
Northglenn is unusual among Denver suburbs in that it was not a town that grew. It was a single master-planned community, built at once, and that origin still explains most of what a contractor finds behind the walls here — and why the permit path works differently than in the cities around it.
Who Actually Issues Your Permit
Northglenn is a home-rule city sitting entirely inside Adams County, but its building division is not staffed the way most cities’ are. Northglenn contracts building department services to SAFEbuilt, a third-party provider, which handles plan review and inspections on the city’s behalf. Applications and permits run through the CommunityCore portal, and the division can be reached at [email protected] or 303-450-8745.
Practically, this means two things. First, the process is real permitting with real inspections — contracting the function out does not make it lighter. Second, communication is more procedural than in a small in-house department where you get the same plans examiner every time. Complete submittals matter more here, because an incomplete one comes back through a queue rather than getting sorted out over a counter.
Note also that Adams County’s building department has no jurisdiction inside Northglenn city limits. It covers unincorporated Adams County. Your parcel is in Adams County for tax and assessor purposes; your permit is a Northglenn permit.
The Code Question Worth Asking Before You Sign Anything
The residential code adopted in Northglenn’s municipal code has been the 2018 International Residential Code, which has run behind neighboring cities — Westminster moved to the 2021 I-Codes in 2024, and Arvada is on the 2024 family. The city has had a scheduled move to the full 2024 ICC suite, and to the 2026 National Electrical Code following state adoption.
Because that transition has been in motion, the honest answer is that the adopted edition is a thing to confirm at application rather than assume from a contractor’s habit. We confirm the currently adopted edition with the building division on every Northglenn project before pricing electrical and energy scope, and you should expect any contractor bidding your job to do the same. A bid priced to the wrong code cycle is not a small error — the differences land in circuit protection, insulation values, and mechanical requirements, all of which are money.
Built in One Go, Starting in 1959
Northglenn began in 1959 as a master-planned community developed by Jordon Perlmutter, with the first five model homes opening on June 30, 1959 near I-25 and 104th Avenue. The community was built out as a planned whole rather than accreting subdivision by subdivision over decades, and it did not incorporate as a city until April 18, 1969 — a full decade after the houses went up.
That history is the single most useful thing to know about a Northglenn house, because it means the original housing stock is tightly clustered in one construction era rather than spread across fifty years. When houses are built in one push by one developer, they share plan types, framing details, materials and equipment choices — and they share the same set of problems on the same schedule.
What That Means When We Open a Wall
The original stock sits on the wrong side of 1978, which puts it squarely inside the EPA’s Renovation, Repair and Painting rule. Disturbing painted surfaces in pre-1978 housing requires a certified firm, contained work areas and verified cleanup. This is federal, not optional, and it is not a formality — on a house of this vintage the paint layers underneath the current color are usually old.
Asbestos runs on the same timeline. Popcorn ceilings, sheet vinyl and its mastic, duct wrap, and period joint compound all commonly test positive in Colorado houses of that era. CDPHE Regulation 8 sets the thresholds at which abatement becomes mandatory. We test before demolition rather than after, because finding it after means the job stops and the schedule and price both move.
Beyond the hazards, the recurring list on original Northglenn houses is a list of things at the end of a long service life: electrical panels sized for 1960s household loads rather than a modern kitchen and a home office, original galvanized or early copper supply lines, sewer laterals with root intrusion, single-pane or first-generation replacement windows, and HVAC ductwork that has been through two or three equipment swaps without ever being rebalanced. Compartmentalized floor plans — small closed kitchens, formal dining rooms — are the other constant, and opening them up is a large share of the work we do here.
Water, Soil and Radon
Northglenn’s municipal water comes from Standley Lake, the reservoir that supplies Westminster, Northglenn and Thornton. The reservoir itself sits inside Westminster’s city limits, not Northglenn’s — a detail worth getting right, because it means questions about the reservoir and its watershed go to a different jurisdiction than your permit does.
