HDB Renovation: A First-Timer's Guide

First-time HDB renovations usually take longer than owners expect, and construction is rarely the reason. The permit process comes first. Work that involves hacking walls or other structural elements needs HDB approval before anything is demolished, and that can add weeks you did not budget for.

Find out early what needs a permit. Hacking walls, moving gas points, some plumbing changes and altering bay windows fall under HDB's renovation guidelines. Painting, laying flooring over an existing subfloor and built-in carpentry generally do not. The line is not always obvious, which is why it catches people out. Ask your designer or contractor and check the current rules on HDB's website.

Custom carpentry runs on its own production lead time alongside site work, so ask for the schedule in writing. Timelines vary with the flat, the scope and the permits involved, so treat any single figure as a rough guide.

Sort your wishlist into must-do and nice-to-have items before the first meeting. Must-dos typically include rewiring if the existing wiring is old, waterproofing wet areas and floor works. Nice-to-haves, such as a feature wall, a kitchen island or elaborate built-ins, are easier to trim or phase.

Keep a contingency in the budget. A common rule of thumb is ten to fifteen percent, held back for surprises such as ageing pipes or wiring that only show up once walls are opened. Older flats often reveal at least one.

Plan around living arrangements. Renovating while you live there brings dust and noise, and HDB sets permitted working hours. Moving out temporarily usually shortens the schedule, since contractors can work without disturbing a household. If you stay, set up a basic temporary kitchen and make sure one bathroom stays usable.

Tell your neighbours before the noisy work starts. Complaints to the town council can lead to works being paused for an inspection. Avoid scheduling around Chinese New Year and year-end holidays if you can, when contractors are stretched.

Keep a written log of every decision and variation, even if it is only messaging app history. At the end, ask for a defects walkthrough before you release final payment. Most contracts include a defects liability period, and it is easier to use it while you still hold the last payment.