Quality Mark


The BCA Quality Mark (QM) for Good Workmanship was launched on 1 July 2002 to encourage developers to consistently deliver quality homes, in-line with the rising expectations of homeowners for better construction workmanship quality.

Under the scheme, BCA will assess every unit of newly completed private residential projects. The QM certificate will be issued to individual apartment unit that achieve a score of at least 851 out of 100 points (a minimum CONQUAS score for internal finishes), without any major defects and water seepage in the toilets/bathrooms, and windows. The QM certifies the condition of the apartment unit at the time of inspection.

Applies to QM projects with construction tender called from 1 June 2020.


QM is required for residential sites or the residential component of mixed developments on site sold on or after 30 Jun 2022 under the Government Land Sales (GLS) Programme. 

QM is also applicable as one of the Industry Transformation Map (ITM) outcome requirement for projects that have applied for the Built Environment (BE) Transformation Gross Floor Area (BE Transformation GFA) Incentive Scheme. 

Beyond the above, QM adoption is voluntary.


Assessment Criteria

Units will be assessed based on the construction workmanship standards set out in the manual, "CONQUAS: The BCA Construction Quality Assessment System". A combination of visual assessment and measurement by tools will be used to verify compliance to tolerances and CONQUAS standards.

Scope of Assessment

The scope of assessment will be the construction workmanship standards of the internal finishes of the following 6 architectural elements:

  1. Floor
  2. Internal wall
  3. Ceiling
  4. Door
  5. Window
  6. Components - fixtures such as wardrobe, kitchen cabinet, vanity top, mirror, bathtub, water closet, shower screen and basin

The assessment will cover all locations within the units (bedrooms, bathrooms, kitchen, living & dining rooms, utility yard, balcony, private enclosed space, where applicable). In addition, the assessment will include waterponding test for bathrooms/toilets in the dwelling units.

Water-tightness tests on windows are optional. The conduct of the water-tightness test, if carried out, will be reflected in the Quality Mark.

The assessment does not cover quality of material or issues of design or aesthetic preferences.


Developers / builders can request for reassessment for those units that failed to meet the stipulated score for QM. However, defects must be rectified before the re-scoring is done.

QM Tiered Rating System

The Tiered Rating System provides recognition to developers and builders that achieve quality excellence beyond the minimum requirements.

Performance criteria for award of "Star", "Excellent" and "Merit" ratings are as follows: 

QM table* Based on initial assessment results of all locations (include balconies/private enclosed spaces) within all the dwelling units of the entire project.
** Based on initial assessment results of bathrooms / toilets in all the dwelling units of the entire project.
**Based on initial assessment results of CONQUAS sampling.

I. Wet area waterponding test passing rate = number of residential units meeting the QM wet area waterponding test requirement / total number of residential units in a project.

II. A unit is deemed to have met the wet area waterponding test requirement only if all the toilets/bathrooms within the unit and roofs/wet areas located directly above the unit clear the initial wet area waterponding tests.

III. A Project’s QM tiered rating may be downgraded under the QM moderation framework if there is/are valid complaint(s) on major workmanship defects received by BCA e.g. window/wall seepage, interfloor leakages, functionally deficient doors/windows etc.

How to apply

  • Submit a completed Quality Mark for Good Workmanship application form to BCA.
  • Enclose the project’s approved method statement on the following key processes together with the completed application form:
    a) Waterproofing work to bathrooms in the unit
    b) Stone/tiling installation work in the unit
    c) Parquet/timber installation work in the unit
    d) Window installation work in the unit

You are advised to apply early, preferably together with the CONQUAS application for a project, so that we can advise you on the lead time required to complete the QM assessment and not to affect the project completion.

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