A Gift to Ireland — Building IrelandPropertyData
Live site: www.propdata.ie
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
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 and Terms for full details.