Research by DoINeedAPermit Research Team · Updated May 2026
The Short Answer
Yes. East Lansing requires a permit for any deck attached to your house, regardless of size or height. The 42-inch frost line and ledger-flashing scrutiny are strict—plan for 2–3 weeks and $200–$400 in permit fees.
East Lansing's Building Department enforces Michigan's Residential Code (which adopts the 2015 IRC with state amendments) and adds a strict interpretation of ledger-board flashing that catches most first-time applicants. Unlike some Michigan towns that exempt ground-level decks under 200 square feet, East Lansing requires a permit for any deck attached to the house, period—even a small 8x10 second-story landing. The 42-inch frost-line requirement (which applies across Ingham County) means your footings must go deep; many homeowners underestimate excavation costs. East Lansing's online permit portal (earlypermits.com or the city's direct portal) requires a stamped plan if your deck is over 200 square feet or more than 30 inches high—or if you're not a licensed contractor. Owner-builders are allowed for owner-occupied single-family homes, but you'll need to pull the permit yourself and attend three inspections (footing pre-pour, framing, final). The city's plan-review timeline is typically 10–15 business days; add 2–3 weeks if revisions are needed (most common: ledger flashing detail per IRC R507.9 or footing-depth miscalculation).

What happens if you skip the permit (and you needed one)

East Lansing attached-deck permits — the key details

East Lansing adopts the Michigan Residential Code (MRC), which mirrors the 2015 IRC with state-level amendments. The foundational rule is simple: any deck attached to the house requires a permit. This includes decks at any height, any size, and any material. Unlike the IRC R105.2 exemption that some jurisdictions recognize for freestanding decks under 200 square feet and under 30 inches, East Lansing's code officer treats all attached decks as requiring structural review. The reason: an attached deck is structurally dependent on the house; the ledger board is a critical load path, and flashing failures cause rot in rim joists and band boards—the most expensive repair. East Lansing's code enforces IRC R507.9 (ledger flashing) with zero tolerance for hand-waving. Your plan must show a continuous flashing detail: membrane under the ledger, flashing over the rim joist and house wrap, with DWV (Drain-Waste-Vent) type flashing or comparable (no tar tape, no caulk-only). This detail alone causes 30–40% of first submissions to come back for revision.

Frost depth and footing design drive cost and timeline more than any other factor in East Lansing. The frost line in Ingham County is 42 inches below grade (some sources cite 48 inches in the northern townships; verify with the city's Building Department). Footings that don't reach below frost depth will heave in winter, tipping your deck and tearing the ledger board away from the house. Many homeowners figure 12–18 inches for footings, which is catastrophic in Michigan Zone 5A/6A climate. Your plan must specify post footings at 42 inches minimum below grade, frost-protected below the frost line, with concrete pads or 4-inch-diameter holes per IRC R507.2. Digging 42 inches deep in glacial till (Ingham County's native soil) is labor-intensive; expect $100–$300 per post hole for excavation alone. If your lot is in the sandy north-Lansing zone (near MSU campus or Sparrow Hospital), soil bearing capacity is lower (1,500 psf vs 2,000 psf in till), which may require wider pads or engineered footings. The Building Department will ask for a soils report if your deck is large (over 300 sq ft) or tall (over 8 feet); this adds $150–$400 and 1–2 weeks to review.

Guardrails and stairs are where many DIY plans fail East Lansing's inspection. IRC R312.1 requires guardrails 36 inches minimum from deck surface to top rail (measured vertically). Michigan adds a footnote: some inspectors enforce 42 inches for residential decks, particularly if the deck is elevated more than 6 feet or is a second-story landing. Balusters (the vertical spindles) must be spaced no more than 4 inches apart (a 6-inch sphere cannot pass between them). Stairs are governed by IRC R311.7: each riser must be 7–7.75 inches tall, treads 10 inches minimum depth, and the stairway must have a landing at top and bottom. The most common failure: stair stringers that don't have a landing at the deck level—code requires a 36x36-inch landing (or wider if the deck is wider than 36 inches). If you're drawing your own plan and using online deck calculators, they often shortcut the landing dimension. East Lansing's plan-review checklist explicitly calls this out. Stairs also require handrails if the vertical height is 30 inches or more, and handrails must be 34–38 inches from the stair nosing. Outdoor stairs also need slip-resistant treads (textured surface or grip tape) to pass inspection.

