Cooperative · 1912
830 Park Avenue
830 Park Avenue, New York, NY 10075
Buildings·Park Avenue·Cooperative

830 Park Avenue

830 Park Avenue, New York, NY 10075

At a glance
Year built
1912
Type
Cooperative
Units
40
Floors
12
Landmark
Designated
Subletting
Restrictive (typical of tier-one Lenox Hill pre-war cooperatives)
The Data Room

Every recorded sale at this building, 2003–2025

Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.

Listing discount
5.8%
Recorded transfers
45

830 Park Avenue is among the earliest of the George and Edward Blum brothers' Park Avenue commissions — a 1909 building that pre-dates the absolute peak of the Park Avenue luxury apartment-building tradition by approximately two decades and that represents one of the few authentic pre-WWI Park Avenue luxury cooperatives still operating in original cooperative ownership. The Blum brothers' Park Avenue portfolio — 555, 591, 830, 840, 875, 940, 1075 Park — represents one of the more cohesive single-firm bodies of work in pre-war Park Avenue inventory, and 830 Park is among the earliest mature expressions of the firm's apartment-building vocabulary.

The 1909 vintage produces a particular set of architectural characteristics. The building pre-dates the Candela / Cross & Cross / Carpenter peak (1925–1931) by approximately two decades, with apartment configurations, mechanical systems, and overall building economics reflecting an earlier era of Manhattan luxury apartment design. The ceiling heights, the apartment-layout discipline, and the decorative ornamental vocabulary all reflect a moment in Manhattan apartment history that was still finding its mature form — and that the Blum brothers were among the first firms to develop at the scale and quality that would later define the Park Avenue corridor.

The Blum brothers' decorative facade vocabulary is among the building's most distinctive features. Where the contemporaneous Carrère & Hastings, McKim Mead & White, and other classical-revival firms produced facades that read in dialogue with the broader European classical and Beaux-Arts traditions, the Blum brothers' work integrated decorative detailing — hieroglyphic medallions, Egyptian Revival ornamental elements, Persian and Near Eastern decorative motifs — that distinguished their portfolio from contemporary classical-revival peers. The result is a facade vocabulary that reads as among the more ornamental and decoratively interesting in pre-WWI Park Avenue inventory.

The original cooperative ownership from 1909 produces an institutional culture that has stabilized across more than a century of cooperative occupancy. The 40-apartment scale places 830 Park among the smaller pre-WWI Park Avenue cooperatives — moderate institutional density and limited annual turnover.

The corner positioning at Park Avenue and East 76th Street places 830 Park at the heart of the Lenox Hill / Carnegie Hill transition. Surrounded by tier-one Park Avenue cooperative inventory — 875 Park (Blum brothers 1912) immediately north, 740 Park (Candela / Cross & Cross 1930) several blocks south, 778 Park (Candela 1931) further north, and the dense pre-war cooperative inventory of East 71st through East 78th between Park and Fifth — the building occupies a central position in the modern Park Avenue trophy corridor.

For buyers, 830 Park represents a particular tier of Lenox Hill Park Avenue inventory: pre-WWI architectural pedigree from a distinguished firm with a coherent body of work, 40-apartment scale producing moderate annual turnover, corner Park Avenue / 76th Street positioning, and pricing materially below the Candela apex at 740 Park or 778 Park.

Architecture and unit composition

The 40 apartments span configurations from approximately 2,000 sf 2BRs to substantially larger 4–5 BR configurations across the 12 stories. The building's most architecturally distinctive apartments are the full-floor configurations and the upper-floor residences with longer view envelopes.

Blum brothers' pre-WWI signatures throughout: 10–11 foot ceilings in primary rooms (lower than the 1920s Candela 11–12 foot ceilings but generous by 1909 standards), formal entry galleries, library-living combinations, primary suites with substantial closet infrastructure, service wings characteristic of 1909-era luxury apartment design.

Park Avenue-facing apartments on the western flank look across to the Park Avenue median plantings and the buildings on the avenue's west side. 76th Street-facing apartments to the south have cross-street exposures with stable residential side-street views.

Building operations

830 Park Avenue operates as a full-service pre-war cooperative with full-time doorman, attended elevator, on-site superintendent, and private storage. The 40-apartment scale produces a moderate institutional density characteristic of pre-WWI Park Avenue cooperative inventory.

Specific policy details (financing posture, flip tax structure, sublet policy specifics, pied-à-terre allowance) should be confirmed directly with property management during due diligence. The board posture follows tier-one Lenox Hill pre-war norms — rigorous financial review, strong personal references, primary-residence intent the working assumption.

Local Law 97

Carbon-penalty exposure
🟢
Strong — under cap in both periods
2024–2029 annual penalty
$0 (under cap)
2030–2034 annual penalty
$0 (under cap)
Per unit / month range
See full Local Law 97 analysis — emissions history, scenarios, methodology →

Facade safety — Local Law 11

Local Law 11 / FISP · last inspection 2020–25
SWARMP
What this means for you

Safe to live in today — but the last inspection flagged repairs that are due on a deadline, so facade work and its cost are coming. Whether that’s a real concern depends on the scope, the timing, and how the building plans to pay for it — reserves or an assessment — which is exactly what we’d dig into for you.

