District 5's Clementi–Dover belt pairs strong primary schools — Clementi Primary, Pei Tong Primary, and Nan Hua Primary — with the selective NUS High School of Mathematics and Science and ACS (International), all accessible via East-West Line MRT, at PSF levels 25–35% below the Bukit Timah school corridor (as of 2026-06).
For Singapore families, school proximity is not a preference — it is a registration mechanic. Under the MOE Primary 1 Registration Framework, children living within 1 km of their chosen school receive Phase 2C priority over all applicants in the 1–2 km band when a school is oversubscribed. In the Clementi–Dover corridor, that 1 km boundary separates near-certain enrolment from a stressful ballot, and it has been quietly shaping property demand in District 5 for years. The good news for buyers is that quality and value coexist here: Clementi Primary, Pei Tong Primary, and Nan Hua Primary are among the most sought-after government primaries in the west, NUS High attracts Singapore's most mathematically gifted students, and ACS (International) on Dover Road serves the international and returning expatriate community — yet the median resale PSF in D5 remains meaningfully lower than in Districts 10 and 11. This guide explains the enrolment mechanics, profiles the zone's key schools, maps the residential options, and gives families a practical route to buying within the critical 1 km band.
How the MOE 1 km Priority Works — and Why It Matters Here
Singapore's P1 registration runs across six phases. By the time Phase 2C opens — the phase available to most families without alumni, volunteer, or employer ties — popular schools in Clementi have already filled a large share of their cohort. In 2025, Clementi Primary was significantly oversubscribed in Phase 2C, meaning the 1 km priority was effectively the deciding variable. Pei Tong Primary on West Coast Road and Nan Hua Primary on Clementi Avenue 4 follow the same pattern. The MOE Registration Phases and Criteria page sets out the full priority ladder; families should read it before shortlisting a property, not after.
Distance is measured from the postal address of the home to the school gate, not from a condominium lobby. For properties close to the 1 km boundary, the difference between a unit on the school-facing side of a development versus the far side can occasionally matter — buyers in borderline situations should verify with OneMap before committing. The commute-time map provides a quick visual check across the D5 zone.
Nan Hua Primary is additionally a SAP (Special Assistance Plan) school, offering Higher Chinese as a first language. SAP status increases its popularity among Chinese-speaking families and adds a separate layer of Phase 2C competition. Families without the Higher Chinese pathway should weigh whether Nan Hua's specific programme fits their child's needs before making it a primary target.
The Schools in the Clementi–Dover Zone
Clementi Primary School (Clementi Avenue 1) is the zone's most-demanded primary. Its central location within the Clementi HDB precinct means the 1 km radius covers a large residential catchment including parts of Clavon and several HDB blocks along Clementi Avenue 1 and Clementi Road. The school has produced consistent PSLE results and benefits from the academic culture that NUS's proximity brings to the neighbourhood.
Pei Tong Primary School (West Coast Road) serves the West Coast and Clementi West precincts. Families in Parc Clematis, The Trilinq, and West Coast developments typically fall within its 1 km zone. Pei Tong is popular with families in the private housing belt along West Coast Road and has been consistently oversubscribed in recent balloting cycles.
Nan Hua Primary School (Clementi Avenue 4) draws significant demand owing to its SAP status and long-standing reputation. Residential developments near Nan Hua Gardens and along Clementi Avenue 4 sit within the 1 km band. As with Clementi Primary, the 2 km band provides little practical advantage when Phase 2C is oversubscribed — families should target the inner ring.
New Town Primary School (Commonwealth Avenue West) offers a useful secondary option for families near Clavon, given that development's location places it within 1 km of both Clementi Primary and New Town Primary simultaneously. This dual-coverage is uncommon and provides a meaningful fallback if balloting at the first-choice school is unsuccessful.
NUS High School of Mathematics and Science is a six-year through-school (Years 1–6) offering a specialised programme in mathematics and science. Entry is by aptitude assessment and is highly selective — admissions are not distance-based. The school sits on the NUS campus perimeter and is accessible by MRT from Clementi station. Families targeting NUS High should focus on academic preparation rather than proximity, though living in D5 does provide convenient access once a child is enrolled.
