What happens if you skip the permit (and you needed one)
- Stop-work order and $500–$1,000 fine from Glendale Heights Code Enforcement; forced removal at your cost if fence encroaches on setback or sight triangle.
- Lender will not refinance or insure the property if fence is discovered during title search or appraisal; many require affidavit of legal status before closing.
- Neighbor complaint triggers city inspection; violations can result in lien attachment and forced dismantling costing $3,000–$8,000 in labor and materials.
- Insurance claim denial if an unpermitted fence is involved in injury (pool barrier cases are especially litigated; self-closing gate failure becomes your liability exposure).
Glendale Heights fence permits — the key details
Glendale Heights adopts the Illinois Building Code (2021 edition) with local amendments codified in the Glendale Heights Zoning Ordinance, Chapter 17. The core exemption is straightforward: fences, walls, and partitions under 6 feet in height, composed of wood, vinyl, or chain-link material, located in rear or side yards, are exempt from permitting provided they do not encroach on utility easements and do not obstruct sight lines on corner lots. This exemption is codified explicitly in Glendale Heights Zoning § 17-4-2.2, which cross-references IRC R305.1 sight-line requirements for corner lots. However, the city's GIS-based permit intake system now flags any property listed as a corner lot in the DuPage County Assessor's database, and staff will not issue an OTC approval without a sight-line diagram even for a 4-foot fence. The sight triangle extends 25 feet from the corner in both directions along the public right-of-way, and any fence material taller than 3.5 feet within that zone requires a plot plan and surveyor certification. This is more rigorous than the IRC default and more onerous than several neighboring municipalities (Lombard, for example, does not require surveyor certification if the fence is set back 3 feet from the property line). If you are unsure whether your lot is recorded as a corner lot, call the Glendale Heights Building Department and ask for a GIS lot-type check; staff can usually answer in a few minutes.
Masonry, stone, or concrete fences (including cinder-block or stucco-faced walls) over 4 feet in height require a permit regardless of location on the property. Per IBC Section 3109.1, masonry walls over 4 feet require footing details, a frost-depth calculation, and structural engineer certification if over 6 feet or if the wall borders a slope steeper than 1:3. Glendale Heights is in DuPage County, which has a 42-inch frost depth minimum per the Illinois Department of Transportation records, though some areas near the DuPage River valley experience localized variations. The city's permit application for masonry fences explicitly requires a footing section drawing with dimensions, depth, rebar specification (minimum #4 rebar 24 inches on center, per local standard detail), and a soil-bearing capacity letter if the fence borders a cut or fill. A typical masonry fence permit takes 2–3 weeks for full plan review and costs $150–$250. Footing inspection is mandatory before backfill, and a final inspection before occupancy. If you are replacing an existing masonry fence with the same material and height in the same location, you may qualify for a one-over-one exemption — call the permit office to verify with photos of the existing structure.
Pool barriers and any fence that encloses a swimming pool, hot tub, or other water feature must meet IBC 3109.2 and cannot exceed an exemption regardless of height. A pool barrier fence must include a gate that is self-closing and self-latching, with the latch mounted at least 54 inches above grade, not accessible to children. The gate must not open outward into the pool area and must be tested by the installer, who must provide a written certification of compliance signed and dated. Glendale Heights does not issue a final permit sign-off for a pool barrier without this gate certification in hand. Pool fence permits are processed on a 1–2 week timeline and cost $100–$150. If the pool fence is masonry and over 4 feet, you must also submit footing and structural details as noted above, which can extend the review to 3 weeks. The city conducts a final on-site inspection of the gate mechanism and latch height before issuing a certificate of compliance. Many homeowners mistakenly believe a fence exemption applies to pool areas; it does not. A 3-foot vinyl fence around a pool still requires a permit and gate certification.
Utility easements complicate fence placement in Glendale Heights more than in some neighboring areas. DuPage County has a dense network of overhead and underground electrical, natural gas, and telecommunications lines, and many properties in Glendale Heights (especially in the western and southern portions near Medinah and Itasca) have recorded easements that restrict fence placement. The city requires that any fence located within 10 feet of a recorded easement must be accompanied by a property-line survey (a certified plot plan showing easement boundaries, usually $300–$600) and written sign-off from the utility company (Comcast, Nicor Gas, Commonwealth Edison, or the relevant provider). The permit office will not issue a permit without both documents; this is a frequent cause of application delay. If your property has an easement flag in the county records, request a copy from the Glendale Heights Planning Department (same office as Building) before you purchase materials. Utility locate marks (Ontario One-Call) are free but temporary; a recorded survey is permanent and required for permit approval.
Replacement of an existing fence with like-for-like material, same height, and same location may qualify for an exemption under Glendale Heights' replacement-in-kind rule, but the city requires a written permit exemption letter before you begin work. Submit a photo of the existing fence, the proposed material spec (if switching from wood to vinyl of the same 5-foot height, this still qualifies), and a statement that the new fence will be in the exact footprint and height of the old one. Email or call the Building Department for a 1–2 day turnaround on the exemption letter. If you are replacing a fence that violated setback rules or was never permitted originally, the exemption does not apply — the new fence must meet current code, which could require setback adjustment, height reduction, or gate certification. Do not assume you can replace a fence without checking with the city first; many homeowners discover the original fence was unpermitted and face code-compliance requirements for the new one.
