CEN-2 Zoning in Downtown Dartmouth: How FAR and Height Limits Actually Work

If you own land in Downtown Dartmouth zoned CEN-2 (Centre 2), the two questions that decide your project are simpler than the jargon suggests: how much floor area can the parcel hold, and how tall can the building go? In Halifax's Regional Centre, those two answers are set by two different controls — Floor Area Ratio (FAR) and maximum building height — and they do not move together. Understanding how they interact is the difference between a development envelope you can finance and a design that gets stopped at the development-permit counter.

This is a feasibility question, not a marketing one. At Helio — a computation-driven real estate development company based in Halifax — we start every parcel by reading the controlling by-law as it is actually written, then computing the largest compliant building the lot can support. This article walks through how CEN-2's FAR and height rules work, where the common online figures go wrong, and how to find the numbers that actually apply to your lot.

The most important correction first: there is no single CEN-2 number

A lot of online content quotes a tidy pair of numbers for Downtown Dartmouth — "FAR up to 8.0," "33 storeys," or "a 90-metre cap." Treat all three with suspicion.

In Halifax's Regional Centre, CEN and higher-order residential zone maxima are set per-precinct in the Regional Centre Land Use By-law (RC LUB) and the Centre Plan's height precinct maps — there is no single municipality-wide CEN-2 height or FAR figure [1]. Two adjacent CEN-2 lots can carry materially different height and FAR maxima because they fall in different precincts. The authoritative, parcel-specific values come from the RC LUB built-form schedules and HRM's ExploreHRM mapping tool — not from a blog's headline number [1].

So the honest framing for a CEN-2 parcel is: the controls exist and are knowable, but they are read off the by-law for your specific precinct. Any article that hands you one universal FAR or one universal storey count for "Downtown Dartmouth CEN-2" is, at best, oversimplifying — and at worst, quoting a figure that doesn't apply to your land.

With that guardrail in place, here is what the two controls each do.

Floor Area Ratio (FAR): how much you can build

Floor Area Ratio is the ratio of total building floor area to lot area. A FAR of 3.0 on a 1,000 m² lot permits roughly 3,000 m² of floor area, distributed however the by-law's other rules allow. In the Regional Centre, FAR is one of the primary built-form controls in the CEN zones, alongside height [1].

What FAR gives a developer is distribution flexibility. Within your permitted floor-area budget, you can choose how to spread it: larger floor plates over fewer storeys, or smaller plates over more. That flexibility is where good feasibility work earns its keep. On a constrained urban lot — setbacks on three sides, a heritage neighbour, an awkward shape — FAR lets you shift density to the parts of the parcel that can carry it, rather than forcing a uniform box.

A few things FAR does not do:

• It is not a height permission. You can exhaust your FAR well before you reach your height limit, or hit your height limit with FAR to spare. The binding constraint is whichever one you reach first.
• It is not the only floor-area control. Setbacks, stepbacks, lot coverage, minimum frontage, and angular-plane rules in the RC LUB all shrink the practically buildable area below the theoretical FAR maximum [1].
• It is not a guarantee of unit count. FAR governs floor area; how many units that area yields depends on your unit mix, which the market — not the by-law — should drive.

The practical takeaway: FAR sets your floor-area budget, and the rest of the by-law tells you how much of it you can actually realize on the ground.

Height limits: how tall you can build

The Regional Centre's second master control is maximum building height. In the CEN zones this is precinct-specific and, in many downtown and corridor precincts, regulated in tandem with FAR rather than as a flat number [1]. The Centre Plan layers additional height protections on top: viewplanes (protected sightlines to the harbour and key landmarks) and ramparts (height limits that protect Citadel Hill's setting), both of which can pull a permitted height below the base precinct maximum on affected parcels [2].

Height limits exist to serve the Centre Plan's design objectives — human-scale design and transitions between higher- and lower-intensity areas. That is why taller forms in the Regional Centre are typically required to step back from the street wall and from lower-rise neighbours, rather than rising as a uniform tower from the lot line [2]. The Centre Plan also allows certain minor elements — rooftop mechanical, and features such as solar panels — to extend modestly above the height limit, which preserves design flexibility without breaching the cap's intent [2].