ACS (International) on Dover Road offers the International Baccalaureate curriculum and is part of the Anglo-Chinese Schools family. It primarily serves returning Singaporeans, permanent residents, and international families. Admissions are merit and interview based; proximity plays no role. Dover MRT, one stop east of Clementi on the East-West Line, is the nearest station. UWCSEA Dover campus is located in the adjacent Dover area and serves a similar international demographic, with its own admissions process entirely independent of MOE distance phases.
The Clementi–Dover corridor in District 5 is one of Singapore's most education-dense neighbourhoods, anchored by the National University of Singapore and flanked by a cluster of highly regarded primary and secondary schools. Families who buy here gain walkable access to schools that consistently rank among the island's best, along with the mature-town conveniences of Clementi Mall, multiple hawker centres, and excellent MRT connectivity on the East-West Line.
This guide maps the key schools in the corridor, analyses condominium options within 1 km of popular primaries, examines the price premium families pay for school proximity, and provides a worked purchase example for a family targeting Clementi Primary.
Overview — The Clementi–Dover Education Belt
District 5 spans Clementi, Dover, Pasir Panjang, and the western edge of Buona Vista. The National University of Singapore (NUS) occupies a vast campus at the southern end, creating a university-town atmosphere that spills into the surrounding residential precincts. NUS High School of Mathematics and Science — one of Singapore's most selective institutions — sits on the campus perimeter, while the broader Clementi area hosts primary schools with strong reputations built over decades.
The area has undergone significant renewal. Clavon and Parc Clematis, both completed in recent years, have added thousands of modern condominium units to a neighbourhood previously dominated by older walk-up apartments and HDB flats. Dover Parkview, an older but well-maintained development near Dover MRT, remains popular with families who prioritise proximity to the MRT and the one-north business park.
For families, the corridor offers a rare combination: top-tier schools at every level — primary, secondary, junior college, and university — within a compact geography that a child could theoretically walk through from Primary 1 to a PhD. Property prices are elevated by Clementi standards but still trade 20–30% below comparable school-zone condominiums in Bukit Timah.
Key Schools in the Clementi–Dover Corridor
The density of quality schools in this corridor is exceptional. The table below highlights the institutions most relevant to families purchasing property in the area.
| School | Type | Nearest Condo Cluster | Notable Feature |
|---|---|---|---|
| NUS High School of Math & Science | Secondary / JC (6-year) | ~0.8 km from Dover Parkview | Singapore's only specialised independent school for math and science; national selection |
| Clementi Primary School | Primary | ~0.4 km from Clavon | Established neighbourhood school; strong PSLE track record; active parent volunteer network |
| Pei Tong Primary School | Primary | ~0.6 km from Parc Clematis | Well-regarded for bilingual education; strong applied learning programme |
| Anglo-Chinese School (International) | International / Secondary | ~1.2 km from Dover Parkview | IB curriculum; part of the ACS family of schools; Dover Road campus |
| New Town Primary School | Primary | ~0.5 km from Clavon | Near Clementi MRT; known for applied learning programmes in environmental science |
| Nan Hua Primary School | Primary (SAP) | ~1.0 km from Parc Clematis | SAP school; consistently high demand in balloting; affiliated to Nan Hua Secondary |
| Clementi Town Secondary School | Secondary | ~0.6 km from Clavon | Neighbourhood secondary with strong science and technology programmes |
Condominiums Near Top Schools
The Clementi–Dover corridor offers a mix of new-launch projects and established developments. Families should consider both proximity to target schools and access to MRT stations, as the two do not always overlap. The following condominiums are the primary options for school-focused buyers.
| Condominium | District | Median PSF (2025–26) | Tenure | Nearest School |
|---|---|---|---|---|
| Clavon | D5 | S$1,650 | 99-year | Clementi Primary (~0.4 km) |
| Parc Clematis | D5 | S$1,580 | 99-year | Pei Tong Primary (~0.6 km) |
| Dover Parkview | D5 | S$1,280 | Freehold | ACS (International) (~1.2 km) |
| The Clementi Canopy | D5 | S$1,450 | 99-year | Clementi Primary (~0.7 km) |
| Nan Hua Gardens | D5 | S$1,120 | Freehold | Nan Hua Primary (~0.5 km) |
Price Analysis — School Proximity Premium
The Clementi–Dover corridor commands a noticeable premium over District 5's overall median. As of early 2026, condominiums within 1 km of the corridor's top primary schools trade at a median of approximately S$1,520 PSF, compared with the broader District 5 average of around S$1,380. This 10% premium reflects the consistent demand from families prioritising school access.
