Kolkata, December 18: A commentary by real estate consultancy firm JLL reveals that in 2019, the first three quarters witnessed 14 per cent growth in residential unit sales, which was quite promising when compared with the first three quarters of 2018. Most cities have shown moderately good performance. However, the last quarter of this year didn’t keep up with the growth of the first three quarters. Hence, the year is expected to end at similar levels of 2018. The economic condition, mainly the GDP growth has had a negative bearing on the buyers’ sentiment.