Kadomatsu（Japanese character;門松）

When it is (New Year January 1 in Japan for the New Year holidays, We attract attention with Kadomatsu(Japanese character 門松） at a house, a store, and the entrance of the company.

We finish a decoration too (previous year) in last year on December 30 on the date of displaying it and greet the New Year.

Details & specifically, please see Wikipedia

Images followings  all are close to my house

                                    Famous restaurant

                                             A university

                                     A big  enterprise   

                                                     My house
In addition;
  Ganjitsu(January1): the day on which the birth of the new year is celebrated.
Nobody works on the first three days of the new year. the period called sanga nichi ,or
shogatsu. Shogatsu originally referred to the whole of January, but now is used just to
refer to these three days.These days, the people go to shrines, visit friends and relatives,
drink sake, and eat special new-year dishes, called osechi .
Shimenawa, sacred rice-straw ropes,are hung across the top of the gateway, which is also
decorated with pine boughs or kadomatsu(gate pines) .
The kadomatsu symbolizes a tree provided for the descent of the gods.
This pines decoration is left in place from January the first to the seventh (until the fifteenth
in olden times), the period referred to as matsu no uchi.
            Quoted from the book "NIPPON THE LAND  AND ITS PEOPLE "                    1984   Nippon Steel Corporation