Newer developments like Clavon and Parc Clematis have pushed the PSF ceiling higher — both launched above S$1,500 and have appreciated to the S$1,580–S$1,650 range in resale. Older freehold developments such as Dover Parkview and Nan Hua Gardens offer lower entry points in the S$1,100–S$1,300 range but come with dated facilities.
Compared with the Bukit Timah school corridor (D10–D11), where school-zone condos typically trade above S$2,000 PSF, Clementi offers savings of 25–35% while providing comparable school quality. This value proposition has made Clementi one of the most competitive school-zone markets in Singapore, with new launches routinely selling out family-sized units first.
Capital appreciation over the past five years has averaged 4–5% annually, outperforming the island-wide average. The combination of NUS-driven rental demand and school-proximity buying pressure creates a strong price floor.
Worked Example — Family Targeting Clementi Primary
Consider a Singaporean couple with a child entering Primary 1 in 2028. They want to live within 1 km of Clementi Primary School. Combined household income is S$16,000 per month with S$400,000 in CPF OA savings and S$120,000 cash.
Target property: Clavon, 3-bedroom unit (1,023 sqft) at S$1,650 PSF = approximately S$1,688,000.
| Cost Component | Amount |
|---|---|
| Purchase price | S$1,688,000 |
| Buyer's Stamp Duty (IRAS BSD ratesBSD) | ~S$54,000 |
| Legal fees | ~S$3,200 |
| Valuation fee | ~S$500 |
| Down payment (25%) | S$422,000 (min S$84,400 cash, rest CPF) |
| Loan amount (75% LTV) | S$1,266,000 |
| Monthly mortgage (3.5%, 25 years) | ~S$6,340 |
School commute: The walk from Clavon to Clementi Primary takes approximately 6 minutes along Clementi Avenue 1. The route is sheltered for most of the distance via HDB void deck linkways, and a pedestrian crossing with traffic lights manages the one road crossing required.
Use the Stamp Duty Calculator to verify BSD and the Mortgage Calculator to model different loan scenarios.
Primary School Registration & Distance Rules
MOE's primary school registration framework assigns priority based on straight-line distance from the child's registered address to the school. The critical thresholds are within 1 km and within 2 km.
Clementi specifics: Both Clementi Primary and Pei Tong Primary are consistently oversubscribed in Phase 2C. In 2025, Clementi Primary had significantly more applicants than Phase 2C places, making the 1 km priority essential. Families without alumni or community ties should not rely on the 2 km band.
SAP school consideration: Nan Hua Primary is a SAP school offering Higher Chinese as a first language. If your child will benefit from intensive Chinese-language education, this school provides an advantage not available at non-SAP primaries. However, SAP schools also tend to be more popular, increasing competition.
Move-in timing: Families should be living at their registered address at least six months before the July registration exercise. MOE conducts address verification and may reject applications where the family has not genuinely relocated.
School Transport & Commute
Clementi MRT (East-West Line) is the corridor's transport hub. From Clementi station, direct trains run to Buona Vista (one stop, 3 minutes), Jurong East (one stop west), and Raffles Place (25 minutes). Dover MRT, one stop east, serves families heading to the ACS International campus and one-north area.
For primary schools within the corridor, most families walk or cycle. Clementi's flat terrain and extensive sheltered walkways make walking practical even during monsoon season. School bus services are available but less commonly used for schools within 1 km — the short distance makes walking the default.
Families with children attending NUS High or ACS International may use the MRT or school bus services, as these campuses sit slightly further from the main residential cluster. Monthly school bus fees typically range from S$160 to S$250.
The area also benefits from extensive bus routes along Commonwealth Avenue West and Clementi Road, connecting to Holland Village, Queenstown, and the Jurong Lake District.
Family Lifestyle & Amenities
Clementi is a mature estate with comprehensive family infrastructure. Clementi Mall, integrated with the MRT station, houses a FairPrice Xtra supermarket, a public library branch, enrichment centres, and family dining options. The nearby 321 Clementi mall adds further retail depth.
Parks and recreation: Clementi Woods Park and West Coast Park are both within cycling distance. West Coast Park features one of Singapore's best public playgrounds, outdoor dining popular with families, and direct beach access. NUS campus grounds are open to the public and provide jogging and cycling paths through lush greenery.
