Yes this was intentional. Obviously rents and property inflation are not a straight or linear line and tend to go up in "steps and stairs". We have used a low level for property price inflation as mentioned in the documents and rents generally outstrip property price inflation. For example, there are restrictions on student property in a number of towns (look up Article 4) which means while the value of the property could be seen to increase in line with national and local price inflation, rents can go up considerably more depending on supply and demand. Again our 3% airs on the cautious side.

While it is impossible to tell the future, your figures are certainly possible. Some research into property price inflation over the past 30 years may show that this is on the low side. Also researching some of the properties that Kexgill have owned for more than 30 years and sold recently would project figures far in excess of your figure.

Important update
After listening to the community we have great news to announce!
In addition to the buy back and burn policy we are now also offering a profit share to anyone who takes part in the ICO or that holds Kexcoin at the end of the buy back / burn period. If you do both, you benefit twice!
So how will it work?
When the ICO ends, we will take a snap shot (within 48hrs of ending) of all of the accounts that hold Kexcoins on the bitshares network making note of the account and the sum of Kexcoin held.
The ICO will be deemed to have ended either by selling out of Kexcoin or reaching the end date (14.59 UTC 14th October 2017).
In order to qualify you must hold Kexcoin on account at the time of this snapshot.
OR
You hold Kexcoin at the end of the buy back / burn period (again a snap shot will be taken).
If you hold Kexcoin at the point of both snapshots you will benefit twice.
What is the profit share?
The profit share will be calculated as 50% of the increase in property value from the initial purchase price.
Simple example - if £50m of property is initially purchased and by the end of the buy back period the said property is valued at £110m the sum paid back to ICO participants and Kexcoin holders at the end of the buy back period would be £30m (£110m - 50m = £60m x 50% = £30m) Please note taxes and costs of sale would be deducted.
How will this be distributed?
The number of Kexcoin sold at the ICO and the number held at the end of the buy back period will be added together and the profit share will be divided equally by this number. It will then be paid to the accounts noted on the snapshots.

This is our thanks to all that support us and participate in the project.
 

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Are these costs included in the 25-30% of gross figure you gave me earlier?

I think you have some confusion as to the day to day running costs against the actual set up.
In order to begin the project we need to purchase the properties. There are a number of costs to doing this such as legals ect. We would regard these as set up costs and should be seen as one off costs.
Once the properties are purchased they then start to generate a profit and require management / costs which we referred to earlier. These costs are ongoing as you would expect.
The percentage return that we generate on a certain property will depend upon both of these costs (set up costs and ongoing costs). Gross profits would take into account the one off costs and net profit would take into account the management / reoccurring costs.