Inspection history
2005–10
SWARMP
2010–15
SWARMP
2015–20
Safe
2020–25
SWARMP
2025–30
Due
Next report due
by Feb 2029
The three grades, in buyer terms
SafeGood for ~5 years — no facade assessment on the horizon.
SWARMPSafe now, repairs due on a deadline — budget for the work or a possible assessment.
UnsafeActive hazard: sidewalk shed and repairs now. Expect disruption and an assessment.

QEWI = Qualified Exterior Wall Inspector — the licensed engineer the city requires to sign the report (the independent expert, not the managing agent). Source: NYC DOB facade filings (FISP) · The Roebling Research Library.

See the full facade history →

Recent sales

Recent transfers at this building, curated by The Roebling Team research desk. Apartment-level facts are independently verified before publishing; sale prices reflect the recorded transfer amount at the NYC Department of Finance.

DateUnitApartmentPricePPSFvs. Ask
May 29, 20259/10B
4 BR · 3.5 BA
$8,000,000-3.0%
Oct 25, 2024A
4 BR · 3 BA
$4,500,000-23.7%
Apr 3, 20246/7A
4 BR · 3.5 BA · 3,700 sf
$4,575,500$1,237/sf-2.1%
Jun 9, 20232/3B
5 BR · 3 BA · 3,750 sf
$5,100,000$1,360/sf-6.4%
Jun 23, 20221112B
3 BR · 3 BA · 3,475 sf
$5,846,250$1,682/sf-22.1%
Mar 31, 20222/3A
4 BR · 4.5 BA
$6,500,000-18.8%
Feb 8, 20224/5C
3 BR · 2.5 BA
$4,400,000-8.2%
Jan 14, 20229C
2 BR · 2 BA
$2,300,000-4.0%

Market read. Most recent trades (2024) cleared a median $1,237/sf across 1 sale. Median listing discount 5.9% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.

The retrade record

Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.

1-B+110%
$500,000 2004$1,050,000 2017
A+59%
$2,830,000 2015$4,500,000 2024
9C+31%
$1,750,000 2006$2,400,000 2008$2,300,000 2022
7/8A+17%
$7,331,400 2014$8,550,000 2021
1 2B+10%
$6,800,000 2006$7,475,000 2007

Other recent transfers

DateUnitPrice
Nov 24, 20251/2A$6,250,000
Nov 1, 20181011B$844,915
Nov 15, 20171-B$1,050,000
May 20, 2015A$2,830,000
May 27, 20149/10B$8,495,000
Apr 30, 201310 11$8,300,000
View all 45 recorded transfers, sortable

Full closing history with price-per-square-foot over time, the complete retrade record, and every line that has traded.

Sales sourced from NYC Department of Finance recorded transfers (BBL 1-01390-0037) and verified listing data. Apartment-level facts (line, condition, asking-price context) curated and cross-verified by The Roebling Team research desk. Not all transactions cross-verify with ACRIS records — sponsor and LLC purchases sometimes record at stipulated values rather than market price; square footage on co-ops is not officially recorded, figures shown are approximate.

What to know if you’re buying

The pre-WWI vintage is structural. The 1909 vintage produces lower ceilings than the 1920s Candela peak, somewhat smaller floor plates on average, and the mechanical systems and apartment configurations of an earlier era. Buyers should evaluate the specific apartment carefully.

The Blum brothers architectural pedigree is real. Buyers attentive to architectural detail find the firm's distinctive decorative facade vocabulary differentiating among pre-war Park Avenue inventory.

Pricing is more accessible than Candela tier-one peers. 830 Park typically trades at materially more accessible per-square-foot pricing than the 1929–1931 Candela Park Avenue tier-one peak.

Confirm specific policies directly with management. Financing posture, flip tax structure, sublet specifics, and pied-à-terre allowance should be obtained directly during the contract review process.

Board approval follows tier-one Park Avenue norms. Strong financial profile, professional accomplishment, primary-residence intent are central criteria.

Renovation is constrained by historic district status and pre-WWI character. The board reviews scope and quality with attention to preservation of original detail.

What to know if you’re selling

The architectural pedigree and the building's age are marketing assets. Listing copy should reference the Blum brothers' authorship, the building's place within the firm's Park Avenue portfolio (555, 591, 840, 875, 940, 1075 Park), and the 1909 vintage as among the earliest pre-WWI Park Avenue luxury cooperatives.

Pricing requires apartment-level comparable analysis. The 40-unit scale produces meaningful variation; floor altitude, exposure, configuration, and renovation history all matter.

Closing timelines are co-op standard. 6–10 weeks from contract signing to closing.

Comparable buildings

If you're considering 830 Park Avenue, also evaluate:

The Roebling Team at 830 Park Avenue

The Roebling Team at Compass specializes in Central Park West, the Upper East Side, and the broader Park-facing Manhattan market. We publish this building profile because Park Avenue Lenox Hill buyers and sellers deserve building-specific intelligence — architecture, board culture, transactional mechanics, and pricing at the apartment level — not generic market commentary.

If you're considering a purchase or sale at 830 Park, a 30-minute consultation is the right starting point.

Considering a move at 830 Park Avenue?

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Corey Cohen, Principal · The Roebling Team at Compass
646.939.7375 · c.cohen@compass.com