Owner-builder rules in East Lansing are straightforward but have limits. Michigan law allows the owner of an owner-occupied single-family home to pull permits and do the work without a contractor's license. You must be the property owner and live in the home (not a rental or investment property). You cannot subcontract to a licensed contractor and then claim owner-builder status; the law interprets this strictly—either you do the work, or a licensed contractor does and pulls the permit. East Lansing's Building Department will require you to sign an affidavit stating you are the owner-builder, and you must attend all three inspections (footing, framing, final). If you hire a licensed carpenter to frame the deck but pull the permit yourself, you are in violation; the contractor should have pulled the permit. The flip side: if a licensed contractor pulls the permit, they can use owner-builder labor on-site, but the permit is in their name. Most owner-builders in East Lansing work with a single contractor for the full job; the contractor pulls the permit, and the homeowner does some of the finish work (staining, sealing) themselves. Plan 2–3 weeks for the permit application, plan review, and scheduling inspections—add another 4–6 weeks for actual construction (footing curing, framing, inspection cycle, finishing).

East Lansing's online permit portal (managed through the city's planning and zoning office) requires you to upload a site plan, a deck plan, and construction details. For decks under 200 square feet and under 30 inches high, a hand-drawn plan with dimensions and a site sketch may suffice; the plan reviewer will tell you if a stamped design is needed. For decks over 200 square feet or over 30 inches, a licensed architect or engineer's stamp is typically required. The portal also asks for a property-owner affidavit and proof of homeowner's insurance (some inspectors spot-check this during the framing inspection to confirm you have coverage). Plan fees run $200–$400 depending on valuation; valuation is usually 15–20% of the estimated construction cost. So a $15,000 deck incurs a permit fee of $225–$300. Timeline from application to first inspection (footing pre-pour) is 10–15 business days if your plan is clean. If revisions are needed (flashing detail, footing depth, guardrail height, stair landing), add another 5–10 days per revision cycle. Most decks get one revision request; some require two. Budget 3–4 weeks total for the permitting phase before you can break ground.

