTO or SBF flat to complete — up to 3 years, combined household income capped at $7,000/month, and no household member may currently own an HDB flat. A newer "PPHS (Open Market) Voucher" variant, launched 1 July 2024, lets eligible families use a voucher to rent on the open market instead of an HDB-allocated unit.
Sources: Public Rental Scheme via DollarsAndSense.sg (secondary — hdb.gov.sg's own eligibility page didn't render usable content in this pass); PPHS via PropertyGuru (secondary, same reason) plus an hdb.gov.sg press-release title confirming the Open Market Voucher variant exists. Recommend a follow-up check directly on hdb.gov.sg for both before quoting exact figures.
10. Other current programmes worth knowing
Fresh Start Housing Scheme
Helps families with young children currently living in public rental flats buy their own home. The grant was enhanced from $50,000 to $75,000 ($60,000 upfront to CPF OA before key collection, $15,000 over 5 years after), effective from the July 2025 BTO exercise, with first-timer families (previously excluded) eligible to apply from April 2025. In practice, most first-timer families with children come out ahead using the Enhanced CPF Housing Grant instead — Fresh Start is really aimed at second-timer, public-rental-tenant households.
Source: Mothership.sg news report on the official MND/HDB announcement (secondary but reliable) — this is a fast-moving scheme, recommend re-checking hdb.gov.sg for any update since March 2025.
Green Towns Programme
A 10-year sustainability plan (through 2030) targeting a further 15% cut in HDB towns' energy use, on top of a 10% reduction already achieved since 2005 — solar panels, smart LED lighting, rainwater harvesting for non-potable use, "cool paint" pilots (reported up to 2°C cooler), and rooftop greenery/urban farming.
Source: Ministry of National Development, "HDB Green Towns Programme" (mnd.gov.sg).
The HDB Flat Portal & My HDBPage
Almost everything above — BTO/SBF applications, resale registration, HFE letters, subletting confirmations — now runs through HDB's unified digital front-end, the HDB Flat Portal, with My HDBPage as the self-service account area for existing owners. If a client is confused about where to actually do any of this, that's the starting point.
Next steps
This guide is for general orientation, not financial, legal or tax advice. HDB rules change — sometimes with little notice, as the 24 August 2026 income-ceiling change shows — so always confirm exact eligibility, grant amounts and quotas with HDB, CPF Board or a qualified professional before making a decision.