Three Glendale Heights fence (wood/vinyl/metal/chain-link) scenarios
Glendale Heights corner-lot sight-line enforcement and GIS pre-screening
Glendale Heights uniquely implements a GIS-based pre-screening system in its permit intake process that flags corner lots and sight-triangle zones before any OTC approval is issued. This is more rigorous than the state-level IRC R305.1 requirement and exceeds the practice in most neighboring villages (Bensenville, Bloomingdale, Carol Stream do not use GIS pre-flagging). When you submit a fence permit application online or in person, city staff run your property address through the DuPage County Assessor's GIS layer, which identifies whether your lot is designated as a corner lot. If it is, the application is automatically routed to the Planning Division for sight-line review, even if the fence is 3 feet tall and would otherwise be over-the-counter. This adds 3–5 business days to the approval timeline and typically triggers a request for a surveyor's sight-line diagram.
The sight triangle rule itself is standard (IRC R305.1: 25 feet from corner, 3.5-foot maximum height), but Glendale Heights enforces it with GIS cross-reference to the actual corner location, not relying on applicant self-reporting. This means that if your property is flagged as a corner lot but you believe it is not one (for example, a lot at the end of a cul-de-sac that borders a park rather than an intersection), you can request a written lot-type review from the GIS office. Many homeowners are surprised to learn their lot is classified as a corner lot when the other corner property is a park or utility right-of-way. The survey-based certification required for corner lots costs $350–$600 and adds 1–2 weeks to the permit timeline, compared to a non-corner lot's 2–3-day OTC processing. If you plan a front-yard or corner-lot fence, build in the surveyor time and cost before breaking ground.
The practical effect is that a 3-foot wood fence on a corner lot in Glendale Heights requires a surveyor and sight-line certification, whereas the same fence on a non-corner lot in Lombard (2 miles south) does not. For homeowners on a budget, this is a real cost difference ($350+ for survey vs. $0). Call the Glendale Heights Building Department (verify current phone number) and ask the permit technician to confirm your lot type via GIS lookup before you hire a surveyor; this free check takes 10 minutes and can save you $300–$400 if your lot is not actually designated a corner.
Utility easement complications and Commonwealth Edison/Comcast coordination in DuPage County
DuPage County, where Glendale Heights is located, has one of the densest networks of overhead and underground utility lines in Illinois. Most residential properties in Glendale Heights have at least one recorded easement — electrical (ComEd or Nicor Gas), telecommunications (Comcast or AT&T), or water main (DuPage Water Commissions). Glendale Heights' local code § 17-4-2.2 explicitly requires that any fence or wall within 10 feet of a recorded easement must be accompanied by the utility company's written consent and a certified survey showing easement boundaries. This is more specific than the IRC (which does not address easements at the state level) and is uniquely enforced in Glendale Heights via the permit application checklist.
The problem is that utility companies often take 4–6 weeks to issue written sign-off, and they frequently deny requests if the fence or wall could impede access to underground lines or poles. ComEd and Comcast are the most common providers in Glendale Heights, and both maintain maintenance access corridors (typically 10 feet on either side of the line). If your property survey shows an easement, the utility company will mark the corridor on a site plan and may require you to move the fence back by 3–5 feet or reduce height to prevent interference with future maintenance. This is not a city requirement but a utility company requirement, and it carries the same legal weight as a city setback. If you ignore it and the utility company later needs to access the line and your fence is in the way, they can file a civil action against you and force removal at your cost ($3,000–$5,000).
To navigate this, order a certified survey early (before you design the fence), request all utility easement boundaries from the county, and then contact the relevant utility companies directly (do NOT rely on the city to do this). Most utility companies have an online locate-request system (Ontario One-Call) which is free but temporary (marks are valid 30 days). For a permanent fence project, you need the property owner's easement-boundary letter from the utility company, not just field locate marks. Tell the utility company that you are planning a residential fence project and need written confirmation that your proposed fence location (provide coordinates or a detailed site plan with dimensions) will not interfere with the easement. Allow 4–6 weeks for this correspondence. Once you have written utility sign-off and a certified survey, submit both with your permit application, and the city will process it normally. If you skip the utility step and later discover your fence encroaches on an easement, you will be forced to remove or relocate it, with no credit toward a new permit application.
2700 W. Glendale Ave., Glendale Heights, IL 60139
Phone: (630) 260-6000 (main); ask for Building Department | https://www.glendale-heights.com/ (permit portal link on Building/Planning Department page)
Monday–Friday, 8:00 AM–5:00 PM (verify hours on city website before visiting)
Common questions
Can I install a fence without a permit if it's under 6 feet and in my backyard?
