Last updated: September 2026
New homes in Carp are available in a few communities. The two largest are Diamondview Estates, where Phoenix Homes and Mattino Developments offer townhomes, bungalows and two-storey singles on larger-than-suburban lots, and Huntley Chase, where Patten Homes builds bungalows and two-storey homes on estate lots of roughly 1.5 to nearly 3 acres. Buyers signing an agreement between April 1, 2026 and March 31, 2027 may also qualify for Ontario’s enhanced HST rebate on new homes, which can make a significant difference to the price. Smaller projects include Huntley Hollow, a rental community of bungalow townhomes and apartments in the village, and Arbourbrook Estates, a small estate-lot subdivision between Carp and Stittsville.
This guide covers Carp’s new-home communities, the rebates and warranty, and what to check before signing with a builder.
Where Are New Homes Being Built in Carp?
Diamondview Estates
Diamondview Estates is Carp’s largest new-home community. It launched in 2017, and its developer, Sheldon Creek Developments, describes a master plan of about 800 homes over multiple phases. Homes have been built by Phoenix Homes, Mattino Developments and Sheldon Creek Homes.
- Home types: townhomes, bungalows and two-storey single-family homes
- Lots: mostly 50 to 65 feet wide, with some larger lots in later phases backing onto Carp Creek
- Setting: described by its builders as a community nestled in nature, with walking paths beside a tributary of the Carp River, a short drive from Kanata, Tanger Outlets and the Kanata tech park
- Servicing: according to the developer, the community has its own water services and a private sewage treatment plant, rather than individual wells and septic systems
- Nearby: Carp village‘s cafés, creamery, brewery and the Diefenbunker
Diamondview gives buyers new construction with a village feel. It’s one of the few places near Ottawa where you can buy a new townhome or single-family home beside a small rural village rather than in a large suburb. Ask the builders how the community’s shared water and sewage systems are operated and paid for, along with lot premiums, phases and occupancy dates, since these change as the community builds out. The Diamondview Estates guide covers the community in more detail.
Huntley Chase
Huntley Chase is a newer estate-lot community by Patten Homes, off Carp Road south of the village, launched in 2023. It offers bungalows and two-storey homes of about 1,900 to 2,900 square feet on lots of roughly 1.5 to nearly 3 acres, with quick access to Highway 417, Kanata and Stittsville.
Estate-lot new builds combine modern construction with the space and privacy of a country property. Like most rural homes, they’re likely to rely on a private well and septic system, so ask the builder how those are designed, installed and warrantied. The guide to Carp estate homes covers what to expect from this type of home.
Huntley Hollow
Huntley Hollow, by Inverness Homes, is on about 20 acres off Langstaff Drive, beside the Carp fairgrounds in the heart of the village. It’s a rental community planned for about 209 homes: bungalow townhomes and a low-rise apartment building. The project was first proposed as a community aimed at the 55-plus market, and the homes are offered for rent, not for sale, with bungalow townhomes advertised from about $3,400 a month. Check current rents and availability directly with the builder. For downsizers who want a new, single-level home within walking distance of the village, it’s one of the few options near Ottawa. See downsizing in Carp.
Arbourbrook Estates
Arbourbrook Estates, by Metric Homes, is a small estate subdivision off Carp Road near Richardson Side Road, between Carp and Stittsville. Its first phase of 12 lots, launched in 2023, ranges from about 1.3 to 3 acres, and buyers can choose from Metric’s plans, bring their own, or combine the two. Contact the builder for current availability.
Village New Builds vs Estate-Lot New Builds
A new build in or near the village (such as Diamondview Estates) suits you if you want:
- A lower price point, including townhome options
- A smaller lot with less upkeep
- To be close to the village’s shops, school, library and health centre
- A neighbourhood feel with other young families and downsizers
An estate-lot new build (such as Huntley Chase or Arbourbrook Estates) suits you if you want:
- Space and privacy, with room for a pool, shop or large yard
- A country setting with modern construction
- To accept a well, septic and a longer driveway in exchange for land
The Carp community guide explains the village and countryside in more detail.
What HST Rebates Apply to New Homes in 2026–2027?
New homes are subject to HST, and in 2026 both levels of government have expanded rebates. Builders usually show prices with rebates already assigned to them, so understand exactly which rebates are built into a price before you compare.
Ontario Enhanced New Housing Rebate
According to the Canada Revenue Agency’s guidance on the Ontario Enhanced New Housing Rebate, individuals who buy a new home from a builder, whether or not they’re first-time buyers, can receive a rebate of the full 8% provincial portion of HST on homes up to $1 million, to a maximum of $80,000. Homes from $1 million to $1.5 million get a flat $80,000, with a reduced rebate up to $1.85 million.
To qualify, the agreement of purchase and sale must be signed between April 1, 2026 and March 31, 2027, with construction and completion deadlines after that. Owner-built homes can also qualify.
Federal First-Time Home Buyers’ GST Rebate
First-time buyers may also qualify for the federal First-Time Home Buyers’ GST/HST rebate, which covers 100% of the GST (the federal part of HST) on a new home valued up to $1 million, with partial relief up to $1.5 million.
Rebate rules have detailed conditions about who qualifies, the primary-residence requirement, and how rebates are assigned to the builder. Have your real estate lawyer review the rebate terms in any builder agreement before you sign.
