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Granny Flats by Hallmark

Updated 2026-10-05 · 3,129 reviewed · 177 listed · Scored from 6 Google reviews · How we rank ›

5.0(6) 67 composite score See reviews on Google ✓ Google-verified
Granny Flats & Home ExtensionsHome BuilderConstruction CompanyBuilding Consultant
Granny Flats by Hallmark
Services
Granny Flats & Home Extensions, Home Builder, Construction Company
Reviews
6
Best for
Homeowners adding granny flats or extensions in tight backyard spaces who value clear communication and mid-build flexibility.

Business data from Google Business Profile, checked 2026-10-05.

What reviewers think

Every reviewer credits Mark and his team with delivering granny flats and extensions on time, with high-quality finishes and minimal backyard disruption. Clients consistently praise transparent advice, willingness to accommodate mid-build changes, and personable site communication that made a potentially stressful process feel smooth and collaborative.

Praised for
  • on-time delivery
  • transparent communication
  • responsive to changes
  • quality craftsmanship
  • minimal disruption during work
on-time-handoverquality-craftsmanshipresponsive-teamprofessional-staffpost-handover-supporttransparent-pricing
Best for: Homeowners adding granny flats or extensions in tight backyard spaces who value clear communication and mid-build flexibility.

Strengths

  • on-time completion
  • works well in tight spaces
  • transparent communication
  • open to mid-build changes

Worth knowing

  • Mark leads projects from consultation to handover
  • handles custom-designed garage and ancillary accommodation
  • manages builds in tight-access spaces with minimal disruption
  • accommodates design changes during construction

What reviews say by service

Granny Flats & Home Extensions
custom granny flats delivered on time with high-quality finishes and responsive client communication
Home Builder
custom-designed ancillary accommodation built to schedule in constrained spaces
Construction Company
professional site management minimizes disruption and incorporates client feedback throughout
Building Consultant
provides transparent advice and design guidance from initial consultation through project completion

How it compares

  • Rated 5 against a 4.8 average across the 70 granny flats & home extensions businesses listed here.
  • Has more Google reviews than 35% of the businesses in this directory.

How did this business earn its score?

How We Score
Star rating 78
Review volume 37
Review recency 45
Review sentiment 81
Profile completeness 75
Verification 30

Rating breakdown

5
6
4
0
3
0
2
0
1
0

Questions people ask

Do you handle granny flats in small backyards?
Yes. Reviews describe successful builds in tight-access spaces with minimal disruption to the existing property.
Can I change things once the build starts?
Yes. Clients report Mark and his team are open to suggestions and changes as work progresses.

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Mark and Blair deliver hands-on attention across custom homes, even managing remote clients effectively. Reviewers praise their responsiveness, willingness to adapt designs, and supervisor dedication to site quality.

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Matt, Kieran, and Mark have built a loyal customer base by taking time to understand needs, avoiding pushy tactics, and standing behind products with genuine expertise. The best experience comes from one-on-one consultation in-store and straightforward product advice; delays and installation hitches have occasionally been muddled by slow communication and, in one case, dismissive handling of a feedback issue. Most shoppers return repeatedly for TV, receiver, and speaker purchases, citing competitive pricing and willingness to source out-of-stock items. A standout weakness is the lag between order placement and delivery updates, and isolated poor handling when technical advice goes wrong. The store has recently refreshed its look and service culture under new ownership.

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iBUILD SOLUTIONS
66 low data

iBUILD SOLUTIONS

5.0(13)✓ Google-verified

All 13 reviews are five-star. Customers consistently praise Lee and his team for professional conduct, transparent pricing, and finishing on schedule. Work ranges from bathroom and kitchen overhauls to structural renovations, patios, and full home rebuilds; sites stay clean, communication stays steady, and outcomes exceed expectations.

Custom Home BuildersConstruction CompanyGranny Flats & Home Extensions

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Last updated 2026-10-05