AREAS · POTTERS BAR
Orama Design & Build is based in Potters Bar, providing complete residential refurbishments, house extensions, loft conversions, and structural alterations across EN6, Little Heath, Cuffley, Brookmans Park, and South Hertfordshire.
Potters Bar · Founder-led coordination
Why Orama in Potters Bar
For detached, semi-detached, and 1930s-1970s suburban homes across Potters Bar and the wider EN6 postal area, Orama provides property-specific structural reviews, planning guidance, and fixed-scope construction.
Services in Potters Bar
Explore our specialised architectural building capabilities delivered across Potters Bar with master builder oversight on every phase.
Re-plan and renew disconnected or outdated interiors as one coordinated scope.
Explore refurbishments →Add well-connected living space with the existing home considered from the outset.
Explore home extensions →
Explore roof-space potential, access, daylight, storage and structural requirements.
Explore loft conversions →
Coordinate engineered openings, temporary works, sequencing and making good.
Explore structural alterations →
Resolve layouts, services, lighting, joinery, surfaces and installation.
Explore kitchens & bathrooms →
Coordinate the appropriate drawings, submissions and professional input.
Explore design & planning coordination →Site & structural nuances
Housing styles, ground conditions, and structural load distributions differ significantly across North London and South Hertfordshire.
Project coordination
Every project is led personally by master builder Costas Joannides, ensuring consistent accountability from initial layout sketches to final building control sign-off.
Free on-site consultation with Costas reviewing goals, budget parameters, and structural feasibility.
Statutory planning checks, structural steel engineering, party wall notices, and fixed-scope pricing.
Clean site management, disciplined trade sequencing, building control stage inspections, and weekly updates.
Detailed snagging, electrical/gas sign-off, Building Regulations Completion Certificate, and warranty pack.
Local build portfolio
Real site photography from recent residential extensions, bespoke kitchens, structural alterations, and loft conversions completed across Potters Bar and South Hertfordshire / North London under the direct supervision of Costas Joannides.
Single-storey rear expansion, structural steel knock-through, wet underfloor heating, and level patio threshold.
Substructure excavation, cavity brickwork matching, RSJ steel goalposts, and roof lantern aperture.
Multi-zone hydronic underfloor heating, uncoupling membrane, and polished marble-effect floor tiling.
Exterior facade restoration, timber gable detailing, drainage channels, and resin driveway paving.
Planning an extension, loft conversion, or structural reconfiguration? Master builder Costas Joannides (45+ years experience) visits your property for a comprehensive, no-obligation feasibility evaluation.
Planning & statutory guidance
Check planning allowances for Potters Bar properties, maximum extension depths, loft volumes, and local Hertsmere Borough Council requirements.
Single-storey rear extensions up to 3.0m are typically Permitted Development. Under the Larger Home Extension Prior Approval scheme, you can extend up to 6.0m with a simplified 42-day neighbour consultation.
✓What you need before breaking ground for this project:
Master Builder's Advice — Costas Joannides (45+ yrs experience)
"If you want maximum glass width with slim aluminium sliding doors, calculate your steel goalpost early. A steel goalpost frame eliminates the need for bulky corner brick piers."
Unsure about your property's specific planning constraints?
Costas personally reviews drawings and property history during our free founder site consultation.
Statutory & technical roadmap
Every successful extension or structural refurbishment requires clear statutory sequencing before breaking ground. Here is the 5-step checklist Orama coordinates for your address.
Confirm whether your proposed extension depth, ridge height, or dormer volume falls under Class A/B Permitted Development with Hertsmere Council, or requires a Certificate of Lawfulness / Householder Application.
Commission structural calculations and steel goalpost schedules for all wall knock-throughs, floor supports, and roof alteration spans to satisfy Part A of Building Regulations.
Serve formal statutory notices (Section 1, 2, or 6) to adjoining neighbours for shared wall steel inserts or foundations excavated within 3m.
Identify public sewer runs crossing your rear garden footprint and obtain an official Build-Over Agreement if building within 3 metres of an adopted drain.
Submit an Initial Notice with Hertsmere Building Control or an approved independent building inspector (CICAIR) for stage-by-stage site inspections.
Most residential avenues in EN6 enjoy full Permitted Development rights, though properties bordering green belt or specific estate covenants require verification.
Planning & local building control
Planning status, permitted development allowances, structural design, and party wall requirements depend on the exact property and proposal. Orama coordinates with the appropriate appointed professionals; no outcome is assumed.
Have a specific question about your road?
Costas Joannides has completed residential projects across Potters Bar for decades. Speak with him directly to review your property's potential.
Potters Bar Homeowner FAQs
Many single-storey rear extensions up to 3m (or up to 6m under the Prior Approval scheme for attached homes) and rear dormer loft conversions up to 50m³ fall under Permitted Development rights with Hertsmere Borough Council. If your property is detached, single-storey rear extensions can extend up to 4m (or 8m under Prior Approval). We verify your property's specific planning history during the initial site visit.
We coordinate the complete statutory sequence—submitting architectural plans, structural engineering calculations, and booking stage inspections (foundation depth, damp-proof membrane, structural steel installation, insulation, and final sign-off) to secure your Building Regulations Completion Certificate.
Before work commences on site, you need: 1) Confirmed Planning / Lawful Development Certificate, 2) Structural steel calculations and padstone details, 3) Signed Party Wall Awards (if within 3m of neighbours), 4) Thames Water build-over approval if spanning sewers, and 5) An appointed Building Control inspector.
A rear kitchen extension typically takes 12 to 16 weeks on site, a dormer loft conversion takes 8 to 12 weeks, and a combined whole-house refurbishment with extension takes approximately 16 to 24 weeks. Costas provides a detailed schedule before start of works.
Orama is founder-led. Master builder Costas Joannides personally supervises site progress, trade sequencing, structural inspections, and weekly homeowner updates from first consultation through to final handover.
What Our Clients Say
Local feedback from EN6 homeowners who have worked with Orama on extensions, refurbishments, and structural work.
Orama Design & Build Ltd · Verified Google Business Profile
Verified Google Review
"We used Orama to dig out and lay a paved garden area. Costas is very approachable and really helped us with the choice of paving and layout. His team were hardworking and efficient and we were kept informed at each stage i.e. when materials would be delivered and removed debris would be taken away. We thoroughly recommend them."
Verified Google Review
"The team were amazing, did a whole double storey extension and renovation very quickly and efficiently to a high standard. Costas is professional, reliable, and attentive."
Verified Google Review
"Costas and his team are excellent. Trustworthy, great eye for detail and quality, reliable, committed and easy to work with. Very much a family business with character, integrity and accountability. Excellent."
Start your project in Potters Bar
Share your property address, scope, and target timing. Costas visits your home for a free, comprehensive feasibility and planning assessment.