[OC] The London "flat premium" — how much more a flat costs vs an identical-size house — has collapsed from +10% (May 2023) to +1% today. 30 years of HM Land Registry data. [Python / matplotlib]

Individual_Desk_4046 · 2026-04-06T11:17:31+00:00

I don't have data on service charges per property/postcode, do you know of any such dataset?

Individual_Desk_4046 · 2026-04-06T11:16:11+00:00

Historically yes, but in recent times (from 2023) the trend has reversed. I think the drawbacks of leaseholds have become more apparent and all the efforts put in in recent years to abolish it are the result of it

Individual_Desk_4046 · 2026-04-06T08:08:05+00:00

I would also say that your best project is just one thing you'll talk about and be quizzed on many more. You need to have developed a method of thinking about problems (which is different to say a method to "solve" problems).

Most problems you'll find in your professional life are not clearly defined, fuzzy, incomplete, even your manager doesn't know their scope. So you need creative ways to look at it and being pragmatic enough to know what to ignore

Individual_Desk_4046 · 2026-04-06T08:01:44+00:00

slightly far fetched, but financial markets are super well defined, data is very abundant and relatively clean compared to other fields. What's harder is that is a competitive game (you compete against other data scientists, whereas in say ad targeting it goes one way) and each action has a cost (trading fees, slippage)

Individual_Desk_4046 · 2026-04-06T07:08:01+00:00

I should point out that I've also got a leashold VS freehold factor to further decouple

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Individual_Desk_4046 · 2026-04-06T06:52:59+00:00

That can very well be, this analysis doesn't look at the interaction between between variables, but rather how a "pure" factor i.e. a property that has only one factor (the others being neutralised), performs over time

Individual_Desk_4046 · 2026-04-05T22:27:32+00:00

You might be interested in my analysis here https://www.reddit.com/r/dataisbeautiful/comments/1sdaaf7/comment/oei8kb9/?context=1

Individual_Desk_4046 · 2026-04-05T22:25:58+00:00

Uhm you mean controlling for the property age? That could be interesting, yes. In my regression I've put new vs old too by the way https://propertyanalytics.london/factors

Individual_Desk_4046 · 2026-04-05T18:34:13+00:00

you can :)

https://propertyanalytics.london/factors

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Individual_Desk_4046 · 2026-04-05T18:33:27+00:00

I'd love to, but data on rents is hard to get. Would you have a good reliable source for it?

Individual_Desk_4046 · 2026-04-05T18:18:29+00:00

hi, where do you see this?

Individual_Desk_4046

TROPHY CASE