# Wireless Site Feasibility Study Engineering: Decide Which Candidates Advance **Published:** October 3, 2026 **Last updated:** October 3, 2026 **Title tag:** Wireless Site Feasibility Study Engineering 2026 **Meta description:** Wireless site feasibility study engineering: zoning, land constraints, structure options, power and fiber availability, client RF inputs, FAA and ASR screening. **slug:** wireless-site-feasibility-study-engineering **primary_keyword:** wireless site feasibility study engineering **plan_ref:** plan-2026-09-23 **author:** Devin Martinez **datePublished:** 2026-09-24 **dateModified:** 2026-09-24 **category:** Wireless & Small Cell **archetype:** B **spec_version:** 2.0 **wordCount:** 2897 **read_time:** 12 **hero:** /blog/img_wireless_site_feasibility_study_engineering.webp **hero_alt:** A worker in a hard hat and safety vest walks a gravel hilltop toward a fenced lattice tower, past a parked white SUV. A willing landlord does not make a wireless site buildable. A parcel can fit the proposed compound while the access easement stops short of the road, or an apparently convenient streetlight can belong to an owner that will not accept the proposed equipment. Those are selection problems. Discovering them after detailed drawings begin turns a candidate search into redesign. We treat feasibility as a decision about whether a candidate deserves further engineering investment. This guide covers new macro and small-cell sites, including land constraints and structure options, with power and fiber checked against client-supplied RF requirements. It stops at feasibility: we are not predicting coverage or selecting radio parameters, and a favorable study does not authorize construction. ## What Wireless Site Feasibility Study Engineering Must Establish Wireless site feasibility study engineering tests whether a proposed radio location has a workable physical and approval path before detailed design begins. FAA notice screening includes structures exceeding 200 feet above ground level and shorter structures meeting airport-related criteria. We connect that screening to land access and structure suitability. Utility service evidence completes the screen. ### Freeze the candidate before comparing it The carrier's search area is an input, not a substitute for a site definition. We need a specific proposed position and an equipment basis that identifies the physical installation being screened; a parcel centroid alone cannot tell the structural engineer which roof bay or pole the carrier intends to use. Keep the original search-area reference attached so a later move can be returned to the client for RF acceptance. Overall height and antenna mounting height differ. They answer different questions. A change that appears minor on a radio sketch can alter the aviation screen or the equipment support concept, especially when an antenna extends above the supporting structure. Record ground elevation separately, using a stated vertical reference, rather than carrying an unlabeled elevation through successive drawings. **The client retains the RF decision.** Our feasibility basis uses the client-supplied search area and mounting constraints, plus the physical equipment schedule needed for engineering. If a permitted position falls outside those constraints, we return the alternative for client review. We do not label it equivalent coverage because it is on the same property or looks close on an aerial image. ### Separate a missing fact from a failed candidate An unanswered utility inquiry proves neither availability nor unavailability. The service question remains open. Conversely, a utility pole visible beside the parcel is not a service commitment. We assign each material uncertainty to the party that can resolve it and identify the selection decision it affects. That keeps a slow response from becoming an unsupported rejection and prevents optimism from being recorded as confirmation. A desktop study has a real weakness: it can make an uncertain site look precise. We can align parcel lines with imagery and still be wrong about a gate's usable width or a roof's condition, because those records were created for different purposes and may represent different dates. Our recommendation should expose that weakness. Field verification is warranted where an unseen condition could reverse the candidate ranking. The drawing should show the proposed installation at a scale that exposes its neighbors. A cabinet symbol without its working clearance can appear to fit where the maintained installation cannot, while a lease outline that excludes the power route hides a separate property negotiation. We mark those preliminary limits clearly and leave enough surrounding context for the client to understand why a candidate remains conditional. Feasibility effort should follow the consequence of being wrong. If the carrier cannot accept any lower mounting position, settle the credible height restriction before developing alternate cabinet arrangements; if backhaul has no plausible connection point, obtain the provider's response before commissioning a detailed compound layout. We do not spend equally on every uncertainty simply because each appears on the same checklist. The