Interior Design Cost Calculator: What Will Your Project Cost?
Get a quick planning range for your interior design and build project below, based on your property, finish level and scope.
That's all it takes to get a personalised planning range for your project.
Get an early planning range for your project
Answer a few questions about your property and scope to get an early budgeting range for interior design and build work. These are planning ranges for homes in Kuala Lumpur, Selangor and the wider Klang Valley, not a fixed quotation.
A baseline, adjusted for your property.
The calculator starts with a baseline cost for your project type and size, then adjusts it for property type, finish level, current condition, location and any extra work you flag — hacking, waterproofing, plumbing, electrical work, custom cabinetry or condo access limits. The result is a low-to-high planning range, not a single fixed number.
Indicative Klang Valley planning ranges, reviewed 2026. These are estimating assumptions, not fixed contractor or designer pricing — the final figure depends on scope, property condition and materials, confirmed after a site visit.
What moves your estimate most
These are the practical drivers behind the range the calculator shows — the same factors that shape any real quotation once a site visit happens.
Property size and type
A condo, terrace house, semi-D or bungalow carries a different baseline simply from built-up area and access.
Finish and material level
Basic, mid-range and premium finishes move both the renovation baseline and the design allowance together.
Layout and wet-area changes
Moving walls or wet areas adds drawings, approvals and coordination — this is usually where the design uplift earns its keep.
Rooms and scope in play
A single room needs far less coordination than a whole home meant to read as one consistent look.
A budget range you can plan around
Most homeowners get a quotation before they've decided what they can actually afford. Running the numbers first means the conversation with a designer or contractor starts from a realistic range, not a guess.
A range is a guide, not a quotation.
The estimate covers the whole project — design, materials and construction together. What you pay depends on the scope of work, number of rooms, drawings required, revisions, materials chosen and the level of site coordination involved.
Lean toward the higher end of the range if the property is older, needs layout or wet-area changes, or if several rooms need to work as one consistent look. A single like-for-like refresh usually sits closer to the lower end.
Before comparing quotations, ask for an itemised cost breakdown. Check what's included — such as drawings, revisions, material selection, site visits, contractor coordination and variation work.
Where to look next
For a general explanation of how design and build fees are actually charged, see our interior design cost guide. If your project is centred on one room, our kitchen interior design, bedroom interior design, living room interior design and bathroom interior design guides cover what usually drives that budget specifically.
Interior design cost calculator FAQs
Does this estimate include the interior design fee?
Yes. It is a single estimate for the whole project — design, materials and construction together — rather than a separate figure just for a designer's fee. How that total is later split between design work and construction depends on the scope agreed for your project.
Can I use my own contractor?
Often, yes. Agree in advance who is responsible for measurements, drawings, site supervision, coordination, defects and changes. The calculator does not assume a particular contract arrangement.
Are the estimates suitable for Kuala Lumpur and Selangor?
They are intended as early planning ranges for Kuala Lumpur, Selangor and the Klang Valley. Access rules, management requirements, site condition, materials and scope can move the final price significantly.
How accurate is the result?
Treat it as an early budget estimate, not a quotation. Your actual cost can only be confirmed after the site has been measured and the scope, drawings, materials and specifications are clear.
What should I do after getting an estimate?
Use it to sense-check your budget before speaking to us. Send a few photos, your property type and the rooms involved, and we can help you refine the scope and confirm a more accurate number.
Turn the estimate into a workable brief
Send a few photos, your property type, the rooms involved and your rough budget. We'll help you separate the renovation scope from the design and coordination decisions that may affect the total.
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