Loft Chelmsford — Loft Conversion Specialists in Chelmsford

Loft Chelmsford converts lofts across Chelmsford and mid Essex, and does nothing else. That focus matters because a loft conversion is a structural job, and the housing here runs the full range — Victorian terraces off Moulsham Street, hipped inter-war semis through Springfield, and modern trussed estates at Beaulieu Park. What your roof will allow is decided by what is above your ceiling, not by what you would prefer. We survey every roof before quoting and give you a fixed written figure.

Our Loft Conversion Services

Five conversion types, and the right one for your house depends on roof structure, head height and where a staircase can land.

Dormer loft conversions build outward from the rear slope to create flat-ceilinged head height across most of the floor. On the inter-war semis that fill Springfield, Moulsham and Broomfield this is the most common answer and usually the right one.

Velux loft conversions fit rooflights flush into the existing slope, leaving the roof structure untouched. Where ridge height already allows a usable room it is roughly half the cost of a dormer, and inside a conservation area it is often the only route that will be approved.

Hip to gable conversions square off a sloping end roof into a vertical gable wall. Inter-war Chelmsford is full of hipped ends, and they pinch the loft exactly where the staircase needs to arrive.

Mansard conversions replace the roof structure entirely, creating close to a full extra storey. On trussed properties, where the roof is coming off anyway, it prices closer to a dormer than most people expect.

L shaped dormer conversions join two dormers across a rear outrigger, using roof space above the back addition that would otherwise sit empty. The Victorian terraces near the city centre were built to exactly that pattern.

Why Choose Loft Chelmsford

• We survey before we quote. Head height from the ceiling joists, roof identified as cut or trussed, span direction checked, staircase position established. A quotation without those four things is a guess.
• We tell you when the cheaper option is the right one. On plenty of properties a rooflight conversion delivers as much usable space as a dormer at half the cost, and we say so.
• Fixed written quotations. Structural calculations, Building Regulations submission, staircase and making good are inside the figure, not sitting outside it as provisional sums.
• We check the planning position first. Conservation status in the older towns, removed permitted development rights on the newer estates. Both are cheaper to find out before design work than after.
• Approvals handled throughout. Structural design, Building Regulations, planning and listed building consent where required, and party wall notices where a shared wall is affected.

Areas We Serve

We work across Chelmsford and the surrounding towns, and each has its own character worth knowing before you start.

Braintree spans everything from Courtauld-era weavers’ terraces to 1990s commuter estates, so the roof decides the job entirely. Witham splits between listed Georgian frontages on Newland Street and post-war overspill housing with trussed roofs. Billericay has generous ridge heights, and a rooflight conversion is genuinely enough more often there than anywhere else nearby.

Maldon climbs steeply from the Hythe, which makes scaffold access a real cost on the older streets. South Woodham Ferrers is a planned town of the mid-1970s and almost entirely trussed, which changes the conversation before it starts.

What a Loft Conversion Costs

Locally a rooflight conversion starts around £30,000 and a full mansard reaches £110,000. Very little of that spread is about finish quality. It comes down to roof structure, head height, whether the end is hipped, and whether the property sits inside a conservation area.

Our 2026 cost guide breaks that down by conversion type with worked examples from real Chelmsford streets. The head height guide explains the one measurement that determines your options, and the planning permission guide covers where permitted development ends — including the newer estates where those rights have been removed by condition.

Getting Started

The useful first step is a survey. About an hour, no charge, no obligation. You get a straight answer on what your roof can take and a realistic cost range before any money changes hands.

Guidance on Building Regulations for loft conversions, covering structure, staircases and fire safety, is published by LABC.

Call us on 01245 950 944, or request a free quote and we will come back to you within 24 hours. There is more about how we work here.