Both large and smaller projects can require GESC review.
The City publishes a standard GESC path at one acre or more and a Low Impact GESC path below one acre when the work is not part of a common plan of development.
Colorado Outdoor Estates Registry
Castle Pines requires the owner to keep municipal building review, grading and erosion control, drainage, utilities, fire review, and any private design approval on one schedule. Disturbance area—not the marketing name of the project—controls the early stormwater question.
Authority path
Is the parcel inside the City, which private design body applies, and how much land disturbance will the complete project create?
Current local signals
The City publishes a standard GESC path at one acre or more and a Low Impact GESC path below one acre when the work is not part of a common plan of development.
The City currently publishes three-week targets for the first, second, and subsequent complete GESC submittals, with a one-week signature-set target. These are planning targets, not guarantees.
Owner decision matrix
| Scope | Trigger to verify | Starting authorities | Evidence to assemble |
|---|---|---|---|
| Pool, spa, or water environment | Excavation, barriers, utilities, equipment, grading, drainage, private review, or floodplain conditions. | City building and Public Works; fire, utility, and private review as applicable. | Survey, disturbance area, pool and equipment plan, barriers, utilities, drainage, access, restoration, and private-review package. |
| Pavilion, pool house, or four-season room | Accessory building, enclosure, kitchen, bathroom, fire, structural work, or private exterior modification. | City building and planning; HOA/DRC; fire and utility providers as applicable. | Use, enclosure, setbacks, height, roof and snow drainage, structure, utilities, fire, lighting, materials, and review sequence. |
| Outdoor kitchen or fire feature | Gas, electrical, plumbing, roof, structure, appliance clearances, fire review, or private modification. | City trade and building paths; applicable fire authority and private design body. | Appliances, fuel, shutoffs, electrical load, ventilation, clearances, lighting, drainage, screening, and seasonal operation. |
| Retaining, grading, or drainage | Any cut, fill, clearing, grubbing, walls, changed drainage, or permanent stormwater control. | City Public Works and building review; HOA/DRC where applicable. | Total disturbance, cut and fill, wall geometry, surcharge, erosion controls, drainage report or letter, controls, surety, and stabilization. |
| Landscape, irrigation, or hardscape | Land disturbance, drainage changes, patios, walls, water features, lighting, or private landscape review. | City Public Works and the applicable private design body. | Disturbance limits, grading, drainage, planting, irrigation, lighting, materials, tree impacts, access, and final stabilization. |
| Driveway, staging, or right-of-way access | Changed access, construction vehicles, temporary controls, utility work, or public-right-of-way use. | City Public Works; HOA or metropolitan district where applicable. | Route and turning plan, temporary controls, haul and delivery plan, street protection, snow conditions, restoration, and permit responsibility. |
Official starting points