Euclid HL · Your trusted planning and zoning assistant

Real questions.
Cited answers.

Communities across North America answer their planning and zoning questions with Euclid HL — every day, around the clock, grounded in their adopted code, cited to the section, linked to the map.

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Live in Cornwall, Ontario

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Providing immediate and accurate answers with text, figures, and GIS mapping and data, Euclid HL is the local expertise you are looking for.

euclidhl.ca/on/cornwall
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CornwallONTARIO · CANADA
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Euclid HL
Hi, I'm Euclid HL for Cornwall, your planning and zoning assistant.
How high can I build in the General Commercial zone?
Euclid HL
In the General Commercial (GC) zone, the maximum building height is 13.5 m — roughly four storeys. Setbacks step up where a lot abuts a Residential Zone.
§11.2 GC Zone standardsZone: General Commercial
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Cornwall Zoning — City
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The answer

Every question is answered
from the source.

Zoning, comprehensive plans, form-based codes, process and procedure requirements - grounded in each community's adopted documents, cited to the governing section of the code, linked to the parcel on the map. And when a diagram answers better than text, the relevant diagrams and images are included.

CCCañon City, ColoradoZoning
"I have property at 923 Main Street. Can I open a restaurant here?"
Yes — if your parcel is in the GC, General Commercial district, a sit-down restaurant is permitted by right (the use table lists it as Permitted in the GC, NC, and CB districts). You'll still need a building permit for tenant improvements and a county retail food license.
§19.10.080 Allowable usesGC General CommercialCañon City UDC, Title 19
BUBurbank, CaliforniaADU
"Can I build an ADU behind my house?"
Yes — a detached ADU is capped at 850 sq ft (one bedroom) with a 4-ft rear and side setback. ADUs are also exempt from the usual FAR, lot-coverage and open-space limits, and no extra parking is required when the lot is near transit.
Burbank Zoning · Ch.1 Div.3 (ADUs)Gov. Code §66314
CWCornwall, OntarioBy-law
"How tall can my fence be on a corner lot?"
Fence height itself is set by the City's Fence By-law — but on a corner lot the Zoning By-law adds the rule that matters most: a 6 m sight triangle must be kept clear at the intersection so sightlines stay open. Here's that diagram. (And where a yard abuts a Residential Zone, a 1.86 m screening fence is required.)
Street A Street B Corner lot sight triangle 6 m 6 m
Figure returned with the answer · 6 m sight triangle
Zoning By-law 2022-001§15.3.7 ScreeningSight triangle · 6 m
CHChattanooga, TennesseeSTR
"Can I rent my house out short-term?"
It depends on the overlay. An owner-occupied or homestay short-term rental is allowed wherever residential uses are permitted inside the Short-Term Vacation Rental Overlay District (plus certain commercial zones) — so the first question is whether your parcel falls within that overlay. Here's the overlay map.
§38-84 Permissions§38-86 Location & numberSTR Overlay District
SASanta Ana, CaliforniaParking
"What's the parking requirement for a 12-unit apartment building?"
For a multiple-family dwelling, the base requirement is one covered space per unit (garage or carport) plus one space for each bedroom on the site — and state density-bonus law can reduce that if the project includes affordable units. Want me to walk through the scenarios?
SAMC §41-1322 Multiple-familyGov. Code §65915
FTFerguson Township, PennsylvaniaAccessory
"Can I put a shed in my side yard?"
A shed is allowed, but it has to stay out of your required yard setbacks: under §27-209 no structure may sit in a required front, side, or rear yard, and §27-207 ties accessory structures to your district's standards. Want it closer to the line than that allows? That's a variance from the Zoning Hearing Board — here's what that involves.
§27-207 Accessory structures§27-209 Yard requirementsPart 10 · Zoning Hearing Board
MCMadera County, CaliforniaComp Plan
"My parcel is zoned RR, but the General Plan map shows Commercial. Which one wins?"
Today, the RR zoning governs what you can build. The General Plan's land use map expresses the County's long-range intent — and the zoning ordinance has a process for resolving exactly this kind of conflict. A rezone to match the map would be evaluated for consistency. Here's what that application involves, and the policies your request would be weighed against.
Zoning §18.06.070 Conflicting usesGeneral Plan · Land Use (Goal 1.A)Rezone / GP amend §18.108.200
TCTemple City, CaliforniaMixed-Use
"What can I build on my Las Tunas Drive frontage?"
Your parcel is in a Mixed-Use district on the Las Tunas corridor, which encourages ground-floor commercial with residential above. Within 100 ft of Las Tunas Drive, building height is capped at 56 ft — about 4 storeys (it steps up further back). The development standards live in the mixed-use standards table.
sidewalk · Las Tunas Dr residential above ground-floor commercial 56 ft · 4 storeys
Figure returned with the answer · 56 ft height limit near Las Tunas Dr
§9-1H-3 Mixed-Use standards§9-1H-1 MU designationHeight: 56 ft near Las Tunas
SWSouth Whitehall Township, PennsylvaniaProcess
"How do I apply for a variance, and what does the Board look for?"
Variances go to the Zoning Hearing Board. You file an application with public notice to neighbors and the Zoning Officer, and the Board weighs whether the ordinance imposes an "unnecessary hardship" before granting relief. I can walk you through the checklist for your parcel and the Board's published hearing schedule.
§350-16 Zoning Hearing Board§350-16(c) Variances§350-16(e) Notice
Conversations are illustrative of production behavior; answers in deployment are grounded in each community's adopted code and reviewed FAQ.
The Living Data Layer

Complex regulations
made understandable.

