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A well-planned loft conversion adds a bright bedroom, office or studio without extending your footprint. As a trusted loft conversion company we handle surveying, design, approvals and build across Lincolnshire, guiding you through loft conversion ideas UK and structural choices.
Browse recent projects in our Portfolio or view our Single Storey Extensions if ground-floor space is also on your wish list.
Every build exceeds NHBC standards, passes Building Control on first inspection and carries a ten-year warranty.
One contract, staged invoices only after inspections, zero hidden extras from survey through to handover.
Velux, dormer, mansard or hip-to-gable layouts drawn around your roof form, lifestyle and budget.
SB handles design, permissions, build and after-care, giving you a single expert contact throughout.
Your Choice of Loft Conversions
Our team are experts in all types of loft conversions for homes across Lincolnshire
Roof-light only design that keeps roofline unchanged, perfect for high current ridge heights
Extends a hipped end wall to vertical, maximising internal width on bungalows and semis.
Ridge is raised where minimum head height for loft conversion cannot otherwise be achieved.
Flat-roof box added to rear slope for full-height floorspace and larger window openings.
.Rear slope replaced with 72-degree face and parapet, creating an almost full extra storey
Utilises space above an attached or detached garage to form a private studio or guest room.
Survey & Feasibility
laser-measure ridge and eaves, inspect rafters, confirm stair position, produce outline sketch and provisional budget before any design fees are agreed.
Design & Fixed Quote
develop floor plan, specify windows, structural steel and insulation, then issue a fixed-price contract with timeline, payment stages and warranty terms attached.
Approvals
prepare planning or Permitted Development paperwork, lodge Building Control notice, commission structural calculations and coordinate any Thames Water or party-wall notifications.
Build Phase
install temporary roof cover, insert steels and new floor, form dormers, run electrics and plumbing, fit insulation to exceed loft conversion insulation requirements UK
and first-fix the staircase aperture.
Completion
plaster, second-fix carpentry, fit staircase compliant with loft staircase regulations, decorate, compile snag list, secure Building Control certificate; on-site work averages eight to ten weeks, our standard loft conversion timescale.
Planning is required if roof enlargement exceeds 40 m² on a terraced house or 50 m² on a detached or semi, or if you add a balcony, change materials, live on designated land or propose a dormer loft conversion that fronts the highway.
View Planning Portal guidance.
Need planning advice?
Class B rights allow rear and hip-to-gable additions if dormers are set back 200 mm, materials match existing and side-facing windows are obscure-glazed. Volume limits and technical notes are in the government guide below.
Unsure about PD?
Approval covers structural joists, fire-protected stairwells, smoke alarms on all floors and 0.18 W/m²K roof U-values. We submit calculations, schedule inspections and deliver compliance certificates.
Apply for Building Control online.
Need regs support?
Loft work in a listed home needs consent for structural changes, conservation roof-lights and insulation upgrades. We prepare heritage impact statements and liaise with Historic England.
Read Historic England guidance.
Converting a listed property?
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Ready to Build?
Fill in the form for a free detailed quote and expert advice on your Loft Conversions.
Building Regulations require 2 m clear headroom above the centreline of the new stairs and ideally 2.2 m across usable floor area. We use slim steel beams or raise the ridge to meet this where existing height is short.
Design and approvals take four to six weeks. On-site construction usually lasts eight to ten weeks, including steel insertion, dormer build, first-fix trades, plastering and staircase fitting.
We fit mains-linked smoke alarms on each floor, upgrade doors on escape routes to FD30 and provide plasterboard-encased steels. Mains hard-wired heat alarms sit in kitchens below.
Alternating tread or paddle stairs are possible for loft studies, but full habitable rooms need a compliant straight or dog-leg staircase with 42-degree pitch and 1.9 m headroom at the landing.
Most post-1960 truss roofs need steel ridge and purlin supports before dormer construction. Cut-roof houses usually accept dormers without ridge steel, provided rafter sizes meet span tables.
We frame low-level stud walls 1 m from the floor to hide insulation while keeping a continuous 600-mm-deep service void for HVAC ducts and seasonal storage boxes.
Loft Conversions Lincolnshire
Loft Conversions built by SB Construction across Lincolnshire
Coverage Areas
We've been building Loft Conversions in Lincolnshire for over 2 generations, some of these towns include:
Cottages near the River Bain demand reclaimed red pantiles and lime-pointed dormer cheeks to satisfy East Lindsey conservation officers. We use slim steel flitch beams to keep original beams visible while creating modern bedrooms. Horncastle homeowners can start loft designs today with our experienced team.
Steep-pitched Victorian roofs off Monks Road often gain slim box dormers set below the ridge to satisfy city design codes. We reinforce spine walls, upgrade escape doors to FD30 and install conservation roof-lights that respect uphill vistas across the cathedral quarter. Are you a Lincoln resident ready to reclaim roof space? Speak to our loft team today.
Clipsham limestone terraces near Burghley House require flush-fit roof-lights and small rear dormers clad in Collyweston-style slate. Our designers navigate South Kesteven conservation guidance, integrating discreet dormer cheeks and retaining chimney stacks while adding gable-end insulation to cut draughts. Planning a bespoke attic conversion Stamford homeowners trust? Contact SB now.
Proximity to the Haven demands flood-aware detailing. We raise structural floor steel above predicted levels, install vapour-open insulation and select PVC-u dormer cladding colour matched to local brick. Smoke vents discharge to the rear slope, meeting Part B without altering the “Boston Stump” skyline. Need a loft conversion Boston property owners rely on? Call us today.
Coastal winds on Humberston Fitties corrode standard hardware, so we specify marine-grade hinges on roof-lights and fibreglass dormer cheeks. Triple-glazed windows and acoustic quilt hush docks noise, creating calm bedrooms under seagull-patrolled skies. Grimsby residents seeking extra space can reach SB for design help and fixed quotes.
Post-war semis in Ashby feature low hip roofs; we extend hips to gables, add full-width rear dormers clad in buff brick slips and insulate party walls to Part E standards. Soil shrinkage risk means mini-piles underpin steel posts where necessary. Book your loft conversion Scunthorpe quotation with SB today.
Riverside semis by the Trent benefit from rear dormers wrapped in black zinc that echoes industrial heritage while resisting moisture. We design slot drains, raise sockets above flood datum and install zoned smoke detection for second-floor safety. Considering an attic conversion in Gainsborough? Our specialists are ready to help.
Modern estates off Boston Road favour Velux-only conversions that keep roof symmetry. We form new spine beams, drop chimney breasts below joist level and fit warm-roof PIR boards to hit 0.18 W/m²K. North Kesteven planners approve projects within eight weeks. Need loft space in Sleaford? Ask SB for a free survey.
Large plots on Willingham Road allow roof-lift conversions raising ridges by 300 mm, preserving Wolds sightlines while achieving headroom. Cedar cladding on cheek walls weathers silver yet needs no repainting. Market Rasen residents curious about loft options can arrange a no-obligation consultation.
Georgian terraces along Eastgate conceal flat-roofed mansard additions behind parapets, keeping street elevations untouched. We fit sash-style dormer windows, spray-foam party-wall insulation and low-profile PV panels invisible from ground level. Ready for a Louth loft conversion with heritage sensitivity? Talk to SB today.
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SB Construction started from a passion of Sam. Two generations of builders working side by side, combining decades of experience with a genuine care for the work they do and the people they work with.
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