The consequence for design is that height is usually the harder constraint to negotiate than FAR. FAR you can redistribute. A precinct height limit, a viewplane, or a rampart is a hard line: exceeding it generally requires a Land Use By-law amendment or development agreement through Regional Council, not a development officer's variance — a longer, discretionary, and far-from-certain path [3].

FAR vs. height: which one binds your parcel?

Here is the core of CEN-2 feasibility. Both controls apply at once; your buildable envelope is the smaller of the two. Three cases:

Situation	What's binding	What it means for design
Generous FAR, tight precinct height (e.g., near a viewplane or rampart)	Height	You can't go up, so floor area has to spread out — bigger footprint, more pressure on setbacks and lot coverage.
Tall precinct height, lower FAR	FAR	You'll exhaust your floor-area budget before you reach the height limit — a slender or partial-height form, not a full tower.
Both close together	Either, depending on lot shape	The art is in the massing — fitting the floor-area budget under the height line while respecting stepbacks and frontage.

This is why a single "CEN-2 number" is useless for real decisions. The same FAR on a narrow lot and a wide lot produces completely different buildings once setbacks, frontage minimums, and lot coverage are applied. Narrow lots tend to be FAR-driven — the value is in stacking floor area efficiently. Wider lots often run into the height and stepback rules first, where the design problem is fitting a compliant form into the precinct's intended scale [1].

As-of-right vs. variance vs. amendment (as of 2026-06-23)

Knowing your envelope is only half the work; the other half is knowing how you're permitted to build it.

• As-of-right. If your design complies with every applicable RC LUB standard — FAR, height, setbacks, coverage, frontage — it can proceed by development permit, with no discretionary approval. This is the fastest, most predictable path [3].
• Variance. A minor relaxation of a specific standard (for example, a small setback or lot-coverage adjustment) can be granted by the development officer under the Halifax Regional Municipality Charter. Variances are narrow by design — they are not a route to extra height or extra FAR [3].
• Development agreement / rezoning. Larger departures — exceeding the precinct height, encroaching on a viewplane, or seeking density beyond the by-law — require a development agreement or rezoning approved by Regional Council, a public, discretionary, multi-month process with no guaranteed outcome [3].

The cost-and-timeline difference between these paths is enormous. A scheme designed to the as-of-right envelope from day one avoids the amendment process entirely. That is precisely why the first move on any CEN-2 parcel should be to compute the maximum compliant building — and then design within it, only pursuing discretionary approvals where the upside clearly justifies the risk.

How the rest of HRM's framework affects a CEN-2 project

Zoning sets the envelope, but a few other current rules shape the economics of a Downtown Dartmouth rental project:

• Building code path. A building of 3 storeys or fewer with a building area of 600 m² or less (and an eligible occupancy) can use the simpler Part 9 path of the National Building Code as adopted in Nova Scotia; anything larger is a Part 3 building, with more demanding structural, fire, and accessibility requirements [4]. CEN-2 forms frequently cross that threshold — a real cost input, not a footnote.
• HST and rental rebates. Nova Scotia's HST rate is 14% as of April 1, 2025 [5]. Long-term residential rent is an HST-exempt supply, so a landlord charges no HST on rent (and claims no input tax credits) [6]. Qualifying new purpose-built rental can recover the GST/HST through the federal and provincial Purpose-Built Rental Housing rebates — up to 100% of both the 5% federal part (max $35,000/unit) and the 9% provincial part [7].
• Servicing charges. Halifax Water's Regional Development Charge for a multiple-unit dwelling is $5,405.81 per unit, effective April 1, 2024 [8].
• Rent cap. Nova Scotia's temporary rent cap limits annual increases for existing tenancies to 5% and is scheduled to run through December 31, 2027 [9]. It applies to existing tenancies, not first-lease rents on new units — relevant to how you underwrite future revenue.

None of these change your CEN-2 envelope, but all of them belong in the same feasibility model, because the building you can permit and the building you should develop are not always the same one.

How a development firm reads a CEN-2 parcel

When Helio evaluates a Downtown Dartmouth site, the sequence is deliberate:

1. Confirm the precinct. Pull the parcel's CEN-2 precinct from the RC LUB and ExploreHRM, and read its specific height and FAR maxima — plus any viewplane or rampart overlay [1][2].
2. Compute the compliant envelope. Apply FAR, height, setbacks, stepbacks, lot coverage, and frontage together to find the largest building the lot supports as-of-right.
3. Test massing against the market. Translate that envelope into realistic unit mixes and check it against the building-code path, servicing charges, the HST/rebate position, and rental economics.
4. Decide the approval path. Confirm the design is as-of-right — or quantify exactly what a variance or amendment would add, and whether the discretionary risk is worth it.

