# Redcliffs vs Sumner, the record side by side

| | [Redcliffs](https://www.chch.live/redcliffs) | [Sumner](https://www.chch.live/sumner) |
|---|---|---|
| Population | 2,150 (2023) | **3,490 (2023)** |
| 2023 Census (SA1 join) | 2,061 (indicative) | **3,414 (indicative)** |
| Census households | 891 | **1,344** |
| Under 15 (Census) | 13% | — |
| 65+ (Census) | 27% | — |
| Area | 1.9 km² | **11.99 km²** |
| People per km² | **1,132** | 291 |
| Reports filed | 2,456 | **4,633** |
| Rank on the roll | 57th of 108 | **32nd of 108** |
| Reports per km² | **1,293** | 386 |
| First report on record | 2015 | 2015 |
| Busiest day | 2022-11-17 (20 reports) | **2023-06-20 (49 reports)** |
| Crashes on record | 48 (1 fatal · 13 serious) | **75 (4 fatal · 22 serious)** |
| Epicentres inside the outline | 18 (biggest M6.0) | **101 (biggest M5.3)** |
| Of the outline, red-zoned | **5.7% (11 ha)** | 2.5% (30 ha) |
| The 2011 grade | TC2 (17.3% of the outline) | TC2 (6.3% of the outline) |
| Flooded on record | **46.9% (2 events)** | 2.5% (2 events) |
| The sea’s reach | **24% of the outline** | 10% of the outline |
| Slope-hazard bands | **14% of the outline (+55% broad overlay)** | 10% of the outline (+80% broad overlay) |
| The remembered ground | **100% of the outline** | 55% of the outline |
| The wild ledger | 2% of the outline | — |
| The kept view | 23% of the outline (+20% outstanding) | **83% of the outline (+82% outstanding)** |
| The waiting water | **3% high-hazard (18% managed)** | 0% high-hazard (6% managed) |
| The quiet lines | — | — |
| The drawn water | **22 reaches (Glenstrae Stream Drain, Balmoral Drain), 9% setback strips, held edge** | 87 reaches (Sumner Stream, Richmond Hill Waterway), 8% setback strips, held edge |
| The allowed shape | **1% under density overlays, Hills** | 0% under density overlays, 9 bach settlements |
| The rebuild’s receipts | **2,207 frames filed (2010–2017)** | 1,042 frames filed (2011–2017) |
| The pedal network | **0.0 km inside the outline, Te Ara Ihutai Coastal Pathway** | 0.0 km inside the outline, Te Ara Ihutai Coastal Pathway |
| The remembered names | 15 plaques, Barnett Park Sports Grounds, Redcliffs Public Library | **24 plaques, Scarborough Park, Port Hills 11 Rrz Land** |
| The rules on the ground | 8 drawn rules, Te Ngai Tuahuriri Runanga | **29 drawn rules, Rapaki Runanga** |
| On the hazard register | **7 parcels (2 current)** | 2 parcels (1 current) |
| Made ground on file | 88 parcels (3 unvouched) | 54 parcels (2 unvouched) |
| Surveyed rocks | 242 rocks (234 fell) | 6,354 rocks (3,792 fell, 1,176 wobble easy) |
| Cleanups on file | 1 parcel (none verified) | 1 parcel (none verified) |
| The model’s verdict | unlikely (68% of the outline) | unlikely (43% of the outline) |
| Engineered defences | 1 defence (none rated poor) | 47 defences (none rated poor) |
| The canopy | 396 trees (no veterans, 159 remembered felled) | **683 trees (5 veterans, 444 remembered felled)** |
| The plan’s word | Residential Hills (42% of the outline, 59% residential) | Open Space Natural (68% of the outline, 11% residential) |
| The plan’s reservations | 1% of the outline (1 designation, learning) | **1% of the outline (2 designations, power & signal, learning)** |
| The plan’s exceptions | **6% of the outline (13 matters, section 6)** | 1% of the outline (3 matters, section 6) |
| The listed city | 3 scheduled items (2 highly significant) | **13 scheduled items (2 highly significant)** |
| The usual complaints | Water Leak (471), Graffiti (208), Roading/Streets (192) | Parks (483), Graffiti (479), Water Leak (466) |
| Schools | 1 | **3** |
| Parks | 11 | **13** |
| Facilities | 0 | **1** |
| Tracks | 1 | **9** |
| Bus stops | 8 | **24** |
| Bus routes through | **2** | 1 |
| Heritage places | 4 | **39** |

Same record, same caveats, the stream counts reports, not virtue.

## Questions, answered briefly

**What is the difference between Redcliffs and Sumner?**

Redcliffs counts 2,150 people (2023) to Sumner's 3,490; Redcliffs covers 1.9 km², Sumner 11.99 km²; the record holds 2,456 reports for Redcliffs and 4,633 for Sumner.

**Which has more heritage places, Redcliffs or Sumner?**

Sumner, 39 on the heritage register to the other’s 4.

**Where do these numbers come from?**

The same public record for both, council reports, the crash register, the heritage schedule, Stats NZ’s counts. The stream counts reports, not virtue; the caveats are each suburb’s own.

HTML: https://www.chch.live/compare?a=redcliffs&b=sumner
Data: https://api.chch.live/suburb?slug=redcliffs · https://api.chch.live/suburb?slug=sumner