Table of Contents
- How much does a loft conversion cost in Peckham?
- Add-ons to budget for
- What’s included in those prices (and what isn’t)
- What drives loft conversion cost up — or down
- Planning permission & building regulations in Peckham
- Timeline: how long does a loft conversion take?
- ROI: how much value can a loft conversion add in Peckham?
- How to choose the right loft conversion company in Peckham
- Budget-smart tips (without cutting corners)
- Example Buildaway packages (guide pricing)
- FAQs (Peckham)
- Why Peckham homeowners choose Buildaway
Peckham (SE15) is one of South East London’s most vibrant neighbourhoods, known for its creative energy, independent shops, rooftop bars, and green spaces like Peckham Rye Park. With fast Overground connections from Peckham Rye and Queen’s Road stations, plus easy links to London Bridge, it’s popular with young families and professionals. The housing stock is diverse, from Victorian and Edwardian terraces to post-war council homes and modern flats. Many of these properties — particularly the terraces and semis — are well suited to loft conversions, giving homeowners extra living space without sacrificing their gardens.
Running out of space in Peckham? A loft conversion can transform your unused roof space into a stylish new bedroom, en-suite, or home office, while adding significant value to your property. This Peckham-specific guide provides 2025 cost ranges, explains what’s included, outlines planning and building regulations, reviews timelines and ROI potential, and shares expert advice for choosing the right builder.
How much does a loft conversion cost in Peckham?
Pricing below reflects South East London / Peckham market rates for 2025 (labour + materials), with insulation, structural works, and a compliant finish.
| Conversion Type | Typical Total Range (2025) | Best For | What You Typically Get |
|---|---|---|---|
| Velux / Rooflight | £25,000 – £35,000+ | Economical extra room | Joists/steels, insulation, 1–2 rooflights, plaster finish, sockets/lighting, heating tie-in |
| Rear Dormer (most popular) | £35,000 – £55,000+ | Full-height bedroom + en-suite | Everything in Velux plus dormer build, external cladding, staircase, more daylight and usable floorspace |
| Hip-to-Gable (with or without dormer) | £50,000 – £65,000+ | 1930s semis and end-terraces in Peckham | Extend hip to gable, new steels, more floorspace; often combined with a rear dormer |
| Mansard | £60,000 – £80,000+ | Victorian terraces / conservation zones | Roof rebuild, mansard walls/windows, bespoke staircase, high insulation, maximum headroom |
Add-ons to budget for:
- En-suite fit-out: £4,000 – £8,000+
- Juliet balcony / feature glazing: £2,000 – £6,000+
- Bespoke staircase/joinery: £1,500 – £4,000+
What’s included in those prices (and what isn’t)
Included:
- Measured survey, structural calcs, Building Control liaison
- New steels, joists, floor deck
- Roof alterations (Velux, dormer, hip-to-gable, mansard)
- Insulation to Part L standards
- Fire safety: alarms, FD30 doors, escape windows
- Electrical and heating circuits
- Plaster finish and basic joinery
- Standard staircase (Part K compliant)
- Building Control inspections & certification
Exclusions:
- Bathroom sanitaryware & tiling
- High-end designer finishes (stone tops, crittall glazing)
- Planning application and Party Wall surveyor fees
- Full re-roof beyond loft scope
- Full decorating beyond basic paint
What drives loft conversion cost up — or down
Cost drivers (increase costs):
- Mansards vs. Velux/dormers
- Structural steelwork in older Victorian Peckham terraces
- Bespoke staircases in narrow layouts
- Bathrooms with premium tiling/fixtures
- Juliet balconies or large glazing
- Conservation restrictions near Peckham Rye Park or Rye Lane heritage buildings
- Tight access on busy terraced streets
Ways to manage costs:
- Keep within Permitted Development rights
- Align plumbing above existing bathrooms
- Use standard staircase layouts
- Upgrade only visible, high-impact finishes
Planning permission & building regulations in Peckham
- Permitted Development (PD): Most Velux and some dormers qualify under PD.
- Planning permission: Needed for mansards, front dormers, or homes in conservation-sensitive areas.
- Party Wall etc. Act 1996: Applies to most terraces/semis in SE15; budget £1,000–£2,000+ per neighbour.
Building Regulations:
- Part A – structural works
- Part B – fire safety (escape windows, alarms, fire doors)
- Part K – staircase headroom/pitch
- Part L – insulation
- Part P – electrics
- Ventilation for bathrooms/en-suites
Timeline: how long does a loft conversion take?
- Pre-construction (design/approvals): 3–8 weeks
- Velux build: 4–6 weeks
- Rear Dormer: 6–8 weeks
- Hip-to-Gable / Mansard: 8–12+ weeks
- Snagging & sign-off: 1–2 weeks
ROI: how much value can a loft conversion add in Peckham?
A loft conversion in Peckham typically increases property value by 10–20%. With strong demand from families and professionals near transport links, Rye Lane, and schools, an extra bedroom or en-suite offers excellent return on investment.
How to choose the right loft conversion company in Peckham
- End-to-end service: design, structural, build, finishes
- Transparent pricing with itemised scope
- Proven Building Control sign-offs and Part P certification
- Fire safety built into every project
- Buildaway’s 18-month workmanship warranty
- Local references from projects across SE15
Budget-smart tips (without cutting corners)
- Plan headroom early for Victorian terraces
- Fix staircase layout early in design
- Keep bathrooms/en-suites above existing services
- Spend on insulation and airtightness
- Upgrade visible finishes (lighting, brassware, glazing)
Example Buildaway packages (guide pricing)
- Velux Room-in-Roof — £27,500–£34,500
Includes floor structure, rooflights, insulation, staircase, electrics/heating, plaster finish. - Rear Dormer + En-suite Ready — £42,000–£56,000
Includes dormer structure, staircase, insulation upgrades, M&E, plaster finish. En-suite +£4,000–£8,000. - Hip-to-Gable with Rear Dormer — £54,000–£68,000
Includes hip-to-gable build, steels, dormer, staircase, plaster finish, full compliance.
(All guide prices include labour, materials, waste removal, and Building Control. Final quotes vary by survey, access, and specification.)
FAQs (Peckham)
Do I need planning permission?
Not usually for Velux/rear dormers under PD; yes for mansards, front dormers, or conservation-sensitive areas.
Can I add an en-suite?
Yes — typically £4,000–£8,000+.
Will my roof need strengthening?
Yes, most Peckham homes require steels and joists.
Can we live at home during the build?
Yes, homes remain secure/weatherproof during works.
How do you handle fire safety?
Linked alarms, FD30 doors, compliant escape routes, protected staircase.
What warranty do you provide?
Buildaway provides an 18-month workmanship warranty.
Why Peckham homeowners choose Buildaway
Local experience across SE15.
Compliance-first delivery (Regs + Party Wall).
Transparent pricing with no hidden extras.
Skilled in-house team delivering start-to-finish projects.
18-month workmanship warranty and responsive aftercare.
High-quality materials and finishes for a lasting investment.