Healthcare: National University Hospital (NUH) is located on the NUS campus, less than 10 minutes by car from most condominiums in the corridor. Multiple paediatric clinics operate along Clementi Avenue 2 and in Clementi Mall.
Enrichment: The university-town atmosphere supports a strong enrichment ecosystem. Tuition centres, music schools, and coding academies cluster around Clementi MRT. The NUS-affiliated programmes occasionally offer enrichment workshops open to the broader community.
Food: Clementi 448 Market and Food Centre and Clementi Avenue 3 Food Centre provide affordable hawker meals. The restaurant scene along Sunset Way offers family-friendly weekend dining in a leafy neighbourhood setting.
Frequently Asked Questions
How competitive is balloting for Clementi Primary School?
Very competitive. In recent years, Phase 2C has been consistently oversubscribed with applicants exceeding available places significantly. The 1 km distance priority is typically the deciding factor. Families in the 1–2 km band have a significantly lower chance of securing a place and should prepare backup school choices.
Is Dover Parkview still a good buy despite its age?
Dover Parkview offers freehold tenure and a lower PSF entry point (~S$1,280), making it attractive for budget-conscious families. The development is well-maintained with a functional pool and gym. However, unit layouts are less efficient than modern designs, and facilities are basic compared with Clavon or Parc Clematis. The freehold status provides long-term value protection.
What is the rental market like for family units near NUS?
Strong and diversified. NUS faculty, visiting researchers, and professional families working at one-north all compete for 3-bedroom units. Gross yields range from 3.3 to 3.8%, with Parc Clematis and Clavon commanding the highest absolute rents. Lease terms tend to be stable at 1–2 years with high renewal rates.
Are there international school options in the Clementi corridor?
ACS (International) on Dover Road is the main international school in the area, offering the IB curriculum. United World College of South East Asia (UWCSEA) Dover campus is located in the adjacent Dover area. Both are accessible within 10–15 minutes from Clementi condominiums. For other international schools, the Holland Village and Tanglin corridors are a short MRT ride away.
How does the Clementi corridor compare with Bukit Timah for schools?
Bukit Timah offers arguably the highest concentration of elite schools in Singapore, but at PSF premiums of 25–35% over Clementi. School quality in Clementi is strong — particularly with NUS High and the SAP schools — and the savings on property can be redirected to enrichment, savings, or a larger unit. Families who prioritise value for money without compromising on school access often find Clementi the better choice.
Property Landscape: What Families Are Actually Paying
District 5 spans Clementi, Dover, Pasir Panjang, and the western edge of Buona Vista. The District 5 analytics page shows median resale PSF for private condominiums in the S$1,280–S$1,520 range across the district (as of 2026-06), compared with S$1,800–S$2,400 in Districts 10 and 11 where Bukit Timah and Nanyang schools concentrate. Families who have done the Bukit Timah comparison often arrive at Clementi having accepted a pragmatic trade-off: the school quality differential is narrower than the price differential suggests.
Clavon (Clementi Avenue 1, leasehold 99 years, 640 units, completed 2024) launched above S$1,500 PSF and has traded in the S$1,580–S$1,650 band in recent resale transactions. Its location places it within 1 km of both Clementi Primary and New Town Primary — a genuine differentiator in D5's condominium landscape. Three- and four-bedroom units of 990–1,500 sq ft are the family-buyer preference; expect S$1.56M–S$2.47M at current PSF levels.
Parc Clematis (Jalan Lempeng, leasehold 99 years, 1,468 units, completed 2023) is one of the largest private developments in D5 and occupies a site closer to Pei Tong Primary and New Town Primary than to Clementi Primary. Its scale supports a broad price range — smaller 3-bedroom units have transacted around S$1.3M–S$1.5M, while larger premium units push beyond S$2M. Buyers targeting the Pei Tong 1 km zone should measure carefully from the specific stack they are considering, as the development's depth means outer stacks may fall outside the 1 km boundary.
The Trilinq (Clementi Avenue 6, leasehold 99 years, 755 units, completed 2016) sits near West Coast Road, convenient for Pei Tong Primary. Being older, it trades at a slight discount to the newer launches — typically S$1,250–S$1,450 PSF — which may appeal to families prioritising size over recency. The property comparison tool allows side-by-side analysis of PSF, yield, and transaction history for Clavon versus The Trilinq or other D5 developments.
