Plot ratio is the multiplier that caps how much Gross Floor Area (GFA) a developer can build on a land parcel — a GPR of 2.8 means 2.8 m² of GFA per 1 m² of land. The URA Master Plan 2025 is the current authoritative source for every site's GPR in Singapore (as of 2026-05).
Gross Floor Area and plot ratio are the two numbers that decide how dense any Singapore development can be — and by extension, how many units a new launch can sell, how tall a redeveloped site can rise, and how much an en-bloc bidder is willing to pay. The figures are not negotiable on a project-by-project basis; they're published by URA in the Master Plan and revised every five years. The current authoritative version is the URA Master Plan 2025 (as of 2026-05).
For buyers and homeowners, these numbers matter most when you're evaluating en-bloc potential, weighing a new launch's density against neighbouring projects, or trying to understand why one HDB-adjacent site can support a 30-storey tower while another caps out at 5 storeys.
The 2025 Draft Master Plan, published in mid-2025, raised plot ratios on several prime sites including Paterson Rise from GPR 2.8 to 3.5 — a meaningful uplift that signals where URA is willing to accept higher density (as of 2025-Q3). Major redevelopment plans like the Greater Southern Waterfront, Paya Lebar airbase relocation, and the Jurong Lake District transformation are all coordinated through Master Plan plot ratio assignments.
What Does It Mean?
Gross Floor Area (GFA)
Gross Floor Area (GFA) is the total area of all covered floor space in a building, measured to the outer edge of external walls. GFA determines the maximum buildable area under URA's planning regulations.
Plot Ratio
Plot Ratio is the ratio of maximum permissible GFA to the site area. A plot ratio of 2.8 on a 10,000 sqft site means up to 28,000 sqft of GFA can be built. Higher plot ratios allow denser, taller developments.
How Is It Calculated?
Gross Floor Area (GFA)
GFA includes all covered areas but excludes void areas, balconies (subject to bonus GFA), and certain communal spaces.
Plot Ratio
A site area of 10,000 sqft with plot ratio 2.8 allows maximum GFA of 28,000 sqft.
Worked Example
Higher plot ratio means more buildable area and typically more units, increasing the development's total value but also its density.
Why It Matters
Plot ratio and GFA determine the development potential of a site. For en bloc investors, understanding these metrics helps assess whether a developer can build profitably on the site.
Where to Find This on ShiokNest
- Property detail pages
- New Launch tab
- New Launches tab (project details)
Look for the tooltip icon next to this metric on ShiokNest for a quick reminder of its definition.
Official Sources
Loading quiz...
This glossary article is auto-generated from ShiokNest's financial data and updated periodically. Rates and figures are current as of May 2026. Check official sources for the latest.
Worked example: how plot ratio translates to a buildable scheme. Take a 10,000 m² (≈ 1 ha) residential site with a published GPR of 2.8 — the typical mid-rise residential band in Singapore.
- Maximum GFA = 10,000 m² × 2.8 = 28,000 m² (≈ 301,400 sqft)
- Assuming an average unit size of 80 m² (≈ 861 sqft) and an efficiency factor of around 75% for GFA-to-saleable conversion (corridors, lift cores, M&E rooms are part of GFA but not sold), the site could yield roughly 260 units.
- Height-wise, GPR 2.8 typically corresponds to URA's residential height bands of 24–36 storeys, depending on adjacent height controls.
Compare to the same 1 ha site under the new URA GFA harmonisation rules that took effect in 2023 and remain current: certain previously-exempt areas (covered communal terraces, certain bay windows) now count toward GFA, which subtly reduces the effective unit count developers can extract per GPR point.
- Check the Master Plan for any site you're considering at URA SPACE. The plot ratio appears as a number overlaid on each land parcel.
- For en-bloc evaluations, model the post-redevelopment scheme using the published GPR — not the existing built-up density. The gap between built and allowable density is the redevelopment upside.
- For new launches, divide the project's total unit count by the site area in hectares to estimate the effective density; compare against typical GPR-to-density benchmarks for that residential band.
- For owners of older condos at low GPR, monitor each Master Plan refresh for GPR uplifts on neighbouring sites — uplift signals where URA may eventually re-evaluate your own plot.
Frequently Asked Questions
Where do I find the plot ratio for a specific Singapore site?
Use the URA SPACE map at ura.gov.sg/maps. Each land parcel displays its zoning and GPR overlaid on the map. The data reflects the most recent gazetted Master Plan (currently the 2025 plan, as of 2026-05).
Can a developer build above the published plot ratio?
Only via a Written Permission with bonus GFA — typically granted in exchange for community amenities, public space, or heritage conservation. These uplifts are case-by-case and uncommon for standard residential schemes.
Does GFA include balconies and air-conditioner ledges?
Since the URA Harmonisation Rules took effect in 2023, balconies count toward GFA up to a 7% cap of total GFA, after which they are excluded. Air-conditioner ledges, planter boxes and bay windows are subject to specific exemptions documented in URA's Development Control Handbook.
Why do some HDB-adjacent condos have higher plot ratios than their neighbours?
Plot ratio is set parcel-by-parcel based on URA's strategic intent — proximity to MRT, identified growth corridors, and the residential height band assigned to the area all influence GPR. Two adjacent sites can carry different GPRs if one falls within a designated growth zone.
How often does URA revise plot ratios?
The Master Plan is reviewed every five years. The 2025 Master Plan supersedes the 2019 plan; the next revision is due around 2030. Ad-hoc amendments can occur within the five-year window for specific sites.