Balcony Blinds, Windows and Awnings: What HDB and Condo Owners Can Install

Singapore balconies take the full force of afternoon sun and sudden rain, so shading or closing them up is one of the most common renovation requests. Whether you can, and how, depends on your flat type and when it was handed over. Some balconies are meant to stay open, while others can take windows with a permit.

This guide sums up what HDB says about balcony blinds, windows, grilles, railings, awnings and roller shutters, and what URA says about condo balconies. It is general information, so check the latest rules for your own home with HDB or your MCST before you start.

First, check what kind of balcony you have

HDB's renovation guidelines for window works draw a clear line. For balconies of DBSS flats, and for flats handed over from 1 July 2007 where an open balcony and/or pure planter box is provided, windows, full-height sliding doors and glass panels are not allowed to be installed at the balcony or planter box.

For other flats, HDB lists installing or replacing a window on the balcony parapet as work that needs a permit, with window panel widths of 500mm to 700mm for casement windows and 500mm to 1200mm for sliding windows, and the window safety requirements still apply. Our HDB window replacement guide covers those safety rules in more detail.

Blinds on an open HDB balcony

If your balcony is one that cannot be permanently enclosed, such as a DBSS balcony or one in a flat handed over after 1 July 2007, HDB still allows blinds without a permit, on these conditions:

• Ventilation: the balcony must have natural ventilation at all times, even when the screens or blinds are fully drawn and closed.

• Fully retractable: the blinds must be able to be drawn open or retracted fully.

• Porous material: the blind material must be porous and permeable so natural light and air can flow through.

• No solid sheets: glass, PVC or any material that completely blocks off sun, light, rain and wind is not allowed.

• Within your unit: the whole system must be within the unit's boundary, and the existing safety barrier or railing must not be tampered with.

Bamboo chicks, venetian blinds and curtain rails installed internally also do not need a permit. If you want to cut glare without blinds, HDB allows film on the glass of existing windows and balcony doors without a permit, as long as it is non-reflective or does not exceed 20% reflectance.

Grilles and railings at the balcony

• Newer flats: for flats handed over from 1 July 2007, installing or replacing grilles at the service yard or balcony parapet needs a permit, and the grilles must follow HDB's approved designs. HDB says you can find these on the renovation factsheet given when you booked the flat or collected your keys, or by logging in to MyHDB Page.

• Older flats: for flats handed over before 1 July 2007, internal metal grilles of any design at windows and the balcony parapet do not need a permit, but they must be fixed internally and cannot protrude from the building facade.

• Railings: replacing or removing a mild steel or stainless steel railing on top of a reinforced concrete balcony parapet does not need a permit, but the parapet wall must be at least 1000mm high from the finished floor level, and exposed steel bars must get two coats of rust inhibitor before finishing work.

• Interaction balconies: enclosing an interaction balcony, for example with windows or awnings, needs a permit, and HDB requires a Qualified Person or Professional Engineer (Civil or Structural) to submit building plans to SCDF for approval before HDB processes the application.

Awnings and roller shutters

HDB's renovation guidelines for building works have a separate section on awnings:

• Roller shutters: an internal metal roller shutter at a window or single-storey balcony opening does not need a permit, but this does not apply to balconies where window installation is not allowed, and it must not be fixed onto the refuse chute wall.

• Executive maisonettes: a retractable canvas awning up to single-storey height within the balcony of a double-storey executive maisonette does not need a permit. It must be fixed to the upper floor beam and must not protrude beyond the balcony.

• Open-to-sky balconies: an awning at an open-to-sky balcony needs a permit. It must be fixed directly above the frame of the full-height sliding glass door, at most 2.8 metres from the finished floor level, stay open-sided as seen from the facade, and keep its projection within the balcony's footprint.

• Colour and size: HDB says the awning should blend in with the facade in a neutral colour (light grey, mid grey or off-white). Awnings projecting more than 1.4 metres need a Qualified Person and/or Professional Engineer (Civil) and SCDF approval before HDB gives final approval.

• Upkeep: owners, and later buyers, must maintain the awning, have a Professional Engineer (Civil) inspect it every five years, keep it clean so water and litter do not collect on top, and get the Town Council's clearance for the installation.

Re-tiling the balcony floor

Changing your balcony tiles is common at the same time. HDB says replacing floor finishes needs a permit, the total thickness of finishes and screed must not exceed 50mm, and pre-packed waterproofing screed must be used for the kitchen and open balcony before new finishes go down. Topping up a balcony floor with lightweight screed or block also needs a permit, and you must keep a parapet or window sill height of at least 1000mm from the finished floor. Our toilet waterproofing and floor trap guide explains how screed and floor traps work.

Condo balconies: blinds yes, glass panels no

For condos and other strata-titled homes, URA's guidelines for strata-titled residential renovation say balconies are meant to be semi-outdoor spaces and shall not be enclosed with walls or glass panels. Blinds are treated like furnishing and are allowed at balconies without planning permission from URA.

Open-sided covers over balconies, private enclosed spaces and private roof terraces also do not need URA planning permission, but you need your MCST's consent, and the cover must meet BCA and SCDF requirements where they apply. For lofts, patio and roof terrace enclosures, see our condo loft and patio enclosure guide, and for wider house rules, our condo renovation and MCST guide.

A simple checklist for your balcony

• Check your flat type and handover date: DBSS and post-July 2007 open balconies cannot take windows or glass panels

• Pick porous, retractable blinds: no glass, PVC or solid sheets on a balcony that must stay open

• Leave the railing alone: do not tamper with the safety barrier, and keep the parapet at least 1000mm above the finished floor

• Check grille designs: newer flats must use HDB's approved designs from the renovation factsheet or MyHDB Page

• Get a permit where needed: parapet windows, awnings at open-to-sky balconies, re-tiling and floor top-ups all need one, as covered in our HDB renovation permit guide

• Condo owners: ask your MCST for its by-laws and approved designs before ordering blinds or covers

• Test before you pay: draw and retract every blind and slide every door before your final payment, using our renovation handover checklist

Where Blackwoods Interior stands

• Blackwoods Interior Pte. Ltd. (trading as Blackwoods Interior), UEN 201909521M

• CaseTrust accredited for Renovation Businesses (the standard tier, not Gold), valid through 28 April 2028

• Listed on HDB's Directory of Renovation Contractors (DRC)

Talk to Blackwoods Interior

Planning blinds, grilles or a new look for your balcony? Book a free 30-minute consultation: WhatsApp us at 8754 3212 (Mon-Sat, about 10:00-19:00 SGT) or email Hello@bwi.sg. Visit www.bwi.sg to see more.

Cover image: illustrative concept, not a completed Blackwoods project. This guide is general information based on HDB's renovation guidelines for window works and building works, and URA's guidelines for strata-titled residential renovation, checked on 30 October 2026. Rules can change, so check the latest requirements for your home with HDB or your MCST before you start.