Older freehold pockets along Dover Road and Clementi Road — developments like Dover Parkview and Nan Hua Gardens — offer lower entry points in the S$1,100–S$1,300 PSF range and sometimes freehold tenure. Trade-offs include dated facilities and smaller pools, and proximity to individual schools varies by unit. Freehold tenure has a long-run capital preservation advantage for buyers with a multi-decade horizon, and the affordability calculator helps model cash flow differences between a S$1.1M freehold older unit and a S$1.6M leasehold newer launch.
HDB as a transitional option: Clementi HDB flats — particularly the newer BTO estates along Clementi Avenue 3 and Commonwealth Avenue West — offer families a lower-cost way to establish a 1 km address for P1 registration without committing to condominium prices. Five-room resale flats in Clementi were transacting in the S$750,000–S$900,000 range (as of 2026-06), roughly 45–55% of comparable condominium quantum. Families who plan to upgrade after P1 registration has been secured sometimes use this route deliberately, factoring the S$45,000–S$60,000 resale levy on second-timer BTO applications into their planning.
NUS and one-north as an employment anchor: District 5 is one of Singapore's more economically self-contained residential zones. The NUS campus, one-north business park (Biopolis, Fusionopolis, Mediapolis), and Science Park I and II collectively employ tens of thousands of professionals in biomedical research, technology, media, and academia. Families where one or both parents work in these precincts can effectively eliminate the commute altogether — Clementi MRT is 3–4 minutes from one-north by EWL. The Jurong Lake District, Singapore's second CBD under development, is two stops west at Jurong East, adding a second major employment node that reinforces long-term capital demand for D5 property. See URA's Master Plan for the Jurong Lake District transformation timeline.
Transport connectivity: Clementi MRT (EWL) provides direct access to the CBD (Raffles Place in approximately 25 minutes), Jurong East (one stop west, 4 minutes), and Buona Vista (one stop east, 3 minutes, interchange with Circle Line). The LTA's MRT network map confirms that Dover station, one further stop east, serves the ACS International and UWCSEA Dover catchment and puts riders at Holland Village in under 5 minutes. This connectivity makes D5 viable even for families working in the CBD, reducing the school-proximity premium from a pure sacrifice to a genuine lifestyle choice.
Step by step
- Determine your target school and phase eligibility. Visit the MOE P1 distance priority page to confirm the 1 km and 2 km definitions and the current phase structure. Check whether your family has Phase 1, 2A, or 2B eligibility (alumni, MOE staff, volunteer ties) before assuming you need to rely on Phase 2C distance priority. If you have no prior-phase ties and your target school is Clementi Primary, Pei Tong Primary, or Nan Hua Primary, treat the 1 km band as a hard requirement.
- Map the 1 km radius precisely before shortlisting developments. Use OneMap to drop a pin at the school gate and draw a 1 km circle. Cross-reference with the developments you are considering — and with the specific stack or unit within a large development. Parc Clematis, for example, spans a wide footprint; a unit in Block A may be 0.85 km from Pei Tong Primary while Block H is 1.15 km. Request the unit's postal address at the point of Option to Purchase, and verify via OneMap before exercising.
- Shortlist developments by school zone. For Clementi Primary: Clavon (Clementi Ave 1), select HDB blocks along Clementi Avenue 1, and portions of Regent Park. For Pei Tong Primary: Parc Clematis (outer blocks — verify stack), The Trilinq, and West Coast Park-adjacent HDB. For Nan Hua Primary: Nan Hua Gardens and HDB along Clementi Avenue 4. For New Town Primary (fallback): Clavon (dual-coverage with Clementi Primary), Commonwealth Drive HDB.
- Run your affordability numbers. Use the affordability calculator to stress-test quantum against your household income, CPF OA balance, and cash reserves. For Singapore Citizens purchasing a first private property, ABSD is 0%; Permanent Residents pay 5% on first property. Budget for BSD (approximately 4% on S$1M–S$1.5M, 5% on amounts above up to S$3M), legal fees (S$2,500–S$4,000), and agent commission (1% of purchase price if applicable). Total upfront costs on a S$1.6M Clavon unit typically reach S$70,000–S$90,000 beyond the 25% downpayment requirement.