On soil: the Colorado Geological Survey identifies expansive soil as the state’s most damaging geologic hazard, with swelling bentonite and montmorillonite clays in the Pierre Shale and related Front Range formations underlying roughly a third of Colorado homes. This is a regional condition, and Northglenn sits in that landscape like the rest of the north metro. In a house it shows up as seasonal slab movement: a basement drywall crack that reopens every spring in the same place is the slab telling you something, not the taper’s fault. Basement framing should float, with a deliberate gap at the top of the wall, so slab movement does not transfer into the structure.
Adams County is in EPA Radon Zone 1, the highest zone, predicted indoor average above 4 pCi/L. Test before finishing a basement. Sub-slab depressurization installed while the slab is exposed is inexpensive; retrofitting it into a finished basement is not.
Hail and the Roof
Northglenn sits in the Front Range hail corridor, where roofing is as much an insurance process as a construction one. Two things consistently help homeowners: document roof condition before storm season rather than after, and understand that supplements for code-required items — ice and water shield, drip edge, ventilation brought current — are a normal part of a legitimate claim, not an upsell. A roofing bid that quietly omits code items to come in under a competitor is deferring a change order, not saving you money.
How We Run a Project Here
We confirm the adopted code edition with the building division before we price electrical and energy scope, rather than pricing from last year’s assumption. We pull permits in our name, not yours — a permit issued to a homeowner shifts liability onto the homeowner, which is one of the quiet reasons a cheap bid is cheap. We test for lead and asbestos before demolition on any pre-1978 house, which in Northglenn means most of them. And we open a wall or a ceiling cavity before committing to a price on anything whose cost depends on what is inside it.
Services We Provide in Northglenn
All work below is permitted and inspected under the authority with jurisdiction over Northglenn.
- Kitchen Remodeling in NorthglennLayouts, cabinets, counters, full gut rebuilds
- Bathroom Remodeling in NorthglennPrimary baths, guest baths, wet-area rebuilds
- Basement Finishing in NorthglennEgress, ceiling height, permits, finished space
- Home Additions in NorthglennBump-outs, second stories, whole-room additions
- Roofing in NorthglennReplacement, storm damage, Class 4 options
- Deck Building in NorthglennComposite and wood decks, rails, structural repair
- Fencing in NorthglennWood, composite and metal fence installation
- Framing in NorthglennStructural framing, walls, load-bearing changes
- Drywall in NorthglennHang, tape, texture, repair and patching
- Tile Work in NorthglennFloors, showers, backsplashes, waterproofing
- Painting in NorthglennInterior and exterior, prep and finish work
- Demolition in NorthglennSelective interior demo and full teardowns
Nearby in Adams County
We work throughout Adams County. Nearby communities:
Common Questions
Does Adams County issue my Northglenn permit?
No. If the property is inside Northglenn city limits, the permit is a City of Northglenn permit, administered by SAFEbuilt on the city’s behalf through the CommunityCore portal. Adams County’s building department handles unincorporated county land only. The county still appears on your assessor and tax records.
Which building code will my remodel be reviewed under?
Northglenn’s adopted residential code has been the 2018 IRC, with a scheduled move to the 2024 ICC suite and to the 2026 NEC following state adoption. Because that transition has been underway, the adopted edition should be confirmed with the building division at application — we do this on every project before finalizing electrical and insulation scope.
Why does my house have the same problems as my neighbor’s?
Because it probably has the same builder, the same plan and the same age. Northglenn was built as one master-planned community starting in 1959, so original houses share framing details, materials and equipment vintages. When one house on a block needs a panel upgrade or a sewer lateral, the others usually are not far behind.
Do I need lead-safe work practices on a Northglenn remodel?
On the original housing stock, yes. Those houses predate 1978, so the EPA’s Renovation, Repair and Painting rule applies to any work disturbing painted surfaces — certified firm, contained work area, verified cleanup. Asbestos testing before demolition belongs in the same conversation.
Should I test for radon before finishing my basement?
Yes. Adams County is EPA Radon Zone 1. Installing mitigation while the slab is exposed and the walls are open is straightforward; adding it to a finished basement means undoing finished work.
Talk to Us About Your Project
If you are planning work in Northglenn, we will walk the house, confirm the current permit and code path with the building division, and give you a range with the reasoning attached rather than a number that only survives if nothing surprising is behind the drywall. Northglenn sits in Adams County, and we work throughout the Denver metro and the Front Range.