1100 Park Avenue
1100 Park Avenue, New York, NY 10128
Carnegie Hill, Upper East Side
BBL 1015010033 · BIN 1046974
- Year built
- 1930
- Type
- Cooperative
- Units
- 80
- Floors
- 18
- Landmark
- Designated
- Flip tax
- 2% of the sale price, paid by the purchaser.
- Financing
- Up to 50% financeable (50% minimum down).
- Subletting
- Restricted — permitted only with Board approval under the building's procedures, and uncommon (a Park Avenue owner-occupancy co-op).
- Pied-à-terre
- Not permitted.
- Washer / dryer
- In-unit washer/dryer permitted.
- Pets
- Permitted.
- Co-purchasing
- Co-purchasing permitted; guarantors and gifting not permitted.
- Alterations
- Board approval required (arranged through the managing agent).
- Managing agent
- Wallack Management Company, Inc.
Compiled by The Roebling Research Desk from the building’s offering plan, amendments, and related building documents (primary source dated 2026). Board policies can change by amendment — confirm at the offer stage.
Every recorded sale at this building, 2004–2025
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- 3BR median
- $4.8M
- Recent range
- $1.2M – $8.8M
- Listing discount
- 2.5%
- Recorded transfers
- 59
1100 Park Avenue is the architecturally most eclectic pre-war cooperative on Park Avenue — and one of the only Manhattan apartment houses designed by the small Italian-American firm of DePace & Juster (Andrew DePace and Frank A. Juster). Completed in 1930 for developer Samuel Silver, the 18-story building is structurally distinct from the broader Italian Renaissance, Georgian, and neo-Venetian Gothic registers that dominated the corridor's 1920s residential building cycle.
The architectural composition at 1100 Park draws from Venetian and Romanesque ornament across a deliberately layered material palette. A three-story base of warm pink granite and sandstone supports the dark brown masonry of the upper stories. Architectural detailing includes terra-cotta ornamental balconies, Gothic-arched cornice details, and gargoyles flanking the entrance — a vocabulary that places 1100 Park outside the Italian Renaissance / Georgian house style that defined most of the 1920s Park Avenue residential mainline. The building stands out among its Schwartz & Gross / Carpenter / Candela / Blum brothers neighbors precisely because it does not follow the standard corridor architectural vocabulary.
DePace & Juster were a small Italian-American firm whose surviving Park Avenue commission is 1100 Park — an architectural-pedigree feature meaningful precisely for its structural specificity within the broader 1920s Park Avenue residential tradition. The 80-apartment scale (originally configured at 6 to 13 rooms per unit) produces a mid-size cooperative configuration with substantial apartment-level variation.
The 1955 cooperative conversion places 1100 Park among the post-war Park Avenue cooperative conversions. Many apartments retain wood-burning fireplaces; select upper-floor apartments carry private terraces.
Documented historical residency includes Prince and Princess Francis Windisch-Graetz (he a great-grandson of Emperor Francis Joseph of Austria-Hungary), who occupied a unit in 1942, and Marne Obernauer Jr. (reported in trade press as an owner of the Colorado Rockies).
Architecture and unit composition
The 80 cooperative apartments distribute across the building's 18 stories plus penthouse in configurations ranging from 6 rooms through 13 rooms per unit — a substantial apartment-level scale variation characteristic of pre-Depression Park Avenue luxury construction. Many apartments retain wood-burning fireplaces; select upper-floor units carry private terraces.
Recent transactions documented through public records include Unit 15B at $7,250,000 (September 2025; 3-bedroom, 3-bathroom configuration), Unit 3A at $8,800,018 (June 2025; 3-bedroom, 3-bathroom configuration), Unit 7A at $3,300,000 (April 2024; 2-bedroom, 2-bathroom configuration at approximately 2,200 square feet), and Unit 7AA at $1,200,000 (April 2024; 2-bedroom, 2-bathroom configuration on the smaller line).
Building operations
1100 Park operates as a full-service cooperative with 24-hour doorman and live-in superintendent. The building's recently renovated lobby anchors the contemporary architectural presentation; the amenity infrastructure includes a fitness center, bike storage, and private storage.
The cooperative policy framework — 50 percent maximum financing, 2 percent buyer-paid flip tax, pet-friendly — supports a structurally specific buyer pool. Pied-à-terre allowance and sublet specifics should be verified directly with management.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $36,166/yr
- Per unit / month range
- $0 – $40
Facade safety — Local Law 11
The latest available filing classified the facade as SWARMP — Safe With A Repair and Maintenance Program: the engineer identified conditions requiring monitoring or repair before the next inspection cycle. The scope, timeline, and how the building funds the work are building-specific — we review the filings and board materials for you.
