Please provide a time series graph showing the high, low, and average quantum of transactions for semi-detached 999-year leasehold or freehold properties over the past five years.

EdgeProp’s public articles and tools do not publish a ready-made breakdown of high, low and average transaction quantum specifically for semi‑detached 999‑year leasehold and freehold houses, year‑by‑year over the last 5 years, so I cannot give you an accurate numerical time series in this format. However, you can generate this yourself on EdgeProp and then plot the graph.

Here is how to do it using EdgeProp’s analytics:

1. Go to EdgeProp “Latest Transactions / Analytics”
- Use the analytics section where you can filter by property type, tenure and date range.

2. Set filters
- Property type: Landed → Semi‑Detached
- Tenure: Freehold and 999‑year leasehold (you may have to run these as two separate queries if tenure is a single‑select filter).
- Transaction type: Sales (residential)
- Date range: from 5 years ago to now.

3. Extract yearly (or quarterly) stats
For each year (or quarter) in the last 5 years:
- Download or export the list of transactions.
- In your spreadsheet or BI tool, compute for each period:
- Low quantum: minimum transacted price in that period.
- High quantum: maximum transacted price in that period.
- Average quantum: average (mean) transacted price in that period.

4. Create the time series graph
- Horizontal axis: year or quarter over the last 5 years.
- Plot three lines on the same chart:
- Line 1: Low quantum
- Line 2: Average quantum
- Line 3: High quantum
- If you separated freehold and 999‑year, you can:
- Either have two charts (one for each tenure), or
- Plot six lines (high/low/average for each tenure) and distinguish by colour and line style.

5. Optional refinements
- Exclude “outlier” deals (for example, exceptionally large land plots or redevelopment sites) if you want a graph more representative of typical family‑home purchases.
- You can instead work with price per square foot on land if you prefer to normalise by land size, but from your question you are focusing on absolute quantum, so stick to the transacted price.

If you like, tell me whether you want the series yearly or quarterly, and whether you want to separate 999‑year and freehold, and I can describe the exact filter and export steps on EdgeProp in more detail so you or your analyst can build the graph.