Median weekly rent, six-year trend and rental yield for Castor Bay — built from 27 tenancy bonds lodged with Tenancy Services.
Every one of the 246 suburbs we track is a tick on this scale, placed by its median weekly rent. Castor Bay is the 8th most expensive of the 246 Auckland suburbs we track — pricier than 97% of them.
The median weekly rent in Castor Bay is $920, based on 27 new tenancy bonds lodged in Q1 2026. That is 48% above the Auckland-wide median of $622.
Over the past year the median has fallen 0.5%, and it is up 13% on Q1 2020, when the median was $698.
Most new tenancies fall between $736 and $1,100 a week — the middle half of the market.
Castor Bay is the 8th most expensive of the 246 Auckland suburbs we track — pricier than 97% of them.
Median weekly rent on new tenancies, Q1 2020 to Q1 2026. Hover the chart to read any quarter.
| Quarter | Median weekly rent | New bonds |
|---|---|---|
| Q1 2020 | $698 | 30 |
| Q2 2020 | $750 | 27 |
| Q3 2020 | $765 | 33 |
| Q4 2020 | $698 | 39 |
| Q1 2021 | $818 | 36 |
| Q2 2021 | $830 | 27 |
| Q3 2021 | $800 | 27 |
| Q4 2021 | $755 | 30 |
| Q1 2022 | $905 | 27 |
| Q2 2022 | $700 | 36 |
| Q3 2022 | $698 | 24 |
| Q4 2022 | $865 | 33 |
| Q1 2023 | $850 | 42 |
| Q2 2023 | $850 | 33 |
| Q3 2023 | $880 | 33 |
| Q4 2023 | $840 | 33 |
| Q1 2024 | $848 | 21 |
| Q2 2024 | $900 | 27 |
| Q3 2024 | $740 | 33 |
| Q4 2024 | $780 | 42 |
| Q1 2025 | $925 | 30 |
| Q2 2025 | $940 | 27 |
| Q3 2025 | $680 | 33 |
| Q4 2025 | $920 | 27 |
| Q1 2026 | $920 | 27 |
Q1 2026. Sizes with fewer than five bonds are withheld by Tenancy Services to protect tenants' privacy.
Pre-filled with the Castor Bay median rent. Enter a purchase price to see the gross yield.
Gross yield ignores rates, insurance, maintenance, management and vacancy. Net yield is typically 1–2 percentage points lower — the full calculator works both out.
The closest suburbs to Castor Bay, by distance between area centres.
| Suburb | Median weekly | Difference | Distance |
|---|---|---|---|
| Campbells Bay | $955 | +$35 | 1.3 km |
| Forrest Hill | $754 | -$166 | 1.3 km |
| Milford | $798 | -$122 | 1.3 km |
| Westlake | $745 | -$175 | 1.9 km |
| Sunnynook | $709 | -$211 | 2.2 km |
| Mairangi Bay | $797 | -$123 | 2.5 km |
Rent tells you what a Castor Bay property earns today. Zoning tells you what it could become — a second dwelling on the same section changes the income on this page entirely.
Our companion tool PropertyScope reads Auckland Council's planning data for any Castor Bay address — the zone, how many dwellings are allowed, whether a 70m² granny flat qualifies, and any hazard overlays on the land. At the Castor Bay median of $920 a week, a second dwelling would add roughly $47,840 a year in gross rent.
Check Castor Bay zoning and development rules →Amit Sharma is an award-winning Auckland agent. Get a free, no-obligation appraisal of what your Castor Bay property would rent or sell for today — based on real local numbers, not a guess.
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