
Research & Data Collection
Finding, judging and reporting the data behind a decision.
Every real-estate decision rests on data — and bad data sinks good projects. Learn the sources (libraries, archives and the internet) and how to find and evaluate them for reliability; the ethics of real-estate research; the methods of data collection — primary (observation, interviews, questionnaires, sampling) and secondary; and writing it up with a clear outline, referencing and presentation. The research discipline, pointed at the property market.
Learning objectives
By the end of this lesson, you will be able to — mapped to the course outcomes for Real Estate Management:
Find and evaluate sources — library, archive and internet — for reliability.
Apply research ethics to real-estate data.
Choose primary and secondary data-collection methods.
Write up and present a real-estate research finding with references.
Sources, reliability & ethics
Judge every source by evidence, not availability — a registered transaction beats a brochure asking price; and honest research, with disclosed assumptions, can and should kill a bad project.[1, 2]
Judge what you use
Real-estate research draws on LIBRARIES and ARCHIVES (records, deeds, plans, statistics) and the INTERNET (listings, portals, news, government data). The internet brings new information fast, but also MISUSE — asking prices passed off as transacted prices, biased developer data, stale listings. Judge every source on AUTHORITY, CURRENCY, RELEVANCE and EVIDENCE: a registered transaction beats a brochure, a government dataset beats a forum post. MISCONCEPTION→correct: 'if it's online it's reliable' — weight a source by its evidence and independence, not its availability; an asking price is not a sale price.[1]
Collecting & reporting data
Most research combines secondary data to frame the market with primary fieldwork to ground-truth it; then a clear outline, consistent referencing and an up-front headline make it usable.[2]
Collect it, or find it
Data is PRIMARY (you collect it first-hand) or SECONDARY (already published). PRIMARY methods: OBSERVATION (counting footfall, surveying a site), INTERVIEWS (brokers, buyers, officials), QUESTIONNAIRES (structured surveys of demand), and SAMPLING to make a manageable survey represent the market. SECONDARY sources: census and economic statistics, registry and transaction data, market reports, planning documents. Most real-estate research COMBINES both — secondary data to frame the market, primary fieldwork to ground-truth it.[2]
At a glance
| Aspect | Detail | Note |
|---|---|---|
| Primary data | Observation, interviews, survey | Collected first-hand |
| Secondary data | Statistics, registries, reports | Already published |
| Source weight | Registered transaction, govt data | > brochure, forum post |
| Asking price | Advertised | ≠ transacted (sale) price |
| Honest study | Can kill a project | That is its value |
Key terms
Judge by authority, currency, relevance and evidence — not availability.
What is advertised vs what actually sold — never confuse them.
Honest data, disclosed assumptions, no study bent to a wanted answer.
Collected first-hand / already published.
Studying a representative part to stand for the whole market.
Citing every source consistently so the evidence can be checked.
Studio task
Plan the data collection for a market study of a residential submarket: list two primary methods (e.g., a broker interview script, a footfall count) and two secondary sources (e.g., registry data, a market report), and say how you would check a price you find online against a transacted price. Then write one sentence on why a feasibility study written to justify a decision already made is misconduct.
Self-assessment
1. Which is the more reliable price evidence?
2. Interviewing brokers and surveying footfall on site are examples of —
3. A feasibility study written to justify a decision already made is —
Recap
References & further reading
- [1]Galaty et al., Modern Real Estate Practice — sources, data and disclosure in real estate.
- [2]Kothari, Research Methodology + Peiser & Frej (ULI) — data collection, market research and reporting.
- [3]Miles, Berens & Weiss, Real Estate Development: Principles and Process — the market study and its data.
- [4]RICS / valuation ethics codes — honest, disclosed real-estate analysis.
Further reading
- Galaty et al. — Modern Real Estate Practice.
- Peiser & Frej — Professional Real Estate Development (ULI).
- Kothari — Research Methodology: Methods and Techniques.
Sources gathered and fact-checked June 2026. Published values vary by source, sample and method — treat as indicative and confirm against the cited standard before structural use.
