hilo.build
Get early access

For anyone running a Costa del Sol property on WhatsApp

Your whole project is buried in WhatsApp.

Photos, promises, invoices, permits, snags — scattered across endless chats. hilo.build keeps the WhatsApp you already use and turns the mess into a project record you can find, share and trust.

Get early access See how it works

Marbella

Estepona

Benahavís

hilo.build

Project copilot

No app to install Works inside WhatsApp Source-backed answers Private, shareable passport

How it works

WhatsApp stays where the work happens.

Property work here already happens on WhatsApp. The problem isn't the chat — it's that nothing stays findable once the thread grows. hilo.build sits on top and quietly keeps the record.

01

Start a project in a WhatsApp chat

02

Forward the photos, voice notes, PDFs and messages you already get

03

Get clear answers and ready-to-send replies, backed by real sources

04

Open a shareable Project Passport when it's time to hand over

Who it's for

One messy channel. Everyone who touches the project.

Owners and buyers

See proof, decisions, defects and missing documents even when you're hundreds of miles from the site.

Agents and buyer reps

Turn viewing, diligence, VUT and handover questions into clear next steps you can forward.

Architects

Keep client context, constraints, permits and design decisions in one place instead of chasing old threads.

Builders and reform firms

Keep sending updates on WhatsApp — the snag photos, commitments and status stay on record.

Project managers

Hand over a clean record built from the messages your team already sends.

Early access

Tell us about your project.

We're opening early access to people coordinating property work around Marbella, Estepona, Benahavís and the wider Costa del Sol. Tell us what's messy and what you'd want hilo.build to remember — it shapes what we build first.

No app to install. It works inside WhatsApp.

Built for real projects — buyers, owners, agents, architects, builders and PMs.

Questions before you join

Do I need to install another app?

No. hilo.build works inside WhatsApp. The web part is only the shareable Project Passport and a few lightweight records.

Does this replace my lawyer, architect or builder?

No. It keeps your project memory organized and drafts practical next steps. The professional judgment stays with the right expert.

Where are you starting?

The first projects are around Marbella, Estepona, Benahavís and the wider Costa del Sol.

Is my project information private?

Yes. Your project lives behind a private link you control, and we only use what you send to help with your project.