Jason has worked as a building designer for over 20 years, with extensive experience in residential & commercial projects, both large & small.

He is an active member of the building design industry, currently serving as the President/Chairperson (Gosford Wyong Chapter) of the Building Designers Association of Australia.


Jason honed his skills in inner city architectural firms working on luxury residential, multi-unit residential, commercial, industrial & institutional projects over a period of 13 years before establishing Tyrrells Architects where he worked as the General Manager & lead designer for a further 9 years.Clients repeatedly remark on the considered and inspired approach that Jason takes towards design.


In 2017 Jason established his own design firm 'Studio 23 design' to continue providing design excellence in residential & commercial buildings.


Professional membership

2017 - Current: President/Chairperson Gosford Wyong Chapter Building Designers Association of Australia

2016 - 2017: Vice President Gosford Wyong Chapter Building Designers Association of Australia

2008 - Current: Building Designers Association of Australia



2008 - Asbestos Identification and Management - TAFE

2004 - Occupational Health & Safety Construction Induction Training Certificate

1995 - Associate Diploma in Applied science (Architectural Drafting)

Jason Klumpp

Building Designer - MBDA Aus

Previous Experience

2008 – 2016 Tyrrells Architects

Building Designer/ General Manager

Key Projects Include:

  • Kirribilli Heritage Terrace: Substantial alterations & additions to a 1889 terrace, including a 3 storey contemporary addition & complete refurbishment of the original terrace.

  • The Salvation Army, Temora: A new heritage sympathetic multipurpose community hall & administration offices adjacent to t a heritage listed church.

  • Cheltenham House: A new home in a heritage conservation area on an overland flow affected site

  • Landmark Apartments/ Radisson Hotel: Complete refurbishment of existing indoor pool & gymnasium area with high durability/ low maintenance materials & finishes

  • Castle Hill townhouses: A complex 7 unit residential townhouse development

  • GKY Church, Surry Hills: Refurbishment & change of use of a heritage listed sandstone church to reinstate as a place of public worship

  • Grand Motel, Wyong: Conversion of a disused bottle shop at the rear of the Grand Hotel into a modern 17 room motel complex

  • Point Piper Residence: Extensive refurbishment of a $30m home on the harbour at Point Piper

  • The Salvation Army, Auburn: Rejuvenation of existing office building in Auburn to house several departments of the Salvation Army and the Auburn Worship Centre

  • Elizabeth Bay unit: Refurbishment of top floor unit in a harbour front Spanish Mission style apartment building, including loft conversion of unused roof space.

  • Grand Hotel, Wyong: Refurbishment of an existing hotel, including new outdoor gaming room, bistro and sports bar

  • Forestville: 72 'affordable' residential housing apartments

  • Turbomeca Australasia: Alterations to existing building for expanded production line, including access link to existing development.

  • Terrigal: 8 luxury 'eco-friendly' residential townhouses

  • Bellevue Hill: Remediation work to replace balconies and balustrades on art deco apartment building

  • Macron Music: Relocation of existing music store to new premises, including training rooms and performance hall.

  • Palm Court Commercial Suites: Conversion of a disused restaurant into commercial office suites. 

  • Erina: 36 'affordable housing'  apartments

  • Alterations and additions to existing homes in North Avoca, Wahroonga, Longueville, Willoughby, West Ryde, Wamberal, Killara and Mannering Park.

2003 – 2007 Neometro Architects

Architectural Assistant/ Cad Manager


Key Projects Include:

  • “The Rise”, 2 Whiting Avenue, Terrigal ($3M): 3 luxury residential apartments with basement carpark, overlooking Terrigal Beach.

  • Cnr Ash St & Pine Tree Lane, Terrigal: Mixed use retail, commercial & residential building comprising 2 retail units, commercial office space, 6 luxury residential units, and basement carpark.

  • 10 Grosvenor Rd, Terrigal: 3 luxury residential apartments overlooking Terrigal Bowl, with basement carpark

  • “Eclipse on Hills”, 34-44 Hills St, Gosford: 2 buildings comprising 30 quality residential apartments with basement carpark.

  • “Ken Duncan Gallery”, Erina Heights: Art Gallery, Café, and Theatrette for the display & sales of Ken Duncan photography.

  • Bourne Family Hotels: Design & Detailing of alterations to several taverns & Hotels for compliance with Smoking & Gaming regulations

  • “Parklands Tavern & Post Office”, Mt Penang Parklands: Proposed Tavern, Wine Centre, Brewery & Post Office

  • “Warnervale Private Hospital”, 133 Mataram Rd, Warnervale ($13M): Private hospital housing an Outpatient Clinic, Specialist Suites, Radiology, Pharmacy & Café.

  • “Taree Aquatic Club”: Proposed renovation & Extension of existing aquatic club on the Manning River.

  • Caroline Bay Apartments, 1-5 George St, East Gosford: 10 Luxury residential townhouses on Caroline Bay.

  • 11-15 Victoria Ave, Toukley: 24 Residential apartments.

  • 1-4 Holmes Ave, Toukley: 10 Residential apartments.

  • 3 Victoria St, East Gosford: 2 luxury townhouses.

  • 16 Henry Parry Drive, East Gosford: 3 mid range 2 storey residential units.

2000 – 2003 Reid Campbell Group/ Spowers Architects

Architectural Assistant/ Cad Manager

  • “The Clifton”, Lot 98 Saunders Street, Pyrmont ($15M): 8 storey building comprising 60 residential apartments, a retail unit, gymnasium & 2 storey basement car park.

  • “Aldi Stores” NSW rollout ($2-4M): Supermarkets constructed at Bankstown Airport, Villawood, Cessnock, Bathurst, Richmond, & Emu Plains, as well as desktop studies & feasibility studies for numerous others.

  • “Riverwood Business Park” 92-100 Belmore Rd, Riverwood ($49M): A 47,000m2 site combining 16 office/warehouse units of 35,000 m2, and a café.

  • “Georges Hi-Fi Building” 387 George St, Sydney: Refurbishment of a heritage office building

1996 – 2000 Bruce Swalwell Architects/ BSA Consultants

Cad Documentation Team Leader/ Cad Manager

  • “Kirribilli Grande”, 63 & 65 Kirribilli Ave, Kirribilli ($20M): 14 high luxury harbour front apartments with indoor swimming pool, gymnasium, and underground car park.

  • “The North Sydney Club/ Harbour Watch Apartments” Cnr Berry & Walker Streets, North Sydney ($8M): 48 New Apartments and Extension/Renovation of Existing North Sydney Club.

  • “Kirribilli Apartments” 69 Kirribilli Ave, Kirribilli ($9M): 6 luxury harbour front apartments.

  • “Avondale College Library” Seventh Day Adventist College, Cooranbong ($1.2M): Extension & Refurbishment of College library.

  • “The Colonnades”28-30 Glen St, Milsons Pt ($50M): 166 apartment high-rise development.

  • “Hyatt International Hotels” office fit out, 504 Pacific Hwy, St Leonards: New Corporate headquarters office fit out.

  • “California Gardens” Shanghai, China: Master planning of an 8000 dwelling satellite city including shops, schools & sporting club.