From CanningHill Piers and Irwell Hill Residences (pre-harmonisation) to River Green (post-harmonisation) — this is how GFA harmonisation reshapes what you pay for in Singapore's most coveted riverside corridor. Real projects, real PSF, real savings.
River Valley and Havelock Road have been ground zero for Singapore's luxury new launch market since 2020. Four major projects launched in six years — and only one of them is GFA harmonised. If you are comparing these projects without adjusting for what you actually get per square foot, you are making a $100,000+ error.
The Singapore River corridor — Districts 6 and 9 — commands some of the highest PSF prices in the country. Irwell Hill Residences, CanningHill Piers, Riviere, and River Green have all targeted the same buyer: an upgrader or investor seeking a prime address, Fort Canning or river views, and Great World MRT access. But not all square feet are equal. Three of these four projects are pre-harmonisation. One is not. Understanding the difference is worth, at the River Valley PSF range, between $150,000 and $250,000 depending on unit size.
| Project | District | Tenure | Launch | Launch PSF | Current PSF | GFA Status |
|---|---|---|---|---|---|---|
| Riviere | D3 | FH | 2020 | ~$2,500 | ~$2,900 | ❌ Pre-harmonisation |
| Irwell Hill Residences | D9 | 99yr | 2021 | ~$2,750 | $2,921 avg | ❌ Pre-harmonisation |
| CanningHill Piers | D6 | 99yr | 2021 | ~$2,800 | 3BR from $3.5M | ❌ Pre-harmonisation |
| The Avenir | D9 | FH | 2020 | ~$3,350 | ~$3,500+ | ❌ Pre-harmonisation |
| Aspen Heights (resale) | D9 | FH | — | — | $1,883–$2,492 | ❌ Pre-harmonisation |
| River Place (resale) | D3 | 99yr | — | — | $1,689–$1,999 | ❌ Pre-harmonisation |
| River Green ★ | D9 | 99yr | Aug 2025 | from $2,846 | $2,846 (new) | ✅ Harmonised |
AC ledge 45 + bay window 25 + curtain wall 10 = 80 sqft non-liveable
At $2,921 psf: ~$233,680 paid for unusable space
AC ledge = common property, not in your strata area
Every square foot you pay for, you can walk on
At OCR prices of $2,200 psf, 70 sq ft of non-liveable space costs you $154,000. At River Valley's $2,900 psf, the same 70 sq ft costs $203,000. At the top end of Irwell Hill's transaction range ($3,341 psf), it costs $233,870. The higher the PSF corridor, the larger the harmonisation saving in absolute dollar terms. This is why GFA harmonisation matters most to buyers in the CCR and RCR — precisely where it was rarest to find harmonised projects until River Green launched in 2025.
River Green's pricing advantage is structural, not just numerical. Its starting PSF of $2,846 is below Irwell Hill's resale average of $2,921 and below Riviere's resale average. But River Green is a brand new 99-year leasehold launched in 2025 — its lease runway is longer than Irwell Hill's (2020 lease start), and every square foot is liveable. River Green is one of the early new launch condos under GFA harmonisation rules, meaning its PSF excludes non-livable elements like air-con ledges, so the actual usable space is more efficient than older projects at comparable or higher PSF figures.
For resale buyers: the correction trap. Older River Valley resale condos like Aspen Heights ($1,883–$2,492 psf) and River Place ($1,831 psf) look cheap versus River Green at $2,846 psf. But strip out the non-liveable area from the resale's strata area and the true PSF gap narrows considerably — especially when you factor in the age of the development and remaining lease tenure.
I managed integrated developments in the River Valley area and I can tell you that the AC ledge problem was most acute in exactly this corridor. Older units — built 2000 to 2022 — routinely had AC ledges occupying 40 to 60 sq ft. In a 700 sq ft unit at $2,900 psf, that is $145,000 of concrete you service every year for aircon maintenance and never use for anything else. The second thing most buyers miss about pre-harmonisation River Valley units: the curtain wall. Full-glass facades were counted as "free" GFA for developers — they could charge you strata area for the glass wall. Under harmonisation, that glass counts as GFA, so developers now bear the cost and most have switched to standard window walls in mass-market launches. If you see a pre-harmonisation unit with a full curtain wall facade being advertised as "panoramic glass" — understand you paid for that glass at full PSF rate as part of the strata area quoted to you.
Comparing River Green against a pre-harmonisation River Valley unit?
James runs the liveable floor plate comparison so you see the true PSF before committing. D9 / D6 specialist · Managing Agent experience · CEA Reg No. R008385F · PropNex
WhatsApp James: 91111173Sources: URA Realis caveat data; EdgeProp, Irwell Hill Residences transaction data, 2024–2025; StackedHomes, River Green pricing review, July 2025; 99.co, River Place and Aspen Heights transaction data, 2025–2026; EdgeProp, Aspen Heights new price record $2,492 psf, April 2026; URA, GFA Harmonisation circular, September 2022
For informational purposes only. PSF figures are based on URA caveats and published transaction data and may not reflect current asking prices. The savings illustration uses indicative figures. BSD per IRAS 2024 schedule. Consult a licensed conveyancer before any transaction decision.
