Extension

·

St Albans

Marlborough Road

Two extensions on a 1930s semi

Final account

Handed over

Agreed

£151,200

£151,200

£151,200

Changes

£3,600

£3,600

£3,600

Final

£154,800

£154,800

£154,800

The change

Bifold doors widened to four panels, priced and signed in week 9 before we ordered them.

The same room finished and empty, with two roof windows and four-panel bifold doors

Weeks on site

31

31

Area added

41 m²

41 m²

Drawings

Kerr Dalton Architects

Kerr Dalton Architects

Budget band

£140k to £170k

£140k to £170k

The Friday reports

Week by week to handover.

  1. Site cleared, carport downWeek 1Done
  2. Blockwork to first floorWeek 6Done
  3. Roof on, openings boardedWeek 10Done
  4. Windows in, scaffold struckWeek 14Done
  5. First fix and plasterWeek 18Done
  6. Render on, terrace nextWeek 24Done
  7. HandoverWeek 31Done
Marlborough Rd · rearWeek 31 of 31
Week 14 at Marlborough Road: grey blockwork shell with windows fitted, bricks and tarpaulins in the gardenWeek 31 at Marlborough Road: the same house finished, extensions rendered white with French doors onto a paved terrace
Spent of £151,200
£154,800
Budget band
£140k to £170k

The Friday reports

Week by week to handover.

  1. Site cleared, carport downWeek 1Done
  2. Blockwork to first floorWeek 6Done
  3. Roof on, openings boardedWeek 10Done
  4. Windows in, scaffold struckWeek 14Done
  5. First fix and plasterWeek 18Done
  6. Render on, terrace nextWeek 24Done
  7. HandoverWeek 31Done
Marlborough Rd · rearWeek 31 of 31
Week 14 at Marlborough Road: grey blockwork shell with windows fitted, bricks and tarpaulins in the gardenWeek 31 at Marlborough Road: the same house finished, extensions rendered white with French doors onto a paved terrace
Spent of £151,200
£154,800
Budget band
£140k to £170k

The Friday reports

Week by week to handover.

  1. Site cleared, carport downWeek 1Done
  2. Blockwork to first floorWeek 6Done
  3. Roof on, openings boardedWeek 10Done
  4. Windows in, scaffold struckWeek 14Done
  5. First fix and plasterWeek 18Done
  6. Render on, terrace nextWeek 24Done
  7. HandoverWeek 31Done
Marlborough Rd · rearWeek 31 of 31
Week 14 at Marlborough Road: grey blockwork shell with windows fitted, bricks and tarpaulins in the gardenWeek 31 at Marlborough Road: the same house finished, extensions rendered white with French doors onto a paved terrace
Spent of £151,200
£154,800
Budget band
£140k to £170k

The job

A two-storey side extension and a single-storey rear room on a pebble-dashed semi. The family stayed in throughout. 31 Friday reports.

A two-storey side extension and a single-storey rear room on a pebble-dashed semi. The family stayed in throughout. 31 Friday reports.

Photos

Brett Jordan

The brief

More room for a family of five without moving: a bedroom and a shower room over a new side extension, and a kitchen that opens onto the garden. The old carport had to go, and the house had to stay liveable, because nobody wanted to rent for seven months.

What we built

A two-storey side extension in blockwork with a tiled roof to match the house, and a single-storey rear room with two roof windows and four-panel bifold doors. Kerr Dalton Architects drew it; we priced the drawings before planning went in, so the family knew the number before they knew the permission.

  • Steel over the new opening into the old kitchen

  • Party wall agreements with both neighbours

  • Render, terrace and drainage to finish

How the money went

Agreed at £151,200. One change, the wider bifolds, added £3,600 and was signed before anything was ordered. The final account was £154,800, and the family saw every pound of it build up in the Friday reports.

“The family saw every pound of it build up in the Friday reports.”

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