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Your Tarion Warranty
New homes in Ontario come with a statutory warranty administered by Tarion. Coverage includes defects in work and materials in the first year, certain items such as water penetration and building envelope, plumbing, electrical and HVAC systems for two years, and major structural defects for seven years. Builders must be licensed by the Home Construction Regulatory Authority, where you can check a builder’s licence and history.
Learn how the warranty process works before your pre-delivery inspection, and keep records of every issue you report.
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What to Check Before You Sign with a Builder
A builder’s agreement is written by the builder. Before you sign, have a lawyer review it and pay attention to:
- Price and what’s included: standard features versus upgrades, and whether the price includes HST with rebates assigned to the builder.
- Lot premiums: extra charges for larger, ravine, corner or backing-onto-green-space lots.
- Closing adjustments: development charges, utility connection fees, Tarion enrolment and other costs added at closing. Some can be capped through negotiation.
- Occupancy dates: firm and tentative dates, how much notice the builder must give of delays, and what compensation applies under Tarion’s delayed-closing rules.
- Deposit structure and protection: how much, when, and how deposits are protected.
- Well and septic (on estate lots): who designs and installs them, what’s warrantied, and water quality testing before closing.
- Cooling-off period: new condo buyers in Ontario have a 10-day cooling-off period. Ontario has legislated a similar right for new freehold homes, but its start has been reported as delayed to 2027. Until it takes effect, a freehold agreement may be binding once signed, so have your lawyer review it first or make it conditional on legal review.
Should You Use a REALTOR® to Buy New Construction?
Many buyers walk into a sales centre without an agent, but the sales team works for the builder. Your own REALTOR® can help you compare communities and lots, understand which upgrades add resale value, negotiate what’s negotiable, and plan the sale of your current home around an uncertain closing date. The guide to whether you need a realtor for new construction explains how it works.
Most builders expect your agent to be with you at your first visit to the sales centre, so bring them from the start.
New Build vs Resale in Carp
A new home offers modern systems, energy efficiency, a warranty and the chance to choose finishes. A resale home in Carp offers established trees and landscaping, often a larger lot for the money, and certainty on price, timing and what you’re getting. It’s also where you’ll find most country properties with a shop or acreage.
For a detailed comparison, see new build vs resale. For the wider Ottawa new-home market, including other builders, see new construction homes in Ottawa and the Ottawa new home builders directory.
Timing a New Build When You Have a Home to Sell
The biggest risk for most new-home buyers isn’t the house. It’s the timing. A builder’s closing date can move, sometimes by months, while your current home has to be sold on a firm date. Sell too early and you may need temporary housing. Sell too late and you could be carrying two homes, or bridging with expensive financing.
Planning this well means understanding how firm your builder’s dates are, when to list your current home, what closing date to negotiate with your buyer, and what backup plan is available. The guide to buying and selling at the same time covers the options.
How Jason Polonski Helps New-Construction Buyers in Carp
Jason Polonski, a REALTOR® with Right at Home Realty, has more than 15 years in Ottawa’s west end, a Bachelor of Commerce in Marketing and Finance from Concordia University, and recognition including the Chairman’s Club (2025, 2021) and Best in Ottawa Top REALTOR® seven years running. In a sales centre, his construction background helps you read builder specifications, choose upgrades that matter (electrical capacity, rough-ins, structural options) and prepare for your pre-delivery inspection.
As a move coordinator, he lines up your sale and purchase so you don’t carry two homes, and offers a 1% Listing Commission, charged on the final sold price, on the home you’re selling. His aim is to help you avoid a timing mistake first, then get the best price second. Learn more about Jason or read client reviews on his Google Business Profile.
Talk to Jason About New Homes in Carp
Thinking about Diamondview Estates, Huntley Chase or another new home in Carp? Contact Jason before your first sales-centre visit. Call or text (613) 601-9333 or email polonskiottawa@gmail.com. He’s available seven days a week. Browse all Carp homes for sale or explore the Carp real estate guide.
Buying or selling in Carp? Work with a local Carp real estate agent.
Frequently Asked Questions About New Homes in Carp
The main new-home communities are Diamondview Estates, developed by Sheldon Creek Developments with homes by Phoenix Homes, Mattino Developments and Sheldon Creek Homes, and Huntley Chase, an estate-lot community by Patten Homes off Carp Road south of the village. Smaller projects include the Huntley Hollow rental community in the village and Arbourbrook Estates between Carp and Stittsville.
Diamondview Estates offers townhomes, bungalows and two-storey singles on lots of about 50 to 65 feet. Huntley Chase offers bungalows and two-storey homes on lots of roughly 1.5 to nearly 3 acres.
Yes. The Ontario Enhanced New Housing Rebate can cover the full 8% provincial portion of HST on new homes up to $1 million, to a maximum of $80,000, for agreements signed between April 1, 2026 and March 31, 2027. Confirm eligibility with your lawyer.
Yes. New homes in Ontario are covered by Tarion’s statutory warranty, including one-year, two-year and seven-year coverage for different types of defects.
It isn’t required, but the builder’s sales staff represent the builder. Your own agent can help you compare options, negotiate and plan the sale of your current home. Bring them to your first sales-centre visit.
It depends on the community. Estate-lot homes are generally on a private well and septic. Diamondview Estates, according to its developer, has its own water services and a private sewage treatment plant. Ask the builder about servicing for the specific lot.