Three East Lansing deck (attached to house) scenarios

Scenario A
12x16 attached deck, single-story rear corner, 18 inches above grade, no ramp or stairs, owner-builder
You're adding a modest rear deck to a 1980s ranch in Edgemont Hills (south Lansing, glacial-till soil). The deck is 192 square feet, sits on three posts (one at each corner of the 16-foot run, plus a mid-span post), and connects to the house via a 2x12 ledger board bolted to the band board. No stairs (you'll step down 18 inches to the yard). You're planning to do the work yourself over the summer. East Lansing requires a permit because it's an attached deck—even at 18 inches high and under 200 square feet. You'll pull the permit yourself (owner-builder affidavit required), submit a simple hand-drawn site plan (showing lot lines, house footprint, deck location, and property-line setbacks) and a deck plan (showing post locations, footing depths, ledger detail, beam and joist sizing). The ledger detail must show flashing: a 6-inch-wide flexible flashing membrane behind the ledger, then a Z-flashing or L-flashing over the rim joist, lapping over the house wrap. Post footings must go 42 inches deep (below frost line) into concrete pads; you'll dig four holes (one at each post, plus a center footing under the ledger). Excavation through glacial till costs $150–$250 per hole. The plan reviewer will ask: are you using 4x4 posts, and what size beam? Are joist hangers or notched joists? Is the deck ledger bolted every 16 inches per code? Assume one revision request (ledger flashing detail or footing depth); resubmit and get approval in 2–3 weeks. First inspection: footing pre-pour (inspector verifies hole depth, concrete pad size, and frost-line margin). Then frame and bolt the ledger. Second inspection: framing (ledger bolting, post-to-beam connections, joist spacing, guardrail height—even though this deck is low, if it's 18 inches high and you're later adding stairs, the rail will matter). Final inspection: decking surface, bolt tightness, any electrical. Total permit fee: $250–$300 (based on $15,000–$20,000 estimated construction cost). Timeline: 2–3 weeks permits, 3–4 weeks construction (curing concrete footings, framing, nailing decking). Owner-builder labor is free; material and excavation cost $5,000–$8,000.
Permit required (attached deck) | Hand-drawn plan acceptable | Footing depth 42 inches (frost line) | Ledger flashing detail required (Z or L flashing) | Permit fee $250–$300 | 2–3 weeks plan review | Owner-builder allowed (owner-occupied only) | 3–4 posts, 4x4 pressure-treated | Three inspections (footing, framing, final)
Scenario B
10x20 elevated second-story deck with 8-foot drop-off, code-compliance stairs, licensed contractor, stamped plan required
You're adding a second-story deck to a 1990s two-story colonial in the Campus-Hill neighborhood (near MSU, sandy north-Lansing soil). The deck is 200 square feet, sits 8 feet above grade (attached to the rim joist at the second-floor level), and includes a 3-step stair down to a mid-landing, then another 3-step stair down to ground level. You're hiring a licensed contractor. East Lansing requires a permit (attached, elevated, and includes stairs). Because the deck is exactly 200 square feet and elevated 8 feet, the plan reviewer will likely require a stamped architectural or engineer's plan per the city's guidelines (decks over 30 inches high, over 200 sq ft, or with non-standard framing warrant stamp). The contractor will submit a formal site plan, a deck plan showing post locations and footing details, stair calculations (riser and tread dimensions), a guardrail detail (36 inches minimum, 4-inch balusters), and ledger flashing detail. Footing depth is still 42 inches below grade. The sandy soil north of MSU may have a lower bearing capacity (1,500 psf vs 2,000 psf); the engineer will note this and may specify 24-inch-square pads or frost-protected footings deeper than 42 inches if soil testing is needed. The stairs trigger IRC R311.7 compliance: each riser must be 7–7.75 inches (the 8-foot drop is 96 inches; two flights of 6 steps each = 8 risers of 12 inches per riser—too tall, code violation). The engineer will design two flights: top flight 3 steps (7-inch risers, 10-inch treads) to a mid-landing, bottom flight 4 steps (6-inch risers) to ground. The mid-landing must be 36 inches wide by 36 inches deep (or wider if the deck is wider than 36 inches—yours is 10 feet, so landing is 10 feet wide, 36 inches deep minimum). Handrails on both sides of the stairs (34–38 inches from stair nosing). Guardrail around the deck perimeter (36–42 inches, 4-inch balusters). Plan review takes 2–3 weeks; stamped plans are reviewed more carefully (code official cross-checks footing calculations, stair dimensions, guardrail spacing). Expect one revision request (stair landing dimension or guardrail height). First inspection: footings pre-pour (inspector verifies depth, pad size, and bearing capacity verification if soil report was submitted). Second inspection: framing (ledger bolting, post-to-beam connections via steel plates or bolts per IRC R507.9.2, joist hangers, stair stringers, mid-landing supports). Third inspection: decking, handrails, guardrails, stair treads. Permit fee: $350–$450 (based on $25,000–$30,000 construction cost, plus engineering fee $300–$600). Timeline: 2–4 weeks permits (stamped plan review is slower), 4–6 weeks construction. Contractor manages permit and inspections.
Permit required (attached, elevated, with stairs) | Stamped architectural or engineer plan required (deck >200 sq ft or >30 in elevation) | Footing depth 42 inches minimum | Soil bearing capacity may be verified (sandy soil) | Stair design: two flights with mid-landing (36x36 in min) | Guardrail 36–42 inches, 4-inch balusters | Ledger flashing required (Z or L) | Handrails both sides of stairs | Permit fee $350–$450 | Licensed contractor pulls permit | 3–4 weeks plan review | Three inspections (footing, framing, final)
Scenario C
8x12 freestanding deck at ground level, 12 inches above grade, no attachment to house, detached in HOA community
You're adding a small freestanding deck in a residential HOA development (east Lansing, near Aurelius Park). The deck is 96 square feet, 12 inches above grade, sits on four posts with concrete pads, and is detached from the house (no ledger board, no attachment). East Lansing's code technically exempts freestanding decks under 200 square feet and under 30 inches from the permit requirement (IRC R105.2). However, you still need HOA approval before building. The HOA architectural committee will require a site plan and deck design sketch; they'll ask: what color is the decking, what is the post material (pressure-treated PT or cedar), and is it screened or open? HOA review adds 2–4 weeks and may trigger design revisions (e.g., HOA requires cedar posts, not PT). Once you have HOA approval, you can build without a city permit. Footing depth is still 42 inches below grade to avoid frost heave (even though no permit is required, frost damage is real and expensive). Deck height is 12 inches, so no guardrail is required per code (guardrails are only required if the deck is 30 inches or more above grade). However, if the deck is accessible from the house (e.g., you can step from a door or window), some inspectors interpret this as a 'functional deck' and may require a retroactive permit if discovered. To stay safe, check with the city's Building Department before building: call and ask if a freestanding 8x12 deck at 12 inches height, no attachment, requires a permit. Their answer will be definitive. Assume no permit is needed; timeline is HOA approval only (2–4 weeks). Cost: materials ($3,000–$5,000), excavation and concrete for four footings ($200–$400). No permit fees.
No permit required (freestanding, <200 sq ft, <30 in height, no attachment) | HOA approval required (2–4 weeks) | Footing depth 42 inches (frost line) still recommended | PT or cedar posts, pressure-treated | Four concrete pads, 18–24 in diameter | Decking material (pressure-treated lumber or composite) | No guardrail required (height <30 in) | Material cost $3,000–$5,000 | No permit fee | 4–6 weeks total (HOA approval + construction)

