Your renovation deserves a supervisor.
Not a 40% markup.

RenoGent gives Singapore HDB homeowners designer-level renders, compliance checks and contractor supervision — inside the WhatsApp you already use. The agent does the coordination; you approve everything external or irreversible — and routine decisions graduate to the agent as it learns you.

See how it works View the code
2,171real WhatsApp messages it was built on
9 monthsof a real renovation dispute, distilled
0 new appsdrafts in your private WhatsApp console — nothing sent until you approve

RenoGent was born from a real 9-month renovation dispute — 2,171 messages between a homeowner and an interior design firm, peaking at 715 messages in a single crisis month. Every promise that slipped, every spec that silently changed, every "can one lah" that couldn't — that's the job this agent was built to do better.

How you use it

No new app. Four steps in WhatsApp.

Renovation coordination in Singapore already lives in WhatsApp. So does RenoGent — it drafts inside your private console, and nothing reaches contractors until a human approves. Every approval is also a lesson: over months, your decisions train an agent that can make them for you.

1

Link once

Scan a QR from your phone — the exact same gesture as WhatsApp Web. That's the whole install.

2

Create your family console

A WhatsApp group for your household. Group membership is the permission system — either spouse can feed the agent and approve its actions.

3

Feed it your plans

Drop your floor plan and a one-line brief. Get back an audited render proof shot, structural fact layer, and green/amber/red compliance triage with verbatim HDB citations. Today’s passed proof shot is the kitchen; other rooms are surfaced as audit escalations when they do not pass.

4

Supervise on autopilot

The agent watches your contractor group, logs every promise, chases every slip — and drafts the message. You reply ok to send it as yourself.

Renders you can verify

The kitchen render is audited against your floor plan.

AI renders love to invent windows and stretch rooms. RenoGent doesn't get to: the passed kitchen render is hash-paired to a stamped copy of your plan showing exactly where the camera stands — then machine-audited in three ordered layers.

Floor plan with camera position marker and view cone for the kitchen render
1 · The viewpoint plan. Red dot = where the camera stands, cone = what it sees, stamped with the render's content hash #93fc293b. The pair can't be mixed up.
AI render of the HDB kitchen after one audit-driven re-edit
2 · The audited render. Kitchen, homeowner's brief: oak vinyl, warm ivory, beige counters. Hash #93fc293b matches the plan above — this is the surgically re-edited pass after the audit rejected the first attempt.
The three-layer audit — ① components: every wall, door, window, beam and column reconciled against a manifest traced from your plan; ② depth & scale: room proportions checked against the plan's printed dimensions; ③ style & HDB typology. Fail layers 1–2 and the render is re-edited or escalated to you — never silently shipped.
In your WhatsApp

What it actually looks like.

Four moments from the pipeline: brief → verified kitchen render, catalog → a decision you can make in ten seconds, the agent speaking as you in the contractor group, and the Monday report.

Who’s speaking? You and the agent share one WhatsApp account — so in the console, every agent message is prefixed 🤖, and only humans type bare text. In the contractor group it flips by design: approved messages carry no marker, because there they are you.
Staged recreation (names invented) — the message flow, approval gate and ledger behaviour match the live system exactly.

Capabilities

The agent executes. The human decides.

📐

Fact layer

Your floor plan becomes an immutable, metric-grounded ground truth: mm/px calibration from printed dimensions, per-room structural briefs, every overlay diff-checked against it.

🎨

Design & render

Structure-locked room renders constrained by your actual walls, windows and HDB typology — generate → audit → surgical re-edit, in a loop. Kitchen is the current passed floor-plan proof shot.

👤 you sign off on taste
🚦

Compliance triage

Green / amber / red against a scraped hdb.gov.sg corpus. A citation gate rejects any rule quote that doesn't match the source verbatim — no hallucinated regulations.

🛒

Procurement that learns you

Contractor sends a 40-page catalog? You get a top-3 with pros & cons. After a few picks the agent learns your decision profile and decides for you — stating its reasoning, one word to confirm. The path from proposer to decision maker, one domain at a time. Scope compiles into line-item RFQs with a shortlist of HDB DRC-registered contractors matched to the works.

👤 confirm → veto, as trust graduates
📒

Supervision & the promise ledger

"Tiling done by Friday" gets logged the moment it's said. Slippage detection is mechanical; chase messages are drafted for you and sent as you. Every Monday: progress, blockers and budget-vs-cap in one report — reply report for it any time.

👤 nothing sent without your ok
🔒

Privacy by whitelist

The agent subscribes to exactly two chats — your family console and your renovation group. Everything else is dropped at the event entry point: not read, not parsed, not stored.

What you buy

Three packs. The homeowner pays — not a markup.

📐

Reno Brief Pack — S$99 one-time

Floor plan → verified fact layer, audited kitchen render proof shot, audit escalations for rooms that fail, green/amber/red compliance triage with verbatim HDB citations, line-item RFQ + DRC contractor shortlist.

📒

Reno Supervision — S$199/mo

The WhatsApp promise ledger: every commitment logged, slippage chased with human-approved drafts, Monday report with progress, blockers, budget vs cap and acceptance checklists.

📋

Dispute Pack — S$299

When it's already gone wrong: timeline reconstruction from your chat history, promise ledger export, and an evidence bundle — built from the same pipeline that parsed our 2,171-message dispute.

🔐 The trust model

  • Runs inside your own WhatsApp — no separate bot number, no platform in the middle
  • Family console group = access control; either spouse approves
  • Whitelist of 2 chats; all other conversations never enter the pipeline
  • Every outgoing message passes a human approval gate — by design, the automation channel physically cannot release a live message

⛔ The boundary that never bends

RenoGent is decision support. It does not replace licensed professionals:

  • Structural works — executed by HDB-registered contractors, under permit
  • Permits & submissions — licensed pros, always
  • Final sign-off on anything irreversible — the homeowner, always