You own a brownstone in Brooklyn. The facade needs work. Maybe the mortar is crumbling. Maybe the stone is spalling. You know it’s time to fix it. But then someone mentions the LPC, and suddenly everything feels complicated.

Here’s the thing. The Landmarks Preservation Commission isn’t there to stop you from fixing your home. They’re there to make sure it’s done right. And if you know how to get LPC approval in Brooklyn, the process is much smoother than you’d think.

This guide walks through exactly what you need to do in 2026. From checking your property status to submitting applications, we’ll cover the steps so you can get your brownstone facade work approved and underway.

Step 1: Determine If Your Project Requires LPC Approval

Not every brownstone in Brooklyn falls under LPC jurisdiction. Before you do anything else, you need to know where your property stands.

Start with the NYC LPC map. It’s an online tool that shows exactly which buildings are designated landmarks and which sit within historic districts. Enter your address, and you’ll see your status in seconds. If your property isn’t designated, you can proceed with standard Department of Buildings permits. If it is, you’ll need to work with the LPC.

Determine if construction required LPC approvals by asking two questions. First, is your property designated? Second, what kind of work are you planning? Minor repairs that match existing materials often follow a simpler path. Major alterations that change the look of your building face more scrutiny.

The LPC permit Search tool lets you look up past approvals for similar projects. Seeing what others have done can give you a sense of what’s possible. But don’t rely on that alone. Every project is different.

NYC Landmarks Preservation Commission guidelines spell out what’s allowed and what’s not. The short version is this: repairs good, alterations complicated, replacement of historic features requires strong justification. 

Step 2: Understand LPC Permit Types and Their Requirements

Once you confirm your property needs LPC approval, the next question is what kind of approval you need. The LPC uses different review pathways depending on your project scope.

Here’s a quick breakdown of the main permit types:

LPC approved panels are often required for projects that involve visible materials. You might need to create test panels showing your proposed mortar color, stone patching, or paint samples so the commission can see exactly what you’re proposing before approving the full job.

LPC Windows get their own category because they’re such a defining feature of brownstones. Repair is almost always preferred over replacement. If windows are beyond saving, you’ll need to prove it and match the original design exactly.

The LPC guidelines for each permit type are detailed, but the principle is same. The more your project preserves what’s there, the smoother the approval.

Step 3: Hire the Right Professionals

You could try navigating the LPC process on your own. People have done it. But the ones who succeed usually have one thing in common. They brought in people who’ve done it before.

Approved providers for Brooklyn LPC aren’t officially certified by the commission, but the term refers to architects, contractors, and expeditors with a track record of successful applications. These are the firms that know what the reviewers want to see because they’ve submitted dozens of projects over the years.

The list of approved supervisors for LPC in Brooklyn isn’t published anywhere officially, but you can build your own by looking at past approvals. Search the LPC approval search tool for projects similar to yours and note which firms filed them. Those are the ones who know the system.

LPC board approved supervisors refers to the individuals overseeing your project who will interact directly with the commission. They need to understand not just construction, but preservation philosophy. They have to explain why your approach respects the historic character of your building.

NYC LPC Portico is the online system where applications get filed. If your team hasn’t used it before, they’ll be learning as they go. That’s not what you want. Ask potential hires about their experience with Portico specifically. The platform has its own quirks, and familiarity matters.

A good team doesn’t just file paperwork. They help you make decisions early that keep your project moving. They’ll tell you when an idea is likely to get rejected before you spend time developing it. That kind of guidance is worth paying for.

Step 4: Prepare and Submit Your LPC Application

With your team in place, it’s time to put together the actual application. This is where details matter.

Start with the Request for Evaluation form, or RFE. It’s the standard way to ask LPC whether your proposed work meets their guidelines. You’ll need to describe exactly what you plan to do and why.

Photos are crucial. Clear, well-lit images of the existing conditions showing every area you plan to touch. The commission wants to see the deterioration you’re addressing. If they can’t see the problem, they won’t approve the fix.

LPC Permit Guidebook is your friend here. The latest edition spells out exactly what documentation different project types require. Follow it closely and you’ll avoid common mistakes that delay approvals.

Material samples and test panels may be required, especially for visible work like brownstone patching or mortar matching. LPC approved panels created in advance show the commission exactly what the finished product will look like. It’s easier to approve something they can see than something they have to imagine.

LPC approval isn’t guaranteed just because you filed. The review process takes time, and requests for revisions are common. But a complete, well-documented application moves faster than one that makes them guess. 

Step 5: What to Expect During the Review Process

You’ve submitted your application. Now you wait. But you’re not just sitting around doing nothing.

The review timeline depends on what you’re asking for. A simple Permit for Minor Work might get approved in a few weeks. A Certificate of Appropriateness with major alterations can take months, especially if it needs to go before the full commission.

During this time, LPC may come back with questions or requests for more information. Maybe they want to see additional photos. Maybe they’re concerned about a particular detail. Maybe the material sample you submitted doesn’t quite match what they’re looking for. This is normal. It’s not a rejection, it’s a conversation.

Brownstoner LPC approval time varies wildly, which is why starting early matters. If you wait until spring to apply for a summer project, you might be disappointed. Build in buffer time. Assume things will take longer than you hope.

LPC approved status means you can move forward. But keep that approval letter handy. You’ll need it when applying for DOB permits and possibly when explaining your project to future buyers.

Step 6: Post-Approval Considerations

You got the approval. Congratulations. But the paperwork isn’t quite done yet.

Some facade projects need Department of Buildings permits in addition to LPC approval. Structural work, major alterations, or anything affecting the building’s systems may require DOB review. Your contractor should know when this applies and handle the coordination. Don’t assume LPC approval is the only green light you need.

Keep all your documentation. Every approval, every letter, every email. When you sell your brownstone someday, potential buyers or their attorneys may ask about work done to the facade. Having the paperwork ready shows everything was done properly and legally.

Brownstone facade restoration work should follow the methods and materials you described in your application. If something changes during construction, document it. Small deviations might be fine, but major ones could require revisiting the commission.

The goal isn’t just to get approval. It’s to do work that respects your building’s history while making it sound for another hundred years. Follow through on what you promised, and your brownstone will be better for it. 

Conclusion

Getting LPC approval for your brownstone facade comes down to six steps. Check your property status on the NYC LPC map. Understand which permit type applies to your project. Hire professionals who know the system. Prepare a complete application with photos and material samples. Be patient during the review process. Keep your documentation after approval. Follow each step and the process stays manageable instead of overwhelming.

If you’d rather not navigate all this alone, Liyana Construction NYC can help. We provide professional Brownstone Restoration Services that handle every permit, every document, and every approval so your project goes as smoothly as possible.

Call us at (917) 554-8282 to learn more.