comparison below separates the decision paths. Its purpose is to show what supports further investment, not to make a favorable answer in one row cancel a fatal constraint in another. | Screening path | Evidence to seek | What keeps the candidate conditional | | --- | --- | --- | | Land and zoning | Applicable use classification and mapped rights for the installation and access | Unresolved approval path or rights outside the available parcel | | Structure candidate | Owner acceptance path and records supporting the proposed equipment arrangement | Missing structural basis or incompatible mounting position | | Power and fiber | Provider responses tied to a defined service point and connection route | Unconfirmed capacity or access rights along the connection | | FAA and ASR | Coordinate and height basis with documented screening results | Required agency action or a change invalidating prior screening | ## Land and Zoning: Screen the Whole Site Footprint A zoning designation only begins the land review. We check how the responsible jurisdiction classifies the proposed wireless use and whether the specific facility follows an administrative path or needs discretionary approval, using the ordinance provisions in force for that location. A prior permit for another parcel is context, not permission. The study should identify the actual reviewing authority before attaching a schedule to its process. **Property control extends beyond the equipment pad.** An owner may offer a compound while another party controls the access road, and a rooftop lease may omit the riser path between the roof and the utility entry. We compare the proposed installation with the rights the client can actually obtain. Where boundaries or easements determine fit, a parcel viewer cannot replace the appropriate survey and title work. ### Small-cell placement and usable access A sidewalk location needs more than an available pole face. We examine the space remaining around the proposed equipment and the practical access needed to maintain it, then flag conflicts for the applicable right-of-way review. A cabinet relocation that clears pedestrian movement may lengthen the power route or require a different property agreement. That consequence belongs in the candidate comparison before the location is selected. For a macro site, construction access and continuing maintenance access can differ sharply. A gate suitable for a service vehicle may not accommodate the equipment needed to build the foundation, particularly where a steep approach or limited turning space constrains delivery. We screen those conditions without declaring a final construction method. The client needs to know whether further access investigation could change the land requirement. Wetland indicators and flood mapping belong on the preliminary constraints drawing, with their source and limits stated. We do not treat a desktop boundary as a field delineation or assume that mapped absence proves no resource is present. The study identifies where qualified investigation is needed and carries the resulting uncertainty into selection. Our article on [existing-infrastructure survey evidence](/blog/osp-existing-infrastructure-survey-guide) explains why records and observed conditions must remain distinguishable. ## Structure Candidates: Compare the Support You Can Use An existing support can reduce new-site work, but only if the proposed installation fits its accepted use and physical condition. We compare an existing tower or rooftop against a new support using the equipment arrangement the client has supplied, rather than assuming that unused-looking space represents available capacity. Owner permission does not establish engineering suitability. Both need an answer before detailed design can rely on the support. ### Existing towers and rooftops For an existing tower, request the current configuration records and available structural reports before assuming the proposed mount is usable. A report for a different antenna arrangement cannot establish capacity for the new equipment. At feasibility, we identify the analysis still needed and whether the supporting information exists; final member checks or reinforcement design belong to the subsequent engineering scope. A rooftop candidate needs an identifiable load path into the building, not simply an open roof area. We examine the available structural records and the proposed support position together, because relocating equipment to a structurally credible bay may conflict with the client's mounting constraints. Roof access and waterproofing interfaces also affect suitability. Where the record is inadequate, describe the investigation needed instead of offering a capacity conclusion. ### New supports and utility poles A new support allows a purpose-designed arrangement, but the site must accommodate its foundation and associated work. We flag subsurface uncertainty and access limitations that could affect the foundation concept, without converting a preliminary screen into a geotechnical recommendation. The absence of an existing structure removes one record problem; it introduces a different set of site-development questions that the candidate budget must acknowledge. For a