> ## Content Index > Fetch the complete content index at: https://fanyang.me/llms.txt > Use this file to discover other available public pages before exploring further. # A Gift to Ireland — Building IrelandPropertyData - URL: https://fanyang.me/a-gift-to-ireland-building-irelandpropertydata/ - Published: 2026-04-19T10:18:50.000Z - Updated: 2026-04-19T10:18:50.000Z - Author: Fan Yang - Tags: Life, #Migrated-1792530774538, #wp, #wp-post, #Import 2026-10-20 21:12 **Live site:** [**www.propdata.ie**](https://www.propdata.ie/?ref=fanyang.me) A free, open Irish property data platform built by one person, for anyone trying to understand the Irish housing market. --- ## What This Project Is PropData.ie brings together seven official Irish data sources into a single, easy-to-use analytics platform. No login. No subscription. No paywall — every feature, every county, every number is free. The site covers: - **699,000+ PPR transactions** from 2010 to present — VAT-adjusted, deduplicated, and searchable - **Rental yield analysis** for all 26 counties and 22 Dublin postcodes, drawing on Daft.ie and RTB/ESRI rent data - **Investment opportunity scoring** — a composite ranking by yield, 5-year price growth, population trends, vacancy, liquidity and FDI tier - **Price percentile checker** — see how any asking price compares to 700k+ real transactions, with optional BER energy rating adjustment - **Housing affordability index** — price-to-income ratios, deposit savings timelines and mortgage burden by county, based on CSO income data - **Official RPPI price trends** — CSO monthly index from 2010 to present, plus price-to-rent ratio history for all 26 counties - **Town and area prices** — sub-county median prices for every town in Ireland - **BER energy ratings** — 1.37 million SEAI certificates, analysed by county, decade of build and rating band - **Dublin postcode data** — rent, yield and price trends for D1 through D24 - **Calculators** — net return after tax and fees, RPZ rent increase limits, mortgage affordability, stamp duty and CGT All data refreshes weekly from public Irish government sources: PSRA (PPR), SEAI (BER), RTB/ESRI (rents), CSO (housing, income, census), BPFI (mortgages) and IDA Ireland (FDI). --- ## Data Sources | Source | What It Provides | | ---------------------------- | --------------------------------------------------------------------- | | PSRA Property Price Register | 699,000+ residential sale transactions, 2010–present | | SEAI BER Public Database | 1.37M building energy performance certificates | | RTB / ESRI Rent Index | Registered rents for new tenancies, quarterly, by county | | Daft.ie | Asking rents and sale prices, quarterly | | CSO PxStat | Housing completions, planning permissions, Census 2022, county income | | BPFI | Mortgage drawdowns and approvals, quarterly | | IDA Ireland | Foreign direct investment county tier classification | --- ## Technology - **Backend**: Python (PostgreSQL, psycopg2, FastAPI) — weekly data pipeline generates static JSON - **Frontend**: Vanilla HTML/CSS/JavaScript — no frameworks, no build step, no cookies beyond a single analytics consent - **Hosting**: A single Linux VPS (\~€15/month) - **Languages**: English and Chinese (中文), fully localised --- ## My Story This project is completely free — because I built it as a gift to Ireland. I arrived in Ireland at the end of 2024\. I had left China and the suffering I experienced there — a place that, at its worst, almost made me feel I could not go on living. I came here with very little: no contacts, no certainty, no clear plan. Just the decision to try again somewhere else. Ireland gave me that chance. Life here is not easy. Everything is difficult in ways I did not fully anticipate — the cost of housing, the paperwork, the loneliness of starting completely from scratch in a country where you know almost no one. But there is something here that I had not had in a long time: the freedom to be my true self. To think what I want, say what I believe, build what I care about — without fear. That matters more than I can easily express. PropData.ie started as something practical. I needed to understand the Irish property market — to find somewhere to live, to think about the future, to make sense of a country I was still learning. I found the data was all publicly available but scattered across a dozen government websites in formats that made it nearly impossible for an ordinary person to use. So I built the tools I wished existed. I am not a company. I am not trying to sell anything. I am one person, still finding my footing in a new country, trying to contribute something useful to the place that took me in. This site is my small way of saying thank you. If it helps you find a home, understand a rental market, or make a better-informed decision about somewhere to live — then it has done what I hoped. --- ## Contact **Fan Yang** Dublin, Ireland [imfan.yang@gmail.com](mailto:imfan.yang@gmail.com) --- *Data from Irish public sector bodies, used under open data licences. All figures for informational purposes only — not financial, investment or legal advice. See* [*Methodology*](https://www.propdata.ie/methodology.html?ref=fanyang.me) *and* [*Terms*](https://www.propdata.ie/terms.html?ref=fanyang.me) *for full details.*