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The 42-inch frost line: why East Lansing decks fail in winter

Michigan's climate zone 5A (south Lansing) and 6A (north Lansing) enforce a 42-inch frost-line depth, meaning the soil freezes down 42 inches in winter. If your deck footings are shallower (say, 18 inches—a common DIY mistake), the soil beneath the post will freeze solid, then thaw in spring, causing the footing to heave upward 1–2 inches. Over a season or two, this heave accumulates; the deck shifts, the ledger board tears away from the house, and water infiltrates the rim joist and band board, rotting the structural wood. A full band-board replacement on a colonial can cost $8,000–$15,000. The 42-inch requirement exists for this reason: frost heave is guaranteed to happen if you're above the frost line. East Lansing's code officer will ask to see footing depth on your plan, and if it's less than 42 inches, the plan will be rejected with a note citing IRC R403.1.6.1 or the state's Residential Code amendment. Some homeowners argue that a frostproof footing (a concrete footer that extends below frost and tapers) or a skirt around the post will prevent heave. Neither works reliably; code requires the footing to go below the frost line, and skirts and post sleeves are not accepted as substitutes. Glacial till (the dominant soil around south Lansing) is also harder to excavate than sandy loam; a post hole that would take 30 minutes in Ohio might take 2–3 hours in till. Some contractors use power augers, which cost $100–$200 to rent, or hand-excavation with a post-hole digger. If you hit a boulder (common in till), you may need to move the post location or have the contractor chisel or drill through. Budget 30–60 minutes per hole and $100–$250 in labor or equipment per hole.

