Summary
What an owner can build on a landed plot in Singapore is set by the Urban Redevelopment Authority (URA). Its landed housing area plan shows the house types allowed on each site, and its envelope control guidelines cap overall height at 12m in a designated two-storey estate and 15.5m in a three-storey one (URA, updated 7 Jun 2026). Minimum plot sizes, setbacks and, for bungalows, site coverage limits apply on top.
Not every job needs URA's planning permission. Enlarging rooms or rebuilding a roof in its existing form does not; closing up an open balcony, earthworks and splitting a plot do. Additions of more than half the existing floor area are treated as a rebuild.
What this means for Singapore landed home owners and buyers
Start with the landed housing area plan
URA's landed housing area plan map shows the housing types safeguarded for each site, and the number of houses a plot can hold depends on the minimum plot size and width for each type. A house may not exceed the two- or three-storey height control or the storey height in the Master Plan's designated landed housing plan, "whichever is lower", URA says. Check the designation before paying for a plot on the strength of a taller rebuild.
The building envelope
URA's envelope guidelines allow:
- an attic, as an incidental space inside the two- or three-storey envelope
- roof terraces at least 3m below the top of the envelope; roofs less than 3m below it must be flat reinforced concrete roofs, closed except for maintenance
- mezzanine floors, without the old limit of 50% of a typical floor plate
- basements, subject to setbacks; in low-lying areas, internal space below the minimum platform level counts as a basement storey rather than an extra storey
Stricter technical height limits take precedence, and conservation or urban design controls may also apply.
Plot size, site coverage and setbacks
| House type | Minimum plot | Minimum width | Site coverage (house / overall) | Setbacks |
|---|---|---|---|---|
| Detached (bungalow) | 400 sqm | 10m | 40% / 50% | Front 7.5m, side 2m, rear 2m |
| Good Class Bungalow | 1,400 sqm | 18.5m, with 30m depth | 35% / 45% | Front 7.5m, side 3m, rear 3m |
| Semi-detached and corner terrace | 200 sqm | 8m | No control | Front 7.5m, side 2m, rear 2m |
| Intermediate terrace | 150 sqm | 6m | No control | Front 7.5m, rear 2m |
Source: URA, Prevailing Planning Controls for Landed Housing (updated 12 Jun 2026). Front setbacks apply on Category 3 to 5 roads; terrace figures are URA's Terrace-I type.
The two-tier coverage limit for bungalows applies to applications submitted from 1 Mar 2025. The lower figure caps the house itself, measured to the external façade and including balconies and roof terraces; the higher one covers every structure, including roof eaves and other sun-shading.
Illustration only. ProprKey calculation using URA's limits. On a 400 sqm bungalow plot, the house can cover up to 160 sqm, and all structures together up to 200 sqm.
What needs URA's permission
According to URA, no planning permission is needed to:
- enlarge or relocate rooms, if the house stays residential
- enclose a balcony already approved as covered, with glass panels or windows
- replace windows and doors, if floor area does not grow, setbacks are not reduced and window positions stay the same
- rebuild a roof in its existing form without raising it
- put up boundary walls, gates or fences up to 1.8m high
Permission is needed to close up an open balcony, for any earthcut or earthfill, for a new pavilion and to redevelop one landed property into more.
Renovation or rebuild
Under URA's plan lodgment route, a qualified professional can lodge additions and alterations if the added gross floor area "does not exceed 50%" of the existing approved area, new external walls make up no more than 50% of the existing ones and structural changes cover no more than 50% of the floor area. Replacing the whole roof, even with a higher one, is allowed if it adds no storey. Anything larger "should be lodged as a new erection / reconstruction proposal". Lodgment is not open to sites in Good Class Bungalow Areas, conservation areas or special control areas, and the authorisation is valid for two years.
Structural works also come under the Building and Construction Authority (BCA). As URA's own conditions show, BCA is involved even when a neighbouring house is affected: an engineer must certify the remaining house's structural stability to BCA. Ask your architect or engineer which BCA plan approvals and permits your works need, and how long they take, before you set a timeline.
Turning a semi-detached or terrace house into a bungalow
In designated landed housing areas, a semi-detached house can be redeveloped into a bungalow only if its plot meets the 400 sqm and 10m minimums and the other half of the pair could later meet them too. A terrace house can become a bungalow on the same minimums if the house next door could still become a corner terrace of 200 sqm and 8m. URA's conditions include plastering and painting the exposed wall of the remaining house and an engineer's certification to BCA of its structural stability.
Education only — not tax, legal or investment advice. Confirm with a licensed professional.
What to do next
- Look up the site on URA's landed housing area plan map for its house types and storey control.
- Run planned alterations through URA's Landed Housing e-Advisor for a quick check against the controls; it does not cover earthworks.
- Ask your architect or engineer whether the works can be lodged as additions and alterations or need a full rebuild application.
- Before buying a landed home to rebuild, check its plot size and width against URA's minimums for the house type you want.
- Find verified trades and build professionals: https://proprkey.com/en/pros?segment=trades
- Browse homes for sale: https://proprkey.com/en/properties?segment=buyer&mode=buy