utility-pole small cell, available space is subject to the owner's attachment process and engineering criteria. Replacement or make-ready may affect the preferred location, so we establish the owner's review path early and carry the possibility of that work into the comparison. Our [wireless engineering feasibility services](/services/wireless-engineering/) connect these structure questions with the surrounding site constraints while keeping the engineering work in-house. ## Power and Fiber: Confirm a Connection, Not Nearby Plant The nearest visible facility is a lead for investigation. It is not proof of service. We ask the electric provider to evaluate the proposed load and location, then distinguish its preliminary response from a committed service arrangement; the same discipline applies when a fiber map shows plant near the candidate but says nothing about an available connection or delivery commitment. ### Electric service availability The power inquiry should use the equipment load basis that corresponds to the screened installation. We identify the proposed meter location and the customer-to-utility boundary, because a service point outside the available rights can turn a short electrical connection into a separate land problem. Required distribution work remains a provider question until answered. A nearby transformer alone does not establish spare capacity. Backup-power expectations can change the footprint even before electrical design starts. If the client requires a generator or battery installation, carry its physical allowance into the zoning and access screen rather than leaving it as an equipment note to be resolved later. We request confirmation of the intended arrangement. The study should show which candidate findings depend on that assumption and require review when it changes. ### Fiber entry and route availability A backhaul provider must identify a credible service path and demarcation, with the proposed delivery basis distinguished from a general network-coverage map. Existing conduit may be unavailable or unsuitable for the connection. We trace a preliminary route to the site boundary and identify where further investigation is needed; our [fiber route design for 5G backhaul guide](/blog/fiber-route-design-for-5g-backhaul) explains how connection constraints shape the route. Crossings deserve their own attention. A fiber line across the road may require an agreement or a permitted crossing that is more consequential than a longer route on accessible property, particularly when the preferred path crosses a controlled transportation corridor. We carry the connection constraint into the candidate ranking. Distance is useful, but distance without rights and service confirmation is an incomplete comparison. > **Keep the service assumption visible.** If the provider has only acknowledged the inquiry, label the candidate's connection unconfirmed. Do not let a preliminary route drawing acquire the meaning of a provider commitment when it is copied into a later presentation. ## FAA and ASR Screening: Record the Agency Path Height screening cannot be reduced to a tower-height cutoff. The FAA's *Notification of Proposed Construction or Alteration on Airport Part 77* guidance, updated June 13, 2023, identifies notice criteria under 14 CFR 77.9, including construction exceeding 200 feet above ground level and shorter construction meeting airport-related criteria. We use the complete criteria for the proposed location. A small-cell label does not settle applicability. ### FAA notice and temporary equipment FAA Form 7460-1 is the Notice of Proposed Construction or Alteration. Where notice is required, the feasibility record should identify that filing path and the information still needed to support it, rather than describing a preliminary screen as an FAA determination. We retain the coordinates and total-height basis used for screening. A changed location or height needs reconsideration against that basis. Temporary construction equipment also deserves screening attention when its operating height or position differs from the permanent installation. The FAA guidance expressly includes cranes and boom trucks among temporary obstructions. Feasibility may not establish the final lift arrangement, but it can flag the need to evaluate it once known. We do not assume a permanent-structure result covers equipment that was never represented in the submission. ### FCC Antenna Structure Registration FCC Antenna Structure Registration, or ASR, is a separate check under 47 CFR 17.4, *Antenna structure registration*. We identify whether the candidate requires an ASR application or an update to an existing registration, using the applicable criteria and the actual proposed configuration. An ASR database entry describes a registered structure; it does not establish zoning permission or structural capacity for the proposed installation. The FAA outcome and ASR status should remain separately identifiable in the report. Environmental or historic-preservation review questions also need their own disposition through the applicant's responsible review process, rather than being treated as cleared because a structure has a registration number. The [ASR filing