Portland-South Portland, ME
Executive Summary
Portland's housing market shows elevated risk, ranking 19th of 287 metros. The market recently entered Hypersupply. Inventory levels are elevated, warranting monitoring. Inventory accumulating faster than demand — the market is shifting toward buyers. Valuations are also showing some stretch.
Portland experienced a market correction from early 2025 through mid-2025. Elevated inventory persists, suggesting the market hasn't fully normalized.
Inventory is elevated (+23% YoY) and days on market are up +9% — supply is building but not yet at stress levels.
Home prices are outpacing rents (-3.2% rent-price ratio change), indicating some valuation compression.
Cycle Phase
Building activity may be outpacing demand absorption
Key Dynamics
Risk is primarily driven by employment and affordability, while migration provides the most support.
Top Drivers
Market Signals
Inventory is elevated (+23% YoY) and days on market are up +9% — supply is building but not yet at stress levels.
Liquidity
Valuation
Factor Details
12-month HPI change — higher = overheating
YoY permit change — higher = supply pressure
Permits per 1,000 residents — higher = overbuilding risk
Mortgage payment / income — higher = more burdened
12-month employment change (risk inverted)
Net AGI migration (risk inverted)
National Context
Credit Conditions
Credit Regime
Oversupply with deteriorating transactions and no credit excuse. Supply-driven correction risk is elevated.
Supply Pipeline
Supply Regime
Supply pipeline is building up while credit remains available. New units are accumulating in the system — watch for delivery pressure in coming quarters.
Local Signals
Metro Permit Activity
Permit Activity
NormalRaw signal — not the composite percentile
Relative to 2016–2019 norms for this metro
Permit activity is typical but demand is softening. Price pressure is forming on the demand side — this is not a supply problem.
Employment Concentration
Employment
ConcentratedInternal Structure
Portland's counties diverge significantly — Sagadahoc County (Elevated) contrasts sharply with Cumberland County, making the metro average potentially misleading.
Portland, ME shows High internal divergence — the metro composite may obscure significant county-level differences. Sagadahoc County contributes the most structural risk (Elevated, driven by price momentum), while Cumberland County anchors the lower end (Low Risk).
| County | Score ▼ |
|---|---|
Sagadahoc CountyRisk Driver | 62 |
York County | 62 |
Cumberland CountyStabilizer | 25 |
Score History
| Month | Score |
|---|---|
| 2025-11 | 60 |
| 2025-09 | 62 |
| 2025-08 | 59 |
| 2025-06 | 59 |
| 2025-04 | 56 |
| 2025-01 | 56 |
| 2024-12 | 51 |
| 2024-10 | 47 |
| 2024-08 | 50 |
| 2024-07 | 47 |
| 2024-05 | 51 |
| 2024-03 | 52 |
| 2024-02 | 52 |
| 2023-12 | 53 |
| 2023-11 | 53 |
| 2023-09 | 54 |
| 2023-07 | 54 |
| 2023-05 | 52 |
| 2023-03 | 53 |
| 2023-02 | 52 |
| 2022-12 | 52 |
| 2022-11 | 53 |
| 2022-10 | 55 |
| 2022-08 | 56 |
| 2022-05 | 58 |
| 2022-02 | 54 |
| 2021-12 | 52 |
| 2021-10 | 50 |
| 2021-09 | 50 |
| 2021-07 | 44 |
| 2021-04 | 46 |
| 2021-03 | 52 |
| 2021-01 | 53 |
| 2020-12 | 55 |
| 2020-10 | 55 |
| 2020-09 | 53 |
| 2020-07 | 58 |
| 2020-04 | 53 |
| 2020-02 | 46 |
| 2020-01 | 45 |
| 2019-11 | 47 |
| 2019-08 | 45 |
| 2019-05 | 49 |
| 2019-03 | 47 |
| 2019-01 | 47 |