Private Home – Petaluma, California

In this extensive private project, all of the original plaster on the main home was removed and replaced with a NHL base coat and EcoMortar finish coat. For the pizza oven and garage, new structures were built and finished with matching NHL and EcoMortar plasters.

As noted, some photos are courtesy of MAD architecture.

Monadnock Building – San Francisco, California

San Francisco’s Monadnock Building, designed by Frederick H. Meyer, is famous for surviving both the Great San Francisco Earthquake and Fire in 1906 when it was partially constructed, and two separate attempts by the U.S. Army to destroy it with dynamite. Today, this historic building is undergoing restorative repointing using NHL 3.5.

Estudillo House – Old Town San Diego, California

The Casa de Estudillo in Old Town San Diego is a historic adobe house in Old Town San Diego in San Diego, California. Constructed in 1827, it was once considered one of the finest houses in Mexican California. The house has recently been undergoing restoration on the exterior walls. NHL 3.5 and EcoMortar were applied on the outside of the adobe structure.

Casa de Estudillo

Before – By Bernard Gagnon (Own work) [CC BY-SA 3.0 or GFDL], via Wikimedia Commons

Casa de Estudillo Restoration


After Photos Courtesy of von Kurt/Lipsman:

Parliament Buildings – Ottawa, Canada

Natural Hydraulic Lime mortars are being used for the restoration of Canada’s historic Parliament Buildings. This is one of Canada’s largest restoration projects. Construction first started in 1860, and now consists of several buildings. The restoration project first started in 2002 and is now focused on the three core historic buildings, the West Block, Centre Block, and East Block. St. Astier Natural Hydraulic Lime mortar can guarantee that the building will continue to live a healthy life and allow the masonry to behave as it should.


{Source: By Saffron Blaze (Own work) (CC-BY-SA-3.0), via Wikimedia Commons}


Parliament of Brittany – Rennes, France

This masterpiece of XVII century French architecture was nearly destroyed by fire in 1994. Its complete restoration and reconstruction lasted three years, using Saint Astier Natural Hydraulic Lime in all phases of masonry, plaster and render.

Parliament Of Brittany

{Photo by Eusebius (Guillaume Piolle). Licensed under CC BY 3.0 via Wikimedia Commons.}


Pont du Gard – Provence, France

Pont du Gard (Bridge over the Gard River) is a monumental bridge-aqueduct built by the Romans during the first century and is part of the UNESCO World Heritage. It was part of a 30-mile long aqueduct with a remarkable constant slope of 15 inches per mile. The bridge was built without mortar and with local stones, some weighing 6 tons, except for the aqueduct area at the top, where smaller stones and mortar were used. Extensive restoration work took place recently using Saint Astier Natural Hydraulic Limes for the aqueduct and other various stones.


{Photo Credit – Creative Commons}


St. Patrick’s Cathedral, New York City

St. Patrick’s Cathedral is a well-known New York City landmark that is undergoing a large restoration effort. The Cathedral was completed in 1878. Restoration work includes cleaning and repointing all exterior stonework and repairing the stained glass windows. is supplying all of the lime mortar using their Ecologic Mortar (SCG) F, which is made from St. Astier natural hydraulic lime and sand.

All images are courtesy For more information, please visit

Earth Chapel, Hollywood Hills, California

The Earth Chapel project in the Hollywood Hills of California features 3 coats of NHL and 3 coats of limepaint over a burlap canvas earth bag structure.

All images courtesy

Arc de Triomphe, Paris, France

Built by Napoleon the First to commemorate his victories, this monument was completed by King Louis-Philippe. This French landmark went through extensive restoration and maintenance using Saint Astier Natural Hydraulic Limes.


Nelson’s Column, Trafalgar Square, London

Nelson’s Column was built to commemorate the death of Admiral Nelson at the battle of Trafalgar against the fleet assembled by Napoleon. Erected between 1840 and 1843 with Granite from Dartmoor, the column was refurbished in 2006, using Saint Astier Natural Hydraulic Limes for repointing and stone restoration.

Nelson's Column Lime Restoration

Nelson’s Column, Trafalgar Square, London” by EluveitieOwn work. Licensed under CC BY-SA 3.0 via Wikimedia Commons.