Analysis5 min read·14 May 2026

Our Scoring Methodology, Backtested: Martin Modern (8.2) vs The Jovell (4.5)

We applied our Deal Score methodology to two projects from 2017–2018 using only data available at the time. One returned +26.2%. The other: +1.5% per year.

Can a scoring system actually predict which condos make money?

We backtested our methodology on two projects from the 2017–2018 launch cycle. One would have scored 8.2 — Strong Buy. The other: 4.5 — Skip. Here's what happened.

Martin Modern (D9, Launched 2017)

Our retroactive score: 8.2 — Strong Buy.

The data at launch: $2,200 PSF average. District 9 resale average at the time: $2,204 PSF. Premium: essentially zero. Developer: GuocoLand (strong track record). Great World MRT confirmed under construction. River Valley Primary School within 1km. Approximately 90 units sold on launch weekend.

Every factor our methodology weights heavily — value for money, location, developer — lit up green.

The result: Martin Modern now trades at $2,777 PSF. That's +26.2% appreciation over 9 years. A buyer who put $550K down on a $2.2M unit has equity of roughly $1.16M today. That's a ~111% return on their cash.

The Jovell (D17, Launched 2018)

Our retroactive score: 4.5 — Skip.

The data at launch: $1,300 PSF average. District 17 resale average at the time: ~$989 PSF. Premium: +31.4%. That's a massive markup for an OCR project in Flora Drive. Nearest MRT (Tampines East): 15–20 minute walk. Only 22% sold in the first year — a clear signal the market wasn't buying the pricing.

Three simultaneous red flags: high premium, poor MRT access, weak sales velocity. Our methodology would have flagged all three.

The result: The Jovell now trades at ~$1,459 PSF. That's +12.2% over 8 years — a 1.5% annual return that barely covers inflation. After stamp duties and transaction costs, many buyers are in negative real-terms territory. Multiple unprofitable transactions have been recorded on the resale market.

What This Proves

An 8.2-rated project returned +26.2%. A 4.5-rated project returned +1.5% annually. The scoring methodology correctly identified the winner and the loser based on data available at the time of each launch.

The lesson: the asset class (property vs stocks) matters less than the project you choose. A well-picked new launch compounds your wealth. A poorly-picked one traps your capital for a decade.

That's why we score every new launch independently.

Compare property vs stocks returns → interactive comparison tool

See our current Deal Scores →


Past performance is not indicative of future results. These are illustrative backtests using retrospectively applied methodology.

Frequently Asked Questions

Did Ground Floor's scoring predict Martin Modern's returns?
In a retroactive backtest, our Deal Score methodology would have rated Martin Modern 8.2 (Strong Buy) in 2017 based on its zero premium over district resale, GuocoLand's track record, and confirmed MRT infrastructure. Martin Modern has since appreciated +26.2% to $2,777 PSF.
Why did The Jovell underperform?
Our methodology would have flagged The Jovell at 4.5 (Skip) due to three red flags: a +31.4% premium over D17 resale, no walkable MRT access, and only 22% sold in the first year. It has returned just +1.5% CAGR over 8 years — barely above inflation.
Does the Ground Floor Deal Score predict returns?
Our backtesting shows that projects scoring 8.0+ (Strong Buy) significantly outperformed projects scoring below 5.0 (Skip) in the 2017–2018 launch cohort. However, past performance is not indicative of future results, and the methodology should be one input among many in your purchase decision.
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