Labby Manor was founded in the 17th century as a part of Ronnas Manor. The present main building was built in the 19th century, and was transferred to Labby after the 1860s. Nowadays, the manor is used for organic farming.

The owners of Laha Manor are known since 1608, and it became a manor in 1828. The main building was probably built in the end of the 18th century in the Gustavian style.

The history of Lahdentaka Manor dates back to the 15th century, and the owners are known since 1627. It became a manor in the 17th century. The present main building was completed in 1787, and the current Neo-Renaissance appearance dates from the 1880s. A tower was added during the remodeling, however, it was removed in the 20th century. The building has been restored and remodeled in 1925 and 2002.

The owners of Langansbole Manor are known since 1540. It was called as Bole Manor until the 18th century. The present main building was built in 1910 replacing an earlier main building which was built in the 1870s and destroyed by fire in 1909.

The history of Lapila Manor is known since the beginning of the 17th century. It was a part of Kerava Manor until 1745. The present main building was built in the 19th century. It has been damaged by fire, and reconstructed in the style of the 1920s. Lapila Manor is owned by Kerava town since 1962.

The history of Laupus Manor dates back to the 15th century, and the owners are known since 1569. The present main building was built in 1918-1919 in a mix of architectural styles with elements of Art Nouveau, German and English cottage style, and National Romanticism. The granary was built in 1867-1868. The manor is used for conferences and private parties at present.

The owners of Lauttasaari Manor are known since 1624. The present main building was built in 1837 in the Empire style, and the current appearance is from the reconstruction in 1929. The manor is owned by the city at present.

Lehtinen Manor was founded in around 1580, and the owners are known since 1582. The present main building was built between 1852 and 1873. The manor has ruins of a castle which was built in 1580s and destroyed by fire in the middle of the 17th century.

Lindo Manor was originally known as Golto or Gullo, but it has been called as Lindo since the 1580s, and the owners are known since the early 16th century. The main building was originally built in the 1730s. It has been enlarged afterwards, and a major extension was made in 1828-1829. However, it was completely taken down, and rebuilt in the end of the century. The roof was remodeled in 1904. The building was reconstructed and remodeled in 1934-1936, and it has neoclassical elements.

Linna Manor became a manor in 1643. The present main building was built in the end of the 18th century. The appearance has been changed when it was reconstructed in 1843 in the neoclassical style. The building stands by the river, and is surrounded by large park.

Lomnas Manor was founded in 1810, and the owners are known since that year. The Empire-style main building was restored in 1921. The garden was originally created in 1834.