The other winter-related issue in East Lansing is snow load. Michigan's residential code requires decks to support a 20-psf roof load (typical) or a 30-psf ground load (if the deck can collect snow drifting from the roof). A small attached deck is unlikely to trigger roof-load calculations, but if your deck is under a sloped roof or within 10 feet of a roof edge, the code officer may ask: is the deck designed for 30-psf ground load? Most deck designs default to 40-psf (residential deck design load), which covers snow and live load. The plan reviewer will not ask you to recalculate if you're within the standard 40-psf assumption; this is only an issue if your deck is unusually large (over 600 sq ft) or is meant to be a snow-dumping zone (e.g., a roof over a patio). For a typical 10x16 attached deck, snow load is not a separate concern—it's bundled into the joist and beam sizing.

Ledger flashing is THE critical detail because water infiltration is the number-one cause of deck-induced rot in the house. IRC R507.9 requires a continuous flashing membrane between the deck ledger and the house band board. The detail must show: (1) a flexible membrane (typically ice-and-water shield or equivalent) installed behind the ledger, extending up the rim joist at least 8 inches and down at least 4 inches; (2) an L-flashing or Z-flashing over the rim joist, lapping over the house wrap and extending down the exterior wall at least 4 inches; (3) all fasteners (bolts) sealed with caulk or gasket washers to prevent water from wicking along the bolt hole. Many homeowners and even some contractors think caulk alone is sufficient; it is not. Caulk fails after 3–5 years from UV exposure and movement. East Lansing's code officer will red-line any plan that shows caulk as the primary flashing. The correct detail is: ice-and-water shield behind, L-flashing or Z-flashing over, and caulk as a secondary sealant. This detail must be shown in a cross-section view on your plan (a 1:4 or 1:8 scale detail drawing showing the ledger, rim joist, house wrap, and flashing). If your plan lacks this detail, it will be rejected. If your framing inspection shows the flashing installed incorrectly (e.g., the L-flashing is upside down, trapping water), the inspector will fail the inspection and require you to remove the ledger and reinstall it correctly. This is not a minor point; East Lansing takes ledger flashing seriously because rot claims are expensive and common in Michigan decks.

Owner-builder vs. licensed contractor: when you need to hire out and when you can DIY in East Lansing

Michigan law and East Lansing's code allow a homeowner to pull a permit and perform work on their own owner-occupied single-family home without a contractor's license. This is called owner-builder status, and it's governed by Michigan Public Act 188 and the state Residential Code. The key requirement is that you are the legal owner of the property and that it is your primary residence. If you own a rental unit or an investment property, you cannot claim owner-builder status; you must hire a licensed contractor and they pull the permit. If you live in a condo or townhome (even if you own it), the HOA or property-management company may prohibit owner-builder work, or may require that work be done by a licensed contractor. Check your HOA docs before committing. If you're the owner-builder, you can hire subs for specific tasks (e.g., an electrician for a deck-mounted light, a foundation contractor for footing excavation), but you cannot hire a general contractor to frame the deck and then claim owner-builder status. The GC should pull the permit if they're doing the main work. East Lansing's Building Department will ask you to sign an affidavit stating you are the owner-builder and that you will perform or directly supervise all work. You must attend all three inspections (footing pre-pour, framing, final). If the inspector shows up and you're not there, or if you have a contractor on-site doing all the work while you're absent, the inspector may note this and the permit could be revoked.

The advantage of owner-builder is cost: you save the contractor markup (typically 15–30% of material cost) and the contractor's license fee (built into their overhead). For a $15,000 deck, that's a $2,000–$4,500 savings. The disadvantage is liability and timeline. If the deck fails (a guardrail gives way, a post heaves, the ledger rots), you are personally liable for injuries and property damage. A licensed contractor carries liability insurance; if a contractor's work fails, the homeowner can make a claim against the contractor's insurance. An owner-builder has no such recourse. Also, owner-builders often underestimate the time and complexity of permit paperwork, plan drawing, and inspection scheduling. Many owner-builders take twice as long as a professional contractor because they're working weekends and juggling work and family. For a small deck (8x12), owner-builder makes sense. For a large, complex deck with stairs and electrical, hiring a licensed contractor is smarter.