guide](/blog/antenna-structure-registration-asr-filing) provides the next step when the screening points toward a registration action. ## Use Wireless Site Feasibility Study Engineering to Choose the Next Investment **Macro-site developers:** Resolve land control and the credible support concept before funding a detailed compound package. If the mounting position cannot survive the zoning or aviation screen, return the candidate to the client's RF team for a revised option. Spending on increasingly detailed drawings will not remove that selection constraint, and a conditional recommendation must say what would change the decision. **Small-cell program managers:** Prioritize the structure owner's acceptance path and confirmed utility connections before treating a group of nearby poles as a deployable cluster. Keep location-specific exceptions visible. A uniform equipment arrangement may simplify the program, but it cannot establish permission or service availability for every support; each exception needs a named next action before the program commits detailed-design effort. **Owners choosing the next scope:** Commission the investigation that could reverse the ranking first. Where land rights are settled but structural records are missing, pursue the support investigation; where the support is credible but backhaul is unconfirmed, seek the provider's service response. Our feasibility recommendation should make that choice explicit and state which conclusions remain valid while the answer is pending. > **Bring the unresolved candidate decision to engineering.** [Discuss the site's feasibility constraints with Draftech](/#dt-contact) before authorizing drawings that depend on an unanswered land or service question. Draftech's [engineering and delivery services](/services) connect candidate selection to the next defined scope, so an unavailable access route or unconfirmed service point stays visible as design advances. Draftech engineering is 100% in-house; full turnkey construction is delivered by Draftech-managed subcontract crews under Draftech's QA/QC and safety program. Active in 24 states. Available across all 50 U.S. states. Send the candidate's unresolved constraint to [info@draftech.com](mailto:info@draftech.com). For a qualifying route serving the selected site, Draftech's [free-design offer](/free-design) covers engineering the first 20,000 linear feet at no cost, from feasibility and field survey through permit approval. The owner reviews each request before Draftech commits the package, so submit the proposed route and its connection constraints for that review when defining the next engineering scope. ## Frequently Asked Questions ### Does a structure below 200 feet avoid FAA review? No. The FAA notice criteria include airport-related conditions that can apply to structures below 200 feet above ground level. We screen the proposed coordinates and total height against the applicable criteria, rather than treating a short tower or small cell as automatically outside the process. A material change to the location or height requires reconsidering the earlier result. ### Is an FAA notice the same as an ASR registration? No. FAA Form 7460-1 starts the applicable notice process for proposed construction or alteration, while ASR concerns FCC antenna structure registration. A feasibility report should identify each applicable path separately and preserve the configuration used for screening. Neither a preliminary notice screen nor a registration record establishes structural capacity or grants local permission for the client's proposed equipment installation. ### Does Draftech's feasibility scope include RF design? This feasibility scope uses client-supplied RF requirements to screen a physical site; it does not include RF design or promise coverage performance. Draftech's engineering work is 100% in-house, and the client retains acceptance of changes to its radio requirements. If a height restriction or alternate support changes the supplied basis, we return that proposed change for the client's RF review. ### What if an existing tower already has an ASR number? An existing registration is evidence to examine, not automatic clearance for the proposed equipment. Under 47 CFR 17.4, the ASR question concerns the antenna structure and applicable registration requirements; feasibility must compare the proposal with the recorded configuration. We also need a separate structural basis and the owner's acceptance path, because a registration number cannot establish spare capacity or attachment rights. ### Can the free-design offer cover a site's connecting route? A qualifying route can be considered under Draftech's offer to engineer its first 20,000 linear feet at no cost, from feasibility and field survey through permit approval. Draftech commits the route package only after the owner has reviewed the request. Submit the proposed connection and its known constraints for review; the offer does not make every wireless site or connecting route automatically eligible. ## About the Author Devin Martinez is CTO & Partner at Draftech International, with responsibility for wireless engineering and field operations. Contact him through [info@draftech.com](mailto:info@draftech.com).