Subject: Letter allowing permission to tenant to avail of () services
To whom it may concern,
My name is (), owner of the building situated at (address). The person in ownership of this letter gets identified as (), residing in (flat details) of my building.
This letter furnishes authorization of () services concerning altering only the required part of the property. No more than the (specific) area is to undergo the appropriate installation service. As the () service provider, you can readily assist the () tenant with the above-authorized service.
If any queries require further clarification, please report the same to me at (contact details).