East Lansing's contractor-licensing requirement applies to decks if the project cost exceeds $2,500 (Michigan state threshold for contractor licensure). In practice, nearly all deck projects exceed $2,500; a simple 10x12 deck is $8,000–$12,000. So if you hire someone to build your deck and they're not a licensed contractor, East Lansing code will object and may issue a stop-work order. To avoid this, hire a contractor licensed by the Michigan Department of Licensing and Regulatory Affairs (LARA), and verify their license on the LARA website before signing a contract. A licensed contractor must carry liability insurance and maintain a performance bond or license bond. If a contractor's work is faulty, you can file a complaint with LARA and potentially recover damages from the license bond.

City of East Lansing Planning and Zoning / Building Permits Division
410 Abbot Road, East Lansing, MI 48823 (main city hall; confirm building permit office location with city)
Phone: (517) 319-6900 or (517) 319-6930 (verify permit office direct line with city) | https://www.cityofeastlansing.com (navigate to Building Permits or Planning & Zoning; some permit applications via earlypermits.com or city's internal portal—confirm with department)
Monday–Friday, 8:00 AM – 5:00 PM (typical; confirm holiday closures)

Common questions

Can I build a deck without a permit if it's freestanding and under 200 square feet?

No—if the deck is attached to the house, it requires a permit regardless of size. Freestanding decks under 200 square feet and under 30 inches above grade are exempt under Michigan Residential Code. However, even exempt decks must meet footing depth requirements (42 inches in East Lansing frost zone) to avoid frost heave. And if you live in an HOA community, you still need HOA architectural approval before building. Verify with East Lansing Building Department before starting; a retroactive permit is expensive.

What's the frost line in East Lansing, and why does it matter?

The frost line in East Lansing and Ingham County is 42 inches below grade (some northern areas approach 48 inches). Below this depth, the soil does not freeze in winter. If your deck footings are shallower than 42 inches, the soil will freeze and thaw seasonally, causing frost heave—the post will shift upward 1–2 inches per year, tearing the ledger board from the house and causing rim-joist rot. Frost-heave repair (band board replacement) costs $8,000–$15,000. East Lansing's code officer will reject any plan showing footings shallower than 42 inches. This is non-negotiable.

Do I need a stamped engineer's plan for my deck?

For decks over 200 square feet, over 30 inches high, or with non-standard framing (e.g., a cantilever or steep stairs), East Lansing's code officer will likely require a stamped plan by a licensed architect or engineer. For small decks (under 200 sq ft, under 30 inches), a hand-drawn plan with dimensions and a site sketch may suffice. The plan reviewer will tell you if a stamp is needed during the review; don't assume. Stamped plans cost $300–$600 from an engineer but speed up approval and reduce revision requests.

How deep should my deck posts be, and what type of concrete is required?

Deck posts must rest on concrete pads or be set into holes dug 42 inches below grade (below the frost line). The concrete pad should be at least 18–24 inches wide and 12–18 inches thick (or as sized by an engineer if bearing capacity is an issue). Use standard concrete mix (3,000 psi); no special frost-protection concrete is required. The post should sit on top of the concrete pad (not buried in concrete), with a post base or metal footing bracket to prevent rot. If digging in glacial till, expect to spend 1–3 hours per hole; sandy soil (north Lansing) is faster.

What is a ledger-board flashing, and why is East Lansing so strict about it?