We don't publish a price for that work here, and we don't quote a universal CEN-2 number, because neither would be honest. What we do is read the by-law as written and compute the answer for the specific parcel in front of us.

FAQs

Is there really no fixed FAR or height for CEN-2 in Downtown Dartmouth?

Correct. In the Regional Centre, CEN-zone height and FAR maxima are set per-precinct in the Regional Centre Land Use By-law and the Centre Plan height-precinct maps — there is no single municipality-wide CEN-2 figure [1]. The applicable numbers depend on which precinct your parcel sits in, so the only reliable values come from the RC LUB and ExploreHRM for your specific lot.

Which usually limits a CEN-2 project more — FAR or height?

It depends entirely on the parcel. FAR gives you flexibility to redistribute floor area, while height (especially where a viewplane or rampart applies) is a hard line. Your buildable envelope is whichever control you reach first. On narrow lots, FAR is often binding; on wider lots, height and stepback rules frequently bind first [1][2].

What happens if I want to build taller than the precinct height limit?

Exceeding a precinct height limit, or encroaching on a protected viewplane or rampart, is not a development-officer variance — it requires a development agreement or rezoning approved by Regional Council, a discretionary, public, multi-month process with no guaranteed outcome [3]. Designing within the as-of-right envelope avoids that path and is the most predictable route to a permit.

Does a CEN-2 building use the simpler Part 9 building code?

Often not. Only buildings 3 storeys or fewer with a building area of 600 m² or less (and an eligible occupancy) qualify for Part 9 of the National Building Code as adopted in Nova Scotia; larger buildings are Part 3, with more demanding requirements [4]. Many CEN-2 mixed-use forms cross that threshold, which materially affects cost and design.

Sources

1. Halifax Regional Municipality — Regional Centre Land Use By-law / Regional Centre Plan Area. https://www.halifax.ca/about-halifax/regional-community-planning/community-plan-areas/regional-centre-plan-area
2. Halifax Regional Municipality (Centre Plan) — Centre Plan height, viewplanes, ramparts, human-scale design and transitions. https://www.halifax.ca/about-halifax/regional-community-planning/regional-plan/centre-plan
3. Halifax Regional Municipality Charter (Nova Scotia) — as-of-right development permits, variances, and development agreements / rezoning. https://nslegislature.ca/sites/default/files/legc/statutes/halifax%20regional%20municipality%20charter.pdf
4. National Research Council Canada — Illustrated User's Guide, National Building Code of Canada 2020, Part 9 (Part 9 vs. Part 3 thresholds). https://nrc.canada.ca/en/certifications-evaluations-standards/codes-canada/codes-canada-publications/illustrated-users-guide-national-building-code-canada-2020-part-9-division-b-housing-small-buildings
5. Canada Revenue Agency — GST/HST Notice 342, Nova Scotia HST rate decrease to 14% (effective April 1, 2025). https://www.canada.ca/en/revenue-agency/services/forms-publications/publications/notice342/nova-scotia-hst-rate-decrease-questions-answers-general-transitional-rules-personal-property-services.html
6. Excise Tax Act, RSC 1985 c. E-15, Schedule V, Part I, para 6 (Justice Laws) — long-term residential rent is GST/HST-exempt. https://laws-lois.justice.gc.ca/eng/acts/e-15/page-120.html
7. Canada Revenue Agency — GST/HST Purpose-Built Rental Housing (PBRH) Rebate; Government of Nova Scotia — Purpose-Built Rental Housing Rebate (provincial 9%). https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/gst-hst-businesses/gst-hst-rebates/purpose-built-rental-housing.html
8. Halifax Water — Regional Development Charge (multiple-unit dwelling $5,405.81/unit, effective April 1, 2024). https://www.halifaxwater.ca/regional-development-charge
9. Government of Nova Scotia — Rent Cap Facts (5% cap through December 31, 2027). https://novascotia.ca/residential-tenancies-tenants-and-landlords/docs/rent-cap-facts-en.pdf