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 →Management & transfer contacts
- Flip tax
- 2% of gross sales price
- Sublet policy
- Not allowed
- Pied-à-terre
- Not allowed
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.
| Date | Unit | Apartment | Price | PPSF | vs. Ask |
|---|---|---|---|---|---|
| Sep 30, 2025 | 15B | 3 BR · 3.5 BA | $7,250,000 | +0.0% | |
| Jun 17, 2025 | 3A | 4 BR · 5.5 BA | $8,800,018 | +8.0% | |
| Apr 2, 2024 | 7A | 2 BR · 2 BA · 2,200 sf | $3,300,000 | $1,500/sf | +3.1% |
| Apr 2, 2024 | 7AA | 2 BR · 2 BA | $1,200,000 | -4.0% | |
| Oct 26, 2023 | 9C | 4 BR · 4 BA · 2,600 sf | $4,850,000 | $1,865/sf | -0.9% |
| May 24, 2023 | 2A | 5 BR · 5.5 BA · 4,800 sf | $6,700,000 | $1,396/sf | -25.5% |
| Feb 14, 2023 | 3B | 3 BR · 3 BA · 3,000 sf | $3,600,000 | $1,200/sf | -31.4% |
| Jan 12, 2023 | 6C | 3 BR · 3 BA · 2,650 sf | $4,800,000 | $1,811/sf | -5.9% |
Market read. $/sf is measured on the latest sales with reliable square footage (2024): a median $1,489/sf across 1 sale. The building has traded as recently as 2025. Median listing discount 3.5% 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.
Other recent transfers
| Date | Unit | Price |
|---|---|---|
| Nov 1, 2004 | PH18D | $2,900,000 |
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 1-01501-0033) 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 architectural composition is structurally distinguishing. The Venetian-Romanesque eclectic register is outside the Italian Renaissance / Georgian mainline; the building stands out architecturally within the broader Park Avenue corridor.
The DePace & Juster architectural pedigree is structurally specific. Among the few Manhattan apartment houses designed by the firm; 1100 Park is the firm's surviving Park Avenue commission.
Wood-burning fireplaces are real apartment-level features. Many apartments retain operational fireplaces — uncommon among contemporary Park Avenue cooperative inventory.
Private terraces on select upper-floor units are structural. Apartment-level outdoor space uncommon on Park Avenue cooperative inventory.
The recently renovated lobby is real. Contemporary capital project work at the building.
The Park Avenue Historic District protection applies. Designated LP-2547 by the NYC LPC on April 29, 2014.
Apartment configurations span 6 to 13 rooms. Substantial scale variation; recent comparable analysis depends on the specific configuration.
Verify operational specifics during due diligence. Specific board approval framework, sublet duration limits, current capital project pipeline, and the LL11 façade cycle on the 1930 vintage should be reviewed.
Closing timelines are cooperative-standard. Plan for 6–10 weeks from contract through board approval to closing.
What to know if you’re selling
Marketing should emphasize the architectural distinctiveness. The Venetian-Romanesque register, the gargoyles at the entrance, the pink-granite-and-sandstone base, and the wood-burning fireplaces are real architectural features that distinguish the building from peer Park Avenue cooperatives.
The DePace & Juster architectural credential is a real marketing point. Specific to the building within the broader Park Avenue corridor.
Pricing should reference recent comparable closings. The $8,800,018 June 2025 closing on Unit 3A provides recent upper-tier reference; the building's substantial apartment-line variation produces meaningful pricing differentiation.
Closing timelines are cooperative-standard.
Comparable buildings
If you're considering 1100 Park Avenue, also evaluate:
- 1095 Park Avenue — Schwartz & Gross 1930; immediate same-vintage Park Avenue peer
- 1070 Park Avenue — Schwartz & Gross 1928; nearby Park Avenue peer (neo-Venetian Gothic — comparable architectural exuberance)
- 1130 Park Avenue — Carnegie Hill peer
- 1133 Park Avenue — pre-war Park Avenue peer
- 1075 Park Avenue — Blum brothers 1929; immediate same-block peer
The neighborhood
For the full corridor — architecture, schools, transit, and pricing across Park Avenue — read The Roebling Team Guide to Park Avenue.
The full playbook — what goes in the package, how boards read your financials, the interview, and the timeline — plus sample cover, reference, and personal letters you can adapt.
Considering a move at 1100 Park Avenue?
Request a private building brief with the relevant comparable sales, current and off-market availability, and an apartment-specific view of value.
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 1100 Park Avenue would likely sell for today, what it costs to sell, and what you’d walk away with — reviewed personally against condition, exposures, renovation quality, and the competition actually on the market.