Loft conversions in Oxford, built by people who only build lofts.

Turn unused attic space into a beautiful, functional room — without the cost or upheaval of moving. One local team manages your design, planning and build from start to finish.

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10 yrslocal Oxford experience

4.8/5average client rating

10-yrstructural guarantee

24 hrsquote turnaround

Oxford Loft Conversion — Rear dormer conversion — Jericho, Oxford

Why Oxford homeowners choose us

Loft conversions are all we do.

Not general builders who occasionally take on a loft — a specialist team that knows Oxford roofs, Oxford planners, and Oxford properties in detail.

Local specialists

We know the difference between a Jericho terrace, a Headington semi and a North Oxford detached — before we even survey it.

One team, start to finish

Design, planning, Building Regs, construction and finishing — a single project manager, not five separate trades to chase.

Fixed, transparent quotes

An itemised written quote valid for 60 days. No vague estimates that balloon once work begins.

10-year guarantee

Every structural element is covered, backed by full public liability and professional indemnity insurance.

4.8/5 client rating

Rated across quality, communication, timekeeping and value by homeowners we’ve already worked with.

Minimal disruption

You stay living in your home. Dust barriers, daily clean-up, and work scheduled around your routine.

Conversion types

Four ways to convert an Oxford loft.

Every roof is different. Here’s how the four main conversion types actually change your roofline — and which Oxford properties suit each.

Usually no planning needed

Rooflight (Velux) Loft Conversion Oxford

Windows fitted straight into the existing roof slope — no change to the roof shape. Fastest and most affordable option, done in 4–6 weeks.

Often permitted development

Dormer Loft Conversion Oxford

The roof is extended outward to create standing headroom and real floor space. Oxford’s most popular conversion, especially rear dormers.

Usually needs planning permission

Hip to Gable Loft Conversion Oxford

The sloped side of a hipped roof is rebuilt as a vertical gable wall — substantially more space for semi-detached and detached homes.

Usually needs planning permission

Mansard Loft Conversion

A near-vertical wall with a flat top reshapes the whole roof — maximum space and value, best suited to detached Oxford properties.

Across every conversion type: add 20–30% to your property value · gain 300–550 sq ft of new living space · avoid the cost of moving · keep your family in the Oxford area you already love.

Planning & regulations

Do you need planning permission?

Many Oxford loft conversions are built under permitted development and never need a planning application. We check this for you at the free survey stage.

Usually no permission needed

Added volume under 40m³ (terraced) or 50m³ (semi/detached)
Materials match the existing house
Rear dormers on terraced & semi-detached homes
Rooflight / Velux conversions within existing roofline

Permission usually required

Properties in a conservation area or listed buildings
Hip to gable and mansard conversions
Front-facing dormers
Previous use of your permitted development allowance

Route	Typical timeline
Permitted development only	2–3 weeks approval, then straight to start
Planning permission required	8–12 weeks approval
Conservation area properties	12–16 weeks approval

Cost guide

What a loft conversion costs in Oxford.

Transparent, itemised quotes — no hidden fees, no estimates that grow once work has started.

Conversion type	Typical cost	Timeline	Space created
Rooflight (Velux)	£28,000 – £35,000	4–6 weeks	300–400 sq ft
Rear dormer	£35,000 – £48,000	6–8 weeks	350–450 sq ft
Hip to gable	£42,000 – £55,000	8–10 weeks	400–500 sq ft
Mansard	£50,000 – £70,000	10–12 weeks	450–550 sq ft

Return on investment — a well-executed loft conversion typically adds 20–30% to an Oxford property’s value. On a £350,000 home, a £40,000 conversion could add £70,000–£105,000, and converted properties consistently sell faster in Oxford’s market.

How it works

Five steps from survey to handover.

1
Free consultation & site survey
We visit your Oxford property, assess the loft, and talk through what you want the space to do — no obligation.
2
Design & detailed quote
3D visualisations plus a full written quote covering layout, windows, staircases and structural work, valid for 60 days.
3
Planning & Building Regulations
We prepare and submit every application, liaising directly with Oxford City Council on your behalf.
4
Construction
Scaffolding and roof opening, then structural work, external dormer/roofing, and finally electrics, plumbing, insulation and plastering.
5
Finishing & handover
Decorating, fixtures, final Building Control inspection, and a full handover pack with certificates and your 10-year guarantee.

Where we work

Covering every corner of Oxford.

Central & North

JerichoSummertownNorth OxfordSt Clements

East Oxford

IffleyHeadingtonCowleyBartonMarstonRisinghurst

West & South

BotleyOsneyKenningtonLittlemoreWolvercote

We also cover Kidlington, Abingdon, Witney and other Oxfordshire locations within 15 miles of the city centre — and know the local building styles and planning quirks of every one of them.

Questions

Frequently asked questions.

How long does a loft conversion take in Oxford?

Most projects take 6–12 weeks of construction: rooflight conversions are fastest at 4–6 weeks, dormers take 6–8 weeks, and hip to gable or mansard conversions take 8–12 weeks. Add planning approval time if your project needs it.

Will I need to move out during the work?

No — almost all our clients stay in their home throughout. Construction happens above your living space, dust barriers protect the rest of the house, and any brief service interruptions are scheduled and communicated in advance.

How much value does a loft conversion add to an Oxford home?

Typically 20–30%, depending on property type and conversion quality. Adding a bedroom with an en-suite bathroom generally delivers the strongest return.

Do all Oxford loft conversions need planning permission?

No — many qualify as permitted development, particularly rear dormers and rooflight conversions. Conservation areas, listed buildings, front dormers and hip to gable projects are more likely to need permission. We check this during your free survey.

What’s the minimum ceiling height for a loft conversion?

Building Regulations require at least 2.2m of headroom across 50% of the loft area. Most Oxford properties with a pitched roof already have this; where they don’t, we discuss options during your survey.

Can you add a bathroom to my loft conversion?

Yes — a full bathroom or en-suite typically adds £4,000–£8,000 and makes the new space significantly more functional and valuable.

What if you find structural problems once work has started?

Our upfront survey catches almost everything, but if anything unexpected turns up we stop, explain the issue and cost options, and never proceed without your written approval.

Get started

Ready to start your Oxford loft conversion?

Join the hundreds of Oxford homeowners who’ve added space and value to their home with us. Ten years of local experience, transparent pricing, and a 10-year structural guarantee on every job.

5.0

★★★★★

Average client rating

Prefer to talk it through? Call 07881 005220 — Mon–Fri 8am–6pm, Sat 9am–4pm.