Newcastle residential zoning
Newcastle residential zoning and setbacks
Newcastle publishes three separate surface controls. Building coverage can screen the house footprint, while hard surface and impervious surface must be calculated separately for the whole site.
Reviewed against official Newcastle sources, August 2026Official starting point: Newcastle residential dimensional table. Verify the parcel zone, current code, and every applicable footnote before fixing the design.
Newcastle residential base-zone screen
| Zone | Minimum lot | Front / street | Rear | Side / interior | Height | Size controls |
|---|---|---|---|---|---|---|
| LOS / LOS/COS | 40,000 sq ft | 30 ft | 35 ft | 35 ft | 30 ft | 2% building; 6% impervious; 10% hard surface |
| COS / LOS/COS | 40,000 sq ft | 30 ft | 35 ft | 35 ft | 30 ft | 2% building; 6% impervious; 10% hard surface |
| R1 / R-1 | 40,000 sq ft | 30 ft | 25 ft | 10 ft | 30 ft | 15% building; 20% impervious; 20% hard surface |
| R4 / R-4 | 7,500 sq ft | 10 ft | 20 ft | 5 ft | 30 ft | 35% building; 40% impervious; 45% hard surface |
| R6 / R-6 | 6,000 sq ft | 10 ft | 20 ft | 5 ft | 30 ft | 35% building; 40% impervious; 45% hard surface |
| R12 / R-12 | 3,600 sq ft | 10 ft | 25 ft | 5 ft | 35 ft | 50% building; 55% impervious; 60% hard surface |
| R24 / R-24 | 3,600 sq ft | 10 ft | 25 ft | 5 ft | 65 ft | 50% building; 70% impervious; 85% hard surface; 300% FAR |
Code audit
Verified jurisdiction rule checklist
Each item below links to the official source used by the feasibility-study logic. "No general private-view right identified" is a limited conclusion from the reviewed city code, not a title clearance or statement about private covenants.
| Rule | Verified screen | Official source |
|---|---|---|
| FAR | LOS/COS and R-1 through R-12 have no base FAR; R-24 lists 3:1 and requires a broader multifamily/project-type review. | NMC 18.12.030 ↗ |
| Setbacks | The current table ranges from 30/35/35 ft in LOS/COS to 10/5/25 ft in R-12/R-24. A 10-ft critical-area tract/buffer setback also applies. | NMC 18.12.030 ↗ |
| Lot coverage | Exact building coverage ranges from 2% in LOS/COS to 50% in R-12/R-24 and is kept separate from hard and impervious limits. | NMC 18.12.030 ↗ |
| Impervious / hard surface | Hard-surface and impervious percentages are independent. A permeable-surface adjustment is not assumed without the required infeasibility finding. | NMC 18.12.030 ↗ |
| Height | Base height is 30 ft in LOS/COS through R-6, 35 ft in R-12, and 65 ft in R-24. | NMC 18.12.030 ↗ |
| Trees | Development requires the applicable significant-tree inventory, retention/replacement, and protection review. | Newcastle Municipal Code ↗ |
| Existing private views | No general private-building-view right was identified in the residential table. Recorded restrictions and project-specific design rules remain separate. | NMC 18.12.030 ↗ |
Parcel-specific checks
What can change the table
- R-1 through R-12 have no base FAR. R-24 lists 3:1 but usually requires a broader multifamily and design review.
- A 10-ft setback from critical-area tracts and buffers applies in addition to the base table.
- Do not replace building coverage with the higher hard-surface or impervious allowance; all applicable ceilings must pass.
How to use this guide
Turn a zone row into a useful screen
- 1
Find the parcel on the city's current zoning map and copy the complete zone name.
- 2
Read the full row, table footnotes, and definitions. Do not use only the front setback.
- 3
Check corner-lot yards, access easements, critical areas, shorelines, trees, overlays, and recorded restrictions.
- 4
Use a boundary and topographic survey to place the setbacks against the actual lot.
- 5
Have the city or project team confirm any uncertainty before the design is fixed.
Official resources