Commercial EPC for an Office Fit-Out: From As-Built Evidence to a Clean Rating

Case study feature

The Result

An office fit out needed a commercial EPC ready for letting, but lighting, HVAC zoning and control strategies had evolved during delivery.
ATSPACE captured accurate as built evidence, aligned the SBEM assessment to what was actually installed, and issued a clean, compliant EPC that supported the landlord’s letting timeline — without last‑minute revisions.

Project Snapshot

Service: New build and conversion commercial EPC assessment
Client: Landlord representative + fit‑out contractor
Site: Meridian House, Suite Levels 2–4, 60 Kingsway, Manchester M1 6QX
Building type: Office fit out within existing commercial building
Floor area assessed: Approx. 3,200 m² NIA
Services: Fit‑out lighting, local controls, modified HVAC zoning, updated ventilation strategy
Programme stage: End of fit out, ready for inspections + letting
Client objective: EPC issued for completed demise and included in letting pack
ATSPACE delivery: Evidence review, on‑site confirmation, EPC model update, EPC lodgement, landlord summary
Assessors: ATSPACE commercial energy assessor team + compliance coordinator

Why Office Fit Out EPCs Get Messy

Office fit outs involve continuous change, and documentation often lags behind installation.

Common causes of EPC issues include:

  • lighting layouts revised without updating schedules
  • control strategies changed to suit tenant / CAT‑A / CAT‑B needs
  • HVAC zoning altered during services coordination
  • evidence not compiled into one place
  • EPC based on early drawings instead of the as‑built install

The landlord needed certainty — a correct EPC delivered in time to allow letting to proceed.

What ATSPACE Was Asked To Do

  • confirm what was actually installed (lighting, HVAC, controls, ventilation)
  • ensure EPC was based on as built evidence, not outdated drawings
  • avoid repeated information requests at handover
  • issue the EPC in time for the landlord’s letting programme

What ATSPACE Did

Step 1: Evidence first, then assessment

We requested only the data that moves the EPC outcome:

  • final lighting layout + luminaire schedule
  • lighting control strategy
  • HVAC zoning + control logic
  • ventilation strategy + operation
  • metering / central control integration
  • updated plans reflecting final demise boundary

Step 2: On‑site confirmation

We visited site with the fit‑out team to confirm:

  • luminaires installed matched the schedule
  • controls were configured as described
  • HVAC and ventilation matched the intended zoning
  • the demise boundary and areas were accurate

This prevented disputes later.

Step 3: Close out late changes properly

Two typical late‑stage issues were found:

  • lighting substitution in one zone
  • control variation for meeting‑room spaces

We captured these clearly and updated EPC inputs accordingly.

Step 4: Issue the EPC for the letting pack

Once evidence was complete and consistent, we lodged and issued the EPC and produced a short summary for the landlord’s marketing and legal documentation.

Problems Faced — and How They Were Solved

Problem 1: Lighting schedule did not match installation

Fix: Confirmed installed products, updated controls + luminaire performance, aligned the EPC inputs.

Problem 2: HVAC control description unclear

Fix: Worked with the service team to document zoning + control intent clearly and incorporate into the EPC evidence pack.

Problem 3: Demise boundary changed late

Fix: Reconfirmed final NIA and updated the model so the EPC matched the marketed space.

Outcome

The EPC was issued without delaying landlord sign‑off or letting activity.

Project outcomes:

  • EPC ready for inclusion in letting pack
  • assessment aligned with as‑built evidence
  • fewer queries and no rework cycle
  • clean, complete, audit‑ready evidence trail

Common Mistakes This Project Avoided

  • relying on early drawings after layout changes
  • letting lighting substitutions drift without evidence
  • vague controls narratives causing conservative assumptions
  • issuing EPC too late and holding up letting
  • treating EPC as paperwork instead of an evidence‑driven deliverable

CTA

If you need a commercial EPC for an office fit out — delivered cleanly, accurately, and without delays — ATSPACE will capture the as‑built evidence properly, align the assessment, and provide a certificate ready for letting or handover.

Ask for:

  • office fit‑out commercial EPC assessment
  • evidence capture + on‑site confirmation
  • EPC issue aligned to landlord inspections + letting
  • support where late design changes risk delaying certification

Frequently Asked Questions

Do office fit outs need a new EPC every time?
It depends on how the space will be let or sold and what has changed. Confirm early to avoid delays.

What evidence matters most?
Lighting performance + controls, HVAC type/strategy, ventilation approach, and accurate areas/demise boundary.

What is the biggest cause of EPC delays?
Documentation drift — the install changes, but schedules and evidence do not.