# Kreis Grennan Architecture

Kreis Grennan Architecture is a builder in Marrickville. Rated 4.9/5 from 28 public reviews across 1 review source. This is the MyTrustedTraders public-evidence profile for this tradesperson, with independent reviews, credentials and registry data from named public sources, no ads, and no paid placement.

Trust Score: 37 out of 100 (building a public record). The score rests on rated 4.9 from 28 reviews.

## About
ABOUT KGA is an established architecture design studio experienced in architecture, interiors, urban design, property development and management of construction programs. Our company’s extensive experience is supported by design director Christian Grennan, who graduated from the University of NSW in 1998. Christian is KGA’s nominated registered architect, design practitioner and a licensed builder. Our industry knowledge covers a wide range from master planning, feasibility studies, site analysis, concept designs, council building approvals, complying development approval, construction documentation, interior design, and contract administration. Established architecture practice, design-driven and results-focused. Thorough and rigorous approach to design - ‘getting the details right’. Senior staff with over 25 years of experience in architecture and design. Director oversees all projects, ensuring a tight Quality Management System. Medium size practice – capacity to manage large projects, but flexible, efficient and collaborative in our methodology and approach. WE LISTEN WE CREATE WE CRAFT GREAT SPACES

## Public review evidence (by source)
| Source | Average rating | Reviews |
| --- | --- | --- |
| Houzz | 4.9/5 | 28 |

## Trades
Builder

## Services they list
_Listed on public sources or the business's own website; check directly that they cover your job before you book:_
- Architectural Design
- Architectural Drawings
- Bathroom Design
- Custom Homes
- Deck Design
- Energy-Efficient Homes
- Floor Plans
- Green Building
- Home Additions
- Home Renovating
- House Plans
- Living Room Design

## See their work
_Portfolio and gallery links this business publishes. Inspect the source to see what each image represents:_
- [Instagram](https://www.instagram.com/kreisgrennanarchitecture)
- [Facebook](https://www.facebook.com/kreisgrennan)

## Awards & recognition
- 11× Best of Houzz winner (2025, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2013)

## What we checked, and when
_What MyTrustedTraders independently checked for this business (verified items only):_
- Review volume: MyTrustedTraders shows 28 public reviews on this profile. (via MyTrustedTraders public listing)
- Public listing spread: MyTrustedTraders shows 1 public listing for this tradesperson. (via MyTrustedTraders public listing)
- Business identity: MyTrustedTraders shows public business identity data with operating status unknown. (via MyTrustedTraders public listing)
- Contact phone: MyTrustedTraders shows a public phone contact on this profile. (via MyTrustedTraders public listing)
- Website: MyTrustedTraders shows a public website for this tradesperson. (via MyTrustedTraders public listing)

Full verification checklist: https://au.mytrustedtraders.com/traders/kreis-grennan-architecture/checks

## Credentials & sources
- Credentials shown: 0
- ASIC status: Unknown
- Evidence held from: Houzz
- Check dates vary by source. Where we hold a date, the check shows it.

## What this business says about itself
_Self-declared, not independently verified:_
- Typical project cost: $500,000 - 2,000,000 (stated on Houzz)

## Before you hire a builder
_What to check when choosing this kind of trade (general guidance, not a claim about this business):_
- Never pay a large deposit up front. Agree a staged payment schedule tied to completed milestones, and hold a small retention until snagging is done.
- Get it in writing: an itemised quote with scope, materials, start and finish dates, and how any changes (variations) will be priced.
- Be wary of a cash-only price or pressure to start tomorrow. Both are red flags for an unaccountable job.
- Trade and building licensing in Australia is set by each state or territory. Check the relevant regulator (e.g. NSW Fair Trading, QBCC in Queensland, VBA in Victoria) that the contractor holds a current licence for the work type and value before you hire.
- For larger residential building work, confirm the contractor carries the home-building / domestic-building insurance your state requires before you pay a deposit. It is what protects you if the work is left unfinished or defective.

## Contact
- Phone: (02) 9560 0888
- Website: http://www.kreisgrennan.com.au

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Source: MyTrustedTraders, https://au.mytrustedtraders.com/traders/kreis-grennan-architecture
Real public evidence only: every figure traces to its named source. The evidence for this business comes from a single public source, so it is not yet cross-checked against a second. If a source does not carry a field, it is not shown.