# 449 Mayfair Drive South, Brooklyn

Single family · built 1970 · Block 8607, Lot 9.

On Umarelli: https://umarelli.org/nyc/3086070009/449-mayfair-drive-south

More construction in Mill Basin: https://umarelli.org/nyc/brooklyn/mill-basin.md

## Building permits

- Major Renovation — Residential, filed Feb 14, 2024, estimated cost $1.4M, 1 unit in all, 3 stories, described as “Proposed three story single family new building with existing elements to remain.”
- Alteration, filed Oct 25, 2021, described as “Proposed Excavation and Foundation work in conjunction with job number B01003621-I1. No change in use, egress, bulk, and/or occupancy.”
- Alteration, filed Oct 25, 2021, described as “Proposed structural work in conjunction with job number B00519372-I1. No change in use, egress, bulk, and/or occupancy.”
- Alteration, filed Aug 10, 2021, estimated cost $30K, described as “Filing for new plumbing work in-conjunction with alteration 1 DOB now job #:B00519372.”
- Alteration, filed May 12, 2021, estimated cost $450K, described as “Proposed horizontal & vertical enlargement and interior renovation at basement, first & second floor with attic @ existing residential building with new roof. No change in use group, & occupancy group.”
- Alteration, filed Feb 4, 2020, estimated cost $5K, described as “Installation of a construction fence around the four sides of the property as shown on the site plan. No change in use, egress or occupancy.”
- Alteration, filed Oct 17, 2018, estimated cost $250K, described as “Installation of a construction fence for the proposed two story rear addition, new one story front addition and interior & exterior renovations.”

## Property taxes

- Assessment: $49,775
- 2026–27 tax: $9,877
- Market value (city estimate): $829,578
- Taxable value: $49,775
- Assessed land: $21,300
- Assessed improvements: $28,475

## Zoning

R2: floor area ratio 0.68 built, 0.75 allowed by base zoning.

## Recent sales

- Mar 25, 2021: $920,000
- Jun 20, 2017: $1,093,000

Open-market sales since 2016, from the Department of Finance’s sales files.

## Flood zone

Current FEMA flood map: zone X, minimal flood hazard. FEMA’s preliminary map: zone X, moderate risk: a 0.2% chance of flooding each year.

From New York City and Jersey City public records, refreshed within a day of each release. Sources: https://umarelli.org/sources. Methodology and corrections: https://umarelli.org/methodology