648 Marcy Avenue, Brooklyn, New York City: Duplex Renovation
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Duplex Renovation at 648 Marcy Avenue, Brooklyn, New York City was permitted on May 20, 2026 with a stated construction value of under $1M. Renovation or addition to a duplex. Builtie tracks the project's stage, the trades still being bought and the people who decide.
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The project
| Address | 648 Marcy Avenue, Brooklyn, New York City |
| Project | Duplex Renovation |
| Building type | Residential |
| Work | Renovation or alteration |
| Permit issued | May 20, 2026 |
| Stated construction value | under $1M |
| Estimated stage | Framing |
| Company named on the permit | Seamless Builders Inc. See the decision makers — free trial |
| Decision makers and contacts | See who to contact — free trial |
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Where this project is
- March 18, 2026Alteration: structural work · under $1M
- May 20, 2026Alteration: Duplex Renovation · under $1M (this page)
- May 27, 2026Alteration: plumbing · under $1M
- April 2026Estimated construction start (estimate)
- October 2026Estimated completion (estimate)
How we estimate: from the same company's first permit at this address (March 2026) and this permit's stated value, with the build lengths Builtie's project feed uses (about 7 months for a job this size). It is not the builder's schedule.
Other big projects nearby
- 77 Kosciuszko Street, BrooklynNew building · $100M to $250M · April 2026
- 93 Lewis Avenue, BrooklynAlteration: facade work · $10M to $25M · April 2026
- 141 Spencer Street, BrooklynAlteration CO: roofing · $5M to $10M · April 2026
- 11 Gerry Street, BrooklynNew building · $5M to $10M · August 2026
- 603 Park Avenue, BrooklynAlteration: structural work · $1M to $5M · October 2026
17 projects of $1M+ were filed within 1 km in the last 12 months. See them all in Builtie →
Seamless Builders Inc. has 3 other projects in Builtie
- New York City · Interior alteration · under $1M · 2026
- New York · Mechanical · 2026
- New York · General Construction · 2026
Which trades are being bought now
When each trade on this project is usually picked, in calendar months (estimate). As of October 2026 every window below has passed (est.): the project may already be finished.
| Trade | When to approach (est.) | Status |
|---|---|---|
| Construction (est.) | Apr 2026 – Oct 2026 | Estimate |
| Construction Site Security | Mar 2026 – May 2026 | Window passed (est.) |
| Painting | Apr 2026 – Jun 2026 | Window passed (est.) |
| Masonry | Apr 2026 – May 2026 | Window passed (est.) |
| Waterproofing | Apr 2026 – May 2026 | Window passed (est.) |
| Roofing | Apr 2026 – May 2026 | Window passed (est.) |
| Windows, Doors and Glazing | Apr 2026 – May 2026 | Window passed (est.) |
| Electrical | May 2026 – Jun 2026 | Window passed (est.) |
| HVAC and Mechanical | May 2026 – Jun 2026 | Window passed (est.) |
| Plumbing | Apr 2026 – Jun 2026 | Window passed (est.) |
| Fire Protection | May 2026 – Jun 2026 | Window passed (est.) |
How we estimate: each bar is the share of the build, from the estimated start (April 2026) to the estimated completion (October 2026) above, when the builder usually picks that trade. It is not the builder's schedule.
Find work like this in New York City
Leads for your trade: every trade in New York City.
More projects: every New York City project of $1M+ by address · major projects in New York City.
Compare tools: The Best Construction Lead Generation Software in New York.
What Builtie adds
In Builtie: the decision makers on this project and their verified contacts, the trades already credited on it, the builder's other active permits, and LinkedIn and email outreach that runs while you work.
Other major projects in New York City
- 501 Madison Avenue, Manhattan: Office and Tenant Fit-Out
- 215 Schaefer Street, Brooklyn: Apartment Building Renovation
- 139-02 97 Avenue, Queens: Two-Family House Renovation
- 163 East 81 Street, Manhattan: Apartment Building Renovation
- 55 Exeter Street, Queens: Single-Family House Renovation
All of them: construction projects in New York City by address. All five boroughs are in the feed, which has run since February 27, 2026. New York issues separate permits for each trade, so the firm named on a permit is often the trade contractor, an engineer or an expediter rather than the developer. Builtie groups the permits into projects and resolves the owner and builder separately.
Plans
Builtie's Starter plan is $79 per seat per month for 20 projects; Growth is $99 for 50 projects and adds the LinkedIn and email outreach you run yourself. Opening a project spends one credit, and the decision makers, emails, phones and AI call script inside it are included. Your monthly credits reset at each renewal, and extra credit packs are valid for 30 days. The free trial runs 7 days with 10 projects. Custom, where Builtie's team runs the outreach for you, starts from $1,500 a month on top of a Growth seat.
Frequently asked questions
What is being built at 648 Marcy Avenue, Brooklyn?
Duplex Renovation. Renovation or addition to a duplex.
When was the permit issued for 648 Marcy Avenue, Brooklyn?
May 20, 2026, by New York City.
Who is building 648 Marcy Avenue, Brooklyn?
Seamless Builders Inc. is named on the permit. The decision makers and their contacts are in Builtie.
Which trades does 648 Marcy Avenue, Brooklyn need now?
Estimated from the permit date, the award windows for site security; painting; masonry; waterproofing; roofing; window, door and glazing; electrical; HVAC; plumbing; fire protection had passed by October 2026; the project may already be finished. Builtie tracks the builder's next projects.
What does Builtie cost?
Starter is $79 per seat per month for 20 projects; Growth is $99 for 50 projects and adds LinkedIn and email outreach. There is a 7-day free trial with 10 projects.