Yangon's CBD is known for its leafy avenues and fin-de-siècle architecture. The former British colonial capital has the highest number of colonial period buildings in Southeast Asia. The CBD is still mainly made up of decaying colonial buildings. The former High Court, the former Secretariat buildings, the former St. Paul's English High School and the Strand Hotel are excellent examples of the bygone era. Most buildings in the CBD from this era are four-story mix-use buildings with ceilings, allowing for the construction of mezzanines. Despite their less-than-perfect conditions, the buildings remain highly sought after and most expensive in the city's property market. In 1996, the Yangon City Development Committee created a Yangon City Heritage List of old buildings and structures in the city that cannot be modified or torn down without approval. In 2012, the city of Yangon imposed a 50-year moratorium on demolition of buildings older than 50 years. The Yangon Heritage Trust, an NGO started by Thant Myint-U, aims to create heritage areas in Downtown, and attract investors to renovate buildings for commercial use.
The pattern of south to north roads is as follows: one broad wide broad road, two narrow streets, one mid-size street, two more narrow streets, and then another wide broad road. This order is repeated from west to east. The narrow streets are numbered; the medium and broad roads are named. For instance, the Lanmadaw Road is followed by -wide 17th and 18th streets then the medium Sint-Oh-Dan Road, the 30-foot 19th and 20th streets, followed by another wide Latha Road, followed again by the two numbered small roads 21st and 22nd streets, and so on. The roads running parallel west to east were the Strand Road, Merchant Road, Maha Bandula Road, Anawrahta Road, and Bogyoke Aung San Road. The CBD's road layout follows a grid pattern, based on four types of roads:
Broad 160-foot wide roads running west to east
Broad 100-foot wide roads running south to north
Two narrow 30-foot wide streets running south to north
Mid-size 50-foot wide streets running south to north
Since February 2010, pickup truck bus lines have been forbidden to run in 6 townships of the CBD, namely Latha, Lanmadaw, Pabedan, Kyauktada, Botahtaung and Pazundaung Townships. In May 2003, a ban on using car horns was implemented in six townships of The CBD to reduce noise pollution. In April 2004, the car horn ban was expanded to cover the entire city.
