Ashton, Idaho — Rivers Edge on the Henry's Fork Subdivision
Barn Feasibility Study
This feasibility study examines how large a barn can be built on the property at 3644 Fisherman's Drive, Ashton, Idaho, and how close to the highway it can be sited in the northeast corner of the lot. The property is subject to the Rivers Edge on the Henry's Fork CC&Rs (Instrument No. 535913, Fremont County, recorded October 2011) as well as Fremont County zoning codes.
Address: 3644 Fisherman's Drive, Ashton, Idaho 83420
Subdivision: Rivers Edge on the Henry's Fork — Fremont County, Idaho
HOA: Rivers Edge on the Henry's Fork Homeowners Association, Inc.
Governing Document: CC&Rs Instrument No. 535913, recorded October 6, 2011, Fremont County Recorder.
Target Area: Northeast corner of the lot — nearest the highway/road frontage.
Coordinates: N 44.10318°, W 111.42634° | UTM Zone 12: X 465878, Y 4883421
Lot Size: 4.182 acres | Parcel ID: RP003090020060
Working assumption: 50-foot road setback (arterial/highway). The lot is large enough that this has no material impact on barn size.
| Boundary | Setback | Notes |
|---|---|---|
| Road / Highway (NE frontage) | 50' | Working assumption — plenty of room on this lot |
| Side property line (NE corner) | 20' | Applies to the side boundary |
| Rear property line | 30' | If barn approaches rear of lot |
The CC&Rs define a Building Envelope as a ½-acre contiguous plot within the Lot boundaries where the Principal Residence, parking, garages, porches, and decks must be located. However, the CC&Rs explicitly state:
This is a significant advantage — the barn footprint is not constrained to the ½-acre Building Envelope. It must still comply with setbacks and Design Committee approval.
| Roof Slope | Max Height |
|---|---|
| Less than 6:12 pitch | 25 feet |
| Greater than 6:12 pitch | 30 feet |
Height is measured from the highest roof ridge to the lowest adjacent grade. For a traditional barn with a steep gable roof (typically 8:12 to 12:12 pitch), you can build up to 30 feet tall. The CC&Rs cap primary roof forms at 9:12 maximum pitch.
The CC&Rs do not specify a maximum footprint for outbuildings/barns — only the Principal Residence has min/max footprint rules. The practical constraints on barn footprint are:
If the barn is intended for horses, specific CC&R provisions apply:
| Rule | Detail |
|---|---|
| Permanent horse housing | Allowed only on Lots designated on Exhibit C (the Horse Lot map) |
| Temporary horses (interior lots) | No more than 7 consecutive nights; no more than 12 days per calendar month |
| Maximum horses at any time | 4 horses per lot |
| Riverfront Lots | No horses permitted, temporary or permanent |
| Livestock (cows, goats, sheep, llamas) | Prohibited on all residential lots |
No barn construction may begin without written Design Committee approval. This is a prerequisite even before applying for a Fremont County building permit.
The Design Committee must respond within 15 days of final plan submission.
The main house sets the palette: near-black board-and-batten siding, dark standing seam metal roof, exposed timber, deep overhangs, horizontal emphasis. All six concepts below are designed to complement it — and all comply with CC&R requirements for natural materials, subdued colors, and traditional farm/ranch forms.
Classic monitor barn form with a raised center clerestory for light and ventilation. Black board-and-batten siding, dark standing seam metal roof. Maximizes the 30' height allowance. Most traditional barn silhouette — directly matches the Henry's Fork landscape.
Wide, low-slung multi-bay structure echoing the horizontal emphasis of the main house. Shallow gable, dark standing seam metal, black siding with deep overhangs. Ideal for equipment, vehicles, and implements. Visually dramatic from the road.
Main steep-gable barn connected to a lower workshop/garage wing — two volumes linked by a covered breezeway with timber posts. Mirrors the additive form language of the main house. Dark exterior throughout. Maximizes usable space in the NE corner footprint.
Exposed heavy timber frame (Douglas fir or glulam) with large glass flanking panels that showcase the structure. Dark metal siding, standing seam roof. The most architectural option — matches the sophistication of the main house. Could double as event space or luxury stable.
Traditional gambrel roof maximizes upper-floor storage — classic hay loft with large upper doors at the peak. Black siding, dark metal roof, decorative cupola. The gambrel silhouette is iconic and reads immediately as "barn" from the road. Excellent second-floor utility space.
A contemporary take: low shed-profile main volume with a raised clerestory band for passive daylighting — floods the interior with north or south light without heat gain. Dark metal exterior, black siding, timber posts at corners. Ideal if the barn doubles as a workshop, studio, or garage.
| # | Action | Who |
|---|---|---|
| 1 | Obtain current survey or plat — confirm exact lot dimensions and NE corner boundaries | Owner / Surveyor |
| 2 | Verify lot designation on CC&R Exhibit C — confirm Horse Lot status | Owner / HOA |
| 3 | Check Fremont County zoning for lot coverage maximums and ag structure rules | Owner / County Planning |
| 4 | Choose design concept and engage architect for barn drawings | Owner |
| 5 | Submit Sketch Plan to Design Committee for early feedback | Owner / Architect |
| 6 | Submit Final Plan package to Design Committee (15-day review) | Owner / Architect |
| 7 | Apply for Fremont County building permit after Design Committee approval | Owner / GC |
| Risk | Details |
|---|---|
| Riverfront Lot restrictions | This is Block 2, Lot 6 — a Riverfront Lot. Horses are prohibited entirely per the CC&Rs. Barn for horses is not permitted; barn for equipment/storage/garage is fine. |
| Design Committee discretion | Committee has broad authority to reject materials, colors, or designs they find incompatible |
| Fremont County overlap | More restrictive of CC&Rs vs. County code applies — County may have tighter rules |
| Survey needed | Without a current survey, exact buildable footprint in NE corner is unknown |
| Document | Details |
|---|---|
| CC&Rs | Instrument No. 535913, Fremont County Recorder, recorded Oct 6, 2011 |
| Declarant | Henry's Fork Properties, LLC — Drake Munson, Manager |
| HOA Registered Office | 4194 Sunset View Drive, Salt Lake City, UT 84124 |
| Fremont County Planning | Verify road classification, zoning, lot coverage limits |