A ledger board is the rim joist of the deck that bolts to the house band board. Water infiltration at this junction is the leading cause of rot in Michigan decks. The flashing detail must show: (1) ice-and-water shield or flexible membrane behind the ledger, (2) an L-flashing or Z-flashing over the rim joist extending down the exterior, and (3) caulked bolt holes. East Lansing's code officer will red-line plans that rely on caulk alone. Incorrect installation (upside-down flashing, flashing that traps water) will fail the framing inspection, requiring you to remove the ledger and reinstall it—a costly delay. Get this detail right on the plan, and check the framing inspection carefully.

Can I pull a permit myself, or do I need to hire a contractor?

Michigan law allows owner-builders (homeowners on owner-occupied single-family homes) to pull permits and do the work themselves. You must be the legal owner and reside in the home. You'll sign an affidavit and attend all three inspections (footing, framing, final). Hiring a licensed contractor is safer (they carry liability insurance) and often faster, but costs more (15–30% contractor markup). For a small 8x12 deck, owner-builder is feasible; for a complex 10x20 deck with stairs, hiring a contractor is recommended. Verify owner-builder eligibility with East Lansing Building Department before pulling the permit.

What are the guardrail and stair requirements for my deck?

Guardrails are required if the deck is 30 inches or more above grade. The rail must be 36 inches minimum from the deck surface to the top rail (some inspectors in Michigan enforce 42 inches). Balusters must be spaced no more than 4 inches apart (a 6-inch sphere cannot pass through). Stairs require handrails if the vertical height is 30 inches or more; handrails must be 34–38 inches from the stair nosing. Stair risers must be 7–7.75 inches tall (not more, not less), treads 10 inches minimum depth, and a landing (36x36 inches minimum) at top and bottom. East Lansing's plan reviewer will check all of these; undersized landings or incorrect riser heights are common rejections.

How much does a deck permit cost in East Lansing?

Deck permit fees typically range from $200–$450 depending on the estimated construction cost. The city bases the permit fee on a percentage of valuation (usually 1.5–2%); a $15,000 deck incurs a $225–$300 fee, a $25,000 deck incurs a $375–$450 fee. If you need a stamped engineer's plan, add $300–$600 for the engineer's work (separate from the city permit fee). If the city requires a soils report (for large or tall decks or sandy soil), add $150–$400. Budget an additional $500–$1,000 for plan revisions if the first submission is incomplete.

What is the timeline from permit application to building my deck?

Plan review typically takes 10–15 business days if your plan is complete and correct. If revisions are needed (most common: ledger flashing detail, footing depth, stair landing), add 5–10 days per revision. Count on 2–4 weeks total from application to approval. Once approved, you can schedule the footing pre-pour inspection, then frame the deck, then schedule the framing and final inspections. Construction typically takes 3–6 weeks depending on size and complexity (concrete curing time, framing, decking). Owner-builders often take longer because they work part-time. Total timeline: 5–10 weeks from permit application to finished deck. Licensed contractors are faster (4–8 weeks) because they coordinate inspections tightly and work full-time.

What happens at the three inspections, and what do I need to have ready?

Footing Pre-Pour Inspection: The inspector verifies that post holes are dug 42 inches deep (below frost line), concrete pads are sized correctly, and the footing is ready for concrete. Bring a tape measure and the approved plan. Framing Inspection: The inspector verifies ledger bolting (every 16 inches per code), post-to-beam connections, joist spacing and hangers, guardrail height (36–42 inches), stair dimensions (riser, tread, landing), and flashing installation. Bring the approved plan and point out the ledger flashing in detail. Final Inspection: The inspector checks decking surface, bolt tightness, handrail and guardrail solidity (they'll tug on the rail to verify it's secure), stair tread condition, and any electrical fixtures (if wired). If all three inspections pass, you receive a Certificate of Occupancy (or sign-off on the permit). If any inspection fails, the inspector will issue a correction list; you fix the issues and call for a re-inspection.

Disclaimer: This guide is based on research conducted in May 2026 using publicly available sources. Always verify current deck (attached to house) permit requirements with the City of East Lansing Building Department before starting your project.

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