Tel : 028 9016 0472   E-Mail : jgmcontracts@gmail.com

Belfast Building & Roofing

BBR Building Contractors

Home Extensions.

We Build high specification Home Extensions. (from £75.00/FT) Offering superior Thermal and Acoustics as standard. We serve Belfast, Bangor, North Down South Antrim.  

Home Extensions Basic Specifications

  • Home Extensions Conversions etc are not Painted/Decorated as Standard.
  • Standard Electrics = 1 Light,1Switch,1 Double Socket/Room
  • Standard Plumbing = One Radiator/Room.
  • Plumbing Systems are not Upgraded as Standard.
  • Electrical Systems are not Upgraded as Standard.
  • External ground works include making good only to new Extension


As Building Contractors BBR has a wide reference base.

Residential Home Extensions, Commercial, Office, Restaurant, & Shop references Available.  

Residential   Commercial 
Kitchen – Home Extensions    Residential – Conversion
55 Ashleigh Gardens   76 Abbey Street
7 Marlboro Park   15 Crosby Street
6 Wellington Gardens   9 & 11 Crosby Street
70 Beverly Gardens   1 & 3 Dufferin Avenue
53 Killaire Park   Restaurant / Renovation
Detached Garages    15 Hamilton Road
3 Belgravia Road   9 & 11 Crosby Street
7 Belgravia Road   Office Extension 
Bedroom Extensions   34 Hamilton Road
19 Ardmillan Gardens   Shop Fronts 
7 Grange Road   76 Abbey Street
9 Jamesmount   88 Church Street
22 Jamesmount   House / Shop Conversions
53 Killaire Park   15 Crosby Street
38 Lynne Road   88 Church Street

Linkedin; Building Contractor – James Mulvenna

James is a dedicated, enthusiastic and good-natured person, whose persistence and attention to detail result in work of the highest standard. He can work long shifts to deadline building any project on location anywhere.

As a registered Master Building Contractor James can work on New Build or Restoration projects anywhere in Europe (including Donegal,Belfast etc). James speak’s fluent German and can get by in French and has experience and the skills at all levels from marking out to painting.
James is registered as a Master Building Contractor (Bau Meister) in Leipzig trade registry and worked as a Building Contractor all over the former DDR after unification.
Generally in NI James offers innovative solutions using European systems generally not available here and specializes in acoustic/thermal solutions – Zero/low Energy now being key.

James Mulvenna has contracted in various countries

Including the Republic of Ireland England,

as well as France, Holland. Belgium and Germany including the Former DDR were he was involved in some landmark projects of the 1990’s including

Potsdammer Platz

The Sony Centre”, Berlin. (European Head Quarters of Sony Corporation

The former Luftwaffe Headquarters now the new Federal Tax Office.

Germanys flagship Kempinski Hotel Adlon Berlin.

Kempinski Hotel Furstenhof Leipzig.  

This experience working with the most up to date construction systems and

Solutions on the planet gives us the crucial edge when contracting.  

 Hotel Adlon Berlin  
Building Contractors Belfast Bangor Holywood Newtownards Donaghadee

Adlon Hotel Berlin

 Hotel fürstenhof Leipzig  Building Contractors Belfast Bangor Newtownards Donaghadee Hoilywood
 Sony Centre Berlin   Building ContractorsBelfast Bangor Newtownards Donaghadee Hoilywood