Every home starts as a plan.
Before any quote, we start from the floorplan. This one is a typical 4-room HDB layout.
Renovation,
without the
markup.
You pay what we pay for renovation works. We handle the design, drawings and project management for one professional fee, stated upfront.
01 / 04
How we plan a home
Measured on site, not guessed.
Quantities come from real measurements, so every line in your quotation can be traced back to the drawing.
Scoped room by room.
Kitchen, bathrooms, bedrooms, living. Tap an area to see what usually goes into it. You see each one at trade cost.
Then designed around how you live.
Carpentry, storage and lighting are laid out for your routines, then shown to you in 3D before anything is built.
Select an area on the plan
Typical 4-room HDB layout · Dimensions in mm
The usual way
Most renovation quotes tell you the total. Not the truth.
[Keep scrolling]
Hidden[01]
The markup lives inside the package
Trade costs and designer margin are bundled into one number, so you can't tell what the work actually costs.
Vague[02]
Quotes you can't read
Lump-sum lines like "kitchen works" make it hard to compare, question or cut anything.
Quiet[03]
Updates go silent after the deposit
You end up chasing for photos and timelines when you should be hearing about progress first.
Unclear[04]
Defects with no clear owner
When something needs fixing, it's not always obvious who's responsible, or how long it's covered.
Cost-to-Cost
Same renovation. Different maths.
Typical package
Supplier
Designer markup
You
Blackalogy
Supplier
You pay trade cost
+
One professional fee
S$4,500 or 10%
whichever is higher
Professional fee S$7,000
10% of project value
The fee covers design, drawings, material selection, supplier coordination, project and site management, and handover. Quotations are preliminary until site measurements and materials are confirmed.
Portfolio
Every one of these started as a floorplan.
How it runs
Planned, priced and rendered. No deposit.
You see your layout, your quotation and your home in 3D, and we never ask for a deposit, not even after the renders. Meet us in person whenever you like, or not until you're ready.
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[01] Requirements
Tell us how you live
Send your floorplan and wishlist on WhatsApp. No meeting needed, though you're welcome to visit our studio.
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[02] Plan & quote
Layout and quotation first
We plan the space and send a detailed quotation, before you've even met us.
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[03] Materials & 3D
See it before you commit
Choose materials with us and see your home in realistic 3D renders. Still no deposit, and there won't be one.
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[04] Build
Keys in, works begin
Once your keys are collected, we start on site and keep you updated with photos and videos.
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[05] Handover
Checked, room by room
Area-by-area inspection, then a 3-year Blackalogy defects warranty.
Client words
Testimonials
"Thank you Billy and Blackalogy for their honesty and transparency. No hidden markups… you can clearly see where your money is going in their cost to cost model."
"I am a property agent and I often refer my clients to Billy for interior design and renovation. By far, he has exceeded my expectations and produce top notch results."
"We are extremely happy with the final outcome and truly appreciate the effort and dedication Billy put into the project."
Renovation calculator
Know your budget range before the first meeting.
Tell us your home type, size and the areas you want done. You'll get a planning estimate by area, worked out from our pricing tables.
Try the calculatorLet's draw your home.
Studio
69 Ubi Road 1, Oxley Bizhub 1
#10-25, Singapore 408731