Zuidstraat 84, Den Helder — Digital Lighthouse Case Study

Digital Lighthouse — Case Study #1 — Active experiment

Zuidstraat 84, Den Helder

This page documents a live field experiment. It does not claim results. It records what happened, when it happened, and where it came from.

Section 1

Why this property was chosen

This property contains multiple underused information assets. Digital Lighthouse is testing whether making those assets easier to discover creates measurable buyer interest.

AddressZuidstraat 84, Den Helder

Asking price€249,500 k.k.

Living area140 m²

Plot size105 m²

ZoningMixed use

GardenYes — SW facing

Rear accessYes

Roof orientationSouth facing

Architect plansPrepared for units 84 and 84A

Comparable active listings in Den Helder indicate a broad price range for project properties. Zuidstraat 84 is being tested as a case study because it combines multiple factual attributes that are not clearly communicated through a standard Funda listing.

Section 2

Baseline

weeks on market before experiment

viewings generated

AI search presence

Realtor: Laan Makelaars. Fee: fixed €3,000. Distribution: Funda listing only. No buyer persona targeting. No paid discovery layer. No presence in Perplexity, ChatGPT, or Gemini for relevant buyer search queries.

Section 3

Live experiment status

Research complete — June 23 2026

Landing page live — June 23 2026

Data collection active — Day 1 of 21-day organic test

First qualified lead — pending

First qualified viewing — pending

Section 4

Digital Lighthouse experiment

Hypothesis

An AI-first discovery layer — content structured for conversational search engines rather than Funda filters — can generate measurable buyer interest that traditional property marketing does not reach. This experiment tests whether that interest is real, attributable, and repeatable.

Phase 1: 21-day organic test. Zero paid spend. If organic produces zero qualified enquiries by Day 21, a paid discovery layer activates. All leads route directly to Laan Makelaars. Digital Lighthouse does not act as a realtor and does not handle property transactions.

Section 5 — Graph 1

Before vs after — viewings

Baseline confirmed at 2 viewings in 6 weeks. Experiment tracking from June 23 2026.

Right bar updates as viewings attributed to Digital Lighthouse discovery are confirmed.

Section 6

How results are measured

Six-stage funnel. Each stage requires independent confirmation before a number is recorded.

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Discovery
visits

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Intent
plan req.

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Enquiry
qualified

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Viewing
booked

—

Offer
received

—

Sale
closed

Dashes indicate data not yet received. Numbers update manually as events are confirmed.

Section 7

Attribution

Every enquiry is logged with a source. Without attribution the experiment cannot demonstrate causation.

Funda

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Google search

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Perplexity

—

ChatGPT

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Gemini

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Referral

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Direct URL

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Other

—

Section 8

Timeline

23 Jun 2026

Research completedconfirmed

Market data, buyer personas, realtor digital audit, GEO visibility assessment

23 Jun 2026

Landing page liveconfirmed

digitallighthouse.online/zuidstraat84 — three buyer personas, GEO-optimised, HubSpot form to Laan Makelaars

23 Jun 2026

Organic test period beginsactive

21 days. Zero paid spend. GA4 and HubSpot tracking all visits and enquiries.

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First AI referralpending

First visit from Perplexity, ChatGPT, Gemini, or Google AI Overview

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First enquirypending

Source logged on receipt

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First architect plan requestpending

Strongest intent signal in the funnel

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First qualified viewingpending

Viewing booked via Laan Makelaars following Digital Lighthouse discovery

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Day 21 reviewpending

Organic test concludes. Data reviewed. Decision on paid layer if needed.

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Day 30 evidence reviewpending

All five measurement questions answered. Case study published in full.

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Salepending

If and when it occurs — source attributed

Section 9 — Graph 2

Full funnel dashboard

Cumulative totals by stage. Updates as data is confirmed.

Evidence criteria

What this experiment must answer

Did AI discovery generate traffic that Funda did not?pending

Did buyers engage with persona-specific content?pending

Did it generate qualified enquiries?pending

Did it generate qualified viewings?pending

Did it outperform doing nothing?pending

All enquiries route directly to Laan Makelaars, Den Helder. Digital Lighthouse does not act as a realtor. This page is updated manually as data is received and verified. Last updated: June 23 2026.