Watch a passive document come alive. This is what living data actually means — the code and plan stop being PDFs and become a living layer: annotated, interpreted, cited, and bound to the map.

01 — THE DOCUMENT

It starts as adopted law.

Chapter 19.10, General Commercial. A regulation like ten thousand others — adopted, amended, applied for decades, and easily understood only by the people within the profession.

02 — THE INTERPRETATION

Staff knowledge becomes part of the record.

The way your senior planner actually applies this section — the annotations, the team standards, the drafting notes — is captured on the provision itself. When she retires, it stays.

03 — THE ANSWER

Every question is answered from the source.

A resident asks about a restaurant. Euclid HL answers from the adopted code and plan — in plain language, cited to the section, with the confidence to say "this one needs staff review" when it does.

04 — THE PARCEL

And the regulation is mapped to the parcel.

The provision is bound to the parcels it governs. Ask about an address and the answer arrives with the zoning, the overlays, and the parcel highlighted — law and geography, finally in the same place.

Cañon City Code — Title 19 · ZoningUnified Development Code · GC District

Chapter 19.10 — GC General Commercial District

GC District — Intent. The GC, General Commercial district accommodates a wide range of commercial uses, including national retailers in large-format stores, along the city's primary corridors.

19.10.080 — Allowable uses. The use table lists the following as permitted by right in the GC district: retail stores; personal service establishments; restaurant, sit down; offices; financial institutions; hotels and motels.

19.10 — Dimensional standards. Building height, setbacks, and lot requirements follow the GC district's bulk-and-dimensional table.

Planning Staff · Team standard
Outdoor dining near a residential boundary still requires the landscape buffer where the GC district abuts a residential zone — applies even when accessory. Confirmed during staff review.
923 Main
"Can I open a restaurant at 923 Main Street?"
Yes — a sit-down restaurant is permitted by right in the GC district. Note: if you're planning outdoor dining near the rear lot line, a landscape buffer applies.
§19.10.080Landscape bufferGC District
Capabilities

A platform, not a chatbot.

The conversational layer is the front door. Behind it, Euclid HL is building the institutional memory of how your city plans and governs itself.

Grounded answers, real citations

Every response traces to the adopted code section that governs it. Residents see the source, not a summary of one.

🗺

Parcel-linked, map-native

Ask about an address, see the parcel. Zoning, planning designation, overlays, and boundaries rendered live alongside the conversation.

🖼

Returns the diagram, not just the text

Setback figures, build-to illustrations, encroachment graphics, special area plans and renderings — included when a picture answers the question better.

🧵

Integrate policy and regulations

Planning policy and zoning regulations are related, but very different. Euclid HL knows the difference and accurately answers questions about both.

🏛

Institutional memory, built in

Staff interpretations and annotations accrue in the platform. When a senior planner retires, the knowledge stays.

📍

Place intelligence from city to neighborhood

Track what issues are neighborhood specific or common city-wide. Euclid HL helps you know what is most important where, allowing you to take action.

Before / after

Same question.
Two very different experiences.

The old way — Monday, 8:54 AM
  • Resident joins the phone queue behind eleven other callers with "just a quick question."
  • Staff opens a 400-page PDF, searches "fence," gets 73 hits across four chapters and two amendments.
  • The answer depends on a 2019 interpretation that lives in a retired planner's head.
  • Forty minutes later: "You should probably come into the office."
The Euclid HL Way — Monday, 12:03 AM
  • Resident asks Euclid HL from the couch. Answer in nine seconds — cited to the section, parcel on the map.
  • The 2019 interpretation is annotated on the provision itself — institutional memory, built in.
  • The sight-triangle diagram comes back with the text, because a picture answers it better.
  • Staff arrives Monday to zero "quick questions" — and a morning for real planning work.
How it works

Deploy in weeks, not months.

01 / INGEST

Your documents, in

Zoning code, comp plan, subdivision regs, FAQs — ingested, linked to parcels, figures preserved. Your documents do the heavy lifting.

02 / GROUND

Answers with receipts

Every response is grounded in adopted law and cited to the section. When a question needs staff judgment, Euclid HL says so and routes it.

03 / COMPOUND

It gets smarter as you use it

Staff annotations and interpretations accrue on the code itself. The platform becomes your institution's memory — and it never retires.

Ready when your community needs it!

Deployment takes weeks, not months — your adopted documents do the heavy lifting. Your community could be live before the next council meeting cycle.

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