- Time your purchase relative to the P1 registration year. MOE's distance is measured at the time of registration, not at the time of purchase. If your child enters Primary 1 in 2028, the relevant registration window opens in mid-2027. You need to be residing at the address — not merely owning the property — by the registration exercise. For new launches with completion dates close to your registration year, verify the projected TOP date and allow a buffer of at least 6 months for handover delays and renovation before you need to register the address.
- Check school vacancy history. The MOE Primary 1 Registration results are published annually at moe.gov.sg/primary/p1-registration. Review the last 2–3 years of Phase 2C outcomes for your target school to assess how competitive the 1 km band actually is. Some years see zero vacancies reaching Phase 2C at Clementi Primary and Nan Hua Primary; others see a small number of places available. Do not rely on a single year's result.
- Compare D5 against Bukit Timah before committing. Use the property comparison tool to run side-by-side PSF, yield, and school proximity data for D5 versus D10/D11 developments. Families systematically overestimate the school quality gap between Clementi and Bukit Timah corridors and underestimate the PSF differential. Model both scenarios against a fixed budget before deciding.
Frequently asked questions
How competitive is Phase 2C balloting for Clementi Primary and Nan Hua Primary?
Both schools have been consistently oversubscribed in Phase 2C in recent years (as of 2026-06). At Clementi Primary, the number of Phase 2C applicants has exceeded available places in most recent cycles, meaning the 1 km priority effectively determined all successful applicants in that phase. Nan Hua Primary, as a SAP school, experiences similar demand. Families in the 1–2 km band should treat admission as uncertain and prepare at least one backup school choice within reach. The annual Phase 2C results are published on the MOE website after each registration exercise and are worth reviewing for the specific school before finalising a property purchase.
Does purchasing a D5 condominium guarantee my child a place at NUS High School?
No. NUS High School of Mathematics and Science selects students through an aptitude-based admissions process — there is no distance priority, no home address requirement, and no Phase 2 equivalent. Entry is competitive on academic and co-curricular merit. Living in District 5 provides convenient access once a child is enrolled but confers no admissions advantage. Families specifically targeting NUS High should focus resources on academic preparation and extracurricular development in science and mathematics rather than on school-zone property selection.
What is the typical school premium in D5 versus buying further from a good primary?
Research on Singapore school-zone premiums consistently finds a 5–15% PSF uplift for condominiums within 1 km of an oversubscribed primary versus comparable developments outside that radius in the same district. Within D5 itself, Clavon's dual-coverage of Clementi Primary and New Town Primary has supported its resale PSF holding above the broader D5 median. The premium narrows for schools that are less frequently oversubscribed and widens for the most competitive SAP and affiliated schools. Over a 10-year hold, the premium compounds — but so does the risk of a school losing popularity if new schools open nearby or enrolment patterns shift.
How does Clementi's value compare with the Bukit Timah school corridor for families on a budget?
Bukit Timah (Districts 10 and 21) concentrates Nanyang Primary, Methodist Girls' School, and Raffles Girls' Primary — arguably Singapore's most competitive primary cluster — but median PSF runs 25–40% higher than D5 (as of 2026-06). A family with a S$1.6M budget can buy a new-launch 3-bedroom unit at Clavon within 1 km of Clementi Primary; the same budget buys a resale 2-bedroom in much of the Bukit Timah corridor. D5 offers NUS High (selective but non-distance-based), Clementi Primary, Nan Hua SAP Primary, and ACS International — a school ecosystem that is genuinely strong, not a consolation prize, at a structurally lower price point. Use the District 5 analytics page to verify current PSF data before drawing conclusions.
Can I use an HDB flat address temporarily to secure P1 priority and then upgrade to a condo?
Yes, this is a legitimate and relatively common approach. You must genuinely reside at the HDB address at the time of registration — MOE can request evidence of residence. If you purchase the HDB flat as a second-timer (having previously sold a subsidised flat), a resale levy of S$40,000–S$55,000 applies on your next subsidised purchase. Families who plan to upgrade after registration should model the full sequence: HDB purchase and resale costs, levy exposure, and the private property timeline. One important constraint is the ABSD deferment rule — Singaporeans who own an HDB and purchase a private property simultaneously face 20% ABSD on the private purchase, refundable only if the HDB is sold within 6 months of private property completion. Timing the sale carefully is essential to avoid unnecessary ABSD payment.