An HDB floor plan is the layout drawing HDB holds for your flat, sold through HDB's Purchase of Residential Floor Plan e-Service and widely listed at S$5 per plan inclusive of GST. It shows the flat as HDB built it, not your renovations. Private property is a different agency entirely.
This page is the reference: what exists, what it costs, what it shows. If you want the click-by-click procedure, use how to get an HDB floor plan instead.
What an HDB floor plan shows
The unit layout as constructed: room arrangement, the position of the walls HDB built, and the overall footprint of the flat. It is a record of the original build, held by the authority that built it. That makes it authoritative about one thing and silent about another.
What it does not show is anything done to the flat afterwards. Every wall a previous owner moved, every false ceiling, every wardrobe built into a recess: none of that reaches the archived plan. HDB is not maintaining a live model of your flat. It is holding the drawing of the flat it handed over.
Two further limits are worth stating honestly rather than glossing over, because HDB does not publish either point where we could read it. We could not establish whether the plan is a certified document, and we could not establish whether it is dimensioned and drawn to a stated tolerance. If your use depends on either, ask HDB before you rely on the drawing. We also could not confirm that plans exist for every flat, including the oldest SIT-era and early HDB blocks.
HDB flat or private property? Different agency, different fee
This is the distinction that sends the most people to the wrong website. HDB flats go through HDB. Private property goes through BCA, and to URA for planning records. Neither agency will serve the other, and the fees are not in the same league.
| Your property | Where the plan sits | Published fee |
|---|---|---|
| HDB flat | HDB, Purchase of Residential Floor Plan e-Service | Listed at S$5 per floor plan inclusive of GST. See the caveat below: this figure could not be read on an HDB page. |
| Private condo or landed: approved building and structural plans | BCA, Plan Purchase System | S$45 per address to search, then S$65 per plan reference number, both inclusive of GST |
| Private condo or landed: planning records | URA, Buy Planning Records (DC 15) | S$109 search per application inclusive of 9% GST, then S$27.25 per set of approved plans or Grant of Written Permission |
The order of magnitude is the memorable part. An HDB flat's floor plan is a single-digit-dollar purchase. A private property's approved plans are a three-figure purchase before you have received anything. There is no such thing as one government search fee for property plans. The BCA route is set out in full in BCA plan purchase, and if you are dealing with a condominium unit specifically, condo floor plans in Singapore maps the four possible routes to the document you actually need.
What it costs and how it reaches you
One thing needs saying before any figure: HDB's public information pages render their content with JavaScript, and the e-Service itself sits behind a Singpass login. On 14 August 2026 the page bodies came back empty to an automated fetch, so none of the figures below could be read on an HDB page. They come from search results that attribute them to HDB. Treat them as indicative, and let the e-Service show you the current fee before you pay.
- The fee is listed as S$5 per unit floor plan, inclusive of GST.
- Payment is listed as by credit card, Visa or Mastercard.
- Delivery is listed as a softcopy PDF by email: downloadable immediately after payment if the plan is already available, otherwise processed and emailed within about 3 working days.
- The e-Service is listed as allowing up to 5 plans per application, with a further application for more.
- Login is listed as Singpass, with a local contact number and a valid email address required.
- A walk-in Sale of Architectural Plan counter at HDB Hub has been reported, but that may well be out of date. Check with HDB before travelling to a counter.
Eligibility is the one thing we will not guess at. We could not establish whether the e-Service is open to anyone, or restricted to the registered owner or occupier of the flat. Do not take a claim either way from a third-party blog. The e-Service will tell you when you get there. The service itself is at services2.hdb.gov.sg, with supporting information on HDB's get help and terms and conditions pages.
Why you probably need it: the renovation permit
Renovation is the main reason a flat owner goes looking for the plan, and HDB is explicit about why. On its renovation permit page, HDB states: "Renovation contractors are to submit to HDB, the flat's floor plan showing the proposed work, together with the electronic application for renovations."
Two things follow from that sentence. First, the permit application is submitted by your renovation contractor, not by you. Second, the contractor cannot submit it without a floor plan to mark up, which is your side of the job. If your renovator asks you for the plan on the day the quote is due, this is why.
Structural walls, and what HDB actually evaluates
The same HDB page confirms that works such as the demolition of walls are evaluated by HDB, and refers to ensuring that your flat's structural integrity is not compromised. That is the verified part, and it is the part that matters: hacking is assessed, not assumed.
The circulating lists of exactly which members may never be removed, including the ones specific to executive maisonettes, are not something we could read on an HDB page, so we are not going to reproduce them here as though they were. Your contractor must confirm the position for your specific flat with HDB, working from the plan, before any hacking is priced or started.
When the HDB plan is not enough
For the overwhelming majority of readers it is completely sufficient, and we would rather say that than sell something. Buy the plan, hand it to your contractor, get the permit. If you are renovating a normal flat and the layout matches what you see, you are done and there is nothing further to buy.
The narrow cases where measurement rather than an archive is the answer:
- Previous owners have renovated and you need the current layout, not the original. Fitted carpentry is the usual trigger, because a centimetre of error in a recess is expensive, as is a dispute about what was altered and when.
- You need verified dimensions or areas, rather than the schematic layout an archived plan gives you.
- Maisonettes, jumbo flats and converted units, where the record may not reflect the merged or altered unit at all.
- Commercial or institutional HDB property, and HDB shophouses or commercial units undergoing A&A works, where a Qualified Person needs existing-condition drawings to design and submit against.
In those cases the deliverable is a measured record of the unit as it stands. 3D laser scanning captures it, and as-built documentation turns the capture into a dimensioned plan set. That is a drawing service and nothing more: it does not replace a Qualified Person's submission to the authority, a Professional Engineer's structural assessment, or a Registered Surveyor's endorsement of boundary or strata area. Those roles stay where the law puts them. If the archived plan and your flat disagree, the wider problem is set out in what to do when the floor plan is missing or wrong, and you can always describe the flat and what you need drawn before committing to anything.
Rule of thumb: buy the plan first. If it does not match what you are standing in, that is the moment measurement becomes the answer, and not before.