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.
What Is a Comparable Market Analysis?
A Comparable Market Analysis (CMA) is a structured method for estimating the market value of a property by analysing recent transactions of similar properties in the same area. It is the primary tool agents use when advising sellers on listing price and buyers on offer price. A well-constructed CMA shows the client why a particular price is defensible — not a guess, but a reasoned conclusion from observable market data.
In Singapore, the primary data source for CMA is the URA Real Estate Information System (REALIS) caveat database, which records all caveated property transactions. HDB resale transactions are separately published by HDB on data.gov.sg. Both datasets include the transacted price, floor area, floor level (for strata properties), and transaction date — enabling systematic price-per-square-foot (PSF) analysis.
Step 1 — Define the Subject Property
Before pulling comparable transactions, document the key characteristics of the subject property:
- Property type: HDB flat (flat type, floor area, floor level), private condominium (development name, unit type, floor area, floor level), or landed (type, land area, built-up area, tenure)
- Tenure: Freehold, 999-year, or 99-year leasehold (and remaining lease for resale properties)
- Location: District (D1–D28), postal district, proximity to MRT, proximity to amenities and schools
- Condition and fittings: Recently renovated vs bare condition; quality of fittings relative to development standard
- Facing and view: High-floor unobstructed view vs low-floor pool-facing vs blocked facing
Step 2 — Select Comparable Transactions
The quality of a CMA depends entirely on the quality of the comparables selected. The selection criteria, in order of priority:
| Criteria | Guidance |
|---|---|
| Same development | Strongest comparable — same land, same tenure, same facilities. Use transactions within the last 6 months where available |
| Same street or immediate vicinity | For developments with limited recent transactions, expand to the same street or 500m radius; use same tenure and similar age |
| Similar floor area | Within ±15% of subject floor area. PSF is not perfectly constant across unit sizes — smaller units transact at higher PSF; adjust if the size difference is significant |
| Similar floor level | High-floor premiums are real and vary by development. Ideally use transactions within 5 floors of the subject; adjust explicitly for known floor premiums |
| Recency | Use transactions within the last 3–6 months. In a rising market, older comparables understate value; in a falling market, they overstate. Flag any comparable older than 6 months and explain the market direction adjustment |
| Same tenure | Never mix freehold and 99-year leasehold comparables without explicit adjustment. Freehold premiums vary by location and market segment |
Step 3 — Calculate and Adjust PSF
For condominium and HDB transactions, PSF (price per square foot based on strata area for private, internal floor area for HDB) is the standard unit of comparison. The adjustment process:
- Calculate raw PSF for each comparable: transacted price ÷ strata area (sqft). Note URA records in sqm — convert using 1 sqm = 10.764 sqft
- Adjust for floor level: Apply a per-floor premium based on observed price gradients in the same development or comparable developments. In Singapore, premiums of 0.3%–1% per floor are common for high-rise condominiums above a certain level
- Adjust for condition: A recently renovated unit with high-specification fittings may command a 2%–8% premium over a bare or dated unit in the same development depending on segment
- Adjust for facing: Unobstructed pool or sea views command premiums; blocked or road-facing units trade at discounts. Quantify from recent within-development transactions where possible
- Adjust for market trend: If comparables are 3–6 months old, apply a market trend adjustment using the URA price index for the relevant market segment (CCR, RCR, OCR)
Step 4 — Derive the Value Range
A CMA should produce a value range, not a single number. After adjusting all comparables, the range is typically:
- Lower bound: The adjusted PSF of the most conservative (lowest) comparable, multiplied by subject floor area
- Upper bound: The adjusted PSF of the most aggressive (highest) comparable, multiplied by subject floor area
- Point estimate: The midpoint or weighted average, giving more weight to the most recent and most similar comparables
Present the range to clients rather than a single number. Explain that the lower bound represents what the property will sell for quickly with minimal negotiation; the upper bound represents what a motivated buyer with specific requirements might pay. Pricing above the upper bound risks extended time on market and eventual price reduction.
HDB Resale CMA
For HDB resale flats, the CMA process is similar but uses HDB transaction data rather than URA REALIS. Key differences:
- HDB floor areas are internal (wall-to-wall) only — HDB does not include balconies or void areas in floor area. This makes HDB PSF higher than equivalent private property PSF on a like-for-like basis
- All HDB flats are 99-year leasehold. Remaining lease is a material factor — a flat with 40 years remaining will transact at a significant discount to an equivalent flat with 80 years remaining due to CPF withdrawal restrictions and bank loan tenure limits
- The Ethnic Integration Policy (EIP) quota can constrain the buyer pool. If the block or neighbourhood quota for a particular ethnic group is near or at the limit, the effective buyer pool is smaller, which can depress prices
- HDB valuations are conducted by HDB-appointed valuers. The HDB valuation is used to determine CPF usage limits and eligible grant amounts, not the transacted price. Buyers may pay above valuation (Cash Over Valuation, COV) in cash
Presenting the CMA to Clients
A CMA presentation should include:
- A table of comparables with key attributes (development, floor area, floor level, transacted price, PSF, transaction date) — not a verbal summary
- Explicit note of any adjustments made and why
- The derived value range with the point estimate
- A brief market direction commentary — is the segment trending up, flat, or softening? Support with URA index data
- For sellers: the recommended listing price and expected time on market at that price
- For buyers: the recommended offer price and the maximum price supportable by comparables before the buyer is paying a premium without data support
Frequently Asked Questions
Q: How many comparables do I need for a valid CMA?
A: A minimum of 3 comparables is the standard guidance, but more is better when available. For developments with many same-type units transacting regularly, 5–8 comparables give a more reliable range. For unique properties (large penthouses, rare layouts, landed in thin markets), even 2–3 comparables may be all that are available — in this case, be explicit about the limited data and widen the value range accordingly.
Q: Can I use asking prices (listings) as comparables in a CMA?
A: No. Asking prices reflect seller aspirations, not market reality. A CMA must be based on transacted prices — what buyers actually paid. Listing data can provide context (e.g., active competition, typical time-to-transact) but should not form part of the comparable price analysis.
Q: What is the difference between a CMA and a bank valuation?
A: A CMA is a professional market opinion prepared by a licensed real estate agent. A bank valuation is a formal appraisal prepared by a licensed valuer (SISV-registered) for mortgage lending purposes. Banks do not accept CMAs as substitutes for formal valuations. The two may reach similar conclusions but serve different purposes and carry different legal standing.
Q: How do I handle a situation where comparables are very wide-ranging?
A: A wide range of comparable PSFs usually indicates that one or more comparables are not truly comparable — different floor levels, condition, facing, or unit type are introducing variance. The solution is to tighten the comparable selection criteria (same floor band, same unit type) rather than presenting the full spread. If the wide range reflects genuine market uncertainty (thin market, recent policy change), say so explicitly and widen the recommended range accordingly.
Q: Should I adjust for renovation in a CMA?
A: Yes, but carefully. Renovation adds value in relative terms — a well-renovated unit will sell faster and at a modest premium over a bare unit in the same development. However, renovation value is not dollar-for-dollar: a $150,000 renovation does not add $150,000 to market value. Typical renovation adjustments are 2–8% of market value depending on the quality and market segment. In the mass market, buyers often prefer a lower price and the ability to renovate to their own taste.
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.