Building facts, reconciled
Public records and listing sites do not agree on the basics, so treat any single-source figure with caution.
| Metric | Reported figure(s) | Source | Conflict note |
|---|---|---|---|
| Unit count | 498 (current) to 502, 503, 506 depending on source and date | StreetEasy, Compass, PropertyShark | The drift from 506 to 498 tracks a 2019 to 2023 renovation that combined eight apartments into amenity space |
| Floor count | 33 or 35 | CityRealty, PropertyClub, Compass, Bromley Caldari Architects | Likely a mechanical-floor counting difference, not a real dispute about height |
| Year built | 1998, 1999, or 2000 | Bromley Caldari; StreetEasy, PropertyShark, Compass; CityRealty, PropertyClub | Construction most likely finished in 1998 to 1999, with occupancy and marketing dated 2000 |
| Building class | D9, Elevator Apartments, Miscellaneous | StreetEasy | No conflicting classification found |
| Total building area | 631,204 sq. ft. (532,592 sq. ft. residential, 98,612 sq. ft. commercial) | PropertyShark, Compass | Consistent across both sources |
| Owner / manager | Dermot Company, PGGM, and Affinius Capital (owners); Dermot Realty Management (manager) | The Real Deal | StreetEasy’s own owner field lists “NYS DOT”; see the Ownership section below |
The floor and unit counts diverge in the direction a known renovation would produce, not at random: eight apartments went into new amenity space around 2019, and the resulting counts track that change closely enough to explain most of the gap.
Is 101 West End Avenue a rental or a condo? It is a rental building. There is no condominium offering plan on file for the address, and every unit currently listed across StreetEasy, CityRealty, and Apartments.com is a lease, not a sale.
Ownership and financing history
Tishman Speyer built the tower and later sold it to Archstone, which sold it to Equity Residential. Equity Residential sold the property to a joint venture of the Dermot Company, Dutch pension fund PGGM, and USAA for $416 million in 2018, financed with a $260 million loan from German lender Landesbank Hessen-Thüringen. In August 2023, Dermot and its partners, now including Affinius Capital (a rebrand of USAA Real Estate), refinanced with $263 million from Global Atlantic Financial Group, replacing that earlier debt.
That 2023 refinancing is almost certainly the transaction some aggregators record as a “last sold” date of August 1, 2023: it shows up in city title records as a filing tied to the loan, not a change of owner. StreetEasy’s own building page names the property owner as “NYS DOT,” New York State’s Department of Transportation, a field this research found no deed, filing, or trade-press account to support.
Why do unit-count and floor-count figures vary across listing sites? Most listing sites pull from data feeds that were never refreshed after the 2019 to 2023 renovation combined eight apartments into common space, so older feeds still show the pre-renovation count.
Land and zoning status
No ground lease, air-rights transfer, or reversionary land interest was found in the sources reviewed for this page: the property sits on a standard fee-simple lot, and both the 2018 sale and the 2023 refinancing were structured as ordinary acquisition and mortgage transactions. Anyone underwriting the building for a long hold should still confirm this through an ACRIS deed pull, since this page relies on trade-press reporting of the transactions rather than the recorded deed itself.
Current pricing
| Unit type | Price range (base rent) | As of | Note |
|---|---|---|---|
| Studio | $4,250 to $4,850 | Nov 15, 2025 (StreetEasy) | Excludes broker and application fees |
| One-bedroom | $5,895 to $6,950 | Nov 15, 2025 (StreetEasy) | The upper figure was a furnished short-term unit; unfurnished one-bedrooms ran closer to $5,895 |
| Two-bedroom | $8,550 | Nov 15, 2025 (StreetEasy) | Only one two-bedroom was listed at the time |
| Three-bedroom | $9,000 to $13,850 | Historical range, no units listed as of Nov 15, 2025 | Reflects prior listings, not current inventory |
By May 2026, Apartments.com listed a starting rent of $4,212 for the smallest available layout, close to the November 2025 studio floor and suggesting prices had not moved sharply in the interim.
What does a studio or one-bedroom cost as of late 2025? Studios ran $4,250 to $4,850 and unfurnished one-bedrooms started around $5,895, both excluding broker and application fees, per StreetEasy’s November 15, 2025 update.
Amenities and the 2019 to 2023 renovation
Marketing copy from Highline Residential and PropertyClub describes a 15,000 sq. ft. communal terrace and over 20,000 sq. ft. of new amenity space in total. Bromley Caldari Architects, the firm that designed the renovation, describes the same project on its own site as freeing up 7,000 sq. ft. of outdoor amenity space by removing eight apartments and part of the 16th-floor slab.
The renovation also added a basketball court, a children’s playroom, and conference rooms, and it enclosed part of the former roof setback in a 16-foot glass curtainwall to create an indoor-outdoor lounge floor.
How was the new amenity floor actually built? Bromley Caldari removed eight apartments and part of the 16th-floor slab, then rerouted the building’s mechanical exhaust ducts below the roofline so the freed space could become a glass-enclosed lounge and outdoor terrace.
Resident experience
| Metric | Count | Scope |
|---|---|---|
| HPD complaints | 208 | Cumulative, city Housing Maintenance Code filings |
| HPD violations | 204 | Cumulative, city Housing Maintenance Code |
| ECB violations | 30 | Cumulative, Environmental Control Board |
| 311 calls (housing issues) | 12 | Cumulative |
| Evictions | 5 | Executed, NYC Civil Court |
These figures, aggregated from DOB and HPD records by Augrented, cover the building’s full history rather than a current snapshot, but they run higher than anything the marketing-facing listing sites disclose, and they’re absent from CityRealty, StreetEasy, Apartments.com, and Dermot’s own site entirely.
- Under Equity Residential, before 2018: reviewers describe modest rent increases and adequate maintenance, though under-invested toward the end of that ownership period.
- After the Dermot takeover: one detailed account reports a roughly 40% rent increase tied to unit renovation timing, alongside construction-related elevator strain during the amenity buildout.
- Staff continuity: reviewers across both ownership periods single out the doorman and concierge staff as a consistent positive, independent of who owns the building.
What has resident feedback said about management and building conditions? The clearest pattern is a split by ownership era: relatively steady conditions under Equity Residential, followed by a rent-increase and construction-noise stretch after Dermot’s 2018 takeover, with front-desk staff rated consistently well across both.
Neighborhood context
The building sits at West End Avenue and West 64th Street in Lincoln Square, within roughly three quarters of a mile of the 1, 2, 3, A, B, C, and D subway lines.
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