TEMBOK Design & Build
Loft Conversions That Add
Space, Value and Light
Across Kent
Transform unused roof space into a stunning bedroom, home office or bathroom — without the cost and disruption of a ground-floor extension. Increase your living space by up to 30% and add significant value to your property.
5-star rated on Google · The most cost-effective way to add space
Why a Loft Conversion Is the Smartest Way to Add Space
A loft conversion transforms your existing roof space into a fully functional room — typically adding 30–50 square metres of living area without extending your home's footprint. It is consistently the most cost-effective way to gain space compared to moving house or building a ground-floor extension.
The most common loft conversions add a master bedroom with en-suite bathroom, but the space is equally suited to home offices, children's rooms, guest suites, playrooms or dedicated dressing rooms.
At TEMBOK, we handle every aspect of loft conversions across Kent — from initial feasibility assessment and structural engineering through to insulation, staircase installation, plumbing, electrics and final decoration. Our projects are completed to building regulations and signed off by building control.
Whether your property is a Victorian terrace in Tunbridge Wells, a 1930s semi in Maidstone, or a detached house in Cranbrook — we assess the existing roof structure and recommend the most suitable conversion type for your home.
Why This Matters
The Cost of Ignoring Your Loft Space
Every month your loft sits unused, you are living in a smaller home than you need to be. The average three-bedroom house has enough roof space for a full additional bedroom and bathroom — space that is already there, already heated (partially) and already weatherproofed.
Moving house to gain one extra bedroom costs tens of thousands in estate agent fees, stamp duty, legal costs and removal expenses — plus the disruption of uprooting your family. A loft conversion delivers the same result at a fraction of the cost while you stay in the home you already love.
Properties without loft conversions in areas where comparable homes have been converted sell for measurably less. Estate agents in Kent report that a well-executed loft conversion typically adds 15–20% to a property's market value — often exceeding the cost of the conversion itself.
The longer you delay, the longer you live without the space you need. A typical loft conversion takes 6–8 weeks and causes minimal disruption to daily life since most of the work happens above your existing ceiling level.
Our Process
How We Convert Your Loft
Feasibility Assessment
We survey your roof space, check head height, assess the existing structure and confirm whether your loft is suitable for conversion. We advise on the best conversion type and any planning requirements.
Design & Engineering
We coordinate structural engineering calculations, prepare building control applications and create detailed plans for the conversion — including staircase positioning, window placement and room layout.
Structural Works
Steel beams installed, floor joists strengthened, roof structure modified as needed (dormer construction, hip-to-gable, or Velux installation). The space is made structurally sound and weathertight.
First Fix & Insulation
Insulation installed to current thermal standards. Plumbing, heating and electrical first fix completed. Staircase constructed and fitted. Stud walls and ceiling built.
Second Fix & Completion
Plastering, joinery, bathroom installation (if applicable), decoration and final building control sign-off. Your new room is ready to furnish and enjoy.
What You Get
The Benefits of a TEMBOK Loft Conversion
Add 30–50 sqm of Living Space
A full loft conversion adds a complete additional floor to your home — equivalent to a large bedroom with en-suite or a spacious home office.
Increase Property Value by 15–20%
Loft conversions consistently deliver one of the highest returns on investment of any home improvement. The added value often exceeds the conversion cost.
Minimal Disruption to Daily Life
Most work happens above your existing ceiling. The main internal impact is the staircase installation, which typically takes 2–3 days.
No Planning Permission (Usually)
Most loft conversions fall under Permitted Development Rights, meaning no planning application is needed. We confirm this during the feasibility stage.
Full Building Regulations Compliance
Every conversion is designed to current building regulations and signed off by building control — covering structure, fire safety, insulation and stairs.
Natural Light from Roof Windows
Velux windows and dormers flood the space with natural light from above — often brighter than conventional windows on lower floors.
Types of Loft Conversion We Build
Velux (Rooflight) Conversions: The simplest and most cost-effective option. Roof windows are installed into the existing roof slope without altering the external structure. Ideal for homes with sufficient existing head height. No planning permission required in most cases.
Dormer Conversions: A flat-roofed or pitched-roofed dormer extends from the rear roof slope, creating additional floor area and full standing head height. This is the most common conversion type and is usually permitted development. We build box dormers, shed dormers and gable-fronted dormers.
Hip-to-Gable Conversions: For homes with hipped (sloped) side roofs, we extend the roof to a vertical gable wall — significantly increasing usable floor space. Often combined with a rear dormer for maximum room size.
Mansard Conversions: The rear roof slope is replaced with a near-vertical wall and a flat top section, creating maximum headroom and floor area. Mansard conversions require planning permission but offer the largest space gain.
Staircase Design & Installation: The staircase is often the most critical element of a loft conversion. We design staircases that comply with building regulations (headroom, pitch, width) while minimising the impact on the floor below. Options include straight flights, quarter turns, winder stairs and alternating tread stairs where space is limited.
En-Suite Bathrooms: We install fully plumbed en-suite bathrooms within loft conversions — including shower enclosures, basins, WCs, heated towel rails and underfloor heating. All waste runs are routed discreetly and connected to the existing drainage stack.
We complete loft conversions across Kent including Cranbrook, Tunbridge Wells, Maidstone and Headcorn.
Common Questions