The oldest building in Smethwick is The Old Church which stands on the corner of Church Road and The Uplands. This was consecrated in the 1730s as a Chapel of Ease in the parish of St Peter, Harborne. The building was originally referred to as "Parkes' Chapel" in honour of Mistress Dorothy Parkes who left the money for the church and also for a local school. The chapel was later called "The Old Chapel".
In 1961 the Sikh community bought the Congregational Church on the High Street in Smethwick. Soon after, this was converted into a Gurdwara (Sikh Temple). The Guru Nanak Gurdwara Smethwick is said to be the oldest and now the largest Gurdwara in Europe.
There is a collection of red brick turn-of-20th century terrace, 1930s semi-detached, newly built modern housing, and a number of high rise blocks of flats. Other estates and areas include Black Patch, Cape Hill, Uplands, Albion Estate, Bearwood, Londonderry and Rood End.
The Grade I listed Galton Bridge encompasses the New Line canal and railway. When constructed in 1829 by Telford, it was the longest single-span bridge on the planet. Its name commemorates Samuel Galton, a local landowner and industrialist. It is precisely the same design as Telford's bridge at Holt Fleet over the River Severn built in 1828 and opened in 1830.
Council housing started in Smethwick after 1920 on land formerly belonging to the Downing family, whose family home became Holly Lodge High School for Girls in 1922. The mass council house building of the 1920s and 1930s also involved Smethwick's boundaries being extended into part of neighbouring Oldbury in 1928.