The Brittania - 527 West 110 Street
1. BUILDING OVERVIEW (ANALYST FRAMING)
Type: Prewar Resale Condominium.
Vintage: Built 1910.
Scale: 56 Units across 9 Floors.
Primary Category Classification: Hybrid (Appreciation-Driven with High Friction).
Justification: Post-sponsor data indicates a building that successfully compounded capital value from its mid-2000s baseline (~$600/SF) to a 2022 peak (~$1,350/SF). However, the building suffers from highly erratic liquidity and severe rental leakage on its larger layouts. Current pricing has hit a structural plateau in 2024–2025 (hovering around $1,200–$1,295/SF), perfectly mirroring the macro NYXRCSA benchmark, which stalled out at a 332–333 index value in late 2025 before settling at 330.5 in early 2026.
2. UNIT MIX & COMPOSITION
Based on the 48 historical sales in the aggregated building statistics:
1-Bedroom (1 Bath): 8 sales (~17% of sales activity).
2-Bedroom (1 to 2 Baths): 29 sales (~60% of sales activity).
3-Bedroom (2 to 2.5 Baths): 3 sales (~6% of sales activity).
Analysis: The building is overwhelmingly concentrated in 2-bedroom family layouts (60%+). This heavy monolithic concentration means that 2-bedroom units dictate the building's overall liquidity pacing. The lack of entry-level 1-bedroom inventory restricts overall transaction volume and pushes the asset toward a slower, less transient buyer pool.
3. LINE (STACK) PERFORMANCE — RESALE ONLY
A. Liquidity: The secondary market pacing is highly bifurcated by size. The limited 1-bedroom inventory clears efficiently at a median 34 Days on Market (DOM). In contrast, the dominant 2-bedroom units experience significant friction, with a median of 88 DOM and frequent extreme outliers (e.g., Unit 62 at 252 DOM, Unit 34 at 165 DOM in prior cycles).
B. Price Strength: High-floor standard 2-bedroom units (e.g., Line 24 and Line 34) established the building's peak structural ceilings during the 2019-2022 era, commanding $1,295 to $1,355 PPSF.
C. Appreciation: Core 2-bedroom layouts consistently compounded capital from their ~$600–$800/SF sponsor baselines up to the ~$1,200+/SF mark by the peak cycle.
4. BUILDING-WIDE PPSF TREND (NORMALIZED)
2003–2008 (Sponsor/Early Baseline): Pricing clustered erratically between $580 and $933 PPSF.
2012–2018 (Mid-Cycle Growth): Steady upward mobility established a $1,050–$1,150 PPSF floor.
2019–2022 (Peak Cycle Compounding): Robust growth pushing values to $1,196–$1,355 PPSF.
2024–2025 (Macro Plateau): Pricing has retreated slightly and flatlined into the $1,200–$1,295 PPSF range. This stagnation tracks identically with the macro NYXRCSA index, which plateaued through 2025 and 2026, confirming the aggressive compounding era has strictly paused.
Conclusion: Cyclical / Plateaued Compounding.
5. RENT CAPTURE ANALYSIS
A. Rent Capture by Line & Unit Type:
Unit 35 (2 Bed / 2 Bath - Jun 2024): Achieved Rent: $5,500/month | DOM: 5 days.
Effective (DOM-adjusted) Annual Rent: $5,500 × (365 − 5) ÷ 365 = $5,424/month ($65,095 annually).
Unit 34 (2 Bed / 1 Bath - Dec 2022): Achieved Rent: $4,000/month ($72/SF) | DOM: 33 days.
Effective (DOM-adjusted) Annual Rent: $4,000 × (365 − 33) ÷ 365 = $3,638/month ($43,660 annually).
Unit 65 (2 Bed / 1 Bath - May 2024): Achieved Rent: $4,500/month | DOM: 256 days.
Effective (DOM-adjusted) Annual Rent: $4,500 × (365 − 256) ÷ 365 = $1,343/month ($16,126 annually).
Conclusion: Income capture in this building is highly volatile. While some units rent instantly (5 to 33 days), the building regularly experiences catastrophic vacancy bottlenecks—with recorded rental DOMs of 103, 112, 167, and 256 days on various 2-bedroom lines. This unreliability severely disrupts annualized yield for investors.
