– Polhemus Building, 350 Henry Street –
City
New York
Borough
Brooklyn
Building Type
Residential
Service Type
Façade Restoration
About Project
The Polhemus Building, located at 350 Henry Street in Brooklyn, is a landmark structure originally built in 1896. Situated in the Cobble Hill Historic District, the building reflects late 19th-century architectural craftsmanship, featuring a combination of brick masonry, limestone detailing, and decorative cornices that define its historic character.
Over time, exposure to New York City’s harsh weather conditions, moisture infiltration, and aging materials led to visible deterioration across the façade and structural components. MGR Restoration was engaged to perform a comprehensive restoration, ensuring the building meets modern safety standards while preserving its architectural integrity.
This project involved a full-scale façade restoration and interior upgrades as part of the building’s conversion into a 17-unit residential property.
From structural repairs to decorative restoration, the project required a balance of technical expertise and historical sensitivity to maintain the building’s original appearance while upgrading performance and durability.
Restoring a 19th Century Brooklyn Landmark
Built in 1896, the Polhemus Building is part of Brooklyn’s historic architectural fabric. Buildings from this period were constructed using traditional masonry techniques and detailed ornamental elements that require specialized restoration methods.
Working within a historic district means restoration must comply with preservation standards while maintaining the original design intent. This project required careful material matching, precise craftsmanship, and adherence to NYC landmark and building regulations.
Restoring structures like the Polhemus Building is not only about repair. It is about preserving the identity and character of New York’s architectural history.
Scope of Work – Polhemus Building Restoration
This project included a complete exterior restoration and targeted structural improvements across multiple building systems:
Façade Restoration
- Brick façade cleaning and repointing
- Selective brick replacement
- Window caulking and sealing
- Stone masonry cleaning
- CMU wall construction
- Stucco removal and reinstallation
Waterproofing
- Kemper waterproofing of water tables to prevent moisture intrusion
Decorative Elements
- Patina application for decorative copper features
Architectural Stone Work
- Limestone cornice restoration
- Dutchman repairs for damaged limestone
- Limestone patching and surface refinishing
- Installation of new precast stone elements above entrance
Architerctural Metals
- Copper cornice repairs including soldering and realignment
- Restoration of steel cornice support systems
Roofing
- Installation of new SBS roofing system
- Roof pavers installation
- Copper flashing installation
Concrete Work
- Floor leveling for marble installation
Why MGR Restoration Was Selected for This Project
- Experience with landmark and historic buildings across NYC
- Expertise in façade restoration, waterproofing, and structural repair
- Skilled craftsmen specializing in masonry, stone, and metal restoration
- Deep understanding of NYC codes, Local Law 11 requirements, and preservation guidelines
- Ability to execute complex, multi-scope restoration projects with precision
- MGR Restoration delivers projects that balance safety, compliance, and long-term performance while preserving architectural character.
Frequently Asked Questions (FAQs)
What is involved in restoring a historic façade in NYC?
Why is façade restoration important for older buildings?
What is Dutchman repair in stone restoration?
How long does a façade restoration project take?
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Planning a Façade Restoration Project in NYC?
Work with a team experienced in restoring historic buildings, ensuring compliance, durability, and architectural integrity.