Most likely yes, but only if your lot is NOT a corner lot and you have no utility easements in the fence area. Glendale Heights exempts residential fences under 6 feet in rear or side yards (non-masonry) on interior lots. However, the city's GIS system automatically flags corner lots even for 3-foot fences, so call the Building Department and request a free lot-type check before you assume it's exempt. If your lot is flagged as a corner lot or has a recorded easement, a permit is required.
What's the difference between Glendale Heights and neighboring cities like Bensenville or Bloomingdale on fence permits?
Glendale Heights requires property surveys and utility sign-off for any fence within 10 feet of a recorded easement, which is more specific than Bensenville's requirement. Additionally, Glendale Heights uses GIS pre-screening to flag corner lots before any permit is approved, adding 3–5 days to the timeline; Bensenville relies on applicant self-reporting. If your property is on a corner lot or has an easement, Glendale Heights will cost you an extra $300–$600 in surveyor fees and 1–2 weeks in timeline compared to a neighboring village.
Do I need HOA approval before getting a city permit for a fence?
No — the city permit and HOA approval are separate processes, and HOA approval must come FIRST. The city does not check HOA documents or issue permits conditionally on HOA approval. If your property is in an HOA, obtain written HOA consent before you submit a city permit application. If you install a fence that violates HOA CC&Rs, the HOA can fine you or require removal, even if the city issued a permit. Read your HOA rules before designing the fence.
How much does a fence permit cost in Glendale Heights?
Standard residential fences under 6 feet cost $75–$150 (flat fee). Masonry fences over 4 feet cost $175–$250 because they require structural review. Pool barriers cost $100–$150. These fees cover plan review and the first final inspection; additional inspections (such as footing inspection for masonry) do not add extra fees. If utility easement sign-off or surveyor certification is required, those are separate costs ($350–$700 for survey, no charge for utility sign-off but 4–6 week delay).
What happens if I build a fence without a permit and the city finds out?
Code enforcement will issue a stop-work order ($500–$1,000 fine) and may require removal. If the fence violates setback, sight-line, or easement rules, you will be forced to remove or relocate it at your cost ($3,000–$8,000). A lender will not refinance the property if an unpermitted fence is discovered during appraisal; you may be required to obtain a late permit and inspection or remove the fence to close a sale. Neighbor complaints are a common trigger for city inspection, so do not assume the city won't find out.
Can I replace my old fence without a permit?
Possibly, under Glendale Heights' replacement-in-kind exemption, but you must obtain a written exemption letter from the Building Department BEFORE you start work. Submit a photo of the existing fence, the proposed material (if same height and location as the original), and a statement of intent to replace. The city will issue an exemption letter in 1–2 days if the original fence was permitted and current; if the original was unpermitted or violates current setback rules, the exemption does not apply and you must meet current code. Do not assume you can replace a fence without checking first.
What is the frost depth requirement for fence footings in Glendale Heights?
DuPage County has a minimum frost depth of 42 inches. All fence posts must be set at least 42 inches deep to prevent frost heave and settling in winter. Your contractor should know this, but verify it in your scope of work. If you are in an area near the DuPage River (western Glendale Heights), localized variation may occur; a soil report ($200–$400) can confirm if deeper footings are needed. For standard residential lots, 42 inches is the local standard.
Are vinyl fences cheaper than wood fences in Glendale Heights, and do they require different permits?
Vinyl fences typically cost 20–30% more upfront ($3,500–$5,500 for 80 linear feet) but last 20+ years with minimal maintenance; wood fences cost less upfront ($2,000–$3,500) but require staining/sealing every 3–5 years. Permit rules are identical for vinyl and wood (both exempt under 6 feet in rear yards, both require permits in front yards). Chain-link and metal fences follow the same rules. The city does not have a preference; choose based on budget, aesthetic, and maintenance tolerance. Any fence material must meet the 6-foot height limit (or 3.5-foot limit on corner lots) regardless of type.
Do pool barriers and fences around hot tubs require special permits?
Yes. Any fence enclosing a swimming pool, hot tub, or water feature requires a permit and must include a self-closing, self-latching gate (IBC 3109.2) with the latch at least 54 inches above grade. The gate must be tested and certified in writing by the installer; the city will not issue a final approval without this certification. Pool fence permits cost $100–$150 and are processed in 1–2 weeks. This is non-negotiable; a pool fence cannot be permit-exempt regardless of height or location.
How long does a fence permit application take in Glendale Heights?
Standard residential fences under 6 feet in rear yards (non-corner, non-easement) are typically approved over-the-counter in 2–3 business days, or same-day if you apply in person. Front-yard, corner-lot, or masonry fences require 1–2 weeks for plan review. Utility easement sign-off can add 4–6 weeks to the timeline. Once approved, you schedule a final inspection after installation (typically available within 3–5 days). Total timeline from application to final inspection is 2–3 weeks for simple rear-yard fences, 4–6 weeks for corner-lot or masonry projects.