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Gords design & build
Hertfordshire & North London

Architectural Garden Rooms in North London & Herts

Engineered to full residential house standards, from £20,000 + VAT. Built under Permitted Development across Hertfordshire and North London in 2 to 3 weeks.

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Built like a house. Installed in days.

Most garden buildings are glorified timber sheds with thin insulation and short lifespans. GORDS builds residential micro-extensions.

We engineer every outbuilding using the exact same structural C24 timber, PIR thermal insulation, EPDM roofing membranes, and powder-coated aluminium glazing used in £200k+ house extensions. Because we pre-assemble our structural frames at our St Albans workshop hub, we eliminate weeks of noise, skip clutter, and trade disruption in your garden.

  • Permitted Development Compliant: Engineered under 2.5m eaves height to bypass lengthier planning applications in most properties.
  • Year-Round Thermal Efficiency: 100mm C24 timber framing lined with high-performance PIR insulation keeps your space warm in winter and cool in summer.
  • 100% Fixed-Price Certainty: Comprehensive, line-item proposals with zero hidden extras or surprise variation fees.
  • 10-Year Structural Guarantee: Complete peace of mind backed by certified Part P electrical and plumbing sign-offs.



Prices in your area

Garden rooms start from £20,000 + VAT. Prices depend on where you live: planning rules, access and the finish people choose differ from area to area. See guide prices, room types and local advice for your area.

Garden rooms in Highgate Garden rooms in St Albans


What is included

  • Site audit and fixed, line-item proposal
  • Ground-screw foundations
  • Insulated timber frame and roof
  • Aluminium glazing and cladding
  • Electrics, data and heating
  • Decoration, certificates and handover
Technical specification
  • Foundations: Low-impact heavy-duty ground screw foundations – zero bulk excavation, zero spoil heaps, and installed in a single day without damaging tree roots.
  • Structural Frame: C24 structural timber studs fully lined with foil-faced PIR insulation (walls, floor, and roof) for exceptional U-values.
  • Exterior Cladding: Choice of Grade-A Western Red Cedar, Thermowood tongue-and-groove, Shou Sugi Ban (burnt larch), or standing-seam zinc.
  • Roofing: Single-ply EPDM rubber membrane with integrated anthracite fascia board and concealed black uPVC rainwater goods.
  • Glazing & Access: Thermally broken powder-coated aluminium bi-fold doors or slimline sliding glass doors with toughened Low-E double glazing.
  • Electrics & Connectivity: Flush consumer unit, internal LED architectural downlights, external feature uplighters, double chrome sockets, and hardwired CAT6 data connection for uninterrupted video calls.
Kitchenettes, wet rooms and joinery

  1. Luxury En-Suite Wet Rooms

    Integrated shower rooms with concealed thermostatic brassware, wall-hung WCs, micro-cement or large-format porcelain tiling, electric towel rails, and unvented hot water systems.

  2. Custom Kitchenettes & Coffee Bars

    Compact kitchen modules featuring solid stone worktops, integrated under-counter refrigeration, induction hobs, boiling water taps, and bespoke splashbacks.

  3. Custom Architectural Joinery

    Built-in media walls, hidden desk cabinetry, acoustic slat-wood feature walls, and fitted wardrobe storage crafted to maximise every square inch.


How we build

Our 4-step process

From site audit to keys in hand – upfront price certainty, off-site fabrication and a rapid, low-disruption build.

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  1. 01

    Site Audit & Detailed Proposal

    Upfront price certainty before you commit. Submit your site dimensions or book an on-site audit. We issue a transparent, line-item proposal outlining fixed costs, floor plans, and material options.

  2. 02

    Off-Site Workshop Fabrication

    Pre-assembled in St Albans to eliminate site noise. We pre-engineer and cut your timber frame, roof cassette, and insulation panels at our St Albans workshop hub, drastically reducing disruption on your property.

  3. 03

    Rapid On-Site Assembly (10–14 Days)

    From ground screws to plastering in two weeks. Our site team installs ground screws, erects the pre-fabricated frame, seals the roof, fits glazing, and completes first-fix electrics and plumbing with minimal noise and zero street clutter.

  4. 04

    Turnkey Handover & Guarantee

    Full sign-offs and keys in hand. We complete final decorations, fit-out testing, Part P electrical certification, and issue your 10-Year Structural Guarantee upon final inspection.


Frequently Asked Questions

Do I need planning permission for a garden room?

Usually not. Our standard designs are engineered under 2.5m eaves height, qualifying as Permitted Development. For listed buildings or strict conservation areas (e.g., Highgate N6 or Hampstead NW3), our team manages full planning and conservation consent applications on your behalf.

How long does the on-site build take?

Because structural frames are pre-fabricated at our St Albans workshop base, on-site construction typically takes 10 to 14 working days from foundation installation to turnkey decoration.

Can I add a bathroom or kitchenette later?

It is significantly more cost-effective to install plumbing and waste runs during the initial build phase. We recommend specifying your wet room or kitchenette requirements during your initial proposal audit.

How warm is the room in winter?

Every structure is built with 100mm high-performance PIR insulation in the floor, walls, and ceiling, achieving thermal insulation standards equivalent to a newly built modern home.


Get a quote

Tell us about your garden room

Share your garden size and how you want to use the room. We will come back with a line-item proposal or arrange a site visit.

Prefer to talk? Call the St Albans desk on 01727 613653 or the London desk on 0208 0874986, or email hello@gords.co.uk.

What happens next

  1. 01
    We read your enquiryYour brief, area and the service you need.
  2. 02
    We call youA short conversation about your plans, budget and timing.
  3. 03
    We visitWe look at the space with you and explain the next steps and costs.

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