Blackalogy Interior · Singapore

Singapore’s Transparent Interior Design Experience.

No hidden markups. No inflated renovation costs. Just transparent trade pricing and exceptional interior design.

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Professional fee

SGD 4,500

or 10% of renovation cost, whichever is higher. Trade prices stay between supplier and homeowner.

Why Choose Blackalogy

A calmer way to design and renovate your home.

We separate design expertise from renovation markups, so every decision is clearer, better documented, and easier to trust.

Cost-to-Cost Pricing

Homeowners pay trade prices directly, while we charge one clear professional fee.

Premium Interior Design

Warm modern spaces, refined material palettes, and details tailored for Singapore homes.

In-house 3D Visualisation

Understand the look, flow, and cabinetry details before renovation begins.

Dedicated Project Management

One accountable team coordinates suppliers, site updates, and finishing details.

Featured Projects

Quiet luxury for real Singapore homes.

HDB

Condo

Living Room

Kitchen

Bedroom

Bathroom

Warm HDB Living

Dining Nook

Calm Bedroom Suite

Condo Lounge

Stone Bathroom

Modern compact kitchen and utility detail

Kitchen Detail

Warm HDB Living

Calm Bedroom Suite

Stone Bathroom

Dining Nook

Condo Lounge

Kitchen Detail

Warm HDB Living

Stone Bathroom

Condo Lounge

Calm Bedroom Suite

Dining Nook

Kitchen Detail

How Our Cost-to-Cost Model Works

Transparent renovation economics, designed around homeowners.

Instead of hiding margins inside renovation packages, Blackalogy separates supplier costs from professional design and project management fees.

Traditional Interior Designer

Supplier

Interior Designer Markup

Homeowner

The true trade cost is often obscured inside bundled renovation pricing.

Blackalogy Interior

Supplier

Homeowner Pays Trade Cost

Professional Design Fee

You see the trade price directly, and our fee is stated upfront: SGD 4,500 or 10%, whichever is higher.

Client Testimonials

Designed with taste. Delivered with clarity.

"I want to give a shoutout to Billy for his hard work and professionalism. 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. Highly recommended!"

HDB homeowner, Tampines

"Thank you Billy and Blackalogy for their honesty and transparency. No hidden markups... and you can clearly see where your money is going in their cost to cost model.... billy is knowledgeable and always willing to explain things properly. Their approach also gave me a lot of confidence. Overall, a smooth and stress-free experience. I recommend!"

Condo owner, River Valley

"We are extremely happy with the final outcome and truly appreciate the effort and dedication Billy put into the project.

We would highly recommend Billy and Blackalogy to anyone looking to elevate their space, regardless of the size of the project."

Maisonette owner, Bishan

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