HIP Upgrading and Your Own Renovation: Which One Goes First

You have just collected the keys to an older flat, or you have lived in one for years and finally have the budget. You start planning the renovation. Then a neighbour mentions that the block is due for HIP.

That single piece of information should change your plan, and most people find it out too late — usually after the new bathroom tiles are already on the wall.

Here is what the Home Improvement Programme actually does to your flat, which parts of it collide with a private renovation, and how to sequence the two so you are not paying for the same wall twice.

What HIP is, in plain terms

HIP is HDB's upgrading programme for older flats. It has three components: Essential Improvements, Optional Improvements, and EASE, which is a set of optional items aimed at making a flat safer for seniors.

The Essential Improvements are the ones that matter most to your renovation planning, because you do not get to decline them and because they are invasive. They cover:

• Repair of spalling concrete
• Replacement of waste and soil discharge stacks
• Replacement of pipe sockets, with a new clothes drying rack
• Upgrading of the electrical load, where necessary

These are fully funded by the Government for Singapore Citizen households.

The Optional Improvements are yours to choose, and the Government subsidises a major portion of them:

• Upgrading of existing toilets and bathrooms
• A new entrance door and grille gate
• A new refuse chute hopper

Read those two lists together and the collision becomes obvious. Every item on them lands in a place a renovation also lands: the bathrooms, the ceilings, the distribution board, the front door, the kitchen.

The one that catches people out: the soil stack

If you take one thing from this article, take this one.

The waste and soil discharge stacks are the vertical pipes that carry everything from your bathrooms down through the block. They are shared. They run inside or beside your bathroom, and replacing them means opening up whatever is in front of them.

So if you re-tile a bathroom this year and the stack replacement arrives next year, somebody has to open that wall again. The tiles that come off do not go back on. Even where making good is carried out, matching a tile you chose privately is a different problem from restoring a standard finish — which is precisely why we tell clients to buy and keep spare tiles from the same batch, whether or not HIP is in the picture.

The same logic applies to a boxed-in duct, a new vanity built tight against the wall, or a false ceiling in the bathroom. Anything built across the stack is in the way.

Find out where your block stands before you plan anything

This is a ten-minute job and it changes everything downstream. You want to know one of three things:

• HIP has already been done. Then it is behind you, and you can renovate without reference to it. Ask the seller or the previous owner what was done, and whether the toilets were upgraded under the Optional package — it tells you the real age of the waterproofing, which is not the same as the age of the flat.
• HIP is announced or in progress for your block. Then the notices, the polling exercise and the information booklet for your block are the authority on the schedule and the scope. Read them rather than relying on what a neighbour heard.
• Nothing announced. Then you plan a renovation normally, but you build in the small hedges below, because "nothing announced" is not "never".

The block-specific HIP page and information booklet from HDB carry the actual dates and item list. Do not plan around a rumour; do not plan around this article either. Get your block's own notice.

If HIP is coming: what to do first

Do the bathrooms last, or do them through HIP. This is the core decision. If the Optional toilet upgrade is on the table, you are choosing between HDB's standard specification at a subsidised price, and your own finish at full price. Both are legitimate. What is not sensible is paying privately for a bathroom and then having the stack behind it replaced afterwards.

Bring forward the things HIP does not touch. HIP is not a renovation. It does not do your kitchen, your flooring outside the wet areas, your carpentry, your painting, your lighting design or your additional electrical points. Those can proceed on your timeline regardless, and doing them first means you are living in a better flat while you wait.

Treat the electrical load upgrade as an opportunity. If the Essential works include upgrading the electrical load in your flat, that is the moment when the incoming supply and the distribution board are being looked at anyway. If you are planning a lot more aircon, an induction hob, or a water heater in every bathroom, knowing what the board will support afterwards is worth having before you specify.

Leave the entrance door and the refuse hopper alone. If they are on the Optional list for your block, buying a new door privately first is money you will not get back.

If you must renovate first

Sometimes the timing does not allow waiting — you are moving in, or letting the flat, or the current bathroom is failing. That is fine. Renovate, but renovate defensively:

• Keep spare tiles from the same batch, floor and wall, for every wet area. Store them in the flat, not at the contractor's yard.
• Photograph everything before it is closed up — where pipes run, where the stack sits, where waterproofing was laid and how far up the walls. Photographs of a wall before it is tiled are worth more than any warranty document when someone has to open it again.
• Avoid permanent boxing across the stack. An access panel costs very little at the time and saves a demolition later. The same is true for concealed valves and any pipe junction.
• Do not skimp on waterproofing because HIP might redo it. Waterproofing is the one item where a shortcut shows up as your downstairs neighbour's ceiling, and that is a dispute you own regardless of any upgrading programme.

Where a contractor fits into this

A renovation contractor does not carry out HIP works — HDB appoints its own contractor for that. What a contractor should do is plan around it: ask you whether the block has been upgraded, look at the age and condition of the existing bathrooms, and tell you plainly when the sensible answer is to defer part of the scope.

That conversation is worth having early, because it can reduce the job. A contractor who never mentions HIP in an older block is either not asking or not telling. As an HDB-licensed renovation contractor (licence HB-09-5667H), the check is part of how we scope an older flat before quoting anything.

The short version

HIP replaces the shared pipes behind your bathroom walls, repairs spalling concrete, upgrades your electrical load where needed, and offers subsidised toilet, door and hopper upgrades on top. All of those land in the same places a renovation lands.

So find out where your block stands before you specify anything. If HIP is coming, do the dry work now and the wet work through or after the programme. If you cannot wait, keep spare tiles, photograph the walls before they close, and leave a way back into the stack.

Further reading: what to keep versus hack in an older flat covers the same judgement call on the rest of the flat, bathroom waterproofing and what it costs explains why the wet areas are the expensive place to get this wrong, and the HDB renovation permit guide covers what you need approved before work starts. If you are choosing who does the work, our HDB renovation contractor page sets out how we quote.

Not sure whether your block is due for upgrading, and how it should change your plan? WhatsApp us on 9107 2601 — tell us the block, the flat type and roughly what you were planning, and we will tell you which parts are worth doing now and which are worth holding.