6. B³ SCORING SYSTEM (0–100)
Liquidity Score: 55/100 (1-bedrooms move well, but the dominant 2-bedroom lines frequently suffer erratic 88 to 250+ DOMs on the secondary market).
Rent Capture Score: 50/100 (Top-line achieved rents are acceptable, but penalized heavily by chronic 100+ day vacancy leakages destroying effective yield).
Appreciation Score: 75/100 (Proven history of strong capital compounding from the mid-2000s, successfully doubling base values before recently plateauing).
7. COMPOSITE SCORE & CLASSIFICATION
Composite Score: 60.50/100 [(55 × 0.35) + (50 × 0.30) + (75 × 0.35)].
Category Label: Hybrid.
Unit Mix Summary: Overwhelmingly concentrated in 2-Bedroom layouts (~60%), causing internal competition and erratic absorption.
8. TRANSACTION EXAMPLES (REQUIRED)
Resale Appreciation Examples:
Unit 84 (2 Bed/1 Bath, 664 SF): Bought Mar 2012 at $575,000 ($865 PPSF) → Resold Oct 2025 at $799,000 ($1,203 PPSF). (+38.9% over 13.5 years; CAGR ~2.4%). Driver 1 (Market regime timing).
Unit 24 (2 Bed/1 Bath, 664 SF): Bought Oct 2016 at $715,000 ($1,076 PPSF) → Resold Aug 2022 at $900,000 ($1,355 PPSF). (+25.8% over 5.8 years; CAGR ~4.0%). Driver 1 (Market regime timing).
Unit 5 (2 Bed/1 Bath, 778 SF): Bought Oct 2015 at $815,000 ($1,047 PPSF) → Resold Mar 2019 at $975,000 ($1,253 PPSF). (+19.6% over 3.4 years; CAGR ~5.3%). Driver 1 (Market regime timing).
Unit 52 (2 Bed/1.5 Bath, 1300 SF): Bought Apr 2004 at $795,000 ($611 PPSF) → Resold May 2010 at $1,200,000 ($923 PPSF). (+50.9% over 6 years; CAGR ~7.0%). Drivers 1 (Market regime timing) & 5 (Sponsor price normalization).
Resale Depreciation / Flatline Examples:
Unit 34 (2 Bed/1 Bath, 664 SF): Bought Aug 2016 at $837,000 ($1,260 PPSF) → Resold Jul 2024 at $860,000 ($1,295 PPSF). (+2.7% over 7.9 years; functionally flat). Driver 1 (Market regime timing - purchased mid-cycle, exited in macro plateau).
Unit 25 Proxy (2 Bed/2 Bath, 873 SF): Unit 25 bought Apr 2007 at $680,000 ($778 PPSF) → Resold May 2010 at $780,000 ($893 PPSF). (+14.7% over 3 years; weak relative growth hampered by 117 DOM liquidity drag). Drivers 1 (Market regime timing) & 3 (Liquidity shift).
9. RISKS & RED FLAGS
Catastrophic Rental Leakage: The 2-bedroom rental market within this building is highly unpredictable. Multiple units have sat empty for 3 to 8 months (e.g., Unit 65 at 256 DOM, Unit 84 at 167 DOM). Landlords face massive vacancy risk.
Macro Headwinds: Building-wide PPSF growth has officially hit a ceiling. Buyers purchasing today around ~$1,250/SF are entering at a market plateau corroborated directly by the stagnant NYXRCSA benchmark in 2025/2026.
Recommendation: Do not buy for short-term rental yield. The excessive vacancy risk on the dominant 2-bedroom units frequently destroys capitalization rates, making it an unreliable pure-yield play.
10. EXECUTIVE SUMMARY
The Brittania (527 West 110 Street) is a 56-unit prewar condominium operating as a Hybrid asset that successfully doubled its capital value over the past two decades before stalling into the current macroeconomic plateau mapped by the NYXRCSA index. The building is heavily saturated with 2-bedroom family layouts (60% of inventory), which creates fierce internal competition and highly erratic secondary market absorption. While appreciation has historically been strong, the asset’s primary risk profile is driven by catastrophic rental leakage—with standard 2-bedroom lines frequently sitting vacant for 100 to 250+ days, effectively destroying annualized yields. Opportunity here lies strictly in long-term capital holding for primary users, while acute risk awaits any investor relying on stable, fast-turnaround rental income.
